Cavalry Market Benchmark

Setup	Accuracy	Right	Partial	Wrong or no answer	Median response
GPT 6.1 web search only	40.8%	14	21	25	48.7s
GPT 6.1 with Cavalry	95.8%	56	3	1	24.3s
Claude Opus 5.5 web search only	67.5%	34	13	13	51.2s
Claude Opus 5.5 with Cavalry	90.0%	50	8	2	20.7s

Question 1Intraday

C3.ai (AI) gapped up at the open on Monday Oct 12, 2026. Using regular session trades only: how big was the opening gap versus the Oct 9 close, at what time (ET) did AI print its high of the day, what was its % change from the 9:30 open to 10:30 ET, and when (if at all) did it trade back down to the Oct 9 close?

Correct answer

AI opening gap vs prior close: +6.68%
Time of AI high: 09:38 ET
AI move from open to 10:30: −3.46%
Time AI first traded back through the prior close (gap fill): 15:46 ET

GPT 6.1 web search only Wrong 59.9s

The daily sources agree on the October 9 close of $11.53, but differ on Monday’s open ($12.25 versus $12.30). I’m checking for timestamped intraday data to resolve that difference and verify the high and gap-fill times.

I could verify the daily prices, but couldn’t retrieve timestamped regular-session trades to answer all four precisely.

Requested measure	Verified result
Opening gap versus Oct. 9 close	Using the reported $12.30 open and $11.53 prior close: +$0.77 (+6.68%). Stock Analysis
High of the day and time	Reported high: $12.88. Time unverified. Stock Analysis
Change from 9:30 to 10:30 ET	Unverified; I couldn’t obtain the 10:30 trade price.
Return to the Oct. 9 close	The reported $11.51 session low indicates it traded below $11.53, filling the gap. First touch/crossing time unverified. Stock Analysis

There’s also a feed discrepancy: ChartExchange reports a $12.25 open, implying +$0.72 (+6.24%), and a $12.86 high. Without the intraday trade record, I can’t resolve that discrepancy or supply reliable ET timestamps.

GPT 6.1 with Cavalry Right 27.7s

For C3.ai common stock (AI), October 12, 2026, using regular session 1 minute bars only:

Opening gap: +$0.77, or +6.68%. The 09:30 ET bar opened at $12.30 versus the October 9 official daily close of $11.53 at 16:00 ET.

Day’s high: $12.88 in the 09:38 ET minute.

09:30 open to 10:30 ET: −3.46%. Calculation: 11.875 / 12.30 − 1. The $11.875 endpoint is the 1 minute close ending at 10:30 ET, not the close of the minute starting then.

Gap filled in the 15:46 ET minute. That was the first 1 minute bar to reach or cross $11.53; its low was $11.51.

The bars identify the high and gap fill to the minute, not the exact trade second.

Claude Opus 5.5 web search only Right 130.0s

AI opened about 6.7% above Friday's close, peaked at 9:38 ET, and didn't trade back down to the Oct 9 close until 3:46 PM. All figures come from Yahoo Finance 1-minute regular-session bars. I didn't check them against a second source.

1. Opening gap

Oct 9 close: $11.53 (Yahoo's "previous close").
Oct 12 open (9:30 ET): $12.30.
The gap was +$0.77, or about +6.7%.

2. High of the day: $12.88 at 9:38 ET

That high came in the 9:38 bar, about 8 minutes after the open, on the heaviest early volume (~406K shares that minute).
The stock faded from there.

3. Change from the 9:30 open to 10:30 ET: about −3.5%

Last trade before 10:30 (close of the 10:29 bar): $11.875, or −3.46% from $12.30.
The 10:30 bar opened at $11.87 (−3.50%) and closed at $11.855 (−3.62%).
The answer is roughly −3.5% whichever of these you use.

4. Return to the Oct 9 close: yes, first at 3:46 PM ET

The stock drifted lower all afternoon and first reached $11.53 in the 3:46 bar, which traded as low as $11.51.
The day's low was $11.505 at 3:47 PM.
It closed at $11.61, up 0.69% on the day, so almost the whole opening gap was gone by the close.

Sources:

Claude Opus 5.5 with Cavalry Right 18.7s

AI gapped up 6.68% on Oct 12, then gave the gain back. It hit its high of the day at 09:38 ET and first traded back down to the Oct 9 close at 15:46 ET.

Measure	Value
Oct 9 official close	11.53
Oct 12 regular session open (09:30)	12.30
Opening gap	+0.77, +6.68%
High of day	12.88 in the 09:38 ET 1 minute bar
Price at 10:30 ET	11.875 (close of the 10:29 1 minute bar)
Open to 10:30 change	−3.46%
First trade at or below 11.53	15:46 ET 1 minute bar (low 11.51)
Low of day	11.505 in the 15:47 bar
Oct 12 close	11.61

Gap: 12.30 / 11.53 − 1 = 6.68%.
High: At 12.88, the stock was 11.71% above the Oct 9 close. It never reached that level again. The official daily high is also 12.88, so it matches the 1 minute bars.
Open to 10:30: 11.875 / 12.30 − 1 = −3.46%. By 10:30 the stock had lost about half of the gap. The lowest it went before 10:30 was 11.79, in the 10:25 bar.
Back to the Oct 9 close: It came close at 15:06 ET with a low of 11.56. It first traded through 11.53 in the 15:46 bar, which is how the gap filled. It then closed at 11.61, still 0.69% above the Oct 9 close.

The times come from 1 minute regular session bars.

Question 2Intraday

Cleveland Cliffs (CLF) opened Oct 6, 2026 well above its Oct 5 close. What was the opening gap, what were the high and low of the first 15 minutes (9:30 to 9:45 ET), at what time did the gap fill (first trade below the Oct 5 close), and what was CLF's open to close % change that day?

Correct answer

CLF opening gap vs prior close: +5.57%
CLF 15 minute opening range high: $12.88
CLF 15 minute opening range low: $12.13
Time CLF first traded back through the prior close (gap fill): 09:42 ET
CLF move from open to close: −4.89%

GPT 6.1 web search only Partial 48.0s

The daily data agrees on a $12.20 prior close, a $12.88 open, and a $12.25 close. That gives a 5.57% opening gap and a 4.89% open-to-close decline. I’m still checking the intraday range and fill time.

CLF’s Oct. 6, 2026 opening gap was +$0.68 (+5.57%), from the Oct. 5 close of $12.20 to the Oct. 6 open of $12.88. Its open-to-close change was −4.89%, closing at $12.25: (12.25 / 12.88 − 1) × 100. Historical prices

The first-15-minute high was $12.88, inferred because the opening price also equaled the full-day high. I couldn’t verify the 9:30–9:45 ET low or the first trade below $12.20 from accessible intraday data. The daily low of $12.13 confirms the gap filled that day, but doesn’t establish the time. Daily OHLC data

GPT 6.1 with Cavalry Right 21.8s

CLF common stock opened up $0.68 (+5.57%) on October 6, 2026, then filled the gap during the 09:42 ET minute.

All times below are ET:

Opening gap: $12.88 at 09:30 on October 6 versus the October 5 official daily close of $12.20 at 16:00.
First 15 minutes, 09:30 to 09:45: high $12.88 in the 09:30 one minute bar; low $12.13 in the 09:44 one minute bar.
Gap fill: the 09:42 to 09:43 one minute bar was the first with trades below $12.20, reaching $12.19. The bars establish the minute, not the exact trade second.
Open to close change: −4.89%, calculated as ($12.25 / $12.88 − 1) × 100, using October 6’s official daily open at 09:30 and close at 16:00.

Claude Opus 5.5 web search only Right 43.5s

CLF opened 5.57% above its Oct 5 close on Oct 6, 2026, filled the gap at 9:42 ET, and closed 4.89% below its open.

Metric	Value
Oct 5 close	$12.20
Oct 6 open	$12.88
Opening gap	+$0.68 (+5.57%)
First 15 min high (9:30–9:45 ET)	$12.88, the opening print at 9:30
First 15 min low	$12.13, in the 9:44 bar
Gap fill	9:42 ET. The 9:42 one-minute bar traded down to $12.19, the first trade below $12.20.
Oct 6 close	$12.25
Open-to-close change	−$0.63 (−4.89%)

What happened: CLF fell almost without a pause from the open. Every bar from 9:30 to 9:41 held above $12.20, then the 9:42 bar went under it. The $12.13 low in the first 15 minutes was also the low for the whole day. The stock recovered slightly to close at $12.25, still above the Oct 5 close, so it finished the day up about 0.4%.
Catalyst: The gap followed Wells Fargo's upgrade of CLF to Overweight from Equal Weight, with a $14 price target.
Data source: The prices are Yahoo Finance one-minute and daily bars, which come from consolidated tape data. A different data vendor could show slightly different prints, especially at the open. The 9:44 bar was the last full bar inside 9:30–9:45. MarketBeat's alert matches the $12.20 close and the $12.88 open.

Sources:

Claude Opus 5.5 with Cavalry Right 18.3s

CLF gapped up +5.57% on Oct 6, 2026 and filled the whole gap within 12 minutes, in the 9:42 ET minute. It then lost 4.89% from open to close.

Measure	Value	Time (ET)
Oct 5 official close	12.20	16:00 Oct 5
Oct 6 official open	12.88	09:30
Opening gap	+0.68 (+5.57%)
First 15 min high	12.88	09:30 1 min bar (the opening print)
First 15 min low	12.13	09:44 1 min bar
Gap fill (first trade below 12.20)	12.19 low	09:42 1 min bar
Oct 6 official close	12.25	16:00
Open to close	−4.89%

How the numbers work out:

Gap: 12.88 − 12.20 = 0.68, and 0.68 / 12.20 = +5.57%.
First 15 minutes (09:30 to 09:45): the three 5 minute bars had highs of 12.88, 12.54 and 12.365. Their lows were 12.49, 12.30 and 12.13. The 12.88 open was also the high for the whole day, and the 12.13 low at 09:44 was the low for the whole day.
Gap fill: the 1 minute bars at 09:40 and 09:41 had lows of 12.29 and 12.305, still above 12.20. The 09:42 bar traded down to 12.19, the first trade below the Oct 5 close.
Open to close: 12.25 / 12.88 − 1 = −4.89%. CLF spent the rest of the day between about 12.13 and 12.40. It closed only 0.41% above the Oct 5 close, so almost the whole opening gap was given back.

Question 3Intraday

Ginkgo Bioworks (DNA) had a very wide range on Oct 9, 2026. Give the regular session low and the time it printed, the regular session high and the time it printed, and DNA's % change from the 9:30 open to 10:30 ET.

Correct answer

DNA regular session low: $11.48
Time of DNA low: 09:32 ET
DNA regular session high: $13.55
Time of DNA high: 13:41 ET
DNA move from open to 10:30: +9.27%

GPT 6.1 web search only Wrong 48.3s

The daily data shows a low of $11.4802 and a high of $13.555. I’m still looking for timestamped intraday data to verify when those traded and calculate the first-hour return.

I could verify DNA’s October 9, 2026 daily prices, but couldn’t obtain timestamped intraday data:

Requested item	Verified price	Time (ET)
Session low	$11.4802	Unverified
Session high	$13.555	Unverified
Opening price	$11.76	Session open

Source: Bullstory’s daily record.

The 9:30–10:30 ET percentage change remains unverified because I couldn’t confirm the 10:30 price. It would be calculated as (10:30 price ÷ $11.76 − 1) × 100.

GPT 6.1 with Cavalry Right 19.5s

DNA common stock, October 9, 2026, regular session:

Low: $11.4802, in the 09:32 ET 1 minute bar.
High: $13.555, in the 13:41 ET 1 minute bar.
09:30 open to 10:30 ET: +9.27%, from $11.76 at the 09:30 1 minute open to $12.85 at the 10:30 5 minute close.

Calculation: (12.85 / 11.76 − 1) × 100 = 9.27%.

The extreme times identify the minute containing each print, not its exact second.

Claude Opus 5.5 web search only Partial 108.9s

DNA's regular-session low on Oct 9, 2026 was $11.48 at 9:32 ET, the high was $13.555 at 13:41 ET, and it was up about 9.3% from the 9:30 open to 10:30 ET. These numbers come from Yahoo Finance 1-minute bars.

Metric	Price	Time (ET)
Low	$11.4802	9:32 (the 9:32–9:33 bar)
High	$13.555	13:41 (the 1:41–1:42 PM bar)
Open	$11.76	9:30

From 9:30 open to 10:30 ET:

Using the 10:30 price ($12.85, the open of the 10:30 bar): +9.27%
Using the 10:30 bar's close ($12.80): +8.84%

DNA dropped to its low two minutes after the bell, about 1.2% below the $11.34 prior close. It climbed through the morning, passed $13 just before 10:30, and peaked in the early afternoon. That's a range of about $2.07, or roughly 18% of the low.

Caveats:

I pulled the full trading day once to find the high and low, then pulled the raw bars again for the open, the low, the 10:30 window and the high, and all of them matched. The full day wasn't listed bar by bar a second time, though, so there's a small chance a higher or lower print came at another time.
Yahoo's 9:30 bar shows zero volume, so the official NYSE opening price could differ slightly from $11.76. That would change the % figure a little.
The closing price differs by source: Yahoo shows $13.00 (+14.6%) and Morningstar shows $13.08 (+15.4%).
I didn't find a clear news reason for the move that day. A Timothy Sykes piece links the rally to AI drug-discovery deals, but it's dated Oct 11.

Sources:

Claude Opus 5.5 with Cavalry Right 14.6s

DNA common stock on Oct 9, 2026, regular session from 09:30 to 16:00 ET:

Item	Price	Time (ET)
Low	11.48	09:32
High	13.56	13:41
Open to 10:30 move	+9.27%	09:30 to 10:30

Low: The official daily low was $11.48. The lowest 1 minute bar was the 09:32 bar at $11.4802, so the low came about two minutes after the open.
High: The official daily high was $13.56. The highest 1 minute bar was the 13:41 bar at $13.555, so the high came in the early afternoon. That puts the day's range at about $2.08, or roughly 18% of the low.
Open to 10:30: The stock opened at $11.76. The 1 minute bar ending at 10:30 closed at $12.85. 12.85 / 11.76 − 1 = +9.27%.
Against the previous close: Measured from the Oct 8 close of $11.335 instead of the open, DNA was up +13.37% at 10:30. It closed the day at $13.00 on 4.51M shares.

Question 4Intraday

On Oct 8, 2026, what were SECZ's regular session low and high, at what times (ET) were they printed, and what was the % move from that low to that high?

Correct answer

SECZ regular session low: $10.85
Time of SECZ low: 09:42 ET
SECZ regular session high: $12.82
Time of SECZ high: 10:31 ET
Low to high move: +18.16%

GPT 6.1 web search only Partial 43.8s

The historical tables agree on a $10.85 low and a $12.82 high, a rise of about 18.16%. I’m still checking for intraday timestamps; the daily tables don’t show when those prices printed.

SECZ’s October 8, 2026 session low was $10.85 and high was $12.8198 ($12.82 rounded), according to ChartExchange’s historical data.

The low-to-high move was +18.15%:
\[
(12.8198-10.85)/10.85 \times 100
\]

I couldn’t verify the ET print times from accessible intraday data; the daily tables don’t provide those timestamps.

GPT 6.1 with Cavalry Right 18.7s

On Oct 8, 2026, SECZ’s regular session extremes were:

Extreme	Price	ET minute
Low	$10.85	09:42
High	$12.8198	10:31

The move from low to high was +18.15%: (12.8198 / 10.85 − 1) × 100.

Times identify the 1 minute bars containing the prints, not exact trade seconds. Prices are split adjusted.

Claude Opus 5.5 web search only Right 97.1s

Times need intraday data. Let me try a few more sources.

On Oct 8, 2026, SECZ (Securitize Corp., NYSE) went from a regular-session low of $10.85 at 9:42 AM ET to a high of $12.82 at 10:31 AM ET, a gain of about 18.2%.

	Price	Time (ET)
Low	$10.85	9:42 AM (the 1-minute bar starting 9:42)
High	$12.82 ($12.8198)	10:31 AM (the 1-minute bar starting 10:31)

Move from low to high: ($12.8198 − $10.85) / $10.85 ≈ +18.2% (18.16%).
Order: The low came first, so this was an actual rise within the day, not just the size of the day's range.
Source of the times: I pulled them from Yahoo Finance's 1-minute chart data for 9:30 AM–4:00 PM ET (391 bars). The $10.85–$12.82 range matches what AAII and Benzinga reported.
Rest of the day: No later bar went higher; the closest were $12.80 around 3:24 PM and $12.78 around 1:46 PM. Benzinga reports a close of $12.66, up about 11%. It also says the stock reached about $13.92 after hours, but that is outside the regular session.
Why it moved: Securitize announced tokenized U.S. stocks on Solana (Apple, Nvidia, Tesla and others) that day.

Minute-level times can shift by a minute between data vendors. If you need them exactly, check against an exchange-grade feed.

Sources:

Claude Opus 5.5 with Cavalry Right 14.7s

On Oct 8, 2026, SECZ's regular session low was $10.85 at 09:42 ET and its high was $12.82 at 10:31 ET. Price rose about 18.2% from the low to the high.

Point	Price	Time (ET)
Low	10.85	09:42
High	12.8198	10:31

Where the numbers come from: the times come from 1 minute bars, with each bar named by its start minute. The low and high match the official daily bar for the session (low 10.85, high 12.82). The 1 minute high printed at 12.8198, which the daily bar rounds to 12.82.
The move: 12.8198 / 10.85 − 1 = 18.15%. Using the official 12.82 gives 12.82 / 10.85 − 1 = 18.16%.
Order: the low came first. SECZ opened at 11.64, sold off into 09:42, then rallied to the day's high 49 minutes later. It touched 12.80 again at 15:24 ET and closed at 12.66.

Question 5Intraday

Micron (MU) gapped down at the open on Oct 7, 2026. What was the gap versus the Oct 6 close, the session low and its time, the time the gap was filled (first trade back above the Oct 6 close), and MU's final hour move from the 15:00 ET price to the close?

Correct answer

MU opening gap vs prior close: −2.70%
MU regular session low: $1,011.42
Time of MU low: 09:31 ET
Time MU first traded back through the prior close (gap fill): 10:18 ET
MU move from 15:00 to close: +0.26%

GPT 6.1 web search only Partial 84.3s

The daily prices show a $28.19 opening gap down (2.70%) and a session low of $1,011.42. I’m still checking intraday data for the low’s time, the first trade above the prior close, and the 15:00 ET price.

I could verify the gap and low, but couldn’t obtain the intraday trade data needed for the other two figures.

Metric	October 7, 2026 result
Opening gap versus October 6 close	−$28.19 (−2.70%): $1,017.37 open versus $1,045.56 prior close. Price history
Session low and time	$1,011.42 at 09:31 ET. Contemporaneous recap
First trade above $1,045.56—the gap fill	Time unverified
Final-hour move, 15:00 ET to close	Unverified: the close was $1,088.00, but I couldn’t verify the 15:00 price. Closing data

Daily OHLC data cannot establish the first-trade gap-fill timestamp or the final-hour return.

GPT 6.1 with Cavalry Right 32.1s

MU common stock, October 7, 2026. All times ET.

Measure	Result
Opening gap	−$28.19, −2.70%
Session low	$1,011.42 during 09:31
Gap filled	During 10:18
Final hour move	+$2.97, +0.27%

The 09:30 open was $1,017.37, versus the October 6 official daily close of $1,045.56 at 16:00.

The first 1 minute bar trading above that prior close began at 10:18. Both the low and gap fill are timed to the minute, not the exact trade second.

The final hour rose from $1,085.03 at the 15:00 ET 5 minute close to $1,088.00 at the 16:00 official daily close.

Claude Opus 5.5 web search only Wrong 44.5s

I could confirm the gap and the session low, but not the three timestamped figures. None of the sources I could reach publish minute-by-minute (intraday) MU prices for Oct 7, 2026.

What I could confirm (daily data):

	Price
Oct 6 close	$1,045.56
Oct 7 open	$1,017.37
Gap	−$28.19 (−2.70%)
Oct 7 session low	$1,011.42
Oct 7 high	$1,089.22
Oct 7 close	$1,088.00 (+$42.44, +4.06%)

MU dropped about $6 below the open, then reversed and closed just under the day's high, roughly 7.6% above the low.

What I couldn't confirm:

Time of the session low: I couldn't find it. At 10:04 a.m. ET MU was at $1,034.33, which is above the low, so the low probably came in the first half hour. I can't confirm that.
Time the gap was filled: At 10:04 a.m. ET MU was still 1.07% below the Oct 6 close, so the stock got back above $1,045.56 sometime after 10:04. The high and the close were both well above that level, so the gap did get filled. I couldn't find the exact time.
Final-hour move (15:00 ET price to close): I couldn't find a 15:00 ET price, so I can't calculate it.

Brokerage charts (thinkorswim, IBKR, TradingView) or a minute-bar data source (Databento) would have all three. Look for the first 1-minute bar trading above $1,045.56, the bar with the $1,011.42 low, and the 15:00 bar.

Sources:

Claude Opus 5.5 with Cavalry Right 19.6s

MU opened down 2.70% on Oct 7, 2026, made its low in the second minute, filled the gap at 10:18 ET and closed up 4.06% on the day. In the final hour it rose 0.27%.

Item	Value	Time (ET)
Oct 6 official close	1045.56	16:00 Oct 6
Oct 7 official open	1017.37	09:30
Gap	−28.19 (−2.70%)	09:30
Session low	1011.42	09:31 1 min bar
Gap filled (first trade above 1045.56)	high of 1046.64	10:18 1 min bar
Price at 15:00	1085.03	14:59 1 min bar close
Official close	1088.00	16:00
Final hour move	+2.97 (+0.27%)	15:00 to 16:00

Gap: 1017.37 / 1045.56 − 1 = −2.70%.
Low: the 09:31 1 min bar traded down to 1011.42, which is also the official day's low. That is 3.27% under the Oct 6 close.
Gap fill: the 10:17 bar nearly got there, with a high of 1045.50, just short of 1045.56. The 10:18 bar was the first to trade above, reaching a high of 1046.64. The fill came 48 minutes after the open.
Final hour: the move was not a straight climb. MU dropped to 1078.69 on the 15:06 1 min bar, which is −0.58% from the 15:00 price. It then recovered to an official close of 1088.00. That is 1088.00 / 1085.03 − 1 = +0.27%.
Close data: the last 1 min bar closed at 1087.84. The official close of 1088.00 includes the closing auction.
Whole day: MU closed up 4.06% from the Oct 6 close and 7.57% above its morning low, finishing at 1088.00, just under the high of 1089.22.

Question 6Intraday

Nebius (NBIS) on Oct 6, 2026: what were the high and low of its 15 minute opening range (9:30 to 9:45 ET), at what time did it first trade above that range high, and what were the session high and its time?

Correct answer

NBIS 15 minute opening range high: $244.42
NBIS 15 minute opening range low: $237.00
First time NBIS traded above the 15 minute range high: 09:47 ET
NBIS regular session high: $255.08
Time of NBIS high: 14:03 ET

GPT 6.1 web search only Wrong 64.8s

I could verify NBIS’s session high was $255.10 on October 6, 2026, from ChartExchange’s historical data.

I couldn’t retrieve reliable intraday data to verify the 9:30–9:45 ET opening-range high and low, first trade above that high, or time of the session high. Daily OHLC data cannot establish those figures, so I won’t guess.

GPT 6.1 with Cavalry Right 15.6s

NBIS common stock, October 6, 2026, using split adjusted 1 minute bars. All times ET.

Measure	Price	Bar time
Opening range high	$244.42	09:33
Opening range low	$237.00	09:30
First trade above range high		09:47
Regular session high	$255.082	14:03

The opening range covers 09:30 up to, but excludes, 09:45. The first breakout occurred within the 09:47 to 09:48 bar; these bars cannot identify the exact second.

Claude Opus 5.5 web search only Wrong 28.0s

I couldn't find the intraday data you need. Free web sources don't publish minute-level history for this date, so I can't give you the 9:30–9:45 opening range, the time NBIS first broke above it, or the time of the session high.

Daily figures for Tuesday, Oct 6, 2026:

Open: $237.22
Low: $237.00. This is only $0.22 below the open, so the day's low was probably set at or near the open. That means it was likely also the low of the opening range, but I can't confirm that.
High: $255.10 (time not available)
Close: $249.87, up 7.44% from the prior close of $232.57
Volume: about 21.4M shares

What the news says about timing: A StockAnalysis headline says the big move ("NBIS jumped 8%") came in the Tuesday afternoon session. So the session high was probably set in the afternoon, not in the morning. Reported reasons for the rally were a broad move in AI infrastructure stocks after Marvell raised its long-term outlook, Microsoft and Meta commitments totaling about $32B, and a break above about $250. NBIS's COO also sold 500,000 shares that day under a pre-arranged plan.

How to get the exact numbers: Open a 1-minute or 5-minute NBIS chart for Oct 6, 2026 in TradingView or your broker's platform. Read the high and low of the 9:30–9:44 bars, find the first bar that trades above that high, and find the bar with the $255.10 high. If you can export the intraday bars as a CSV, I can work out all of these for you.

Sources:

Claude Opus 5.5 with Cavalry Right 20.8s

On Oct 6, 2026, NBIS (Nebius Group common stock) set a 15 minute opening range of $244.42 high and $237.00 low. It first traded above that high at 09:47 ET and made its session high of $255.08 at 14:03 ET.

Item	Value	Time (ET)
Opening range high	244.42	09:33
Opening range low	237.00	09:30
First trade above range high	245.10	09:47
Session high	255.08	14:03

Opening range (09:30 to 09:45): the three 5 minute bars had highs of 244.42, 244.10 and 243.80, and lows of 237.00, 238.84 and 240.08. On 1 minute bars, the high was set in the 09:33 bar and the low in the opening 09:30 bar.
Breakout: the 09:45 and 09:46 one minute bars stayed under the high, at 243.58 and 244.06. The 09:47 bar was the first to reach above it, with a high of 245.10, and it closed above it at 244.96.
Session high: 255.082 in the 14:03 one minute bar, about 4.4% above the range high. The opening range low of 237.00 was also the low for the whole regular session. The stock closed at $249.78 on the 15:59 one minute bar.

All times come from the regular session, 09:30 to 16:00 ET.

Question 7Intraday

CBRS on Oct 12, 2026: what was the 9:30 opening price, the % change from the open to 10:30 ET, the first time it traded below its 15 minute opening range low (9:30 to 9:45), and the session low and when it printed?

Correct answer

CBRS opening price: $160.62
CBRS move from open to 10:30: −6.20%
First time CBRS traded below the 15 minute range low: 09:46 ET
CBRS regular session low: $145.76
Time of CBRS low: 14:32 ET

GPT 6.1 web search only Wrong 31.0s

For CBRS on October 12, 2026, I could verify the daily prices, but couldn’t access intraday data to establish the requested times.

Metric	Verified result
9:30 ET opening price	$160.88
Change from open to 10:30 ET	Unable to verify
First trade below the 9:30–9:45 opening-range low	Unable to verify
Regular-session low	$145.75; print time unverified

The open and session low come from Stock Analysis’s historical data. The remaining results require timestamped intraday bars or trades; daily data alone cannot establish them.

GPT 6.1 with Cavalry Right 28.1s

CBRS common stock, October 12, 2026, regular session, all times ET:

Measure	Result
09:30 opening price	$160.62, 1 minute bar open
Open to 10:30 change	−6.20%, to $150.66 at the 10:30 5 minute close
15 minute opening range low	$155.62, in the 09:32 1 minute bar
First trade below that low	09:46, 1 minute bar low of $155.50
Session low	$145.76, in the 14:32 1 minute bar

Change: 150.66 / 160.62 − 1 = −6.20%.

The opening range includes 09:30 up to, but not including, 09:45. Bar data identifies the minute of the breach and session low, not the exact second.

Claude Opus 5.5 web search only Wrong 38.5s

I could find two of your four answers (the opening price and the session low's price), but not the times or the 10:30 price. Public pages only carry daily summary prices for this session, not minute-by-minute data.

What I found for CBRS (Cerebras Systems) on Monday, Oct 12, 2026:

Item	Value
Open (9:30)	$160.88, a gap down from Friday's close of $164.17 (Investing.com historical data)
Day high	$160.99 (Investing.com historical) or $161.20 (Investing.com quote page and Yahoo)
Session low (price)	About $145.75–$145.78 (sources differ by a few cents)
Close	$146.62, down 10.69% (−$17.55)

What I couldn't get:

% change from the open to 10:30 ET: No source shows the 10:30 price.
First break below the 9:30–9:45 opening-range low: I can't work out the opening-range low, so I can't find when it was broken.
Time of the session low: No source gives it.

Timing clues, which are not a substitute for real data:

A MarketBeat item published around 11:00 a.m. ET said the stock had reached a new 52-week low of $155.50 and last traded at about $152.43. By late morning it was well below the open.
Investing.com reported it down 10% at $147.76 in afternoon trading.
The close ($146.62) was less than $1 above the day's low. That suggests the low came late in the session, but I can't confirm when.

Why it fell: Microsoft said Oct 12 that its own Maia chips will become its main system for running AI models from 2027. A lock-up expiry was also due Oct 14, letting about 19.4M more shares be sold.

For the exact 10:30 price, opening-range break and time of the low, you'd need 1-minute bars from a broker platform, TradingView's intraday chart, or a data provider like Alpaca. If you get a 1-minute CSV, I can calculate all of these for you.

Sources:

Claude Opus 5.5 with Cavalry Right 15.2s

On Oct 12, 2026, CBRS opened at $160.62 and fell −6.20% from the open by 10:30 ET. It first traded below its 15 minute opening range low at 09:46 ET, and the session low was $145.76 at 14:32 ET.

Item	Value	Time (ET)
Opening price (open of the first 1 minute bar)	160.62	09:30
Price at 10:30 (close of the 10:29 bar)	150.66	10:30
Change, open to 10:30	−6.20%
15 minute opening range low (09:30 to 09:45)	155.62	09:32
First trade below that low	155.50	09:46
Session low	145.76	14:32

Open to 10:30: 150.66 / 160.62 − 1 = −6.20%.
Opening range: the high was 161.19 and the low was 155.62. The 09:45 bar held just above the low (its low was 155.69). The next bar, at 09:46, dipped to 155.50, the first trade below it.
Session low: printed in the 14:32 1 minute bar. The official daily bar shows the same low, 145.76. The stock closed at $146.62, down about 8.7% from the open.
Two figures for the open: the official daily bar has the open at $160.88, a little above the first 1 minute bar's 160.62. Measured from 160.88, the move to 10:30 is −6.35%.

Question 8Intraday

BlackBerry (BB) faded into the close on Oct 7, 2026. What was BB's price at 15:00 ET, its regular session close, the % change over that final hour, and at what time did it print its high of the day?

Correct answer

BB price at 15:00 ET: $9.18
BB regular session close: $8.77
BB move from 15:00 to close: −4.49%
Time of BB high: 09:34 ET

GPT 6.1 web search only Wrong 53.1s

The daily records agree on an $8.77 close and a $9.57 high. I’m still checking intraday records for the 15:00 price and the high’s timestamp.

BB’s regular-session close on October 7, 2026 was $8.77, and its daily high was $9.57. (Historical prices)

I couldn’t verify the 15:00 ET price or the time of the high from accessible intraday records, so I can’t reliably calculate the final-hour percentage change. The daily decline of 8.46% is measured from the previous close, not from 15:00.

GPT 6.1 with Cavalry Right 21.0s

BB common stock fell 4.49% during the final hour on October 7, 2026.

15:00 ET: $9.1824, the 5 minute bar close ending at 15:00.
Regular session close, 16:00 ET: $8.77, the official daily close.
Final hour change: 8.77 / 9.1824 − 1 = −4.49%.
Day’s high: $9.57 in the 09:34 ET 1 minute bar. The exact second is not available from these bars.

Claude Opus 5.5 web search only Partial 61.7s

On Oct 7, 2026, BB traded at about $9.18 at 15:00 ET and closed the regular session at $8.77. That's a drop of about 4.5% in the final hour. Its high of the day was $9.57, printed in the first five minutes after the open (9:30–9:35 ET).

Metric	Value
Price at 15:00 ET	≈ $9.18 (open of the 15:00 five-minute bar; the 14:55 bar closed at $9.182)
Regular-session close	$8.77
Change, 15:00 → close	−$0.41 (≈ −4.47%)
High of day	$9.57, 9:30–9:35 ET
Day's open / low	$9.34 / $8.73
Volume	~19.35M

The high came at the open. The first bar reached $9.57. The 9:35 bar came within a fraction of a cent of that ($9.5699) and then the price fell back to about $9.31. From there it stayed between about $9.20 and $9.35 until mid-afternoon.
The selling started around 14:50. The price slipped from $9.26 to $9.18 by 15:00. It then fell steadily, below $9.00 by about 15:25, and hit the day's low of $8.73 in the 15:55 bar before closing at $8.77.
Data note: the intraday figures come from Yahoo Finance's 5-minute chart data. The daily open, high, low, close and volume come from StockAnalysis, and the close and high match in both sources. The "15:00 price" here is the first trade of the 15:00 bar. A different vendor might show a slightly different figure, around $9.18 either way.

Sources:

Claude Opus 5.5 with Cavalry Right 26.1s

BB common stock fell 4.49% in the final hour on Oct 7, 2026, from $9.18 at 15:00 ET to an official close of $8.77. The high of the day was $9.57, hit in the 09:34 ET 1 minute bar, just after the open.

Item	Value	Time (ET)
Price at 15:00	9.1824	5 minute bar closing 15:00
Regular session close	8.77	16:00, official settled close
Final hour change	−4.49%	15:00 to 16:00
High of day	9.57	1 minute bar 09:34 to 09:35
Low of day	8.73	5 minute bar 15:55 to 16:00

The math: 8.77 / 9.1824 − 1 = −4.49%, a drop of $0.4124. In that hour the price got no higher than $9.195 and closed at its low.
How the fade unfolded: From about 10:00 on, BB traded quietly between $9.20 and $9.35. It started slipping after 14:50, broke below $9.00 by 15:20 and dropped hard in the last 10 minutes. The final 5 minute bar alone traded about 2.83 million shares. The official volume for the whole day was 19,632,600 shares.
The high came first: After opening at $9.34, BB ran to $9.57 within its first five minutes. It never got back there, so the day was a steady move down from the open that sped up at the close.

Question 9Intraday

Oklo (OKLO) on Oct 6, 2026: opening gap vs the Oct 5 close, % move from the 9:30 open to 10:30 ET, the time of the session high, and the move from the 15:00 ET price to the close.

Correct answer

OKLO opening gap vs prior close: +3.89%
OKLO move from open to 10:30: +4.11%
Time of OKLO high: 13:58 ET
OKLO move from 15:00 to close: −1.15%

GPT 6.1 web search only Wrong 41.9s

The daily records agree: OKLO opened at $37.37 versus the prior close of $35.97, a 3.89% gap up. They also show a $39.30 session high and $38.55 close. I’m checking for timestamped intraday data to verify the remaining figures.

For OKLO on Oct. 6, 2026, regular session, all times ET:

Requested measure	Verified result
Opening gap vs. Oct. 5 close	+$1.40 (+3.89%): $35.97 → $37.37
9:30 open → 10:30 move	Could not verify the 10:30 price
Time of session high	High was $39.30; timestamp could not be verified
15:00 → close move	Close was $38.55; could not verify the 15:00 price

The daily prices are confirmed by Stock Analysis and ChartExchange. I couldn’t access timestamped intraday data needed to calculate the remaining moves reliably.

GPT 6.1 with Cavalry Right 23.6s

OKLO common stock, October 6, 2026. All times ET.

Opening gap: +3.89%, or +$1.40. The 09:30 open was $37.37 versus October 5’s official 16:00 close of $35.97, using daily bars.

09:30 to 10:30: +4.11%. From the $37.37 open to $38.905 at the 10:30 five minute close.

Session high: 13:58 to 13:59. The one minute bar reached $39.2999, rounding to the official daily high of $39.30. The exact trade time within that minute is unavailable.

15:00 to close: −1.22%, or −$0.475. From $39.025 at the 15:00 five minute close to the official daily close of $38.55 at 16:00.

Claude Opus 5.5 web search only Partial 79.8s

On Oct 6, 2026 (a Tuesday), OKLO gapped up 3.9% at the open, gained another 4.1% by 10:30, hit its session high at about 13:55 ET, and fell 1.2% from 15:00 to the close.

Metric	Value
Opening gap	Oct 5 close $35.97 → Oct 6 open $37.37: +$1.40 (+3.89%)
9:30 → 10:30 ET	$37.37 → $38.91: +$1.54 (+4.12%)
Session high	$39.30, in the 13:55–14:00 ET 5-minute bar
15:00 ET → close	$39.03 → $38.55: −$0.48 (−1.23%)

Other figures for the day: low $37.00 (in the first 5 minutes), volume about 16.7M shares, and a full-day gain of about +7.2% from the Oct 5 close.

How I got these numbers:

Data source: Yahoo Finance's chart data, 5-minute bars for intraday prices and daily bars for the open and close. A small model read the raw data for me, so these are its two-decimal readings, not my own parse. Before using them for anything precise, check them against a broker's chart.
10:30 price: I used the close of the 10:25 bar. The open of the 10:30 bar was $38.89, which gives +4.07%.
15:00 price: I used the close of the 14:55 bar. The open of the 15:00 bar was the same.
Close: I used the official daily close of $38.55. The last 5-minute bar closed at $38.58, which gives −1.17% instead. The small difference is probably the closing auction.
Session high: The 5-minute bars only narrow the timing to that 13:55–14:00 window. The $39.30 matches the daily bar's high.

Sources:

Claude Opus 5.5 with Cavalry Partial 15.6s

Oklo common stock (OKLO) gapped up 3.89% on Oct 6, 2026 and gained 4.11% from the open to 10:30 ET. It made its session high near 14:00 ET, then lost 1.22% from 15:00 ET to the close.

Measure	Calculation	Result
Opening gap	37.37 open / 35.97 Oct 5 close − 1	+3.89%
9:30 open to 10:30	38.905 (10:25 to 10:30 5 min bar close) / 37.37 − 1	+4.11%
Session high	39.30 (39.2999 high in the 13:55 to 14:00 5 min bar)	about 13:55 ET
15:00 to close	38.55 close / 39.025 (14:55 to 15:00 5 min bar close) − 1	−1.22%

The open: The first 5 minutes ran from 37.37 to a high of 39.00. Then the stock slipped back to the 37.90s before climbing again.
Midday: It pushed to 39.27 between 13:25 and 13:30, then reached the high of the day around 13:55.
Late in the day: It faded through the last hour. The final 5 minute bar closed at 38.575, and the official close was 38.55. For the whole day it rose 7.17% (38.55 / 35.97 − 1) on 16.75M shares, about twice Oct 5's 7.66M.

The opening and closing prices are official settled daily figures. Intraday prices come from 5 minute regular hours bars.

Question 10Intraday

Compass (COMP) gapped down on Oct 8, 2026 and reversed. Give the gap vs the Oct 7 close, the time it filled the gap (first trade above the Oct 7 close), its % change from the open to 10:30 ET, and the session high and its time.

Correct answer

COMP opening gap vs prior close: −1.96%
Time COMP first traded back through the prior close (gap fill): 09:42 ET
COMP move from open to 10:30: +3.38%
COMP regular session high: $9.56
Time of COMP high: 15:59 ET

GPT 6.1 web search only Wrong 48.7s

The daily data shows a $9.19 October 7 close, a $9.01 October 8 open, and a $9.56 session high. That makes the opening gap −1.96%. I’m checking for intraday data to verify the two timestamps and the price at 10:30 ET.

COMP opened October 8 at $9.01, versus the October 7 close of $9.19: a gap of −$0.18 (−1.96%). The session high was $9.56. ChartExchange historical data

I couldn’t retrieve intraday trade data to verify the first trade above $9.19, the open-to-10:30 ET percentage change, or the time of the $9.56 high. Daily prices alone don’t establish those details.

GPT 6.1 with Cavalry Right 17.9s

COMP common stock, Oct 8, 2026, all times ET:

Measure	Result
Opening gap	−$0.18, −1.96%
Gap filled	During 09:42 minute
Open to 10:30	+3.39%
Session high	$9.56 during 15:59 minute

The 09:30 opening 1 minute bar opened at $9.01, versus $9.19 at the Oct 7 daily close, 16:00. The 09:42 bar first traded above that close, reaching $9.21. At 10:30, the completed 5 minute bar closed at $9.315.

Gap fill and session high times have 1 minute precision, not exact trade timestamps.

Claude Opus 5.5 web search only Right 72.7s

On Oct 8, 2026 Compass opened at $9.01, about 2% below the Oct 7 close of $9.19. It filled that gap at 9:42 ET, was up about 3.4% from the open by 10:30, and hit its session high of $9.56 at 3:59 PM ET.

Item	Value
Oct 7 close	$9.19
Oct 8 open	$9.01
Gap	−$0.18 (−1.96%)
Gap filled (first trade above $9.19)	9:42 ET. That minute's bar ran from $9.16 to $9.21 and closed at $9.20.
Open → 10:30 ET	About +3.4%: $9.01 → $9.315 (close of the 10:29 bar; the 10:30 bar opened at $9.31). Using the 10:30 bar's close of $9.325, it's +3.5%.
Session high	$9.56 at 3:59 PM ET, in the last minute of regular trading. No other bar reached it.
Oct 8 close	$9.52 (+3.6% on the day)

Source of the times and prices: they come from Yahoo's 1-minute bars, read through a tool that summarizes data rather than showing all of it. I didn't see the full 391-bar set myself, so treat the exact minutes as very likely but not checked line by line.
Gap-fill time: this is the start of the first 1-minute bar with a high above $9.19. The exact second of that trade isn't available.
Daily figures: the open, high and close match StockAnalysis's daily history ($9.01 / $9.56 / $9.52).
Data oddities: Yahoo shows zero volume on the 9:30 opening bar. Its "previous close" field reads $9.39, which is actually Oct 9's close, so I took the Oct 7 close ($9.19) from the daily history instead.

Sources:

Claude Opus 5.5 with Cavalry Right 17.2s

COMP opened at 9.01 on Oct 8, 2026, 1.96% below its Oct 7 close. It traded above that close at 09:42 ET, was up 3.39% from the open at 10:30 ET, and hit its session high of 9.56 in the last minute of the day.

Item	Value	Time (ET)
Oct 7 official close	9.19	16:00 Oct 7
Oct 8 official open	9.01	09:30
Gap	−0.18 (−1.96%)	09:30
Gap filled (first trade above 9.19)	9.21	09:42
Price at 10:30	9.315	10:30
Open to 10:30 change	+3.39%	10:30
Session high	9.56	15:59

Gap: 9.01 / 9.19 − 1 = −1.96%, using the official daily bars.
Gap fill: in the 1 minute bars, the 09:42 bar was the first with a high above 9.19. It reached 9.21 and closed at 9.20. Every bar before it stayed at or below 9.18.
Open to 10:30: the 10:29 bar closed at 9.315, so 9.315 / 9.01 − 1 = +3.39%.
Session high: 9.56, which matches the official high. It printed in the 15:59 bar. The day's earlier peak was 9.54, around 14:47 and again at 15:00.
Rest of the day: the open was also the day's low (official low 9.01), so it never traded below the opening print. It closed officially at 9.52, up 3.59% on Oct 7. Volume was 15.87 million shares.

Question 11Intraday

AMD gapped up on Oct 6, 2026. What was the gap vs the Oct 5 close, when (ET) did it first trade back below the Oct 5 close, what were the session low and its time, and the time of the session high?

Correct answer

AMD opening gap vs prior close: +2.58%
Time AMD first traded back through the prior close (gap fill): 09:34 ET
AMD regular session low: $628.00
Time of AMD low: 09:36 ET
Time of AMD high: 11:11 ET

GPT 6.1 web search only Wrong 55.4s

AMD opened at $648.04 versus the October 5 close of $631.75, a gap of $16.29 (2.58%). The daily data confirms a $628.00 low and $658.52 high; I’m still checking the intraday timestamps.

For NASDAQ:AMD’s regular session on October 6, 2026:

Item	Verified result
Gap versus October 5 close	+$16.29 (+2.58%): $648.04 open versus $631.75 prior close
First trade below $631.75	Exact ET time could not be verified
Session low	$628.00; exact ET time could not be verified
Session high	$658.52; reached by 11:10 a.m. ET, but the exact minute could not be verified

The prices are confirmed by AMD’s historical data. The “by 11:10” timing comes from Oyamori’s intraday account. I couldn’t retrieve minute-level data to establish the requested exact timestamps.

GPT 6.1 with Cavalry Right 20.6s

AMD common stock, Oct 6, 2026 regular session, using 1 minute bars:

Opening gap: +$16.29 (+2.58%). The 09:30 ET open was $648.04 versus the Oct 5 official daily close of $631.75 at 16:00 ET.
First trade below that close: during 09:34 to 09:35 ET, when the bar low reached $630.66.
Session low: $628.00 during 09:36 to 09:37 ET.
Session high: $658.52 during 11:11 to 11:12 ET.

These identify the minute containing each event, not the exact trade second.

Claude Opus 5.5 web search only Right 76.9s

On Oct 6, 2026, AMD opened about 2.6% above the Oct 5 close, fell back below that close within four minutes and bottomed at 9:36 ET. It then climbed to its session high at 11:11 ET.


Oct 5 close	$631.75
Oct 6 open	$648.04
Gap	+$16.29 (+2.58%)
First trade below $631.75	9:34 ET. That minute's low was $630.66, and every earlier minute's low stayed above $631.75.
Session low	$628.00 at 9:36 ET
Session high	$658.52 at 11:11 ET. The same price printed again at 11:12 ET.

The stock closed the day at $649.42 (+2.8%), which was a record closing high. The day's range in the daily bar matches the minute-by-minute data: low $628.00 and high $658.52.

All prices come from Yahoo Finance's 1-minute bars for the regular session, so the times are only exact to the minute. The first sub-$631.75 trade happened somewhere inside the 9:34 minute.

Sources:

Claude Opus 5.5 with Cavalry Right 17.3s

AMD gapped up 2.58% on Oct 6, 2026. It first traded back below the Oct 5 close in the 09:34 ET 1 minute bar, made its session low of $628.00 at 09:36 ET, and made its session high of $658.52 at 11:11 ET. All prices are for AMD common stock, regular hours.

Gap: the Oct 6 official open was $648.04 and the Oct 5 official close was $631.75. That is $16.29 higher, and 648.04 / 631.75 − 1 = +2.58%.
First trade below the Oct 5 close: the 09:34 to 09:35 ET 1 minute bar, with a low of $630.66. All four 1 minute bars before it held above $631.75; the lowest of them was $632.55 at 09:33. The gap was filled about 4 minutes after the open.
Session low: $628.00, in the 09:36 ET 1 minute bar. The official daily low is also $628.00.
Session high: $658.52, in the 11:11 ET 1 minute bar. The official daily high is also $658.52.

After the 09:36 low, AMD climbed $30.52 into the 11:11 high. It closed at $649.42, up 2.80% on the day.

Question 12Intraday

Opendoor (OPEN) on Oct 7, 2026: what were its 15 minute opening range high and low, when did it first break above that range, when did it fill its opening gap (first trade back above the Oct 6 close), and what was the time of the session high?

Correct answer

OPEN 15 minute opening range high: $2.2150
OPEN 15 minute opening range low: $2.1300
First time OPEN traded above the 15 minute range high: 11:57 ET
Time OPEN first traded back through the prior close (gap fill): 13:56 ET
Time of OPEN high: 15:18 ET

GPT 6.1 web search only Wrong 42.1s

The daily data confirms an October 6 close of $2.27 and an October 7 session high of $2.30. I’m still looking for minute-level data to verify the opening range and timestamps.

I couldn’t verify the intraday figures from the accessible sources. The daily price history confirms:

Item	Verified value
October 6 close—the gap-fill threshold	$2.27
October 7 open	$2.21
October 7 session high	$2.30

The 15-minute opening-range high/low, first break above that range, first trade strictly above $2.27, and time of the $2.30 session high require intraday data that I couldn’t retrieve. I can’t reliably infer those from daily OHLC data.

GPT 6.1 with Cavalry Right 22.6s

OPEN common stock, Oct 7, 2026, all times ET:

Event	Price	Time
15 minute opening range high	$2.215	09:30
15 minute opening range low	$2.13	09:40, repeated 09:41
First trade above the range	Above $2.215	11:57
Opening gap filled	Above $2.27	13:56
Session high	$2.30	15:18

The opening range covers 09:30 to 09:45, excluding the 09:45 bar. The gap reference is the Oct 6 official daily close of $2.27 at 16:00 ET.

Times identify the 1 minute bar containing the trade, not its exact second. Breakout and gap fill use trades above the level, not closing prices.

Claude Opus 5.5 web search only Right 162.3s

Still pulling minute bars from Yahoo. I have the opening range, gap fill and session high, and I'm now finding the first breakout above the range.

I've worked out all four answers for Opendoor (OPEN) on Wed Oct 7, 2026. They come from Yahoo Finance 1-minute bars, and all times are ET.

Context: OPEN closed at $2.27 on Oct 6 and opened Oct 7 at $2.21, a gap down of about 2.6%. It closed the day at $2.27.

Item	Answer
15-min opening range (9:30–9:44)	High $2.215, set in the 9:30 bar. Low $2.13, set in the 9:40 and 9:41 bars.
First break above the range	11:57 (high $2.2185). The price came back to exactly $2.215 at 10:35 but didn't go past it. The move above the range continued to $2.23 around 12:00.
Gap fill	It first traded back up to the $2.27 prior close at 13:43. Its first trade above $2.27 came at 13:56 (high $2.28).
Session high	$2.30 at 15:18. The 15:19 bar reached $2.2999. This matches the daily high.

Things to keep in mind:

I set the opening range as the first 15 one-minute bars, 9:30 through 9:44. Yahoo's data uses consolidated prints, so a broker feed might differ by a cent, or by a minute on the borderline cases (the 10:35 touch and the 13:43 touch).
The data was pulled in 30–60 minute chunks. I checked 12:25–13:30 only from a summary. That stretch topped out around $2.23, so it doesn't affect any of the answers above.

Sources:

Claude Opus 5.5 with Cavalry Partial 19.6s

On Oct 7, 2026, OPEN's 15 minute opening range was 2.215 high and 2.13 low. It first traded above that range in the 11:55 ET 5 minute bar and first traded above the Oct 6 close in the 13:55 ET bar. The session high of 2.30 came in the 15:15 ET bar. All prices are OPEN common stock on regular hours 5 minute bars.

Item	Price	Time (ET)
Opening range high (09:30 to 09:45)	2.215	09:30 bar
Opening range low	2.13	09:40 bar
First break above the range	2.225 high, 2.22 close	11:55 bar
Gap fill: first trade above the 2.27 Oct 6 close	2.28 high	13:55 bar
Session high	2.30	15:15 bar

The opening gap: The stock opened at 2.21, below the 2.27 Oct 6 official close. That is a gap down of 2.21 / 2.27 − 1 = −2.64%.
The opening range: The 2.13 low was also the low of the whole session. At 10:35 the price reached 2.215 again but did not go past it.
The break above the range: The 11:55 to 12:00 bar was the first to trade above 2.215, and it also closed above it at 2.22.
The gap fill: The 13:40 bar reached exactly 2.27 and closed at 2.265, on about 1.76M shares in that bar. The next trade above 2.27 was in the 13:55 bar, which reached 2.28.
The session high: The 15:15 to 15:20 bar is the only bar that reached 2.30. That matches the official daily high.
The close: OPEN closed at 2.27, the same as Oct 6, on 35.74M shares (official volume).

Each time above is the start of a 5 minute bar. The exact minute inside that bar isn't held for this date.

Question 13Intraday

CoreWeave (CRWV) on Oct 8, 2026: what was the session high and the time it printed, the first time it traded below its 15 minute opening range low (9:30 to 9:45 ET), and the session low and its time?

Correct answer

CRWV regular session high: $86.85
Time of CRWV high: 09:30 ET
First time CRWV traded below the 15 minute range low: 09:52 ET
CRWV regular session low: $80.63
Time of CRWV low: 12:53 ET

GPT 6.1 web search only Wrong 42.4s

The daily records agree on a high of $86.85 and a low of $80.63. I haven’t found accessible intraday data yet to verify their times or the opening-range break.

For CRWV’s regular session on October 8, 2026:

Event	Price	Time (ET)
Session high	$86.85	Unverified
First trade below the 9:30–9:45 opening-range low	Unverified	Unverified
Session low	$80.63	Unverified

The high and low are confirmed by daily historical records. I couldn’t access intraday data to establish the timestamps or opening-range low reliably. A one-minute data export would establish the relevant minutes; exact print times require trade-level data.

GPT 6.1 with Cavalry Right 19.8s

CRWV common stock, October 8, 2026, regular session, using 1 minute bars:

Event	Price	Time ET
Session high	$86.85	09:30
First trade below opening range low	$84.67	09:52
Session low	$80.63	12:53

The 09:30 to 09:45 opening range low was $84.70, reached in the 09:40 bar. The 09:52 bar first traded below it.

Times identify the minute containing the trade, not its exact second; $84.67 is that minute’s low, not necessarily the first crossing price.

Claude Opus 5.5 web search only Right 96.5s

Here's what Yahoo Finance's 1-minute bars show for CRWV on Oct 8, 2026 (regular session, ET):

	Price	Time (ET)
Session high	$86.85	9:30 (the opening bar)
Opening range, 9:30–9:45	High $86.85 / Low $84.70	Low printed in the 9:40 bar
First trade below the opening-range low	$84.67	9:52 bar
Session low	$80.63	12:53 bar

How the day went:

It opened at $86.85, which was the high of the day. That was a gap down from the Oct 7 close of about $88.45. Prices never got back above the 9:30 bar.
It broke below the $84.70 opening-range low at 9:52 and kept sliding through the morning, mostly in the $83.8–84.5 range.
Around 12:42 ET it dropped sharply, from about $84.20 to $80.63 in roughly 11 minutes. That was the low of the day.
It bounced to about $82.9 around 2:15 PM, fell back to about $80.82 at 3:12 PM without making a new low, and closed near $81.57.

Caveats:

These are 1-minute bars, so each time is the start of the minute the price printed in. Exact tick times, and highs and lows in other consolidated data feeds, could differ by a few cents.
The 9:30 bar shows zero volume, so the $86.85 high is likely the opening auction print. If you leave it out, the highest price in continuous trading was $85.95 in the 9:35 bar.
A summarizing tool read the bars from Yahoo's chart data for me. The numbers are internally consistent, but this isn't an official exchange record.
CNBC tied the selloff to a report on OpenAI's revenue that hit AI stocks that day.

Sources:

Claude Opus 5.5 with Cavalry Right 15.5s

CRWV (CoreWeave common stock) hit its high of $86.85 in the first minute of trading on Thursday, Oct 8, 2026. It first broke below its 15 minute opening range low at 09:52 ET and made its low of $80.63 at 12:53 ET. All times below are from 1 minute regular session bars.

Event	Price	Time (ET)
Session high	86.85	09:30 bar
Opening range high	86.85	09:30 bar
Opening range low	84.70	09:40 bar
First trade below the range low	84.67	09:52 bar
Session low	80.63	12:53 bar

High: the high came at the open and the stock never got back to it. The official settled daily bar has the same high, $86.85.
Opening range (09:30 to 09:45): high $86.85, low $84.70. The low printed in the 09:40 bar.
First break below $84.70: the 09:45 to 09:51 bars held above it, with the lowest at $84.80 at 09:45. The 09:52 bar traded down to $84.67 and closed at $84.705, barely above the level. The stock then kept sliding and was near $84.06 by 09:54.
Low: the big leg down started around 12:43. Price fell from about $84.20 to $80.63 in the 12:53 bar, on heavy volume. The settled daily low is also $80.63. A second drop in the afternoon bottomed at $80.82 at 14:52, so the midday low held. The stock closed at $81.58, down from its $86.81 open.

Question 14Intraday

D Wave Quantum (QBTS) on Oct 8, 2026: what was the first time it broke below its 15 minute opening range low (9:30 to 9:45 ET), the session low and when it printed, and the % move from the 15:00 ET price to the close?

Correct answer

First time QBTS traded below the 15 minute range low: 09:54 ET
QBTS regular session low: $14.30
Time of QBTS low: 13:27 ET
QBTS move from 15:00 to close: +1.53%

GPT 6.1 web search only Partial 63.0s

The daily data shows a $14.30 low and $14.60 close, and Market Chameleon reports a +1.68% move from 15:00 to 16:00 ET. I’m still looking for minute-level data to verify the opening-range break and when the low printed.

For QBTS on October 8, 2026:

Requested metric	Verified result
First break below the 9:30–9:45 ET opening-range low	Couldn’t verify the time from accessible intraday data.
Regular-session low and time	$14.30; the print time remains unverified. Daily price history
Move from 15:00 ET to close	+1.68%, as reported in Market Chameleon’s 3–4 p.m. column. Hourly returns

The closing price was $14.60. Minute or tick data is needed to establish the two timestamps reliably.

GPT 6.1 with Cavalry Right 18.4s

QBTS common stock, October 8, 2026, all times ET:

First break: 09:54. The 09:30 to 09:45 opening range low was $14.79, reached in the 09:40 one minute bar. The 09:54 one minute bar first traded below it, reaching $14.78.
Session low: $14.30, printed in the 13:27 one minute bar.
15:00 to close: +1.57%. From $14.375 at the 15:00 five minute close to the $14.60 official daily close at 16:00: (14.60 / 14.375 − 1) × 100 = 1.57%.

One minute bars identify the minute, not the exact second.

Claude Opus 5.5 web search only Right 123.7s

For QBTS on Oct 8, 2026, the first break below the opening-range low came at 9:54 ET, the session low was $14.30 at 13:27 ET, and the stock gained about 1.67% from 15:00 ET to the close. These figures come from Yahoo Finance 1-minute bars for the regular session, with times in ET.

	Value
Open (9:30 bar)	$14.98
Opening-range high (9:30–9:45)	$15.14 (9:31)
Opening-range low (9:30–9:45)	$14.79 (9:40 bar)
First break below the opening-range low	9:54 ET, bar low $14.78 (closed at $14.79)
Session low	$14.30 at 13:27 ET (the 13:27–13:28 bar)
15:00 ET price (close of the 15:00 bar)	$14.355
Close (close of the 15:59 bar)	$14.595
15:00 → close	+$0.24, about +1.67%

The break was shallow. At 9:54 the price went only one cent below the opening-range low.
The 14.30–14.31 area held all afternoon. The price tested it at 12:44 ($14.31), at 13:27 ($14.30) and at 13:50 ($14.31). It came back near $14.34 around 14:53 and again just after 15:00, then rallied into the close.
The 15:00 figure depends on which price you use. Measured from the open of the 15:00 bar ($14.37), the move is about +1.57%. Measured from the 14:59 close ($14.375), it is about +1.53%.
The close may differ slightly from the official one. I used the last 1-minute bar's close. Yahoo's 1-minute data doesn't include the official closing-auction print, so the official close could be a little different. I didn't check it.

Sources:

Yahoo Finance chart API, QBTS 1-minute bars, Oct 8 2026 session

Claude Opus 5.5 with Cavalry Right 16.1s

On Oct 8, 2026, QBTS (D-Wave Quantum common stock) first broke below its 15 minute opening range low at 09:54 ET. It hit its session low of 14.30 at 13:27 ET. From 15:00 ET to the close it gained +1.57%.

Opening range, 09:30 to 09:45 ET (1 minute bars)

The range ran from 14.79 to 15.14. The 14.79 low printed in the 09:40 bar.
First break: the 09:54 ET bar traded down to 14.78 and closed at 14.7899, just under the range low. Every bar from 09:45 to 09:53 had held above 14.79.

Session low

14.30, in the 13:27 ET 1 minute bar. This matches the official settled daily low of 14.30.
The day's high was 15.15 and the open was 14.98.

15:00 ET to the close

Price at 15:00 ET: 14.375, the close of the 14:59 bar.
Official close: 14.60 (settled). The final 15:59 bar closed at 14.595.
Change: 14.60 / 14.375 − 1 = +1.57%.
The stock picked up in the last half hour and closed on heavy volume. Even so, it finished below its 14.98 open.

Question 15Intraday

SPY on Oct 8, 2026: what were the regular session high and low and the times they printed, what was the maximum intraday drawdown (from a running high to a subsequent low) and when was the trough?

Correct answer

SPY regular session high: $777.09
Time of SPY high: 12:17 ET
SPY regular session low: $770.43
Time of SPY low: 13:28 ET
SPY max intraday drawdown (running high to subsequent low): −0.86%
Time of the trough: 13:28 ET

GPT 6.1 web search only Partial 29.8s

SPY’s October 8, 2026 daily data reports a high of $777.09 and low of $770.44. Historical data

I couldn’t retrieve timestamped intraday data, so I can’t verify the times those prices printed, the maximum running-high-to-subsequent-low drawdown, or its trough time.

The high–low range was $6.65 (0.8558% of the high). That equals the maximum drawdown only if the high occurred before the low; daily OHLC alone doesn’t establish that sequence.

GPT 6.1 with Cavalry Right 22.0s

SPY ETF, October 8, 2026, regular session 09:30 to 16:00 ET, using 1 minute bars:

Measure	Value	Time ET
Session high	$777.09	12:17
Session low	$770.435	13:28
Maximum drawdown	$6.655, or 0.8564%	Trough 13:28

The maximum drawdown ran from the 12:17 high to the subsequent 13:28 low: (777.09 − 770.435) / 777.09 = 0.8564%.

Times identify the minute containing each print, not the exact second. Prices are split adjusted.

Claude Opus 5.5 web search only Right 54.6s

I worked these out from Yahoo Finance 1-minute bars for SPY's regular session on Thu, Oct 8, 2026 (9:30–16:00 ET).

	Price	Time (ET)
Session high	$777.09	12:17 (1-min bar)
Session low	$770.435	13:28 (1-min bar)

Maximum intraday drawdown: the largest drop from a running high to a later low was from the day's high to the day's low.

Peak: $777.09 at 12:17 ET
Trough: $770.435 at 13:28 ET
Drawdown: −$6.655, or about −0.86%, over about 71 minutes

The high came before the low, so no other peak-to-trough pair can be larger.

How the day went: SPY opened near $774.50 and rose slowly to about $776.55 by around 10:35. It then eased back to about $774.2 through late morning. At 12:17 it spiked to $777.09 within a single minute and gave the gain back right away. The main selloff began around 13:00 and bottomed at 13:28. Price then recovered to about $773.5–774 and stayed in that range until the close (last bar high about $774.08).

Things to check before you rely on these numbers:

Possible bad print: in the 12:17 bar, price went from $774.71 to $777.09 and fell back to about $775.4 in the next few minutes. That looks like it could be a single outlier trade. If it's filtered out, the session high would be about $776.55 at about 10:29–10:35 ET, and the drawdown to $770.435 would be about −$6.12 (−0.79%).
Data handling: the figures come from bar highs and lows, so times are only accurate to the minute. My fetch tool also had a small model copy the raw numbers from the page, so a transcription error is possible. If you have consolidated-tape or broker data, check the 12:17 and 13:28 prints against it.

Source: Yahoo Finance chart API, SPY 1-minute bars

Claude Opus 5.5 with Cavalry Right 17.1s

SPY's regular session high on Oct 8, 2026 was 777.09 at 12:17 ET, and the low was 770.435 at 13:28 ET. The largest drawdown of the day ran between those two points: −6.655, or −0.86%, with the trough at 13:28 ET.

Measure	Value	Time (ET)
Session high	777.09	12:17
Session low	770.435	13:28
Max drawdown	−6.655 (−0.86%)	12:17 to 13:28

The high was a brief spike. The 12:17 one minute bar opened at 774.76, jumped to 777.09 and closed at 776.32. Its volume was about 919K shares, against roughly 20K to 40K for the bars around it. By 12:19 price had dropped back to 775.42.
The drawdown. The running high of 777.09 fell to 770.435 by 13:28. That is 777.09 − 770.435 = 6.655, and 6.655 / 777.09 = 0.86%. Most of the drop came in a steady selloff starting about 12:51. No later low went below 770.435, and no earlier peak had a bigger fall after it. So this was the largest peak to trough decline of the session.
Rest of the day. SPY opened at 774.86 and recovered to an official close of 773.93. The settled official daily high and low (777.09 and 770.44) match the one minute bars, with the low rounded to the cent.

Question 16Intraday

NVIDIA (NVDA) on Oct 8, 2026: what were the high and low of the first 30 minutes (9:30 to 10:00 ET), the session low, the % change from the 10:00 ET price to the close, and NVDA's session VWAP? Did it close above or below VWAP?

Correct answer

NVDA 30 minute opening range high: $235.20
NVDA 30 minute opening range low: $233.71
NVDA regular session low: $229.85
NVDA move from 10:00 to close: −1.47%
NVDA session VWAP (typical price, regular session): $232.84
Close vs VWAP: below

GPT 6.1 web search only Partial 51.2s

The daily sources agree on a $229.85 session low and a $230.48 close. I also found a reported VWAP of $232.47, but still need intraday data to verify the opening range and the 10:00-to-close change.

For NVDA on October 8, 2026, the available sources report:

Metric	Value
First 30 minutes high, 9:30–10:00 ET	$235.20
First 30 minutes low	$233.71
Regular-session low	$229.85
Closing price	$230.48
Reported session VWAP	$232.47
Close versus reported VWAP	Below by $1.99
Change from 10:00 ET to close	Unable to verify

The opening range comes from LocalKin’s October 8 snapshot, using Yahoo five-minute bars. The session low and close agree with Stock Analysis. VWAP is reported by Almurakib, but I couldn’t independently verify its session boundaries or calculation.

I couldn’t retrieve a reliable 10:00 ET price, so I can’t give a defensible percentage change for that interval.

GPT 6.1 with Cavalry Right 18.5s

NVDA common stock closed below session VWAP on October 8, 2026. All times ET.

Metric	Value	Window or basis
First 30 minutes high	$235.20	09:30 to 10:00, 5 minute bars
First 30 minutes low	$233.71	09:30 to 10:00, 5 minute bars
Session low	$229.85	09:30 to 16:00, daily bar
10:00 price	$234.02	5 minute close ending 10:00
Session close	$230.48	16:00, official daily bar
Change from 10:00 to close	−1.51%	10:00 to 16:00
Session VWAP	$232.957679	At 16:00, 5 minute bars

Change: 230.48 / 234.02 − 1 = −1.51%.

Claude Opus 5.5 web search only Wrong 34.5s

I could only find daily data for Oct 8, 2026, so I can answer two of your five questions. The first-30-minute high and low, the 10:00 ET price (and so the % change to the close) and the session VWAP all need minute-level data, which I couldn't find in any free source.

Daily figures for Oct 8, 2026 (Investing.com):

Open: $234.92
High: $237.07
Session low: $229.85
Close: $230.48, down 2.94% from the Oct 7 close of $237.47
Volume: about 118.7M shares, against 81.8M on Oct 7 and 84.7M on Oct 9

One site (TradingKey) gives the high as $239.08, but that matches Oct 7's high, so it's probably the wrong day. Heygotrade has the same open and close as Investing.com.

What I couldn't find:

9:30–10:00 high and low, and the 10:00 price: these need a 1-minute or 5-minute chart. The search results only had daily data.
Session VWAP: none of the sources show a VWAP for the Oct 8 regular session. Market Chameleon's VWAP pages only covered Oct 9 pre-market and after-hours.

Close vs. VWAP: probably below, but I haven't confirmed it. The stock closed just $0.63 above the day's low, near the bottom of a $7.22 range, on heavy volume. A sell-off like that usually ends below VWAP. As a rough stand-in, the average of the high, low and close is about $232.47, which is above the close. That isn't the real VWAP, though.

To get the exact numbers, pull Oct 8, 2026 1-minute bars from Alpaca, IBKR or TradingView with VWAP turned on. If you can get a CSV of 1-minute bars, I can calculate all five numbers from it.

Sources:

Claude Opus 5.5 with Cavalry Right 37.1s

NVDA common stock closed below its session VWAP on Thu Oct 8, 2026. It closed at $230.48, about $2.48 under the 232.96 VWAP, after falling sharply in the early afternoon.

Measure (Oct 8, 2026)	Value	Time (ET)
First 30 min high	235.20	09:30 5 min bar
First 30 min low	233.71	09:55 5 min bar
Session low	229.85	13:25 5 min bar
Price at 10:00	234.02	09:55 5 min bar close
Official close	230.48	16:00
Session VWAP	232.96	as of the 15:55 5 min bar

10:00 to close: 230.48 / 234.02 − 1 = −1.51%.
Close vs VWAP: 230.48 is 2.48 below 232.96, or about 1.07% under. I added up the 5 minute bars myself and got about 232.96 too, so the VWAP checks out.
How the day went: NVDA opened at 234.92, hit its session high of 237.07 around 10:30 to 10:45, then held around 235 to 236 until about 12:50. From there it slid to the 229.85 low at 13:25 and stayed around 230 to 231 into the close. All of the trading after 13:00 happened below VWAP.

The first 30 minutes cover the six 5 minute bars from 09:30 to 09:55, using regular hours only. Official consolidated volume for the day was 118.70M shares.

Question 17Intraday

Tesla (TSLA) on Oct 9, 2026: what was the price at 10:00 ET and at 12:00 ET, the time of the session high, and the time of the session low?

Correct answer

TSLA price at 10:00 ET: $385.23
TSLA price at 12:00 ET: $383.40
Time of TSLA high: 09:53 ET
Time of TSLA low: 11:35 ET

GPT 6.1 web search only Wrong 31.5s

I could verify TSLA’s October 9, 2026 session high of $388.56 and low of $379.71, but the accessible sources only provide daily data. Stock Analysis

Requested detail (ET)	Verified result
Price at 10:00 a.m.	Unavailable
Price at 12:00 noon	Unavailable
Time of session high	Unavailable
Time of session low	Unavailable

These four details require timestamped intraday data; I couldn’t retrieve it reliably and won’t guess.

GPT 6.1 with Cavalry Right 24.1s

TSLA common stock, October 9, 2026, regular session:

Observation	Time ET	Price
5 minute close	10:00	$385.23
5 minute close	12:00	$383.40
Session high, 1 minute bar	09:53	$388.56
Session low, 1 minute bar	11:35	$379.71

High and low times identify the minute containing the extreme, not the exact trade second.

Claude Opus 5.5 web search only Wrong 35.2s

I couldn't find any of the four numbers you asked for. None of the sources I checked publish the 10:00 or 12:00 ET prices for October 9, 2026, or the times of the session high and low. That needs minute-level data, and the free pages I could reach only show daily figures. I haven't estimated these values because a guess could be badly wrong.

What the sources do show for TSLA on Oct 9, 2026:

Open: $382.38
High: $388.56 (time not found)
Low: $379.71 (time not found)
Close: $382.70, up $7.70 (+2.05%) from the previous close of $375.00
Volume: about 38.9M shares
The only timed price: $383.71 at 2:33 p.m. ET (Nasdaq quote, reported by Ad Hoc News)

One source disagrees on the open. TradingKey says the stock "opened up 3.17%," but a $382.38 open is only about 2% above $375.00. The other sources agree with the $382.38 figure.

Where to get the exact numbers: pull 1-minute or 5-minute bars for 2026-10-09 from your broker (Thinkorswim, IBKR, Webull and others keep intraday history), TradingView, or a data API such as Alpaca. The 10:00 and 12:00 bars give you those prices, and the high and low bars give you their times.

Sources:

Claude Opus 5.5 with Cavalry Partial 18.0s

On Oct 9, 2026, TSLA was $385.23 at 10:00 ET and $383.40 at 12:00 ET. It made its session high of $388.56 in the 09:50 to 09:55 ET bar and its session low of $379.71 in the 11:35 to 11:40 ET bar.

	Price	Time (ET)
At 10:00	385.23	close of the 09:59 1 min bar
At 12:00	383.40	close of the 11:59 1 min bar
Session high	388.56	5 min bar from 09:50 to 09:55
Session low	379.71	5 min bar from 11:35 to 11:40

These are regular session figures, 09:30 to 16:00 ET.
The high and low come from 5 minute bars, so each time is a 5 minute window rather than an exact minute.
The 10:00 and 12:00 prices match the closes of the 5 minute bars ending at those times.
TSLA opened at $382.38 and rallied to the high within the first half hour. It then slid to the low just before midday and spent the afternoon between about $382.40 and $384.90. The last 5 minute bar closed at $382.71.

Question 18Intraday

Apple (AAPL) gapped down on Oct 9, 2026. Give the gap vs the Oct 8 close, the session low and the time it printed, the first time AAPL traded above its 15 minute opening range high, and the % change from the open to the close.

Correct answer

AAPL opening gap vs prior close: −2.54%
AAPL regular session low: $330.70
Time of AAPL low: 09:33 ET
First time AAPL traded above the 15 minute range high: 09:46 ET
AAPL move from open to close: +1.46%

GPT 6.1 web search only Partial 40.0s

AAPL’s October 9, 2026 regular-session figures were:

Metric	Result
Gap versus October 8 close	−$8.72 (−2.56%), from $340.42 to a $331.70 open
Session low	$330.70; time printed not verified
First trade above the 15-minute opening-range high	Not verified from available intraday data
Open-to-close change	+1.49%, from $331.70 to $336.64

Prices are supported by Yahoo Finance historical data; percentages are calculated from those prices. I couldn’t obtain timestamped intraday data to establish the low’s time or the first breakout above the 9:30–9:45 a.m. EDT opening-range high.

GPT 6.1 with Cavalry Right 32.0s

AAPL common stock, October 9, 2026. All times ET.

Opening gap: −$8.72, or −2.56%. Official daily bar open $331.70 at 09:30 versus October 8’s official daily close $340.42 at 16:00.
Session low: $330.70, in the 09:33 one minute bar.
First trade above the opening range high: during 09:46, when the one minute bar reached $333.80. The 09:30 to 09:45 opening range high was $333.569.
Open to close: +1.49%. Official daily bar close $336.64 at 16:00 versus $331.70 at 09:30.

Minute bars identify the minute, not the exact trade second. Their opening price is $331.79; gap and return calculations use the official daily open.

Claude Opus 5.5 web search only Right 57.1s

On Oct 9, 2026, AAPL gapped down about 2.6%, made its low of $330.70 at 9:33 ET, first traded above its 15-minute opening-range high at 9:46 ET, and closed about 1.5% above its open.

Metric	Value
Gap vs Oct 8 close	Opened at $331.70 against a $340.42 close: −$8.72 (−2.56%)
Session low	$330.70 at 9:33 ET (the 9:33–9:34 one-minute bar)
15-min opening-range high (9:30–9:45)	$333.57, set at 9:32 ET
First trade above the opening-range high	9:46 ET (that bar's high was $333.80)
Open to close	$331.70 to $336.64: +$4.94 (+1.49%)

The day's high was $338.61. The stock still finished down 1.11% from the prior close. The drop followed a Nikkei Asia report that Apple had cut iPhone 18 component orders.

How I got these numbers:

Open, close and low: These come from the daily data on StockAnalysis and Yahoo, and the two sources agree.
Intraday times: These come from Yahoo's one-minute chart data, which was summarized for me by a helper tool, so I didn't read the raw data myself. The first one-minute bar opens at $331.79 rather than the official $331.70 open, which is normal for consolidated one-minute data. The lowest one-minute low exactly matches the official daily low of $330.70, which supports the timing.
Opening range: I used the one-minute bars from 9:30 through 9:44 ET. If your opening range uses a single 15-minute candle or a different data feed, the high could differ by a few cents. The breakout time would probably stay about the same, since the next new high came at 9:46.

Sources:

Claude Opus 5.5 with Cavalry Right 18.0s

AAPL opened Oct 9, 2026 at 331.70, a gap down of 2.56% from the Oct 8 close of 340.42. The session low was 330.70, set in the 09:33 ET minute. AAPL first traded above its 15 minute opening range high at 09:46 ET. From open to close it gained 1.49%.

Item	Value	Time (ET)
Oct 8 official close	340.42	16:00 Oct 8
Oct 9 official open	331.70	09:30
Gap	−8.72 (−2.56%)	at the open
Session low	330.70	09:33 1 min bar
15 min opening range high (09:30 to 09:45)	333.569	09:32 1 min bar
First trade above that high	333.80 high	09:46 1 min bar
Oct 9 official close	336.64	16:00
Open to close	+1.49%

How these were worked out

Gap: 331.70 / 340.42 − 1 = −2.56%. Both prices are the official daily open and close.
Low: The official low for the day is also 330.70, and it printed only three minutes after the open.
Opening range: The 1 minute bars for the first 15 minutes topped out at 333.569. The 09:45 bar peaked at 333.34, still below it. The 09:46 bar reached 333.80 and closed at 333.675, which is when it first traded above.
Open to close: 336.64 / 331.70 − 1 = +1.49%. The stock rallied most of the day to a session high of 338.61 in the 15:00 minute, then gave some of it back into the close.

The first 1 minute bar opens at 331.79, a little different from the official open of 331.70. The gap and open to close figures use the official prices.

Question 19Intraday

BitMine (BMNR) on Oct 8, 2026: what were its 15 minute opening range high and low (9:30 to 9:45 ET), when did it first trade above that range and when did it first trade below it, and at what times did it print its session high and low?

Correct answer

BMNR 15 minute opening range high: $24.30
BMNR 15 minute opening range low: $23.77
First time BMNR traded above the 15 minute range high: 10:56 ET
First time BMNR traded below the 15 minute range low: 11:30 ET
Time of BMNR high: 10:59 ET
Time of BMNR low: 13:05 ET

GPT 6.1 web search only Wrong 47.7s

The daily records agree on a $24.45 session high and $23.25 session low. I’m still looking for intraday bars to verify the opening range and the times; daily records don’t provide those.

I could verify BMNR’s October 8, 2026 session high of $24.45 and low of $23.25, but couldn’t retrieve intraday data to establish their times. ChartExchange daily record

The 9:30–9:45 ET opening-range high and low, first trades above and below that range, and session-extreme timestamps remain unverified. Daily OHLC data cannot establish those; answering reliably requires minute bars or time-and-sales data for that session.

GPT 6.1 with Cavalry Right 20.6s

BMNR common stock, October 8, 2026: the 15 minute opening range was $24.30 high and $23.7729 low.

All times below are ET, based on 1 minute bars.

Event	Price	Bar start
Opening range high	$24.30	09:31
Opening range low	$23.7729	09:43
First trade above range	$24.33 bar high	10:56
First trade below range	$23.76 bar low	11:30
Regular session high	$24.45	10:59
Regular session low	$23.25	13:05

The opening range includes 09:30 through 09:44, excluding the 09:45 bar. Breaks mean strictly above or below the range, not a closing confirmation. These are split adjusted bars; they identify the minute, not the exact second of each trade.

Claude Opus 5.5 web search only Right 67.6s

On Oct 8, 2026, BMNR's opening range ran from $23.77 to $24.30. It first traded above the range at 10:56 ET and first traded below it at 11:30 ET. The session high of $24.45 printed at 10:59 ET, and the session low of $23.25 printed at 13:05 ET.

These figures come from Yahoo Finance's 1-minute bars, which don't include pre- or post-market trading.

Item	Price	Time (ET)
Opening-range high (9:30–9:45)	$24.30	9:31 bar
Opening-range low (9:30–9:45)	$23.7729 (≈$23.77)	9:43 bar
First trade above the range high	$24.33	10:56
First trade below the range low	$23.76	11:30
Session high	$24.45	10:59
Session low	$23.25	13:05

The day's path: BMNR opened at about $24.12 and slid through the opening range. It broke out above the range in late morning and set the session high three minutes later. It then reversed, broke below the range half an hour after that, and bottomed early in the afternoon. It finished the regular session at about $24.06.
Minute-bar times: each time is the start of the 1-minute bar where the price printed. A different data feed that includes odd lots or a different set of exchanges could shift a high or low by a cent or two, or move a time by a minute.

Source: Yahoo Finance chart API, BMNR 1-min/5-min bars for Oct 8, 2026

Claude Opus 5.5 with Cavalry Right 19.6s

The opening range high was 24.30 and the low was 23.7729. BMNR first traded above the range at 10:56 ET and first traded below it at 11:30 ET. Its session high was 24.45 at 10:59 ET and its session low was 23.25 at 13:05 ET.

These times come from 1 minute regular hours bars for Oct 8, 2026. Each time is the start of the 1 minute bar in which the price printed.

Event	Price	Time (ET)
15 min opening range high (09:30 to 09:45)	24.30	09:31
15 min opening range low	23.7729	09:43
First trade above the range	24.33	10:56
First trade below the range	23.76	11:30
Session high	24.45	10:59
Session low	23.25	13:05

Breaking above: The stock came close to 24.30 several times between 10:29 and 10:34 (highs of 24.28 to 24.295) before the 10:56 bar finally traded through it. It ran on to the day's high three minutes later.
Breaking below: After the high it faded and broke the range low at 11:30. It kept falling to the day's low at 13:05.
Close: It recovered into the end of the day, and the last 5 minute bar (15:55 to 16:00) closed at 24.06. That is back inside the opening range.

Question 20Intraday

Hewlett Packard Enterprise (HPE) on Oct 6, 2026: the opening gap vs the Oct 5 close, the session low and its time, the first time it broke above its 15 minute opening range high, and the time of the session high.

Correct answer

HPE opening gap vs prior close: +2.06%
HPE regular session low: $68.56
Time of HPE low: 09:41 ET
First time HPE traded above the 15 minute range high: 09:52 ET
Time of HPE high: 15:47 ET

GPT 6.1 web search only Wrong 42.6s

The daily data agree on a $69.77 open, a $68.36 prior close, and a $68.56–$71.22 session range. I’m still checking for intraday records to verify the low, breakout, and high times.

For HPE on October 6, 2026, regular session:

Requested measure	Result
Opening gap vs. October 5 close	+$1.41 (+2.06%) — $69.77 open vs. $68.36 prior close
Session low and time	$68.56; time unverified
First break above the 15-minute opening-range high	Unverified
Session high and time	$71.22; time unverified

The prices are confirmed by Stock Analysis. I couldn’t access reliable intraday records to establish the three timestamps or the 9:30–9:45 a.m. Eastern opening-range high.

GPT 6.1 with Cavalry Right 22.6s

HPE common stock, October 6, 2026, regular session, all times ET, using 1 minute bars:

Measure	Result
Opening gap	+$1.41 (+2.06%): $69.77 at 09:30 versus October 5’s $68.36 official daily close
Session low	$68.5601 in the 09:41 bar
First opening range breakout	09:52 bar, high $70.50 exceeded the 09:30 to 09:45 range high of $70.44
Session high	$71.22 in the 15:47 bar

The first 1 minute close above the opening range high was $70.525 in the 09:53 bar. Times identify the containing minute, not the exact trade second.

Claude Opus 5.5 web search only Wrong 34.1s

I could answer only part of this. The opening gap comes from daily price data. I couldn't find minute-level data for Oct 6, 2026, so the timing questions are still open.

1. Opening gap: about +$1.41 (+2.06%), a gap up

The Oct 5 close was $68.36, which StockAnalysis and MarketBeat both report.
The Oct 6 open was $69.77.

2. Session low: $68.56. Time unknown.

The low was still above the prior close, so the gap never fully filled. It came within $0.20 of the prior close.
No source I found says when the low happened.

3. First break above the 15-minute opening-range high: unknown

This needs 1- to 5-minute bars from 9:30 to 9:45 ET and afterwards. No free source I checked had them for this date.

4. Session high: $71.22. Time unknown, but probably after 12:20 p.m. ET.

ad-hoc-news had the stock at $70.82 at 12:20 p.m. ET. It said the new 52-week high was $70.91 by then.
The day's high was $71.22, which is above $70.91. If that report is accurate, the high came after 12:20 p.m. ET. I'm inferring this; I don't have the exact time.

Full day: open $69.77, high $71.22, low $68.56, close $70.48 (+3.10%), volume about 16.3M shares. Investing.com shows about 16.7M.

A correction: MarketBeat connected the day's gain to a Daiwa upgrade, but other reports date that upgrade to Oct 1–2 (GuruFocus). It probably wasn't news on Oct 6.

Getting the timing answers: I'd need 1-minute or 5-minute bars for HPE on 2026-10-06. You can get these from a broker platform (thinkorswim, IBKR, or a TradingView chart replay) or a data API (Alpaca, Databento). With a CSV export, I can work out the low's time, the opening-range breakout, and the high's time exactly.

Sources:

Claude Opus 5.5 with Cavalry Partial 14.8s

HPE common stock opened up 2.06% on Oct 6, 2026. It made its low of the day at about 09:40 ET, first broke above its 15 minute opening range high in the 09:50 bar, and made its high of the day at about 15:45 ET.

Item	Value	Time (ET)
Oct 5 close	68.36	16:00
Oct 6 open	69.77	09:30
Opening gap	+1.41 (+2.06%)
Session low	68.56	09:40 to 09:45 bar
15 min opening range high	70.44	09:30 to 09:45
First break above it	high 70.69, close 70.60	09:50 to 09:55 bar
Session high	71.22	15:45 to 15:50 bar
Oct 6 close	70.48	16:00

Gap: 69.77 / 68.36 − 1 = +2.06%. Both are official daily prices.
Low: the official low was 68.56. The 5 minute bars place it in the 09:40 bar, which hit 68.5601.
Opening range: the 15 minute range ran from 68.5601 to 70.44. The 09:50 bar was the first to trade above 70.44 and it also closed above it.
High: the official high was 71.22. It came in the 15:45 bar, just before a heavy last 10 minutes that sold the stock down to a 70.48 close.

These times are 5 minute bars, so each one tells you which 5 minute window the move happened in, not the exact minute.

Question 21Intraday

Mattel (MAT) on Oct 12, 2026: opening gap vs the Oct 9 close, the first time it broke below its 15 minute opening range low, the session high and its time, and the time of the session low.

Correct answer

MAT opening gap vs prior close: +1.83%
First time MAT traded below the 15 minute range low: 09:49 ET
MAT regular session high: $17.04
Time of MAT high: 11:45 ET
Time of MAT low: 15:56 ET

GPT 6.1 web search only Wrong 54.8s

The daily sources agree on the October 9 close of $16.69, but differ on October 12’s open and high. I’m checking for intraday bars to resolve those differences and verify the requested times.

I could verify daily prices, but couldn’t access intraday bars to confirm the times.

Requested item	Finding
Opening gap vs. Oct. 9 close	+$0.26 (+1.56%), using the $16.95 open and $16.69 prior close reported by Stock Analysis.
First break below the 15-minute opening-range low	Unverified; requires intraday data for the 9:30–9:45 a.m. EDT range and subsequent trades.
Session high and time	$17.04 per Stock Analysis; time unverified.
Time of session low	Unverified; the reported daily low was $16.72.

There is a source discrepancy: ChartExchange reports a $16.91 open—giving +$0.22 (+1.32%)—and a $17.03 high. I can’t resolve that difference or give reliable timestamps without minute-level data.

GPT 6.1 with Cavalry Right 24.5s

MAT common stock, Oct 12, 2026, regular session, using 1 minute bars. All times ET.

Measure	Result
Opening gap	+$0.305, +1.83%
First opening range breakdown	09:49
Session high	$17.0377 at 11:45
Session low time	15:56, repeated at 15:57

The 09:30 open was $16.995, versus the Oct 9 official daily close of $16.69 at 16:00. The 15 minute opening range, 09:30 to 09:45, had a $16.82 low. The 09:49 bar first traded below it, reaching $16.77. The session low was $16.72.

Times identify the start of each 1 minute bar, not the exact trade second.

Claude Opus 5.5 web search only Right 79.6s

I pulled 1-minute bars from Yahoo Finance's chart data and checked them against the daily figures. Here's MAT on Monday, Oct 12, 2026, for the regular session in Eastern time:

1. Opening gap: up about 1.6–1.8%

The Oct 9 close was $16.69.
The first 1-minute bar opened at $16.995, a gap of +$0.305 (+1.83%). StockAnalysis lists the official open as $16.95, a gap of +$0.26 (+1.56%). The two sources disagree on the opening price, so I've given both.
The gap came after Seaport Research upgraded the stock to Buy that morning, with a $20 target.

2. First break below the 15-minute opening-range low: 9:49 AM

The opening range (9:30–9:44) had a low of $16.82, set at 9:31.
The 9:49 bar traded down to $16.77, the first time price went below $16.82. The 9:47 and 9:48 bars only reached $16.84.

3. Session high: $17.04 at 11:45 AM

The exact figure was $17.0377. Bars from 11:43 to 11:46 all traded near $17.00–17.04.

4. Session low: $16.72 at 3:56 PM

The 3:57 PM bar matched it. The stock closed at $16.76, up 0.4% for the day.

So the stock gapped up, sold off within the first 20 minutes, recovered to its high just before midday, and then faded to its low in the last few minutes of trading. The high, low and break times come from scanning Yahoo's raw 1-minute data, so a charting platform could be off by a minute or a cent.

Sources:

Yahoo Finance – MAT (1-minute chart data)
StockAnalysis – MAT price history
GuruFocus – Seaport upgrades Mattel to Buy
Robinhood – MAT

Claude Opus 5.5 with Cavalry Partial 16.4s

MAT gapped up about 1.6% on Oct 12, 2026. It first broke below its 15 minute opening range low at 09:45 ET. The session high was 17.0377 at 11:45 ET and the session low was 16.72 in the 15:55 ET bar.

Item	Value	Time (ET)
Oct 9 official close	16.69	16:00
Oct 12 open (official)	16.95	09:30
Opening gap	+1.56%	09:30
15 min opening range	16.82 to 16.995	09:30 to 09:45
First break below OR low	16.77 low, 16.79 close	09:45 bar
Session high	17.0377	11:45 bar
Session low	16.72	15:55 bar

Gap: 16.95 / 16.69 − 1 = +1.56%. The first 5 minute bar opened at 16.995, which would make the gap +1.83%. The official open of 16.95 is the better number to use.
Opening range: the 09:30, 09:35 and 09:40 bars set it. The low of 16.82 came in the 09:30 bar.
Break: the first bar after the range, 09:45 to 09:50, went down to 16.77 and closed at 16.79, below the range low. So the price traded below it and the bar also closed below it.
High: it came in a midday push. The 11:40 bar reached 17.015, then the 11:45 bar topped at 17.0377.
Low: it was set in the final bar, 15:55 to 16:00, on heavy closing volume. Earlier the price had only reached 16.755, at 09:55 and 15:20.

The bar figures come from 5 minute regular hours bars. The Oct 12 official daily bar is still provisional (open 16.95, high 17.0377, low 16.72, close 16.76), and its high and low match the bars.

Question 22Intraday

Coca Cola (KO) on Oct 8, 2026: what was the session VWAP, the close, the % change from the 9:30 open to the close, and what was the price at 12:00 ET?

Correct answer

KO session VWAP (typical price, regular session): $87.26
KO regular session close: $87.77
KO move from open to close: +1.75%
KO price at 12:00 ET: $86.98

GPT 6.1 web search only Partial 48.7s

The daily data shows an $86.26 open and an $87.77 close, which gives a 1.75% open-to-close gain. I’m checking intraday sources for the session VWAP and noon price; daily data alone can’t establish either.

For KO on October 8, 2026, in USD:

Metric	Result
Session VWAP, 9:30–16:00 ET	Unable to verify
Close	$87.77
Change from 9:30 open to close	+1.75%
Price at 12:00 ET	Unable to verify

The reported open was $86.26, so the open-to-close change is $(87.77 / 86.26 - 1) × 100 = 1.7505\%$. Historical prices

I couldn’t access reliable intraday data for the session VWAP or noon price; neither can be determined from daily OHLC data alone.

GPT 6.1 with Cavalry Right 25.3s

KO common stock, October 8, 2026, regular session:

Measure	Value	Time ET
Session VWAP, 5 minute bars	$87.419608	16:00
Official close, daily bar	$87.77	16:00
Open to close change	+1.75%	09:30 to 16:00
Noon price, 5 minute close	$86.985	12:00

Change calculated from the 09:30 opening price of $86.26: 87.77 / 86.26 − 1 = 1.75%.

The noon price is the close of the 11:55 to 12:00 bar, not an exact tick.

Claude Opus 5.5 web search only Partial 25.9s

I found the close and the open for Oct 8, 2026, so I could work out the % change. I couldn't find the session VWAP or the 12:00 ET price, because free sources only publish daily bars, not intraday data.

Item	Value
Open	$86.26
High / Low	$88.04 / $86.08
Close	$87.77 (prior close $85.82, so +2.3% on the day)
Open to close	+$1.51, or +1.75%
Volume	about 14.46M shares
Session VWAP	Not found
Price at 12:00 ET	Not found

Open: $86.26 is the official opening price from the daily data. The very first trade at 9:30 could differ slightly.
VWAP: The closest estimate I can give is the "typical price," (high + low + close) / 3 ≈ $87.30. It's only a rough stand-in and is not the real volume-weighted figure. The real VWAP needs minute-level data from a broker or a data service such as Databento or Bloomberg.
Sources disagree a little: MarketBeat's last trade was $87.733 with 14.51M shares, while StockAnalysis has a $87.77 close with 14.46M. I used the StockAnalysis close.
MarketBeat's reason for the move is shaky: It credits earnings and a raised outlook, but those results were from July 28. That's the article's interpretation, not something that happened on Oct 8.

If you can share 1-minute data for KO from your broker, I can calculate the exact VWAP and the 12:00 price.

Sources:

Claude Opus 5.5 with Cavalry Right 14.4s

KO common stock finished Thursday, Oct 8, 2026 at $87.77, up 1.75% from its 9:30 open. The session VWAP was $87.42, so the close was above it.

Measure	Value	Time / basis
Session VWAP	87.42	Regular hours, through the 15:55 ET 5 minute bar (bars closed by 16:00)
Open	86.26	9:30 ET, official daily bar
Close	87.77	16:00 ET, official settled close
Open to close	+1.75%	87.77 / 86.26 − 1 = 1.75%
Price at 12:00 ET	86.985	Close of the 11:55 to 12:00 ET 5 minute bar

How the day went:

The stock opened at 86.26 and sold off right away to the day's low of 86.08 in the first 5 minutes.
It then traded in a narrow 86.7 to 87.1 range until after 13:00.
A rally between 13:45 and 14:20 ET took it to about 88.03. That nearly matches the official high of 88.04.
It held around 87.7 to 87.9 for the rest of the day and closed at 87.77.
At noon it was still below where VWAP ended the day. Most of the gain came in the afternoon.

Question 23Cross sectional

Among these 11 semiconductor/AI hardware names (NVDA, AMD, MU, AVGO, INTC, SMCI, DELL, HPE, SNDK, CRWV, NBIS), which two had the highest relative volume on Oct 6, 2026 (that day's volume divided by the average volume of the prior 20 sessions), what were those ratios and their Oct 6 close to close moves, and which of the 11 had the lowest relative volume that day?

Correct answer

Top 2 by relative volume: NBIS (1.37x), AVGO (1.26x)
Their Oct 6 close to close moves: NBIS +7.44%, AVGO +3.67%
Lowest relative volume: DELL (0.66x)

GPT 6.1 web search only Right 45.0s

NBIS and AVGO had the highest relative volume; DELL had the lowest among the 11 names.

Rank	Stock	Oct. 6 volume	Prior 20-session average	Relative volume	Oct. 6 close-to-close move
Highest	NBIS	21,259,283	15,609,397.35	1.362×	+7.44% ($232.57 → $249.87)
Second	AVGO	30,562,946	23,920,871.40	1.278×	+3.67% ($362.51 → $375.81)
Lowest	DELL	5,401,756	8,195,303.80	0.659×	+3.93% ($552.29 → $574.00)

Calculated using the 20 sessions from September 8 through October 5, 2026, excluding October 6 from the average. Close-to-close moves compare October 6 with October 5.

GPT 6.1 with Cavalry Right 32.9s

NBIS and AVGO had the highest relative volume; DELL had the lowest among the 11 names on Oct 6, 2026.

Using official daily bars through the 16:00 ET close:

Ticker	Relative volume	Close to close move
NBIS	1.3720×	+7.44%
AVGO	1.2601×	+3.67%
DELL, lowest	0.6592×	+3.93%

Relative volume = Oct 6 volume / average volume of the prior 20 sessions, Sept 8 to Oct 5. Moves compare the Oct 6 close with Oct 5, using prices as traded.

Claude Opus 5.5 web search only Right 126.8s

NVDA data is available on Yahoo. Now fetching the other 10 tickers.

NBIS and AVGO had the highest relative volume on Oct 6, 2026. DELL had the lowest.

Rank	Ticker	Oct 6 volume	Prior 20-session avg	Relative volume	Oct 6 close-to-close
1	NBIS	21.42M	15.61M	1.37×	+7.44% (232.57 → 249.87)
2	AVGO	30.83M	24.47M	1.26×	+3.67% (362.51 → 375.81)
11 (lowest)	DELL	5.40M	8.19M	0.66×	+3.93% (552.29 → 574.00)

The other eight, highest to lowest:

Ticker	Relative volume	Oct 6 move
AMD	1.08×	+2.80%
CRWV	1.05×	+4.95%
NVDA	0.93×	+0.14%
INTC	0.92×	−3.18%
MU	0.85×	−1.73%
SMCI	0.75×	+0.63%
SNDK	0.73×	−2.56%
HPE	0.73×	+3.10%

How I calculated it

The 20 prior sessions run from Sep 8 to Oct 5, 2026. Sep 7 was Labor Day, so markets were closed.
The data is daily close and volume from Yahoo Finance's history pages, which uses consolidated volume. I added up the averages by hand rather than running a script, so treat the last decimal place as approximate.
The closes are Yahoo's split-adjusted closes. None of the 11 paid a dividend between Oct 5 and Oct 6, so the moves are the same on an adjusted basis.
Only NBIS and AVGO were clearly above normal volume. AMD and CRWV were only slightly above 1×, and the other seven traded less than usual.
DELL's low volume came on a gain of almost 4%. HPE and SNDK were close behind it at about 0.73×.

Sources:

Claude Opus 5.5 with Cavalry Right 37.1s

NBIS and AVGO had the highest relative volume on Oct 6, 2026. DELL had the lowest. All three closed higher that day.

Ticker	Rel. volume	Oct 6 close to close
NBIS	1.37x	+7.44% (232.57 to 249.87)
AVGO	1.26x	+3.67% (362.51 to 375.81)
DELL (lowest)	0.66x	+3.93% (552.29 to 574.00)

How the top three were calculated:

NBIS: 21,419,200 shares on Oct 6. The 20 session average was 15,611,745, and 21,419,200 / 15,611,745 = 1.37.
AVGO: 30,834,300 shares against a 24,469,010 average, so 30,834,300 / 24,469,010 = 1.26.
DELL: 5,401,800 shares against an 8,194,805 average, so 5,401,800 / 8,194,805 = 0.66. DELL rose almost 4% on about two thirds of its normal volume.

The other eight, from highest to lowest: AMD 1.08x, CRWV 1.05x, NVDA 0.93x, INTC 0.92x, MU 0.85x, SNDK 0.73x, HPE 0.73x and SMCI 0.75x. Only AMD and CRWV also traded above their 20 day average.

Method: I used the official consolidated daily volumes and closes. The 20 prior sessions run from Sep 8 to Oct 5, 2026, and Oct 6 is not part of the average. The daily moves compare the Oct 6 close with the Oct 5 close.

Question 24Cross sectional

Of these 20 large caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, TSLA, AMD, MU, INTC, PLTR, ORCL, KO, PFE, XOM, CVX, V, MA, GS, UBER), how many closed above their 20 day simple moving average of closes on Monday Oct 12, 2026 (SMA over the 20 sessions ending Oct 12)? Name them, and say which name closed furthest above its SMA and which furthest below (in %).

Correct answer

Closed above 20 day SMA: 14: AAPL, MSFT, AMZN, GOOG, META, TSLA, PLTR, KO, PFE, XOM, CVX, V, MA, UBER
Furthest above SMA: PLTR (+10.71%)
Furthest below SMA: INTC (−11.12%)

GPT 6.1 web search only Right 49.0s

14 of the 20 stocks closed above their 20-day SMA on Monday, October 12, 2026:

AAPL, MSFT, AMZN, GOOG, META, TSLA, PLTR, KO, PFE, XOM, CVX, V, MA, and UBER.

Extreme	Stock	Oct. 12 close	20-day SMA	% from SMA
Furthest above	Palantir (PLTR)	$209.00	$188.781	+10.71%
Furthest below	Intel (INTC)	$101.35	$114.034	−11.12%

Calculated using the Close column, rather than dividend-adjusted closes, for the 20 sessions from September 15 through October 12, inclusive. Percentage distance = (Oct. 12 close / SMA − 1) × 100.

GPT 6.1 with Cavalry Right 35.8s

14 of 20 closed above their 20 session SMA: AAPL, MSFT, AMZN, GOOG, META, TSLA, PLTR, KO, PFE, XOM, CVX, V, MA and UBER.

At the October 12, 2026, 16:00 ET daily close:

Furthest above: PLTR, +10.71%, close $209.00 versus SMA $188.781.
Furthest below: INTC, −11.12%, close $101.35 versus SMA $114.034.

Calculated using the 20 daily closes from September 15 through October 12 inclusive, as traded: (close / SMA − 1) × 100.

Provisional: October 12 closes are provisional.

Claude Opus 5.5 web search only Right 120.7s

The Yahoo chart API works. Pulling the other 19 tickers now.

14 of the 20 closed above their 20-day SMA on Monday, Oct 12, 2026.

Furthest above: PLTR closed at 209.00, about 10.7% above its SMA of about 188.78.
Furthest below: INTC closed at 101.35, about 11.1% below its SMA of about 114.03.

The SMA is the plain average of the 20 closes from Sep 15 to Oct 12, 2026, including Oct 12. The closes come from Yahoo Finance's daily chart data. I did the arithmetic by hand with no calculator, so the second decimal place could be slightly off. That doesn't change any above/below result, and the top and bottom names are well clear of the rest.

Above their SMA (14):

Ticker	Close	20-day SMA	% vs SMA
PLTR	209.00	188.78	+10.71%
MSFT	541.15	511.89	+5.72%
V	389.27	369.47	+5.36%
XOM	172.15	163.85	+5.07%
MA	595.09	566.75	+5.00%
CVX	215.00	207.93	+3.40%
AMZN	259.53	252.32	+2.86%
META	742.96	723.05	+2.75%
KO	89.79	87.43	+2.70%
UBER	71.50	69.75	+2.51%
TSLA	378.03	369.61	+2.28%
GOOG	348.97	342.61	+1.86%
AAPL	340.97	335.78	+1.55%
PFE	28.40	28.03	+1.33%

Below their SMA (6):

Ticker	Close	20-day SMA	% vs SMA
NVDA	226.32	227.50	−0.52%
AMD	594.24	603.11	−1.47%
GS	893.95	919.70	−2.80%
ORCL	137.39	141.70	−3.04%
MU	989.04	1041.51	−5.04%
INTC	101.35	114.03	−11.12%

INTC, MU and AMD all jumped in mid-to-late September and have fallen most days since early October, so their recent closes are well under the average. NVDA is only just below its SMA.

Sources:

Yahoo Finance chart API (same endpoint for each ticker)
Yahoo Finance AAPL history

Claude Opus 5.5 with Cavalry Right 65.8s

14 of the 20 closed above their 20 day SMA on Monday Oct 12, 2026. PLTR closed furthest above it, at +10.71%. INTC closed furthest below, at −11.12%.

Above (14): AAPL, MSFT, AMZN, GOOG, META, TSLA, PLTR, KO, PFE, XOM, CVX, V, MA, UBER
Below (6): NVDA, AMD, MU, INTC, ORCL, GS

Ticker	Close / SMA 20	vs SMA
PLTR	209.00 / 188.78	+10.71%
MSFT	541.15 / 511.89	+5.72%
V	389.27 / 369.47	+5.36%
XOM	172.15 / 163.85	+5.07%
MA	595.09 / 566.75	+5.00%
CVX	215.00 / 207.93	+3.40%
AMZN	259.53 / 252.32	+2.86%
META	742.96 / 723.05	+2.75%
KO	89.79 / 87.43	+2.70%
UBER	71.50 / 69.75	+2.51%
TSLA	378.03 / 369.61	+2.28%
GOOG	348.97 / 342.61	+1.86%
AAPL	340.97 / 335.78	+1.54%
PFE	28.40 / 28.03	+1.33%
NVDA	226.32 / 227.50	−0.52%
AMD	594.24 / 603.11	−1.47%
GS	893.95 / 919.70	−2.80%
ORCL	137.39 / 141.70	−3.04%
MU	989.04 / 1041.51	−5.04%
INTC	101.35 / 114.03	−11.12%

The SMA is the simple average of the 20 daily closes from Sep 14 to Oct 12, so Oct 12 is included. The closes come from daily bars at the 16:00 ET close.

The Oct 12 closes are still provisional. NVDA is the only name close enough to its SMA (−0.52%) that the final close could change its side. ORCL's provisional bar also has its open above the day's high, so treat that row with some caution until it settles.

Question 25Cross sectional

Crypto linked basket (IBIT, BMNR, MARA, RIOT, CLSK, HUT, WULF, IREN, HOOD, SOFI): compute the five session return from the Oct 5 close to the Oct 12 close, 2026. Which name held up best, which two did worst, and how many of the ten were positive over the window?

Correct answer

Best: IBIT (−3.50%)
Worst two: CLSK (−17.47%), MARA (−15.49%)
Positive Oct 5 → Oct 12: 0

GPT 6.1 web search only Right 44.3s

IBIT held up best, down 3.50%. CLSK and MARA did worst, down 17.47% and 15.49%, respectively. None of the ten were positive (0/10).

Five-session price return = (Oct 12 close / Oct 5 close − 1) × 100, using regular-session closes in USD:

Name / price source	Oct 5 close	Oct 12 close	Return
IBIT	$48.56	$46.86	−3.50%
BMNR	$26.79	$23.83	−11.05%
MARA	$11.17	$9.44	−15.49%
RIOT	$19.32	$16.47	−14.75%
CLSK	$12.48	$10.30	−17.47%
HUT	$89.27	$85.24	−4.51%
WULF	$14.79	$13.37	−9.60%
IREN	$40.48	$34.80	−14.03%
HOOD	$114.11	$109.22	−4.29%
SOFI	$15.92	$15.23	−4.33%

GPT 6.1 with Cavalry Right 30.0s

IBIT held up best, down 3.50%. CLSK and MARA did worst, down 17.47% and 15.49%. None of the ten were positive.

Five session price return = (Oct 12 close / Oct 5 close − 1) × 100, using the 2026 daily session closes at 16:00 ET.

Ticker	Return
IBIT	−3.50%
BMNR	−11.05%
MARA	−15.49%
RIOT	−14.75%
CLSK	−17.47%
HUT	−4.51%
WULF	−9.60%
IREN	−14.03%
HOOD	−4.29%
SOFI	−4.33%

Oct 12 closes are provisional.

Claude Opus 5.5 web search only Right 30.2s

IBIT held up best. CLSK and MARA did worst. None of the ten were positive over the window.

The window runs from the Mon Oct 5 close to the Mon Oct 12 close (Oct 12 was a normal trading day for stocks), covering five sessions: Oct 6–9 and Oct 12. Closes come from Yahoo Finance's daily chart data.

Ticker	Oct 5 close	Oct 12 close	5-session return
IBIT	48.56	46.86	−3.50% (best)
HOOD	114.11	109.22	−4.29%
SOFI	15.92	15.23	−4.33%
HUT	89.27	85.24	−4.51%
WULF	14.79	13.37	−9.60%
BMNR	26.79	23.83	−11.05%
IREN	40.48	34.80	−14.03%
RIOT	19.32	16.47	−14.75%
MARA	11.17	9.44	−15.49% (2nd worst)
CLSK	12.48	10.30	−17.47% (worst)

Best: IBIT fell 3.5%. Bitcoin itself only dropped that much, while the stocks tied to it fell further. HOOD, SOFI and HUT were close behind at about −4.3% to −4.5%.
Worst two: CLSK fell 17.5% and MARA fell 15.5%. RIOT (−14.8%) and IREN (−14.0%) were close behind them. The pure bitcoin miners did worst.
Positive: 0 of 10. The basket's equal-weight average was about −9.9%.

One detail: HUT finished up from Oct 5 to Oct 6 (89.27 → 92.22), then fell 13.7% from there to its Oct 8 low before partly recovering.

Claude Opus 5.5 with Cavalry Right 26.6s

None of the ten finished higher. All ten fell between the Oct 5 and Oct 12, 2026 closes. IBIT held up best at −3.50%. CLSK (−17.47%) and MARA (−15.49%) did worst.

Each return is Oct 12 close / Oct 5 close − 1, using official daily closes:

Ticker	Oct 5 → Oct 12 close	5 session return
IBIT	48.56 → 46.86	−3.50%
HOOD	114.11 → 109.22	−4.29%
SOFI	15.92 → 15.23	−4.33%
HUT	89.27 → 85.24	−4.51%
WULF	14.79 → 13.37	−9.60%
BMNR	26.79 → 23.83	−11.05%
IREN	40.48 → 34.80	−14.03%
RIOT	19.32 → 16.47	−14.75%
MARA	11.17 → 9.44	−15.49%
CLSK	12.48 → 10.30	−17.47%

Held up best: IBIT, the spot bitcoin ETF, lost 3.50%. HOOD and SOFI, the two broker names, were close behind at about −4.3%. Among the miners, HUT held up best at −4.51%, after recovering from its Oct 8 close of 79.59.
Worst two: CLSK (12.48 to 10.30) and MARA (11.17 to 9.44). Both closed lower on each of the five sessions.
How bad it was: All ten fell. The pure bitcoin miners (MARA, RIOT, CLSK) lost roughly four to five times as much as IBIT. IREN, which mixes mining with AI hosting, fell almost as much.

The Oct 12 closes are still provisional. Oct 5 to Oct 9 are settled.

Question 26Cross sectional

Breadth check for Oct 8, 2026 across these 20 large caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, TSLA, AMD, MU, INTC, PLTR, ORCL, KO, PFE, XOM, CVX, V, MA, GS, UBER): how many closed higher than on Oct 7, which was the best performer and which the worst (close to close %)?

Correct answer

Advancers on Oct 8: 8: AAPL, PLTR, KO, XOM, CVX, V, MA, UBER
Best: CVX (+3.12%)
Worst: ORCL (−5.48%)

GPT 6.1 web search only Right 43.6s

8 of 20 stocks (40%) closed higher on Oct. 8, 2026 versus Oct. 7; 12 declined and none were unchanged.

The gainers were AAPL, PLTR, KO, XOM, CVX, V, MA, and UBER.

Performer	Stock	Oct. 7 close	Oct. 8 close	Change
Best	Chevron (CVX)	$205.15	$211.55	+3.12%
Worst	Oracle (ORCL)	$143.56	$135.69	−5.48%

Calculated using closing prices: (Oct. 8 close ÷ Oct. 7 close − 1) × 100, excluding dividends.

GPT 6.1 with Cavalry Right 21.5s

8 of 20 stocks closed higher on Oct 8, 2026: 40% advancing, 12 declining, none unchanged.

Performer	Ticker	Close to close
Best	CVX	+3.12%
Worst	ORCL	−5.48%

Based on daily bars closing at 16:00 ET:

CVX: $205.15 on Oct 7 to $211.55 on Oct 8.
ORCL: $143.56 on Oct 7 to $135.69 on Oct 8.

Returns use as traded closes, without dividend or split adjustments.

Claude Opus 5.5 web search only Right 39.0s

8 of the 20 closed higher on Oct 8, 2026, and 12 closed lower. Chevron (CVX) did best at +3.12%. Oracle (ORCL) did worst at −5.48%, just behind Intel (INTC) at −5.34%.

Ticker	Oct 7 close	Oct 8 close	% chg
CVX	205.15	211.55	+3.12%
XOM	164.05	168.50	+2.71%
UBER	68.45	70.24	+2.62%
PLTR	194.12	198.78	+2.40%
KO	85.82	87.77	+2.27%
AAPL	336.67	340.42	+1.11%
MA	570.06	574.76	+0.82%
V	372.10	375.10	+0.81%
META	721.31	720.89	−0.06%
GS	887.21	882.59	−0.52%
PFE	28.00	27.82	−0.64%
GOOG	347.37	344.86	−0.72%
TSLA	377.81	375.00	−0.74%
MSFT	529.76	522.61	−1.35%
AMZN	259.92	254.06	−2.25%
NVDA	237.47	230.48	−2.94%
AMD	645.86	620.68	−3.90%
MU	1,088.00	1,035.84	−4.79%
INTC	113.12	107.08	−5.34%
ORCL	143.56	135.69	−5.48%

Energy (CVX, XOM), consumer names and payments stocks rose. Semiconductors and Oracle took the biggest losses.

The closes come from Yahoo Finance's historical prices pages. A summarizing tool read them out, so a misread number is possible. Check the source before you rely on any single figure. Yahoo's adjusted closes give the same ranking.

Sources:

Yahoo Finance historical prices, e.g. AAPL (same /quote/<TICKER>/history/ page for all 20 tickers)

Claude Opus 5.5 with Cavalry Right 34.0s

Only 8 of the 20 closed higher on Oct 8, 2026 than on Oct 7. The other 12 closed lower, so breadth was weak, with chips and software leading the drop and energy holding up best.

Best: CVX (Chevron) rose from 205.15 to 211.55, which is 211.55 / 205.15 − 1 = +3.12%.
Worst: ORCL (Oracle) fell from 143.56 to 135.69, which is 135.69 / 143.56 − 1 = −5.48%. INTC (−5.34%) and MU (−4.79%) were close behind.

Ticker	Close Oct 7 to Oct 8	Chg %
CVX	205.15 to 211.55	+3.12%
XOM	164.05 to 168.50	+2.71%
UBER	68.45 to 70.24	+2.62%
PLTR	194.12 to 198.78	+2.40%
KO	85.82 to 87.77	+2.27%
AAPL	336.67 to 340.42	+1.11%
MA	570.06 to 574.76	+0.82%
V	372.10 to 375.10	+0.81%
META	721.31 to 720.89	−0.06%
GS	887.21 to 882.59	−0.52%
PFE	28.00 to 27.82	−0.64%
GOOG	347.37 to 344.86	−0.72%
TSLA	377.81 to 375.00	−0.74%
MSFT	529.76 to 522.61	−1.35%
AMZN	259.92 to 254.06	−2.25%
NVDA	237.47 to 230.48	−2.94%
AMD	645.86 to 620.68	−3.90%
MU	1088.00 to 1035.84	−4.79%
INTC	113.12 to 107.08	−5.34%
ORCL	143.56 to 135.69	−5.48%

These are the official 16:00 ET daily closes as traded (both sessions final). The 8 gainers were the two oil majors, the defensives and payments stocks, plus AAPL, PLTR and UBER. Semis (MU, INTC, AMD, NVDA) and ORCL had the biggest losses.

Question 27Cross sectional

Among these speculative tech names (IONQ, QBTS, RGTI, SOUN, BBAI, OKLO, RKLB, ASTS, LUNR, JOBY, ACHR, PLTR), which three had the widest trading range on Oct 7, 2026, measured as (high minus low) divided by the Oct 6 close? Give the three ranges, and which of the twelve had the narrowest range.

Correct answer

Widest three: LUNR (+6.44%), ACHR (+5.16%), ASTS (+4.40%)
Narrowest: SOUN (+1.92%)

GPT 6.1 web search only Right 29.9s

The three widest ranges were LUNR, ACHR, and ASTS, calculated as $(\text{Oct 7 high} - \text{Oct 7 low}) / \text{Oct 6 close} \times 100$.

Rank	Stock	Oct 7 high	Oct 7 low	Oct 6 close	Range
1	LUNR	$14.90	$13.93	$15.06	6.44%
2	ACHR	$4.73	$4.49	$4.65	5.16%
3	ASTS	$61.66	$58.88	$63.12	4.40%

SOUN had the narrowest range of all twelve: 1.92%, using $(\$5.71-\$5.60)/\$5.72$. Price data

GPT 6.1 with Cavalry Right 27.3s

LUNR, ACHR and ASTS had the widest ranges; SOUN had the narrowest.

Using Oct 7, 2026 regular session daily bars, finalized at 16:00 ET, divided by the Oct 6 daily close at 16:00 ET:

Ticker	Calculation	Range
LUNR	(14.90 − 13.93) / 15.06	6.44%
ACHR	(4.73 − 4.49) / 4.65	5.16%
ASTS	(61.66 − 58.88) / 63.12	4.40%
SOUN	(5.71 − 5.60) / 5.72	1.92%

Prices are as traded, not adjusted for later splits or dividends.

Claude Opus 5.5 web search only Right 41.0s

On Oct 7, 2026, the three widest ranges were LUNR (6.44%), ACHR (5.16%) and ASTS (4.40%). SOUN had the narrowest range, at 1.92%. Range here means (Oct 7 high − Oct 7 low) ÷ Oct 6 close.

Three widest:

LUNR: 6.44%. High 14.90, low 13.93, Oct 6 close 15.06.
ACHR: 5.16%. High 4.73, low 4.49, Oct 6 close 4.65.
ASTS: 4.40%. High 61.66, low 58.88, Oct 6 close 63.12.

Narrowest: SOUN. High 5.71, low 5.60, Oct 6 close 5.72.

All twelve, widest to narrowest:

Ticker	Oct 7 High	Oct 7 Low	Oct 6 Close	Range %
LUNR	14.90	13.93	15.06	6.44%
ACHR	4.73	4.49	4.65	5.16%
ASTS	61.66	58.88	63.12	4.40%
IONQ	42.38	40.76	43.29	3.74%
OKLO	37.39	35.97	38.55	3.68%
RKLB	73.16	70.63	75.06	3.37%
JOBY	5.77	5.58	5.78	3.29%
QBTS	15.48	14.98	15.79	3.17%
RGTI	14.89	14.45	15.17	2.90%
BBAI	2.55	2.48	2.58	2.71%
PLTR	194.70	190.11	192.07	2.39%
SOUN	5.71	5.60	5.72	1.92%

The prices come from Yahoo Finance's daily history pages, read through a tool that summarizes web pages, so I didn't check them against the raw CSV data. The cheapest stocks (BBAI, SOUN, ACHR, JOBY) move a lot on small rounding: a $0.01 change in BBAI's high or low shifts its range by about 0.4 percentage points. Even so, the gaps at the top (ASTS 4.40% vs. IONQ 3.74%) and at the bottom (SOUN 1.92% vs. PLTR 2.39%) are big enough that the answer should hold.

Sources:

Claude Opus 5.5 with Cavalry Right 24.6s

On Oct 7, 2026 the three widest ranges were LUNR (6.44%), ACHR (5.16%) and ASTS (4.40%). The narrowest of the twelve was SOUN at 1.92%. Ranges use official daily bars for the regular session (09:30 to 16:00 ET) as (Oct 7 high − Oct 7 low) / Oct 6 close.

The three widest

LUNR: (14.90 − 13.93) / 15.06 = 6.44%
ACHR: (4.73 − 4.49) / 4.65 = 5.16%
ASTS: (61.66 − 58.88) / 63.12 = 4.40%

The narrowest

SOUN: (5.71 − 5.60) / 5.72 = 1.92%

All twelve, widest first

Ticker	Oct 7 high / low	Range %
LUNR	14.90 / 13.93	6.44%
ACHR	4.73 / 4.49	5.16%
ASTS	61.66 / 58.88	4.40%
IONQ	42.38 / 40.76	3.74%
OKLO	37.39 / 35.97	3.68%
RKLB	73.16 / 70.63	3.37%
JOBY	5.77 / 5.58	3.29%
QBTS	15.48 / 14.98	3.17%
RGTI	14.89 / 14.45	2.90%
BBAI	2.55 / 2.48	2.71%
PLTR	194.70 / 190.11	2.39%
SOUN	5.71 / 5.60	1.92%

All twelve bars are settled. Most of these stocks also closed down from Oct 6. PLTR and ACHR were the only two that closed higher.

Question 28Cross sectional

Which of these ten mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX) set their highest close of the 20 sessions ending Oct 9, 2026 on Oct 9 itself? And for each mega cap, how far was the Oct 9 close below its highest close of those 20 sessions. Name the one furthest below and the %.

Correct answer

20 session closing high on Oct 9: 3: MSFT, AMZN, TSLA
Furthest below its 20 session closing high: NFLX (−12.48%)

GPT 6.1 web search only Right 39.3s

MSFT, AMZN and TSLA set their highest close of the 20-session window on October 9, 2026. NFLX was furthest below its highest close, by 12.48%.

The window is September 14–October 9, 2026, inclusive. Using the daily Close column, the percentage below is calculated as (highest close − Oct 9 close) ÷ highest close × 100.

Stock / source	Oct 9 close	Highest close	Date of highest close	$ below	% below
AAPL	$336.64	$341.07	Sep 25	$4.43	1.30%
MSFT	$535.07	$535.07	Oct 9	$0.00	0.00%
NVDA	$229.28	$239.24	Oct 6	$9.96	4.16%
AMZN	$262.43	$262.43	Oct 9	$0.00	0.00%
GOOG	$347.86	$350.87	Sep 21	$3.01	0.86%
META	$718.67	$777.59	Sep 24	$58.92	7.58%
AVGO	$361.54	$376.51	Oct 7	$14.97	3.98%
ORCL	$141.40	$150.59	Sep 17	$9.19	6.10%
TSLA	$382.70	$382.70	Oct 9	$0.00	0.00%
NFLX	$70.30	$80.32	Sep 14	$10.02	12.48%

GPT 6.1 with Cavalry Right 22.5s

MSFT, AMZN and TSLA set their highest close on Oct 9, 2026. NFLX was furthest below, at 12.48%.

The 20 sessions run from Sept 14 to Oct 9, inclusive. Using unadjusted daily closing bars at 16:00 ET:

Ticker	Highest close date	Oct 9 below highest
AAPL	Sept 25	1.30%
MSFT	Oct 9	0.00%
NVDA	Oct 6	4.16%
AMZN	Oct 9	0.00%
GOOG	Sept 21	0.86%
META	Sept 24	7.58%
AVGO	Oct 7	3.98%
ORCL	Sept 17	6.10%
TSLA	Oct 9	0.00%
NFLX	Sept 14	12.48%

Calculation: (highest close − Oct 9 close) / highest close × 100.

NFLX closed at 70.30 on Oct 9, versus its highest close of 80.32 on Sept 14, both at the 16:00 ET daily close.

Claude Opus 5.5 web search only Right 54.9s

Three of the ten set their 20-session high on Oct 9 itself: MSFT, AMZN and TSLA. Netflix closed furthest below its high: NFLX at $70.30 was about 12.5% below its $80.32 close on Sep 14.

The 20 sessions run from Sep 14 to Oct 9, 2026. The closes come from Yahoo Finance's daily chart data, read through a fetch tool that summarizes pages rather than handing back the raw file. For GOOG, the tool labelled the dates wrong. The timestamps were the same as for the other tickers, so I matched those closes to the same Sep 14–Oct 9 sessions.

Ticker	20-session high close (date)	Oct 9 close	Oct 9 vs. high
MSFT	535.07 (Oct 9)	535.07	0.00%, high on Oct 9
AMZN	262.43 (Oct 9)	262.43	0.00%, high on Oct 9
TSLA	382.70 (Oct 9)	382.70	0.00%, high on Oct 9
GOOG	350.87 (Sep 21)	347.86	−0.86%
AAPL	341.07 (Sep 25)	336.64	−1.30%
AVGO	376.51 (Oct 7)	361.54	−3.98%
NVDA	239.24 (Oct 6)	229.28	−4.16%
ORCL	150.59 (Sep 17)	141.40	−6.10%
META	777.59 (Sep 24)	718.67	−7.58%
NFLX	80.32 (Sep 14)	70.30	−12.48%

NFLX's high was the first session of the window. It slid to $67.06 by Oct 2 and had only partly recovered by Oct 9.

Sources:

Yahoo Finance chart API (AAPL example; same query used for each ticker)

Claude Opus 5.5 with Cavalry Right 24.5s

MSFT, AMZN and TSLA were the only three that set their highest close of the 20 sessions (Sep 14 to Oct 9, 2026) on Oct 9 itself. The furthest below its high was NFLX: its Oct 9 close of 70.30 was −12.48% under its 80.32 close on Sep 14, the first day of the window.

All figures are official daily closes as traded:

Ticker	Highest close (date)	Oct 9 close, vs high
AAPL	341.07 (Sep 25)	336.64, −1.30%
MSFT	535.07 (Oct 9)	535.07, 0.00%
NVDA	239.24 (Oct 6)	229.28, −4.16%
AMZN	262.43 (Oct 9)	262.43, 0.00%
GOOG	350.87 (Sep 21)	347.86, −0.86%
META	777.59 (Sep 24)	718.67, −7.58%
AVGO	376.51 (Oct 7)	361.54, −3.98%
ORCL	150.59 (Sep 17)	141.40, −6.10%
TSLA	382.70 (Oct 9)	382.70, 0.00%
NFLX	80.32 (Sep 14)	70.30, −12.48%

How the NFLX figure works: 70.30 / 80.32 − 1 = −12.48%. NFLX fell steadily for most of the window, closing at 67.06 on Oct 2, and had only partly recovered by Oct 9. META was the next furthest below (−7.58%), then ORCL (−6.10%).

Question 29Cross sectional

Using daily close to close returns from Sep 1 through Oct 9, 2026 (Pearson correlation of daily % changes), what was the correlation of IBIT with each of MARA, IREN and HUT, and which of the three was most correlated?

Correct answer

Corr(IBIT, MARA): 0.62
Corr(IBIT, IREN): 0.40
Corr(IBIT, HUT): 0.45
Most correlated of the three: MARA

GPT 6.1 web search only Right 37.3s

MARA was the most correlated with IBIT.

Stock	Pearson correlation with IBIT
MARA	0.6214
IREN	0.3976
HUT	0.4520

Calculated across 28 daily returns dated September 1–October 9, 2026, using $100(C_t/C_{t-1}-1)$ and August 31’s close for the September 1 return.

Closing-price sources: IBIT, MARA, IREN, HUT.

GPT 6.1 with Cavalry Right 20.3s

MARA was most correlated with IBIT.

Pearson correlation of daily percentage returns, Sep 1 through Oct 9, 2026 inclusive:

Pair	Correlation
IBIT / MARA	0.6214
IBIT / IREN	0.3977
IBIT / HUT	0.4520

Calculated from 28 matching daily returns, using daily closing prices and return = (close / previous close − 1) × 100. Aug 31’s close supplies the starting baseline. Prices are as traded, not adjusted for later splits or dividends.

Claude Opus 5.5 web search only Right 100.9s

Stooq returned nothing. I'll try Yahoo Finance's chart API.

MARA was the most correlated with IBIT, at about 0.61. HUT came next at about 0.45, and IREN was lowest at about 0.40.

Pair	Correlation (27 returns, Sep 2–Oct 9)	Correlation (28 returns, including the Aug 31→Sep 1 move)
IBIT vs MARA	0.61	0.62
IBIT vs HUT	0.45	0.45
IBIT vs IREN	0.40	0.40

The two columns depend on whether Sep 1 is the first close or the first return. Either way, the order is the same: MARA > HUT > IREN.

How I got these numbers:

I took daily closing prices from Yahoo Finance's historical price pages (Aug 31–Oct 9, 2026; there was no trading on Sep 7 for Labor Day).
I turned each day's close into a % change from the previous close and calculated the correlations from those.
I had no way to run code here, so I did the arithmetic by hand, rounding each return to about three decimal places. Treat the second decimal as approximate (roughly ±0.01). The ranking is not close enough for that rounding to change it.

What drove the results:

MARA moved with IBIT on all three of IBIT's biggest days: Sep 3 (+5.8% vs +10.8%), Sep 18 (+6.3% vs +13.7%) and the Oct 7–8 drop. It also fell steadily from late September through October.
HUT was much more volatile (from −10.9% on Oct 7 to +9.2% on Sep 3), with large moves that didn't match IBIT. For example, it rose 8.8% on Sep 10 when IBIT fell.
IREN rallied hard from Sep 2 to Sep 4 while IBIT was mostly falling. That lowered its correlation.

Sources:

Claude Opus 5.5 with Cavalry Right 80.6s

MARA was the most correlated with IBIT, at about 0.62. HUT came second and IREN third.

I used the official daily closes. That gives 28 daily % returns from Sep 1 to Oct 9, 2026, with the Aug 31 close as the base for Sep 1. Correlations were calculated over the same 28 sessions for all four tickers.

Pair	Pearson r
IBIT vs MARA	0.62
IBIT vs HUT	0.45
IBIT vs IREN	0.40

I worked these out by hand from the closes, so treat the second decimal as approximate. The order is clear either way.

Why MARA leads:

MARA's biggest days lined up with IBIT's:
Sep 3: IBIT +5.85%, MARA +10.79%
Sep 18: IBIT +6.28%, MARA +13.75%
MARA also fell on the late sell off days, Oct 7 and Oct 8, when IBIT fell.

Why HUT and IREN are lower:

IREN rose on days IBIT fell, for example +7.28% on Sep 4 and +5.04% on Sep 8, when IBIT was −2.42% and −1.86%.
HUT was much more volatile and had swings of its own, for example +8.83% on Sep 11 when IBIT was +0.21%.
Both have been trading on more than bitcoin lately, likely their AI and data center plans.

Over the whole window (Aug 31 to Oct 9 close):

Ticker	Change
IBIT	+4.2%
HUT	+7.2%
MARA	−10.4%
IREN	−5.2%

Question 30Cross sectional

On Oct 7, 2026, which three of these 20 large caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, TSLA, AMD, MU, INTC, PLTR, ORCL, KO, PFE, XOM, CVX, V, MA, GS, UBER) had the largest opening gaps in absolute terms versus their Oct 6 close, what were the gaps, and did each of those three close above or below its own opening price?

Correct answer

Largest absolute gaps: MU, AMD, GS
Their gaps: MU −2.70%, AMD −2.26%, GS −1.82%
Close vs open: MU above, AMD above, GS above

GPT 6.1 web search only Right 38.1s

The top three were MU, AMD, and GS, ranking by the absolute percentage opening gap: (Oct. 7 open ÷ Oct. 6 close − 1) × 100.

Stock	Oct. 6 close	Oct. 7 open	Opening gap	Oct. 7 close	Close vs. open
MU	$1,045.56	$1,017.37	−2.70% (−$28.19)	$1,088.00	Above, by $70.63
AMD	$649.42	$634.77	−2.26% (−$14.65)	$645.86	Above, by $11.09
GS	$897.18	$880.85	−1.82% (−$16.33)	$887.21	Above, by $6.36

All three gapped down and closed above their own opening prices. If you meant absolute dollar gaps, the same three qualify, ordered MU, GS, AMD.

GPT 6.1 with Cavalry Right 31.8s

MU, AMD and GS had the largest absolute percentage opening gaps among all 20 stocks. All three gapped down and closed above their own opening prices.

Using unadjusted daily bars, gap = (Oct 7 open / Oct 6 close − 1) × 100. Opens are at 09:30 ET; closes at 16:00 ET.

Ticker	Opening gap	Oct 7 close versus open
MU	−2.70% (−$28.19)	Above: $1,088.00 versus $1,017.37
AMD	−2.26% (−$14.65)	Above: $645.86 versus $634.77
GS	−1.82% (−$16.33)	Above: $887.21 versus $880.85

Oct 6 closing prices were MU $1,045.56, AMD $649.42 and GS $897.18. Ranking by absolute dollar gaps gives the same three, ordered MU, GS, AMD.

Claude Opus 5.5 web search only Right 62.1s

The three largest opening gaps on Oct 7, 2026 were MU, AMD and GS. All three gapped down, and all three closed above their opening price.

Rank	Ticker	Oct 6 close	Oct 7 open	Gap	Oct 7 close	Close vs. open
1	MU	$1,045.56	$1,017.37	−$28.19 (−2.70%)	$1,088.00	Above (+$70.63, +6.9%)
2	AMD	$649.42	$634.77	−$14.65 (−2.26%)	$645.86	Above (+$11.09, +1.7%)
3	GS	$897.18	$880.85	−$16.33 (−1.82%)	$887.21	Above (+$6.36, +0.7%)

Percent vs. dollars: By percentage the order is MU, AMD, GS. By dollar amount it's MU, GS, AMD. Either way it's the same three stocks.
Next largest: ORCL (−1.54%) and AAPL (+1.00%, +$3.33). Every other stock opened within about 0.8% of its prior close.
MU's day: It recovered its whole gap and finished about 4.1% above its Oct 6 close, near the day's high of $1,089.22. AMD and GS recovered part of their gaps but still closed below their Oct 6 closes.
Context: Investrade's recap says GS fell along with other banks ahead of next week's earnings. I didn't find a reason given for the MU or AMD gaps.

The prices come from StockAnalysis.com's daily history pages, which I read through a page summarizer rather than an official exchange feed. AAPL's numbers matched on a spot check, but small differences from other sources are possible.

Sources:

StockAnalysis – MU history, AMD, GS, plus the matching pages for the other 17 tickers (e.g. AAPL, ORCL)
Investrade – Market Review: October 07, 2026
Yahoo Finance – Stock Market News for Oct 7, 2026

Claude Opus 5.5 with Cavalry Right 33.6s

All three of the biggest opening gaps on Oct 7, 2026 were down gaps: MU (−2.70%), AMD (−2.26%) and GS (−1.82%). All three then closed above their opening price.

These are official daily bars, regular session, with Oct 7 open compared to Oct 6 close:

MU (Micron common stock): Oct 6 close 1045.56, Oct 7 open 1017.37, a gap of −2.70%. It closed at 1088.00, above the open by 6.94%. That turned the gap down into a gain of about 4.1% on the day.
AMD (AMD common stock): Oct 6 close 649.42, Oct 7 open 634.77, a gap of −2.26%. It closed at 645.86, above the open by 1.75%.
GS (Goldman Sachs common stock): Oct 6 close 897.18, Oct 7 open 880.85, a gap of −1.82%. It closed at 887.21, above the open by 0.72%.

The next largest gaps were ORCL (−1.54%), AAPL (+1.00%) and AMZN (−0.80%). The other 14 names opened within 0.8% of their Oct 6 close.

Question 31Cross sectional

First half hour on Oct 9, 2026: for these ten mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX), measure each stock's % change from its 9:30 ET opening print to its 10:00 ET price. Which rose the most, which fell the most, and how many moved more than 0.6% in either direction over that half hour?

Correct answer

Biggest gain 9:30 to 10:00: ORCL (+1.63%)
Biggest drop 9:30 to 10:00: NVDA (−1.28%)
Moved more than 0.6% either way: 6: NVDA, AMZN, META, ORCL, TSLA, NFLX

GPT 6.1 web search only Wrong 53.7s

The sources I’ve found show daily opening prices, but I haven’t verified the 10:00 a.m. prices yet. I’m checking intraday data feeds to calculate the requested half-hour moves.

I couldn’t verify the 10:00 a.m. ET prices for October 9, 2026 from the accessible intraday feeds, so I can’t reliably name the biggest riser, biggest faller, or count above 0.6%. The historical data I could access provides daily prices, which don’t establish the half-hour moves.

The calculation for each stock is:

\[
100 \times \left(\frac{P_{10:00}}{P_{9:30\ opening\ print}}-1\right)
\]

The count must use absolute changes strictly greater than 0.6%, before rounding. A timestamped intraday export for the ten tickers would let me complete the table and rankings.

GPT 6.1 with Cavalry Right 36.1s

ORCL rose most, +1.63%; NVDA fell most, −1.28%. Six stocks moved more than 0.6% from 09:30 to 10:00 ET on October 9, 2026.

Measured using the 09:30 bar opening price and the bar close ending at 10:00 ET, with no prices after 10:00 included.

Ticker	09:30 open → 10:00 close	Change
AAPL	331.79 → 332.51	+0.22%
MSFT	528.235 → 527.91	−0.06%
NVDA	233.875 → 230.89	−1.28%
AMZN	256.30 → 258.42	+0.83%
GOOG	348.01 → 347.90	−0.03%
META	726.42 → 718.74	−1.06%
AVGO	365.59 → 363.80	−0.49%
ORCL	136.70 → 138.93	+1.63%
TSLA	382.38 → 385.23	+0.75%
NFLX	70.60 → 71.42	+1.16%

Calculation: (10:00 price / 09:30 open − 1) × 100. Opening prices use 1 minute bars, except ORCL’s 5 minute bar; endpoint prices use 5 minute closes.

Above the threshold: NVDA, AMZN, META, ORCL, TSLA and NFLX, counting unrounded changes.

Claude Opus 5.5 web search only Right 41.5s

ORCL rose the most (about +1.6%), NVDA fell the most (about −1.3%), and 6 of the 10 moved more than 0.6% in either direction.

I used Yahoo Finance 1-minute bars for Fri Oct 9, 2026. The "open" is the open of the 9:30 bar. The "10:00 price" is the open of the 10:00 bar. Yahoo's first-minute open can differ slightly from the official exchange opening print.

Ticker	9:30 open	10:00	% change
ORCL	136.70	138.875	+1.59%
NFLX	70.60	71.43	+1.18%
AMZN	256.30	258.39	+0.82%
TSLA	382.38	385.23	+0.75%
AAPL	331.79	332.51	+0.22%
GOOG	348.01	347.80	−0.06%
MSFT	528.23	527.82	−0.08%
AVGO	365.59	363.80	−0.49%
META	726.42	718.53	−1.09%
NVDA	233.875	230.80	−1.31%

Rose the most: ORCL, about +1.6%.
Fell the most: NVDA, about −1.3%.
Moved more than 0.6%: 6 of 10. Four rose (ORCL, NFLX, AMZN, TSLA) and two fell (NVDA, META).

Using the 9:59 bar's close as the 10:00 price changes nothing that matters. ORCL becomes +1.63% and NVDA −1.28%, and the same six stocks stay above 0.6%. The closest to the cutoff is TSLA at +0.75%.

Sources:

Yahoo Finance chart API (1-min bars), e.g. AAPL. The other nine tickers use the same URL with a different symbol.

Claude Opus 5.5 with Cavalry Right 26.8s

Oracle (ORCL) rose the most, up 1.63%. Nvidia (NVDA) fell the most, down 1.28%. Six of the ten moved more than 0.6% in either direction.

I measured each move from the open of the 09:30 ET 5 minute bar to the close of the 09:55 bar, which ends at 10:00 ET, on Friday, Oct 9, 2026.

Ticker	09:30 open to 10:00	Chg %
ORCL	136.70 to 138.93	+1.63%
NFLX	70.60 to 71.42	+1.16%
AMZN	256.30 to 258.42	+0.83%
TSLA	382.38 to 385.23	+0.75%
AAPL	331.79 to 332.51	+0.22%
GOOG	348.01 to 347.90	−0.03%
MSFT	528.235 to 527.91	−0.06%
AVGO	365.59 to 363.80	−0.49%
META	726.42 to 718.74	−1.06%
NVDA	233.875 to 230.89	−1.28%

Moved more than 0.6%: ORCL, NFLX, AMZN and TSLA went up; NVDA and META went down.
Under 0.6%: AAPL, GOOG, MSFT and AVGO. AVGO came closest at −0.49%.
Biggest swings inside the half hour: ORCL reached 141.10 in the 09:50 bar before falling back. NVDA kept sliding from its 233.89 opening high.

The opening price here is the first 5 minute bar's open. The exchange's official opening auction price could differ by a few cents.

Question 32Cross sectional

On Oct 12, 2026, which of these 12 stocks (AAPL, AMD, AMZN, AVGO, GOOG, META, MSFT, MU, NVDA, TSLA, ORCL, UBER) printed their regular session low within the first 15 minutes of trading (9:30 to 9:44 ET)? And which of the 12 fell furthest from its 9:30 opening print to its session low (give the %)?

Correct answer

Low set in first 15 minutes: 4: AAPL, META, MSFT, MU
Largest open to low decline: ORCL (−3.56%)

GPT 6.1 web search only Partial 93.5s

I found daily prices, but they don’t establish when the lows occurred. The sources also report slightly different opening prices, so I’m looking for a consistent intraday source to verify both parts of your question.

ORCL had the largest decline using the reported daily opening prices: $141.56 to a session low of $136.52, a 3.56% drop. Price data

\[
(141.56-136.52)/141.56 \times 100 = 3.56\%
\]

I couldn’t verify which stocks reached their lows during 9:30–9:44 ET: the accessible sources lacked minute-level timestamps. They also didn’t establish the exact 9:30 opening prints, so the ORCL result uses the daily reported open. I can’t reliably provide the first-15-minute list from that evidence.

GPT 6.1 with Cavalry Right 26.4s

AAPL, META, MSFT and MU recorded their regular session lows within 09:30 to 09:44 ET on October 12, 2026.

Ticker	Low minute, ET	Session low
AAPL	09:30	337.60
META	09:30	727.78
MSFT	09:32	535.7013
MU	09:34	978.50

ORCL fell furthest: 3.56%, from its 09:30 opening print of 141.56 to its session low of 136.5201 in the 12:51 ET minute.

136.5201 / 141.56 − 1 = −3.56%

Calculated using all 390 regular session 1 minute bars for each stock. Times identify the minute containing the low, not its exact second.

Claude Opus 5.5 web search only Right 112.8s

Low printed in the first 15 minutes (9:30–9:44 ET): 4 of the 12 did.

Ticker	Session low	Time (ET)
AAPL	337.60	9:30 (the opening minute)
META	~727.64–727.78	9:30 (the opening minute)
MSFT	535.70	9:32
MU	978.50	9:34

For META, Yahoo's daily bar shows 727.64 and its quote summary shows 727.78. The 9:30 timing holds either way.

MU only just counts: its lowest point after 9:45 was 979.00, 50 cents above the early low.

The other 8 hit their lows later in the day: AMD, AMZN, AVGO, GOOG, NVDA, TSLA, ORCL and UBER.

Biggest fall from the open to the session low: ORCL, −3.56%. It opened at 141.56 and bottomed at 136.52 around 12:51 ET.

Ticker	Open	Low	Fall from open
ORCL	141.56	136.52	−3.56%
MU	1002.45	978.50	−2.39%
AMD	599.93	586.54	−2.23%
NVDA	228.73	224.90	−1.67%
UBER	71.16	70.04	−1.57%
AVGO	359.43	354.22	−1.45%
TSLA	382.61	377.58	−1.31%
AMZN	262.50	259.27	−1.23%
GOOG	348.34	347.16	−0.34%
MSFT	537.53	535.70	−0.34%
AAPL	338.22	337.60	−0.18%
META	728.50	727.64	−0.12%

How I got this: I pulled Yahoo Finance's 1-minute and daily chart data for Oct 12. Opens and lows come from the daily bars, which use the official opening print. Each day's low matched the low found in the 1-minute data, within a cent or two.

The timing comes from scanning the 1-minute data for when the low printed. That scan was done by a text-reading tool, not by code, so the exact minutes could be slightly off. However, every stock's day low matched what that scan found, so which stocks bottomed early and the ranking should hold.

Sources:

Yahoo Finance chart API, e.g. ORCL, with the same endpoint used for each of the 12 tickers at 1-minute and daily intervals

Claude Opus 5.5 with Cavalry Right 34.5s

On Oct 12, 2026, 4 of the 12 printed their session low in the first 15 minutes: AAPL, META, MSFT and MU. All four lows came in the first 5 minute bar (09:30 to 09:35 ET). ORCL fell furthest from its open to its session low, down 3.56%: from 141.56 at the open to 136.5201 in the 12:50 ET bar.

These numbers come from regular session 5 minute bars. The "open" is the first bar's opening price, and each low is placed to its 5 minute bar.

Ticker	Session low, 5 min bar (ET)	Open to low
AAPL	337.60, 09:30	−0.17%
AMD	586.54, 11:30	−2.22%
AMZN	259.27, 15:55	−1.25%
AVGO	354.22, 15:15	−1.52%
GOOG	347.16, 13:20	−0.36%
META	727.78, 09:30	−0.03%
MSFT	535.70, 09:30	−0.44%
MU	978.50, 09:30	−2.39%
NVDA	224.92, 10:10	−1.59%
TSLA	377.58, 15:55	−1.31%
ORCL	136.52, 12:50	−3.56%
UBER	70.04, 10:00	−1.57%

ORCL: 136.5201 / 141.56 − 1 = −3.56%. It slid most of the day and bottomed around midday.
Runners up: MU at −2.39% (1002.41 down to 978.50, at the open) and AMD at −2.22% (599.86 down to 586.54).
Near misses for the first 15 minutes: UBER made its low in the 10:00 bar and NVDA in the 10:10 bar, both just after 09:44.

Question 33Cross sectional

On Oct 8, 2026, measure each of these ten mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX) from its 10:00 ET price to its 14:00 ET price. Which fell the most, which rose the most, and what were the two moves?

Correct answer

Biggest drop 10:00 to 14:00: ORCL (−3.19%)
Biggest gain 10:00 to 14:00: AAPL (+0.41%)

GPT 6.1 web search only Partial 107.1s

I found hourly returns that can be compounded for the four-hour window. Oracle has the largest decline among the stocks checked so far; I’m still checking Microsoft and GOOG before confirming the ranking.

Among the eight stocks I could verify, the largest moves from 10:00 to 14:00 ET on October 8, 2026 were:

Largest fall: ORCL, approximately −2.82%. Hourly data
Largest rise: NFLX, approximately +0.56%. Hourly data

These compound the four hourly returns. I couldn’t verify MSFT and GOOG for that window, so I can’t confirm the ranking across all ten.

GPT 6.1 with Cavalry Right 39.8s

ORCL fell the most, −3.19%; AAPL rose the most, +0.41%.

Using the 5 minute closes ending at 10:00 and 14:00 ET on Oct 8, 2026:

ORCL: $141.27 to $136.76, a $4.51 decline.
AAPL: $337.27 to $338.66, a $1.39 gain.

Measured as 14:00 price / 10:00 price − 1 across all ten stocks:

Ticker	Move
AAPL	+0.41%
MSFT	−2.29%
NVDA	−1.56%
AMZN	−1.66%
GOOG	−1.12%
META	−0.59%
AVGO	−1.55%
ORCL	−3.19%
TSLA	−0.33%
NFLX	+0.30%

Claude Opus 5.5 web search only Right 47.6s

On Oct 8, 2026 (Thursday), Oracle fell the most, down 3.12%, and Apple rose the most, up 0.40%. Only Apple and Netflix rose; the other eight fell.

ORCL: $141.28 → $136.87, down $4.41 (−3.12%)
AAPL: $337.30 → $338.66, up $1.36 (+0.40%)

The prices come from Yahoo Finance 5-minute bars. For each time I took the opening price of the bar that starts at that minute, so the 10:00:00 and 14:00:00 ET bars.

Ticker	10:00 ET	14:00 ET	Change	%
ORCL	141.28	136.87	−4.41	−3.12%
MSFT	532.23	519.91	−12.32	−2.31%
AMZN	258.68	254.43	−4.26	−1.64%
AVGO	367.26	361.48	−5.78	−1.57%
NVDA	234.05	230.39	−3.66	−1.56%
GOOG	348.11	344.18	−3.93	−1.13%
META	720.50	716.43	−4.07	−0.56%
TSLA	371.90	370.73	−1.17	−0.31%
NFLX	70.74	70.95	+0.21	+0.30%
AAPL	337.30	338.66	+1.36	+0.40%

I also checked with the 9:55 and 13:55 bar closing prices, and the result is the same: ORCL is still the biggest drop (about −3.2%) and AAPL the biggest gain (about +0.4%).

Sources:

Yahoo Finance chart API (AAPL, 5m, Oct 8 2026). The other nine tickers used the same URL with the ticker changed.

Claude Opus 5.5 with Cavalry Right 19.5s

Oracle fell the most: ORCL slid 3.19%. Apple rose the most: AAPL gained 0.41%. Both prices are 5 minute bar closes at 10:00 ET and 14:00 ET on Oct 8, 2026.

Biggest fall, ORCL: went from 141.27 to 136.76, down 4.51 (−3.19%). Its lowest point in the window was 134.66, about 4.7% below the 10:00 price.
Biggest gain, AAPL: went from 337.27 to 338.66, up 1.39 (+0.41%).

Only Apple and Netflix rose in this window. The other eight fell.

Ticker	10:00 to 14:00 ET	Chg %
AAPL	337.27 to 338.66	+0.41%
NFLX	70.74 to 70.95	+0.30%
TSLA	371.88 to 370.67	−0.33%
META	720.69 to 716.46	−0.59%
GOOG	348.16 to 344.25	−1.12%
AVGO	367.20 to 361.51	−1.55%
NVDA	234.02 to 230.37	−1.56%
AMZN	258.74 to 254.45	−1.66%
MSFT	532.15 to 519.98	−2.29%
ORCL	141.27 to 136.76	−3.19%

META's window had 47 of 48 bars. Its 10:00 and 14:00 prices were both there, so its move is still complete.

Question 34Cross sectional

Mid session drift on Oct 6, 2026: for NVDA, AMD, MU, AVGO, SMCI, HPE, SNDK, CRWV, NBIS, compute the % change from the 10:00 ET price to the 15:00 ET price. Which was strongest, which weakest, and how many of the nine were positive?

Correct answer

Strongest 10:00 to 15:00: NBIS (+2.38%)
Weakest 10:00 to 15:00: SMCI (−1.62%)
Positive 10:00 to 15:00: 5: AMD, AVGO, HPE, CRWV, NBIS

GPT 6.1 web search only Wrong 60.6s

The sources I’ve found show daily prices, but I haven’t verified the two intraday snapshots. Those timestamps are needed to calculate the drift and rank the nine stocks accurately.

I couldn’t verify the 10:00 ET and 15:00 ET prices for all nine stocks on October 6, 2026. The historical data I found provides daily OHLC prices, which cannot establish the requested intraday changes.

For each ticker, the calculation is:

% change = (15:00 price ÷ 10:00 price − 1) × 100

Without those 18 prices, I can’t reliably identify the strongest, weakest, or number positive. Share the two price snapshots for each ticker, and I can compute the full table and rankings.

GPT 6.1 with Cavalry Right 16.3s

NBIS was strongest (+2.38%), SMCI weakest (−1.62%), and 5 of 9 were positive from 10:00 to 15:00 ET on Oct 6, 2026.

Using the 5 minute closes ending at those exact times: change = (15:00 price / 10:00 price − 1) × 100.

Ticker	Change
NVDA	−0.76%
AMD	+1.87%
MU	−0.81%
AVGO	+1.97%
SMCI	−1.62%
HPE	+0.57%
SNDK	−0.90%
CRWV	+1.77%
NBIS	+2.38%

Claude Opus 5.5 web search only Right 53.4s

On Oct 6, 2026, between 10:00 and 15:00 ET, NBIS was strongest at +2.36% and SMCI was weakest at −1.59%. 5 of the 9 were positive.

Ticker	10:00 ET	15:00 ET	% change
NBIS	247.63	253.47	+2.36% (strongest)
AVGO	371.69	379.03	+1.98%
AMD	642.60	654.52	+1.85%
CRWV	91.44	93.01	+1.72%
HPE	70.49	70.86	+0.52%
NVDA	242.30	240.45	−0.77%
MU	1066.18	1057.13	−0.85%
SNDK	1683.46	1668.18	−0.91%
SMCI	44.45	43.75	−1.59% (weakest)

The positive five were NBIS, AVGO, AMD, CRWV and HPE. The negative four were NVDA, MU, SNDK and SMCI. Neoclouds (NBIS, CRWV), AVGO and AMD rose. Memory/storage names (MU, SNDK), SMCI and NVDA fell slightly.

How I got the prices: The data is Yahoo Finance 5-minute bars, in exchange time (America/New_York, EDT). For each time I used the opening price of the bar that starts then, which is the closest these bars get to the exact price at 10:00:00 and 15:00:00. These are Yahoo's consolidated prices, so a single exchange's tape could differ by a few cents. I also tried the close of the 9:55 and 14:55 bars instead, and the strongest, weakest and positive count stayed the same.

Sources:

Yahoo Finance chart API – NVDA. I used the same query for AMD, MU, AVGO, SMCI, HPE, SNDK, CRWV and NBIS.

Claude Opus 5.5 with Cavalry Right 27.1s

NBIS was strongest from 10:00 to 15:00 ET on Oct 6, 2026, up +2.38%. SMCI was weakest, down −1.62%. 5 of the 9 were positive: AMD, AVGO, HPE, CRWV and NBIS.

Each price is the close of the 5 minute bar that ended at that time, so the 09:55 bar for 10:00 and the 14:55 bar for 15:00.

Ticker	10:00 / 15:00	Change
NBIS	247.59 / 253.47	+2.38%
AVGO	371.69 / 379.00	+1.97%
AMD	642.58 / 654.60	+1.87%
CRWV	91.41 / 93.03	+1.77%
HPE	70.47 / 70.87	+0.57%
NVDA	242.30 / 240.45	−0.76%
MU	1066.16 / 1057.56	−0.81%
SNDK	1682.90 / 1667.84	−0.90%
SMCI	44.47 / 43.75	−1.62%

How the ends were worked out:

Strongest: 253.47 / 247.588 − 1 = +2.38% for NBIS.
Weakest: 43.745 / 44.465 − 1 = −1.62% for SMCI.

Through the middle of the session, the AI infrastructure names (NBIS, CRWV) and the big chip designers (AVGO, AMD) rose. Memory (MU, SNDK), NVDA and SMCI fell.

Question 35Cross sectional

Among these speculative tech names (IONQ, QBTS, RGTI, SOUN, BBAI, OKLO, RKLB, ASTS, LUNR, JOBY, ACHR, PLTR), which two had the highest relative volume on Oct 8, 2026 (volume / average of the prior 20 sessions)? Give the ratios and each one's Oct 8 close to close move.

Correct answer

Top 2 by relative volume (order not graded): PLTR (1.91x), ASTS (1.81x)
Their Oct 8 moves: PLTR +2.40%, ASTS −6.13%

GPT 6.1 web search only Partial 35.1s

PLTR and ASTS had the highest relative volume among the 12 names, using Stock Analysis’s daily data.

Rank	Stock	Oct. 8 volume	Prior 20-session average	Relative volume	Oct. 8 close-to-close move
1	PLTR	41,710,157	21,614,246.95	1.930×	+2.40% ($194.12 → $198.78)
2	ASTS	17,741,296	10,588,632.60	1.676×	−6.13% ($60.65 → $56.93)

Calculated as Oct. 8 volume ÷ average volume for Sept. 10–Oct. 7, 2026, excluding Oct. 8.

GPT 6.1 with Cavalry Right 24.6s

PLTR and ASTS had the highest relative volume among the 12 names on Oct 8, 2026.

Ticker	Relative volume	Close to close move
PLTR	1.908×	+2.40%
ASTS	1.811×	−6.13%

Using official daily bars through the Oct 8, 16:00 ET close:

PLTR: 41,865,400 / 21,942,820 = 1.908×.
ASTS: 19,180,400 / 10,591,475 = 1.811×.

The denominator averages the prior 20 sessions, Sept 10 to Oct 7, excluding Oct 8. Moves compare Oct 8 with Oct 7 daily closes.

Claude Opus 5.5 web search only Partial 65.4s

PLTR and ASTS had the highest relative volume on Oct 8, 2026.

Rank	Ticker	Oct 8 volume	Prior 20-session avg	Relative volume	Oct 8 close-to-close move
1	PLTR	41.71M	21.61M	1.93×	+2.40% (194.12 → 198.78)
2	ASTS	17.74M	10.59M	1.68×	−6.13% (60.65 → 56.93)

The other ten, from highest to lowest:

Ticker	Relative volume
BBAI	1.59×
OKLO	1.51×
JOBY	1.20×
ACHR	1.17×
LUNR	1.13×
RGTI	1.10×
QBTS	1.08×
RKLB	1.04×
IONQ	0.99×
SOUN	0.97×

On Oct 8, PLTR rose on about twice its normal volume, while most of the group fell, many by 3–6%. ASTS's heavy selling carried into Oct 9, when it fell another 10.5% on 53.9M shares.

The 20-session window runs from Sep 10 through Oct 7. All the daily data comes from one source, StockAnalysis.com's historical pages, and I didn't check it against a second one. Exact averages may differ slightly with other data vendors, but the gap between 2nd place (1.68×) and 3rd place (1.59×) is wide enough that the top two are unlikely to change.

Sources:

stockanalysis.com/stocks/pltr/history
stockanalysis.com/stocks/asts/history
The same /stocks/<ticker>/history/ pages for IONQ, QBTS, RGTI, SOUN, BBAI, OKLO, RKLB, LUNR, JOBY and ACHR

Claude Opus 5.5 with Cavalry Right 32.1s

PLTR and ASTS had the highest relative volume of the 12 on Oct 8, 2026. PLTR traded at 1.91x its 20 session average and ASTS at 1.81x. They moved in opposite directions: PLTR rose and ASTS fell.

Ticker	Oct 8 volume	Prior 20 session avg	RVOL	Close to close
PLTR	41,865,400	21,942,820	1.91x	+2.40% (194.12 to 198.78)
ASTS	19,180,400	10,591,475	1.81x	−6.13% (60.65 to 56.93)

PLTR: closed at a new high for the window, 198.78. It traded between 195.65 and 204.44 during the day.
ASTS: high volume on a down day. It gave back the 63.12 bounce from Oct 6 and closed at 56.93, the lowest close in the window.
Next closest: BBAI at about 1.58x (−3.59%) and OKLO at about 1.57x (−6.11%). JOBY was about 1.30x, and the rest were near or below 1.1x. IONQ and SOUN traded below their averages.

The figures come from official daily bars, using consolidated volume, as traded. The average covers the 20 sessions from Sep 10 to Oct 7, and the move compares the Oct 8 close with the Oct 7 close.

Question 36Cross sectional

Equal weight sector check from the Oct 2 close to the Oct 9 close, 2026: what was the average return of the energy names XOM, CVX, VLO, SU, KMI, CRGY, BKV, the average return of the consumer/defensive names KO, KDP, PFE, SBUX, CMG, MAT, LEVI, VFC, V, MA, VZ, T, and which single stock across both groups did best?

Correct answer

Energy basket average: +3.95%
Consumer/defensive basket average: +0.51%
Best single stock: BKV (+12.38%)

GPT 6.1 web search only Right 47.9s

From the Oct. 2 close to the Oct. 9 close, 2026:

Group	Equal-weight average return
Energy — 7 stocks	+3.95%
Consumer/defensive — 12 stocks	+0.51%

BKV performed best across both groups: +12.38%, rising from $21.57 to $24.24. BKV closing prices

I calculated each price return as (Oct. 9 close ÷ Oct. 2 close − 1) × 100, then averaged the unrounded returns within each group. Dividends are excluded; SU uses its U.S. listing in USD.

The individual returns used were:

Energy	Return	Consumer/defensive	Return
XOM	+3.01%	KO	+2.80%
CVX	+2.56%	KDP	+4.58%
VLO	+6.76%	PFE	+1.73%
SU	+3.84%	SBUX	−4.18%
KMI	+4.57%	CMG	−2.38%
CRGY	−5.45%	MAT	+9.30%
BKV	+12.38%	LEVI	−5.89%
		VFC	+4.68%
		V	+6.87%
		MA	+6.68%
		VZ	−9.30%
		T	−8.72%

GPT 6.1 with Cavalry Right 25.3s

From the October 2 to October 9, 2026 daily closes, both at 16:00 ET:

Group	Equal weight average return
Energy, all 7 names	+3.95%
Consumer/defensive, all 12 names	+0.51%

BKV common stock performed best across both groups: +12.38%, rising from $21.57 to $24.24 at those respective daily closes.

Method: average of each stock’s return, calculated as October 9 close / October 2 close − 1. These are as traded price returns, excluding dividends, not total returns.

Claude Opus 5.5 web search only Right 35.5s

I used each stock's closing price on Oct 2 and Oct 9, 2026, from StockAnalysis.com history pages. MA, VZ and T went ex-dividend during the week, so the returns below use dividend-adjusted closes (total return). On price alone the consumer average is +0.51% instead of +0.73%.

Energy, equal-weight average: +3.95%

Ticker	Oct 2	Oct 9	Return
XOM	164.01	168.94	+3.01%
CVX	206.69	211.98	+2.56%
VLO	406.30	433.75	+6.76%
SU	69.56	72.23	+3.84%
KMI	31.07	32.49	+4.57%
CRGY	13.39	12.66	−5.45%
BKV	21.57	24.24	+12.38%

Consumer/defensive, equal-weight average: +0.73% (+0.51% on price only)

Ticker	Oct 2	Oct 9	Return
KO	85.65	88.05	+2.80%
KDP	30.37	31.76	+4.58%
PFE	27.80	28.28	+1.73%
SBUX	94.71	90.75	−4.18%
CMG	32.36	31.59	−2.38%
MAT	15.27	16.69	+9.30%
LEVI	19.87	18.70	−5.89%
VFC	14.33	15.00	+4.68%
V	360.66	385.45	+6.87%
MA	551.42 adj (552.26 close)	589.14	+6.84% (+6.68% price)
VZ	45.22 adj (45.92 close)	41.65	−7.89% (−9.30% price)
T	24.03 adj (24.30 close)	22.18	−7.70% (−8.72% price)

Best single stock: BKV, up 12.38% (21.57 → 24.24). MAT was next at +9.30%. The weakest were VZ (−7.9%) and T (−7.7%).

Energy beat consumer/defensive by about 3.2 percentage points that week.

Sources:

StockAnalysis.com price history (same /stocks/<ticker>/history/ page for each ticker)

Claude Opus 5.5 with Cavalry Right 49.9s

BKV did best of all 19 names, up 12.38%. From the October 2 close to the October 9 close, the equal weight energy group returned +3.95% and the consumer/defensive group returned +0.51%.

All figures use official daily closes. Returns are price only and leave out dividends.

Energy (7 names): average +3.95%

Ticker	Oct 2 to Oct 9 close	Return
XOM	164.01 to 168.94	+3.01%
CVX	206.69 to 211.98	+2.56%
VLO	406.30 to 433.75	+6.76%
SU	69.56 to 72.23	+3.84%
KMI	31.07 to 32.49	+4.57%
CRGY	13.39 to 12.66	−5.45%
BKV	21.57 to 24.24	+12.38%

Consumer/defensive (12 names): average +0.51%

Ticker	Oct 2 to Oct 9 close	Return
KO	85.65 to 88.05	+2.80%
KDP	30.37 to 31.76	+4.58%
PFE	27.80 to 28.28	+1.73%
SBUX	94.71 to 90.75	−4.18%
CMG	32.36 to 31.59	−2.38%
MAT	15.27 to 16.69	+9.30%
LEVI	19.87 to 18.70	−5.89%
VFC	14.33 to 15.00	+4.68%
V	360.66 to 385.45	+6.87%
MA	552.26 to 589.14	+6.68%
VZ	45.92 to 41.65	−9.30%
T	24.30 to 22.18	−8.72%

What drove the averages

Best stock: BKV, +12.38%. Most of its gain came on October 7, when it closed at 23.68, up from 22.05 the day before. MAT was second at +9.30%.
Worst stock: VZ, −9.30%. T fell 8.72%.
Why the consumer group lagged: VZ and T both dropped sharply on October 9 alone, on very heavy volume. Without them, the other 10 names averaged +2.48%.
Energy: CRGY was the only decliner in the group.

Question 37Cross sectional

Max closing drawdown (peak close to subsequent trough close) between Sep 1 and Oct 9, 2026: which of NVDA, AMD, MU, AVGO, INTC, SMCI, DELL, HPE, SNDK, CRWV, NBIS had the deepest, which the shallowest, and what were the two figures?

Correct answer

Deepest drawdown: CRWV (−19.98%)
Shallowest drawdown: AMD (−6.36%)

GPT 6.1 web search only Right 36.3s

Among the 11 stocks, using daily Close prices from September 1 through October 9, 2026, inclusive:

	Stock	Max closing drawdown	Peak close → subsequent trough close
Deepest	CRWV	−19.98%	$99.83 (Sep 8) → $79.88 (Sep 17)
Shallowest	AMD	−6.36%	$649.42 (Oct 6) → $608.10 (Oct 9)

Calculated as (trough close / preceding peak close − 1) × 100, using CRWV historical closes and AMD historical closes.

GPT 6.1 with Cavalry Right 24.6s

For September 1 through October 9, 2026, inclusive:

Deepest: CRWV common stock, −19.98%, from $99.83 on September 8 to $79.88 on September 17.
Shallowest: AMD common stock, −6.36%, from $649.42 on October 6 to $608.10 on October 9.

All prices are daily bar closes at 16:00 ET, as traded, without split or dividend adjustments. Calculated as subsequent trough close / preceding peak close − 1 across all eleven stocks.

Claude Opus 5.5 web search only Right 51.8s

Deepest: CRWV, at −19.98%. It closed at $99.83 on Sep 8 and fell to $79.88 on Sep 17.

Shallowest: AMD, at −6.36%. It closed at $649.42 on Oct 6 and fell to $608.10 on Oct 9.

Full ranking of the largest close-to-close drawdown in each window:

Ticker	Max DD	Peak → Trough (closes)
CRWV	−19.98%	99.83 (Sep 8) → 79.88 (Sep 17)
INTC	−17.81%	127.39 (Sep 24) → 104.70 (Oct 9)
SNDK	−16.17%	1887.04 (Sep 22) → 1581.82 (Oct 9)
NBIS	−14.97%	243.88 (Sep 8) → 207.37 (Sep 15)
SMCI	−11.48%	40.26 (Sep 8) → 35.64 (Sep 15)
HPE	−10.76%	62.09 (Sep 11) → 55.41 (Sep 14)
MU	−10.09%	1027.77 (Sep 9) → 924.03 (Sep 14)
DELL	−8.90%	588.40 (Sep 17) → 536.02 (Sep 24)
NVDA	−8.42%	230.36 (Sep 4) → 210.96 (Sep 14)
AVGO	−8.23%	369.68 (Sep 1) → 339.27 (Sep 15)
AMD	−6.36%	649.42 (Oct 6) → 608.10 (Oct 9)

How I got these:

The daily closes come from Yahoo Finance's chart API. They're unadjusted closes, Sep 1 to Oct 9, 28 trading days.
A summarizing tool extracted the closes from each page. I checked NVDA against Yahoo's own history table and every close matched. I didn't cross-check the other ten tickers.
I calculated the drawdowns by hand, not with a script.
The gap between first and last is large, so small errors wouldn't change who's deepest or shallowest. Spot-check the CRWV and AMD figures before quoting them exactly.
NVDA paid a dividend in early September. Using adjusted closes would shift its figure slightly but wouldn't change the ranking.

Sources:

Claude Opus 5.5 with Cavalry Right 47.8s

CRWV had the deepest drawdown at −19.98%. AMD had the shallowest at −6.36%. Both use official daily closes, Sep 1 to Oct 9, 2026.

CRWV: it closed at a peak of 99.83 on Sep 8 and fell to 79.88 on Sep 17. That is 79.88 / 99.83 − 1 = −19.98%. It never closed back above that peak in the window.
AMD: it closed at a peak of 649.42 on Oct 6 and fell to 608.10 on Oct 9. That is 608.10 / 649.42 − 1 = −6.36%. Its only other dip was smaller, 521.10 on Sep 9 down to 493.41 on Sep 14 (−5.31%).

All eleven, deepest first:

Ticker	Max DD	Peak to trough close
CRWV	−19.98%	Sep 8 to Sep 17
INTC	−17.81%	Sep 24 to Oct 9
SNDK	−16.17%	Sep 22 to Oct 9
NBIS	−14.97%	Sep 8 to Sep 15
SMCI	−11.48%	Sep 8 to Sep 15
HPE	−10.76%	Sep 11 to Sep 14
MU	−10.09%	Sep 9 to Sep 14
DELL	−8.90%	Sep 17 to Sep 24
NVDA	−8.42%	Sep 4 to Sep 14
AVGO	−8.23%	Sep 1 to Sep 15
AMD	−6.36%	Oct 6 to Oct 9

INTC and SNDK were still at their troughs on Oct 9, so their drawdowns may not have finished.

Question 38Cross sectional

Over the five sessions Oct 6 to Oct 12, 2026, how many of these 20 large caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, TSLA, AMD, MU, INTC, PLTR, ORCL, KO, PFE, XOM, CVX, V, MA, GS, UBER) closed higher on at least four of the five days? Name them. Which name(s) had the most down days, and how many?

Correct answer

Up on >= 4 of 5 sessions: 9: AAPL, MSFT, GOOG, PLTR, PFE, XOM, CVX, V, MA
Most down days: 4 of 5 down: NVDA, META, AMD, MU, INTC

GPT 6.1 web search only Right 42.6s

9 of the 20 stocks closed higher on at least four of the five sessions:

Up days	Names
5	V, MA
4	AAPL, MSFT, GOOG, PLTR, PFE, XOM, CVX

The most down days was 4, shared by NVDA, META, AMD, MU, and INTC.

Counted close-to-close changes on Oct. 6, 7, 8, 9, and 12, 2026, using Oct. 5’s close as the baseline for Oct. 6.

GPT 6.1 with Cavalry Wrong 22.7s

[no answer]

Claude Opus 5.5 web search only Right 45.4s

The Yahoo chart API works, and the two AAPL sources match. Now I'll fetch the other 19 tickers.

9 of the 20 closed higher on at least four of the five sessions (Tue Oct 6 – Mon Oct 12, 2026):

Ticker	Up days	Down day(s)
V	5/5	none
MA	5/5	none
AAPL	4/5	Oct 9
MSFT	4/5	Oct 8
GOOG	4/5	Oct 8
PLTR	4/5	Oct 12 (209.05 → 209.00)
PFE	4/5	Oct 8
XOM	4/5	Oct 7
CVX	4/5	Oct 7

Most down days: 4 of 5, shared by five names:

NVDA: up only Oct 6, then four straight declines (238.90 → 226.32)
META: down four days in a row, then up about 3.4% on Oct 12 (742.96)
AMD: up Oct 6, then four straight declines (649.42 → 594.24)
MU: up only Oct 7 (989.04 at the end, down from 1063.96)
INTC: up only Oct 7 (116.19 → 101.35)

None of the 20 fell on all five days.

The other six: AMZN and KO were up on 3 days. TSLA, ORCL, GS and UBER were up on 2 days and down on 3.

How I counted: A day is "up" if the close beat the previous session's close. Oct 6 is compared with the Oct 5 close. Oct 12 was a normal trading day (Columbus Day doesn't close the stock market), so the five sessions were Oct 6, 7, 8, 9 and 12. The closing prices come from Yahoo Finance's daily chart data, and the AAPL numbers matched Yahoo's history page. No up/down call was close enough for rounding to matter. The smallest move was PLTR's 0.05 drop on Oct 12.

Sources:

Yahoo Finance chart API (e.g. AAPL), same query for each ticker
Yahoo Finance AAPL history

Claude Opus 5.5 with Cavalry Right 37.6s

Nine of the 20 closed higher on at least four of the five sessions: V, MA, AAPL, MSFT, GOOG, PLTR, PFE, XOM and CVX. V and MA rose on all five days.

Most down days: 4 of 5, shared by five names: NVDA, META, AMD, MU and INTC. No stock fell on all five days.

I counted from official daily closes for the sessions of Oct 6, 7, 8, 9 and 12, each compared with the close the day before. That means Oct 6 is measured against the Oct 5 close.

Up days / 5	Names
5	V, MA
4	AAPL, MSFT, GOOG, PLTR, PFE, XOM, CVX
3	AMZN, KO
2	TSLA, ORCL, GS, UBER
1	NVDA, META, AMD, MU, INTC

Daily moves for the names with the most down days:

NVDA: up on Oct 6, then down four sessions in a row. It went from 238.90 (Oct 5 close) to 226.32 (Oct 12).
AMD: up on Oct 6, then down four in a row, from 631.75 to 594.24.
INTC: up only on Oct 7, ending at 101.35 from 116.19.
MU: up only on Oct 7, ending at 989.04 from 1063.96.
META: down four sessions in a row, then up 3.4% on Oct 12 to 742.96.

The Oct 12 closes are provisional. Two of them changed by very little: UBER (71.51 to 71.50) and PLTR (209.05 to 209.00). Neither would change the answer if the settled close came out the other way.

Question 39Cross sectional

On Oct 7, 2026, what was SPY's move from its 9:30 open to its 10:00 ET price, and which of these ten names (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX) moved more than 0.25% in the OPPOSITE direction to SPY over the same 9:30 to 10:00 window?

Correct answer

SPY 9:30 → 10:00: −0.13%
Moved >0.25% opposite to SPY: 3: NVDA, AMZN, ORCL

GPT 6.1 web search only Wrong 39.3s

I couldn’t verify the 10:00 ET intraday prices, so I can’t reliably calculate SPY’s move or identify the qualifying stocks.

SPY’s Oct. 7, 2026 opening price was $775.77, but the available historical data provides daily prices only.

The required calculation is 100 × (10:00 price / 9:30 open − 1). Qualifying names must have the opposite sign to SPY and an absolute move strictly greater than 0.25%. A minute-bar export for SPY and the ten names would resolve this.

GPT 6.1 with Cavalry Right 20.2s

SPY fell 0.127% (−$0.985) on October 7, 2026, from $775.77 at the 9:30 ET open to $774.785 at 10:00 ET.

NVDA, AMZN and ORCL moved more than 0.25% in the opposite direction:

Ticker	9:30 to 10:00 ET move
NVDA	+0.446%
AMZN	+0.523%
ORCL	+0.638%

Calculated using each instrument’s 9:30 ET 1 minute bar open and the 1 minute close ending at 10:00 ET. None of the other seven names qualified.

Claude Opus 5.5 web search only Wrong 36.7s

I couldn't find the minute-level prices needed to answer this, so I can't give you SPY's 9:30–10:00 ET move or say which of the ten stocks moved against it. I didn't want to guess and risk naming the wrong stocks.

What I did find for SPY and the market on Oct 7, 2026:

Daily SPY bar: open 775.77, high 779.10, low 773.61, close 777.22. The close was down 0.24% from the previous day but finished above that day's open.
The open: Yahoo Finance's live blog said stocks "fell at Wednesday's open." The S&P 500 opened about 0.5% lower, the Nasdaq 0.7% lower and the Dow 0.8% lower, all coming off record closes. TheStreet put the early S&P drop at −0.42%.
What drove it: oil and Treasury yields were rising. Around 10:14 ET the 10-year yield reached 5.36%, its highest since April 2002.
No 10:00 price: none of the sources gave a SPY price at 10:00, and none said how any of AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA or NFLX moved in the first half hour.

The "opened down 0.5%" figure is the open compared with Tuesday's close. It doesn't tell you the move from 9:30 to 10:00, which is what your question needs.

Where to get the data: you need 1-minute or 5-minute bars for all 11 tickers. Alpaca, Databento, IBKR's historical data, or a TradingView/thinkorswim chart replay for Oct 7 would work. Compute (close of the 9:59 bar − open of the 9:30 bar) / open of the 9:30 bar. Then flag any stock whose sign is opposite to SPY's and whose absolute move is above 0.25%. If you export the bars to CSV, I can write a script that does the calculation and screening.

Sources:

Claude Opus 5.5 with Cavalry Right 27.0s

On Oct 7, 2026, SPY fell 0.13% from 09:30 to 10:00 ET. Three names went the other way by more than 0.25%: NVDA, AMZN and ORCL.

SPY: it opened at 775.77 in the 09:30 5 minute bar and closed at 774.785 in the 09:55 bar, which ends at 10:00. That is 774.785 / 775.77 − 1 = −0.13%. Because SPY fell, the test is which names rose more than 0.25%.

Each move runs from the 09:30 5 minute open to the 09:55 5 minute close, ending 10:00 ET.

Ticker	09:30 → 10:00	Chg %
ORCL	142.54 → 143.45	+0.64%
AMZN	254.07 → 255.40	+0.52%
NVDA	237.675 → 238.735	+0.45%
NFLX	68.80 → 68.77	−0.04%
GOOG	343.63 → 343.28	−0.10%
TSLA	378.35 → 377.64	−0.19%
AVGO	372.48 → 371.615	−0.23%
MSFT	530.725 → 527.71	−0.57%
AAPL	337.675 → 334.79	−0.86%
META	737.97 → 723.32	−1.98%

Rose against SPY by more than 0.25%: ORCL, AMZN and NVDA.
Fell with SPY: the other seven. META led the drop at −1.98%. AVGO came closest to the 0.25% line at −0.23%, but it fell the same way as SPY, so it does not count.

Question 40Cross sectional

On Oct 7, 2026, which three of these 15 stocks (AAPL, AMD, AMZN, AVGO, BB, CLF, CRWV, DNA, MU, NBIS, NVDA, OPEN, QBTS, SECZ, TSLA) had the largest rebound from their regular session low to their close (close / session low minus 1)? Give the three figures, and say which stock closed exactly at or within 0.1% of its session low.

Correct answer

Largest rebound low → close: MU (+7.56%), OPEN (+7.04%), DNA (+6.01%)
Closed within 0.1% of session low: 0

GPT 6.1 web search only Partial 53.3s

For October 7, 2026, the three largest rebounds among the 15 stocks were:

Rank	Stock	Session low	Close	Rebound `(close / low − 1) × 100`
1	MU	$1,011.42	$1,088.00	7.5715%
2	OPEN	$2.13	$2.27	6.5728%
3	DNA	$10.81	$11.47	6.1055%

None closed exactly at or within 0.1% of its session low. The closest was BB: $8.77 close versus $8.73 low, or 0.4582% above its low.

GPT 6.1 with Cavalry Partial 20.3s

For Oct 7, 2026, using regular session daily bars ending at 16:00 ET, the largest rebounds were:

Ticker	Close / session low − 1	Rebound
MU	1088.00 / 1011.42 − 1	7.57%
OPEN	2.27 / 2.13 − 1	6.57%
DNA	11.47 / 10.81 − 1	6.11%

None of the 15 stocks closed exactly at or within 0.1% of its session low. BB was closest: 8.77 / 8.73 − 1 = 0.4582%.

Claude Opus 5.5 web search only Partial 38.3s

I took each stock's Oct 7, 2026 numbers from its Yahoo Finance daily history page.

Largest rebounds from session low to close:

Rank	Stock	Low	Close	Rebound
1	MU	1,011.42	1,088.00	+7.57%
2	OPEN	2.13	2.27	+6.57%
3	DNA	10.81	11.47	+6.11%

The rest, for comparison: AMZN 2.67%, AMD 2.01%, AVGO 2.00%, CLF 1.77%, QBTS 1.60%, NBIS 1.33%, AAPL 1.17%, SECZ 1.15%, CRWV 1.07%, TSLA 0.90%, NVDA 0.46%, BB 0.46%.

Closing at or within 0.1% of the session low: None of the 15 stocks did. BB came closest, closing at 8.77 against a low of 8.73 (+0.458%). NVDA was nearly the same, at 237.47 against 236.38 (+0.461%). Neither is within 0.1%. If you're expecting a stock to fall inside that range, your data source may differ from Yahoo's. BB is also the only stock in the list priced in cents, so a one-cent difference in the low would shift its figure by about 0.11%.

Sources: Yahoo Finance history pages, e.g. AAPL, MU, OPEN, DNA, BB, NVDA. The other tickers use the same URL pattern: finance.yahoo.com/quote/TICKER/history/.

Claude Opus 5.5 with Cavalry Partial 19.8s

Top three rebounds from the session low to the close on Oct 7, 2026 were MU, OPEN and DNA. None of the 15 stocks closed at or within 0.1% of its session low.

These figures use the official daily bars (regular session, settled):

Ticker	Low → Close	Rebound
MU	1011.42 → 1088.00	+7.57%
OPEN	2.13 → 2.27	+6.57%
DNA	10.81 → 11.47	+6.11%

For example, MU: 1088.00 / 1011.42 − 1 = 7.57%.

Closest to the low:

BB closed at 8.77 against a low of 8.73, a gap of +0.46%.
NVDA closed at 237.47 against a low of 236.38, also +0.46%.

BB was the closest, but both are well above the 0.1% mark. BB also fell from a 9.34 open, so it finished close to its low for the day.

The other stocks rebounded between 0.90% (TSLA) and 2.67% (AMZN).

Question 41Cross sectional

Rank these ten mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX) by their Oct 12, 2026 regular session range measured on one minute data as (session high minus session low) / 9:30 opening price. Which two had the widest range, and what was Netflix's range on the same measure?

Correct answer

Widest two: ORCL (+3.56%), META (+3.36%)
NFLX range: +1.39%

GPT 6.1 web search only Right 51.8s

The sources I’ve found provide daily OHLC values, but I haven’t been able to retrieve the one-minute bars. I’ll calculate a daily-data proxy and label it clearly; it won’t verify the requested one-minute ranking.

I couldn’t retrieve the one-minute bars, so I can’t verify the exact ranking requested. Using October 12 daily OHLC as a proxy gives:

Rank	Stock	(High − Low) / Open
1	ORCL	3.560%
2	META	3.377%
3	AVGO	1.800%
4	NVDA	1.731%
5	AMZN	1.688%
6	GOOG	1.579%
7	AAPL	1.487%
8	NFLX	1.388%
9	TSLA	1.338%
10	MSFT	1.310%

On this daily-data proxy, Oracle and Meta had the widest ranges. Netflix’s calculation is (71.55 − 70.56) / 71.33 = 0.013879, or 1.388%.

These values still require confirmation using the 9:30–15:59 ET one-minute bars and the 9:30 bar’s opening price.

GPT 6.1 with Cavalry Right 37.9s

ORCL had the widest range at 3.5603%, followed by META at 3.3600%. NFLX measured 1.2211%, but its one minute data stops at 15:48 ET, so that is not a verified full session range.

Oct 12, 2026, regular session 09:30 to 16:00 ET. Range = (highest one minute high − lowest one minute low) / 09:30 bar opening price.

Rank	Ticker	Range
1	ORCL	3.5603%
2	META	3.3600%
3	AVGO	1.7987%
4	NVDA	1.7238%
5	AMZN	1.6873%
6	GOOG	1.5786%
7	AAPL	1.4875%
8	TSLA	1.3134%
9	MSFT	1.3081%
Provisional 10	NFLX	1.2211%

NFLX: (71.55 − 70.68) / 71.25 = 1.2211%. Its high occurred in the 09:34 bar, low in the 14:27 bar, and opening price in the 09:30 bar, all ET. The final eleven minutes are missing; web daily data cannot establish the requested one minute measure.

Claude Opus 5.5 web search only Right 59.1s

Data is there. To check the small model's aggregation, I'll pull both the 1-minute series and the daily bar for each ticker.

Daily bars give a clear picture. Now I'll check the 1-minute numbers, especially the 9:30 bar opens, since those can differ from the official open.

Oracle (ORCL) and Meta (META) had the widest ranges on Oct 12, 2026. Netflix's range was about 1.39%.

Rank	Ticker	Range	Source
1	ORCL	3.56% (141.56 → 136.52)	1-min
2	META	3.36% (727.78–752.24, 9:30 open 727.97)	1-min
3	AVGO	1.80%	1-min
4	NVDA	~1.73%	daily bar
5	AMZN	~1.69%	daily bar
6	GOOG	~1.58%	daily bar
7	AAPL	~1.49%	daily bar
8	NFLX	1.39% (high 71.55, low 70.56, 9:30 open 71.25)	1-min
9	TSLA	~1.34%	daily bar
10	MSFT	~1.31%	daily bar

The numbers come from Yahoo Finance's chart endpoint. I couldn't run the calculation myself: the fetch tool returns a small model's summary of each page, so the 1-minute highs and lows are its aggregates.

Full 1-minute check: I did this for ORCL, META, AVGO and NFLX. Their highs and lows matched the daily bars to within a cent.
Daily bars for the other six: NVDA, AMZN, GOOG, AAPL, TSLA and MSFT use the official daily open, not the first 1-minute bar's open. The two can differ a little: Netflix opened at 71.33 officially versus 71.25 on the first 1-minute bar. That only matters for their order among themselves. All six are below 1.8%, far under Meta's 3.36%, so the top two don't change.
Oracle: it opened at its high for the day and fell from there.

Sources:

Yahoo Finance chart API – NFLX, with the same endpoint used for the other nine tickers (1m and 1d intervals)

Claude Opus 5.5 with Cavalry Right 37.3s

Oracle (ORCL) had the widest range at 3.56%, and Meta (META) was second at 3.36%. Netflix (NFLX) had the narrowest at 1.22%, but its bars stop early (see the last note).

All ten are ranked below using 1 minute bars for Oct 12, 2026, 09:30 to 16:00 ET. Range % = (session high minus session low) / open of the 09:30 bar.

Ticker	Range %	Open, high, low
ORCL	3.56%	141.56, 141.56, 136.5201
META	3.36%	727.97, 752.24, 727.78
AVGO	1.80%	359.705, 360.6899, 354.22
NVDA	1.72%	228.56, 228.86, 224.92
AMZN	1.69%	262.545, 263.70, 259.27
GOOG	1.58%	348.41, 352.66, 347.1601
AAPL	1.49%	338.16, 342.63, 337.60
TSLA	1.31%	382.605, 382.605, 377.58
MSFT	1.31%	538.07, 542.74, 535.7013
NFLX	1.22%	71.25, 71.55, 70.68

ORCL: the day's high was the opening print, and it fell steadily to a low of 136.5201 in the 13:51 ET bar. That is (141.56 − 136.5201) / 141.56 = 3.56%.
META: it opened at its low, 727.78 in the first minute, and reached 752.24 in the 14:45 ET bar. That is (752.24 − 727.78) / 727.97 = 3.36%.
NFLX: 71.55 high in the 09:34 bar and 70.68 low in the 15:07 bar. That is (71.55 − 70.68) / 71.25 = 1.22%.
TSLA and MSFT are nearly tied: 1.313% against 1.308%.

Caveats:

Netflix's data is incomplete. The NFLX 1 minute series ends with the 15:48 ET bar, so the last 11 minutes are missing. A new high or low in that window would change its figure, though only a move outside 70.68 to 71.55 would matter.
Netflix prices are split adjusted (around $71), so they won't match pre-split quotes. The percentage is unaffected.

Question 42Cross sectional

Compare the morning and afternoon on Oct 7, 2026 for these ten mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, AVGO, ORCL, TSLA, NFLX): which was weakest and which strongest from the 9:30 open to 12:00 ET, and which had the largest move (either direction) from 12:00 ET to the close, and how big was it?

Correct answer

Weakest open → 12:00: META (−1.97%)
Strongest open → 12:00: AMZN (+1.74%)
Largest 12:00 → close move: GOOG
That move: +1.16%

GPT 6.1 web search only Wrong 95.2s

I found a midday report, but it measures changes from the previous close and uses quotes around 12:02 ET. Your comparison needs returns from the 9:30 open and prices at noon, so I’m checking for intraday data to establish the rankings.

I couldn’t verify the exact rankings: the accessible sources lacked 12:00 ET prices for all ten stocks.

The midday report uses quotes around 12:02 ET and changes from the previous close, which don’t establish your open-to-noon comparison.

To answer accurately, I need intraday data for October 7 and would rank:

Morning: $100 \times (P_{12:00}/P_{9:30}-1)$.
Afternoon: $100 \times (P_{16:00}/P_{12:00}-1)$, selecting the largest absolute percentage move.

I don’t have enough verified data to name the winners without guessing.

GPT 6.1 with Cavalry Right 31.2s

META was weakest in the morning, AMZN strongest, and GOOG had the largest afternoon move, ranked by percentage change on October 7, 2026.

Comparison	Ticker	Move
Weakest, 09:30 to 12:00 ET	META	−1.97%
Strongest, 09:30 to 12:00 ET	AMZN	+1.74%
Largest absolute move, 12:00 to 16:00 ET	GOOG	+1.16%

Using 5 minute bars:

META: $737.9675 at the 09:30 open to $723.44 at 12:00.
AMZN: $254.07 at the 09:30 open to $258.4999 at 12:00.
GOOG: $343.255 at 12:00 to $347.24 at the 16:00 close, up $3.985.

Noon means the bar close ending at 12:00. AAPL’s corresponding bar was missing, so its comparison used the latest available close at 11:55 ET.

Claude Opus 5.5 web search only Right 42.5s

On Oct 7, 2026, META was weakest from the open to noon (−1.96%) and AMZN was strongest (+1.64%). From noon to the close, GOOG had the biggest move: up about 1.15% (+$3.96, from $343.28 to $347.24).

Ticker	9:30 open → 12:00	12:00 → close
AAPL	337.67 → 334.85 (−0.84%)	→ 336.62 (+0.53%)
MSFT	530.72 → 527.83 (−0.55%)	→ 529.54 (+0.32%)
NVDA	237.68 → 237.20 (−0.20%)	→ 237.36 (+0.07%)
AMZN	254.07 → 258.25 (+1.64%, strongest)	→ 259.88 (+0.63%)
GOOG	343.63 → 343.28 (−0.10%)	→ 347.24 (+1.15%, largest)
META	737.97 → 723.48 (−1.96%, weakest)	→ 721.15 (−0.32%)
AVGO	372.48 → 374.90 (+0.65%)	→ 376.27 (+0.37%)
ORCL	142.54 → 144.43 (+1.33%)	→ 143.56 (−0.60%)
TSLA	378.35 → 375.89 (−0.65%)	→ 377.62 (+0.46%)
NFLX	68.80 → 69.12 (+0.46%)	→ 69.69 (+0.83%)

Morning: Most of META's drop came in the first 30 minutes, when it fell from about $738 to $723. ORCL was the second-strongest stock in the morning (+1.33%), but it was the biggest afternoon loser (−0.60%).
Afternoon: GOOG climbed fairly steadily through the afternoon. NFLX was a distant second at +0.83%.

About the data: The prices come from Yahoo Finance 30-minute bars for that day. The 12:00 price is the open of the 12:00 bar. The "close" is the last price of the 3:30–4:00 bar, which can differ by a few cents from the official closing price. That wouldn't change any of the rankings, because the gaps between first and second place are large.

Sources:

Yahoo Finance chart API – AAPL (I used the same URL for each of the other nine tickers)

Claude Opus 5.5 with Cavalry Right 29.1s

On Oct 7, 2026, META was the weakest stock in the morning and AMZN the strongest. In the afternoon GOOG had the biggest move of the ten, up 1.16%.

Morning, 09:30 open to 12:00 ET: META fell 1.97%, from 737.97 to 723.44. AMZN rose 1.74%, from 254.07 to 258.50.
Afternoon, 12:00 ET to the close: GOOG rose 1.16%, from 343.26 to 347.24, a gain of $3.99. That move was up. Next were NFLX, up 0.85%, and ORCL, down 0.63%. ORCL gave back part of its +1.35% morning.

Ticker	09:30 to 12:00	12:00 to close
AAPL	−0.66%	+0.35%
MSFT	−0.55%	+0.33%
NVDA	−0.20%	+0.06%
AMZN	+1.74%	+0.53%
GOOG	−0.11%	+1.16%
META	−1.97%	−0.32%
AVGO	+0.66%	+0.35%
ORCL	+1.35%	−0.63%
TSLA	−0.66%	+0.47%
NFLX	+0.44%	+0.85%

These numbers come from 30 minute bars for regular hours only. The "open" is the first bar's open at 09:30 ET. The 12:00 price is the close of the 11:30 to 12:00 bar. The "close" is the close of the 15:30 to 16:00 bar, which can be slightly different from the official closing auction price.

Question 43Event driven

Oracle reported fiscal Q1 2027 results after the close on Sep 10, 2026. What non GAAP EPS and total revenue did it report? Then, for the Sep 11 session: ORCL's opening gap vs the Sep 10 close, the high and low of the first 30 minutes, the time of the session high, and the % change from the open to the close.

Correct answer

Non GAAP EPS: $1.92 (GAAP $1.56)
Total revenue: $19.3B (+30% y/y)
ORCL opening gap vs prior close: +7.51%
ORCL high of the first 30 minutes: $166.00
ORCL low of the first 30 minutes: $154.35
Time of ORCL session high (5 minute bar start): 09:30 ET
ORCL open → close: −8.62%

GPT 6.1 web search only Partial 56.6s

Oracle reported non-GAAP EPS of $1.92 and revenue of $19.345 billion. The daily prices show a 7.51% opening gap and an 8.61% decline from open to close. I’m still checking intraday data for the first 30-minute range and the time of the session high.

Oracle reported non-GAAP EPS of $1.92 and total revenue of $19.345 billion ($19.3 billion rounded) for fiscal Q1 2027. Oracle earnings release

For September 11, 2026, using regular-session, unadjusted prices:

Metric	Result
Opening gap versus September 10 close	+$11.49 / +7.51% — $164.43 open versus $152.94 prior close
First 30 minutes’ high, 9:30–10:00 a.m. EDT	$166.00
First 30 minutes’ low	Could not verify
Time of session high	Reached by 9:35:55 a.m. EDT; exact time could not be verified
Open-to-close change	−8.61% — $164.43 to $150.28

The daily prices support the gap and open-to-close calculations. Price history A recorded 9:35:55 a.m. snapshot already showed the $166.00 session high, supporting the first-half-hour high, but it does not establish the exact high timestamp or the full half-hour low. Intraday snapshot record

GPT 6.1 with Cavalry Right 31.2s

Oracle reported non GAAP EPS of $1.92 and total revenue of $19.345 billion for fiscal Q1 2027, released after the close on September 10, 2026. Oracle earnings release

ORCL common stock, September 11, 2026 session. All times ET:

Opening gap: +$11.49, or +7.51%. The 09:30 open was $164.43 versus September 10’s official daily close of $152.94 at 16:00.
First 30 minutes, 09:30 to 10:00: high $166.00, low $154.35, measured from 5 minute bars.
Session high: $166.00 occurred within the 09:30 to 09:35 bar. The exact minute cannot be established.
Open to close: −8.61%. $150.28 at the official 16:00 daily close / $164.43 at the 09:30 open − 1.

Claude Opus 5.5 web search only Partial 64.2s

I have the earnings numbers and the daily OHLC. Now checking one article for intraday timing (when the high hit, first 30 minutes).

Oracle beat on both earnings and revenue. On Sep 11 the stock opened about 7.5% higher, then gave it all back and closed below Thursday's close. I couldn't find minute-by-minute data, so I can't give you the first-30-minute high and low or the exact time of the session high.

Fiscal Q1 2027 results (quarter ended Aug 31, 2026; Oracle press release)

Non-GAAP EPS: $1.92, up 30% year over year. Analysts expected about $1.74 (LSEG). GAAP EPS was $1.56.
Total revenue: $19,345M (about $19.35B), up 30%. Analysts expected about $19.14B.

Sep 11, 2026 session (a Friday)

Item	Value
Sep 10 close	$152.94
Sep 11 open	$164.43
Opening gap	+$11.49 (+7.51%)
Session high	$166.00 (one report says $165.99)
Session low	$149.84
Close	$150.28 (down 1.74% on the day)
Open to close	−$14.15 (−8.61%)

First 30 minutes (9:30–10:00 ET), high and low: I couldn't find these. The free sources I checked only publish daily open, high, low and close, not intraday bars.
Time of the session high: I couldn't confirm an exact time. Yahoo Finance's 11:31 AM recap says ORCL "jumped in early trading" and then "pared gains as the morning wore on." That suggests the high came soon after the open, so it may fall inside the first 30 minutes, but I can't confirm that. TipRanks reported that by early afternoon the stock had given up an earlier gain of about 6% and turned negative.
To get the exact numbers, check the 1-minute or 5-minute chart for Sep 11 on a broker platform (thinkorswim, IBKR, TradingView) or a market data API.

Sources:

Claude Opus 5.5 with Cavalry Right 18.9s

Oracle reported non GAAP EPS of $1.92 (up 30% year over year) and total revenue of $19.3 billion (up 30%) for fiscal Q1 2027. GAAP EPS was $1.56, and cloud infrastructure revenue was $7.4 billion, up 121%. ORCL opened sharply higher on Sep 11, then lost the whole gain and more, closing near its low of the day.

ORCL common stock, Sep 11 session (official daily bar and 5 minute bars, regular hours)

Measure	Value	Time (ET)
Sep 10 close	152.94	16:00 Sep 10
Sep 11 open	164.43	09:30
Opening gap	+7.51%	09:30
First 30 min high	166.00	09:30 to 09:35 bar
First 30 min low	154.35	09:30 to 09:35 bar
Session high	166.00	09:30 to 09:35 bar
Close	150.28	16:00
Open to close	−8.61%

Gap: 164.43 / 152.94 − 1 = +7.51%.
The first 30 minutes are the six 5 minute bars from 09:30 to 10:00. The high and the low of that window both came in the opening 5 minute bar, which swung from 166.00 down to 154.35.
The session high of 166.00 came in that same first bar, between 09:30 and 09:35. After that ORCL drifted lower all day. Its session low of 149.84 came in the last bar, 15:55 to 16:00, which left it below the Sep 10 close.
Open to close: 150.28 / 164.43 − 1 = −8.61%. Official volume was 80,438,600 shares.

Question 44Event driven

Micron reported fiscal Q4 2026 after the close on Sep 30, 2026. What revenue and non GAAP EPS did it report? On Oct 1, what was MU's opening gap, the time of its session high and of its session low, and its % change from the 10:00 ET price to the close?

Correct answer

Revenue: $54.23B
Non GAAP EPS: $33.42
MU opening gap vs prior close: −1.01%
Time of MU session high (5 minute bar start): 15:55 ET
Time of MU session low (5 minute bar start): 10:20 ET
MU 10:00 → close: +5.10%

GPT 6.1 web search only Partial 50.6s

Micron reported $54.23 billion in revenue and $33.42 in non-GAAP EPS. MU opened down 1.04%; the quoted session high and low occurred at 15:59 and 10:23 ET. I’m still checking the 10:00 ET price needed for the return-to-close calculation.

Micron reported $54.23 billion in revenue and $33.42 in non-GAAP diluted EPS for fiscal Q4 2026. Micron earnings release

For MU’s October 1 regular session, all times ET:

Metric	Result
Opening gap versus September 30 close	−1.04% (−$11.03): $1,054.08 open versus $1,065.11 prior close
Session high	$1,098.90 at 15:59
Session low	$1,022.90 at 10:23

Sources: daily prices and Mizuho’s timestamped quote.

I couldn’t verify the 10:00 ET price, so I can’t reliably give the requested 10:00-to-close percentage. The close was $1,097.39; the calculation is $(1,097.39/P_{10:00}-1)\times100$.

GPT 6.1 with Cavalry Right 33.4s

Micron reported $54.229 billion revenue and $33.42 non GAAP diluted EPS for fiscal Q4 2026, released September 30. Earnings release

For MU common stock on October 1, 2026, all times ET:

Measure	Result
Opening gap	−$11.03, or −1.04%
Session high	$1,098.90, within 15:55 to 16:00
Session low	$1,022.90, within 10:20 to 10:25
10:00 to close	+5.07%

The gap compares the official daily open of $1,054.08 at 09:30 with September 30’s official daily close of $1,065.11 at 16:00.

The later return is 1,097.39 / 1,044.41 − 1 = 5.07%, using the October 1 official daily close at 16:00 and the 5 minute bar close at 10:00.

Exact high and low times cannot be established. The windows above come from 5 minute bars.

Claude Opus 5.5 web search only Partial 47.4s

I have the earnings numbers and Oct 1 daily OHLC. Now checking CNBC's live blog for intraday timing.

I confirmed the earnings figures and the Oct 1 daily prices. I couldn't find the exact times of the session high and low or a 10:00 ET price in any free source I could reach, so the 10:00-to-close % change is still missing.

Fiscal Q4 2026 (reported Sep 30, 2026, after the close)

Micron's earnings release, filed with the SEC on Form 8-K, gives:

Revenue: $54.23 billion. That compares with $41.46B the prior quarter and $11.32B a year earlier.
Non-GAAP diluted EPS: $33.42. Non-GAAP net income was $38.40B. GAAP EPS was $32.87.
Other numbers in the release: non-GAAP gross margin was 87.0%. Guidance for fiscal Q1 2027 is revenue of $61.5B ± $1.5B and non-GAAP EPS of $38.15 ± $1.00.

MU on Oct 1, 2026

	Price
Prior close (Sep 30)	$1,065.11
Open	$1,054.08
High	$1,098.90
Low	$1,022.90
Close	$1,097.39 (+3.03%)

Opening gap: down about $11.03, or −1.04%. Investing.com shows the open as $1,054.17, which is close to the same.
Time of the low: most likely in the morning, but I don't have a timestamp. Benzinga describes an "early slide of almost 4%" before the stock recovered. The $1,022.90 low is −3.96% from the prior close, which fits that description.
Time of the high: no timestamp found. The high ($1,098.90) is only $1.51 above the close, so it most likely came in the last minutes of trading. That's my inference from the numbers, not a sourced fact.
10:00 ET price and the % change to the close: not found. The fetches of Benzinga, ts2.tech and CNBC's live blog returned 403 errors, and the sources I could read only had daily figures.

To get the exact high/low times and the 10:00 price, you'd need minute-level data, for example from a broker's chart, TradingView, or a data provider such as Alpaca. If you can export that data, I can work out the remaining numbers from it.

Sources:

Claude Opus 5.5 with Cavalry Right 23.2s

On Sep 30, 2026, after the close, Micron reported fiscal Q4 2026 revenue of $54.23B and non‑GAAP EPS of $33.42. On Oct 1, MU common stock opened about 1% lower, made its low at 10:20 ET and its high at 15:55 ET, and gained +5.07% from 10:00 ET to the close.

The quarter (ended Sep 3, 2026)

Revenue: $54.23B. One estimate was $52.60B; another survey had $51.51B.
Non‑GAAP EPS: $33.42, a 2.6% beat on a $32.56 estimate. Web sources give the consensus as $31.82. GAAP EPS was $32.87.
Guidance for fiscal Q1 2027: revenue of about $61.5B, plus or minus $1.5B.

Oct 1 session (5 minute bars, regular hours, ET)

Item	Value	Time
Opening gap	−1.04%	09:30
Session high	1,098.90	15:55 bar
Session low	1,022.90	10:20 bar
10:00 price	1,044.41	09:55 bar close
Close	1,097.39	16:00

The gap uses the official open of 1,054.08 and the Sep 30 close of 1,065.11: 1,054.08 / 1,065.11 − 1 = −1.04%.
10:00 to close: 1,097.39 / 1,044.41 − 1 = +5.07%. If you use the last 5 minute bar's close of 1,097.675 instead of the official close, it is +5.10%.
The stock sold off into the 10:20 low, then climbed most of the afternoon and closed near the session high.

Question 45Event driven

Levi Strauss reported Q3 2026 after the close on Oct 7, 2026. What adjusted diluted EPS did it report? On Oct 8: LEVI's opening gap vs the Oct 7 close, the session low and the time it printed, and whether it closed above or below its opening price (and by how much).

Correct answer

Adjusted diluted EPS: $0.48 (vs $0.34 a year earlier)
LEVI opening gap vs prior close: −2.61%
LEVI session low: $18.58
Time of LEVI session low (5 minute bar start): 09:35 ET
LEVI open → close: +0.18%

GPT 6.1 web search only Partial 51.1s

The release confirms adjusted diluted EPS of $0.48. Daily price data shows a 2.61% opening gap down and a close $0.05 above the open; I’m still checking the time of the $18.58 session low.

Levi Strauss reported Q3 2026 adjusted diluted EPS of $0.48. Company release filed with the SEC

For LEVI’s October 8 regular session:

Item	Result
Opening gap vs. October 7 close	Opened at $19.00, down $0.51 (2.61%) from $19.51
Session low	$18.58
Close vs. opening price	Closed at $19.05, above the open by $0.05 (0.26%)

Prices are from Stock Analysis’s historical data; percentages are calculated from those prices.

I couldn’t verify the timestamp of the $18.58 low from accessible intraday data.

GPT 6.1 with Cavalry Right 30.3s

LEVI Class A common stock reported adjusted diluted EPS of $0.48 for Q3 2026 after the close on Oct 7. Company release

For Oct 8, 2026, all times ET:

Opening gap: $19.00 at 09:30 versus Oct 7’s $19.51 close at 16:00, down $0.51, or 2.61%.
Session low: $18.58, recorded in the 09:35 to 09:40 five minute bar. One minute bars are not covered, so the exact print time cannot be established.
Close versus open: $19.05 at 16:00, above the opening price by $0.05, or 0.26%.

Open and close prices use official daily bars.

Claude Opus 5.5 web search only Partial 43.9s

Levi Strauss reported adjusted diluted EPS of $0.48 for Q3 FY2026, the quarter ended Aug 30, 2026. I found Oct 8's opening gap and session low, but not the time the low printed. The stock closed slightly above its open.

Q3 results (reported Oct 7, after the close)

Adjusted diluted EPS was $0.48, against $0.34 a year earlier and a consensus of about $0.36. GAAP diluted EPS from continuing operations was $0.43.
Tariff refunds added about $0.16 of EPS. One Investing.com piece says the refunds made up about $0.11 of the beat instead.
Revenue was $1.61B, up 4% reported. Consensus was about $1.62B, so it was a small miss.
Full-year adjusted EPS guidance went up to $1.54–$1.56, from $1.46–$1.52.

LEVI on Oct 8, 2026 (daily data from StockAnalysis; Morningstar shows the same range and close)

	Price
Oct 7 close	$19.51
Oct 8 open	$19.00
High	$19.39
Low	$18.58
Close	$19.05

Opening gap: down $0.51 (about −2.6%) from the Oct 7 close.
Session low: $18.58. Its time isn't in any source I could find. StockStory had the stock at $18.86 at 10:35 AM ET, so the low printed at some other point in the session. You'd need 1‑minute or tick data, for example from a broker platform or TradingView, to pin down the time.
Close vs. open: it closed above the open by $0.05 (about +0.26%), at $19.05 against $19.00. That was still down $0.46 (−2.36%) from the prior close.

Sources:

Claude Opus 5.5 with Cavalry Right 18.8s

Levi Strauss reported adjusted diluted EPS of $0.48 for Q3 FY2026 (quarter ended Aug 30, 2026). A year earlier it was $0.34. The estimate was $0.3649, so the beat was 31.5%. GAAP diluted EPS from continuing operations was $0.43. Tariff refunds added $0.16 of EPS; the company redeployed about $0.05 of that, so the net benefit was about $0.11. Revenue was $1.6097B against an estimate of $1.6474B, a miss.

LEVI common stock on Oct 8, 2026:

Item	Value
Oct 7 official close	19.51
Oct 8 official open	19.00
Opening gap	−0.51 (−2.61%)
Session low	18.58, in the 09:35 to 09:40 ET 5 min bar
Oct 8 official close	19.05
Close vs open	+0.05 (+0.26%), above the open

Gap: 19.00 / 19.51 − 1 = −2.61%. The stock opened lower even though EPS beat.
Low: the low came in the second 5 minute bar of the session. After that LEVI traded mostly between 18.65 and 18.95 until about 14:20 ET. It then climbed back above 19.
Close: the official close was 19.05, so it finished $0.05 above the 19.00 open. The day high was 19.39. The last 5 minute bar closed at 19.035; the official 19.05 includes the closing auction.

Question 46Event driven

Broadcom reported fiscal Q3 2026 after the close on Sep 2, 2026. What revenue did it report? On Sep 3: AVGO's opening gap vs the Sep 2 close, the high and low of the first 30 minutes, and AVGO's % change from the open to the close.

Correct answer

Revenue: ~$29.6B (+86% y/y)
AVGO opening gap vs prior close: −4.25%
AVGO high of the first 30 minutes: $353.60
AVGO low of the first 30 minutes: $343.45
AVGO open → close: +1.60%

GPT 6.1 web search only Partial 44.0s

The daily prices show a 4.22% gap down and a 1.54% gain from open to close. I’m still checking the 9:30–10:00 a.m. ET range; daily high and low data can’t establish that interval.

Broadcom reported $29.591 billion in fiscal Q3 2026 revenue. Broadcom earnings release

For AVGO on September 3, 2026, using regular-session, unadjusted prices:

Metric	Result
Opening gap vs. September 2 close	−$15.50 (−4.22%), from $367.24 to $351.74
First 30-minute high and low, 9:30–10:00 a.m. ET	Could not verify from accessible intraday data
Open-to-close change	+1.54%, from $351.74 to $357.16

Price inputs: Yahoo Finance historical data. Percentages calculated as (ending price ÷ starting price − 1) × 100.

The full-day high/low was $359.40/$342.33; those figures do not establish the first 30-minute range.

GPT 6.1 with Cavalry Right 27.6s

Broadcom reported fiscal Q3 2026 revenue of $29.591 billion, released after the close on September 2. Broadcom’s results

For AVGO common stock on September 3, 2026, all times ET:

Opening gap: −$15.50, or −4.22%. The official daily bar opened at $351.74 at 09:30, versus September 2’s $367.24 close at 16:00.
First 30 minutes, 09:30 to 10:00: high $353.60, low $343.45, measured from six 5 minute bars.
Open to close: +1.54%. The official daily bar closed at $357.16 at 16:00, versus its $351.74 open.

The official daily open is used for both calculations; the first 5 minute bar’s open differs at $351.615. Revenue comes from Broadcom’s release.

Claude Opus 5.5 web search only Partial 44.1s

I found the revenue and the daily open/close, but I couldn't find the high and low for the first 30 minutes on Sep 3. None of the sources I checked had minute-level data for that session.

Q3 FY2026 results (reported Sep 2, after the close; quarter ended Aug 2)

Revenue was $29.6B ($29.59B), up 86% from a year earlier. Analysts expected about $29.36B.
Non-GAAP EPS was $3.32. AI semiconductor revenue was $16.7B, up 221% from a year earlier.
Q4 revenue guidance of about $34.8B was below the roughly $35.03B consensus. That miss is why the stock fell despite the beat.

AVGO on Sep 3, 2026

Opening gap: The Sep 2 close was $367.24 and the Sep 3 open was $351.74. That's a gap down of $15.50, or 4.22%.
TradingKey reported that AVGO "opened down 5.76%," which would put the open near $346. That doesn't match the $351.74 opening price that both Optionslam and StockAnalysis list, so I'd go with the $351.74 figure.
High and low in the first 30 minutes: I couldn't find these. The only range I found is for the whole day: high $359.40, low $342.33. The 30-minute numbers need an intraday data source, such as 1- or 5-minute bars from a broker platform, TradingView, or a paid API.
Open to close: It opened at $351.74 and closed at $357.16, a gain of +1.54% (my calculation). It still finished the day down 2.74% from the Sep 2 close.

Sources:

Claude Opus 5.5 with Cavalry Right 18.8s

Broadcom reported fiscal Q3 2026 revenue of $29.6 billion, up 86% from a year earlier. AI semiconductor revenue was $16.7 billion. On Sep 3, AVGO gapped down about 4.2% at the open, traded between $343.45 and $353.60 in the first 30 minutes, and then gained 1.54% from the open to the close.

The quarter (ended Aug 2, 2026)

Semiconductor solutions brought in $20.84B and infrastructure software $8.75B.
AI semiconductor revenue rose 221% from a year earlier and 54% from the prior quarter.
Non GAAP EPS was $3.32, above the roughly $3.22 to $3.24 analysts expected.
Fiscal Q4 guidance is about $34.8B in revenue, including $21.7B of AI semiconductor revenue. Reports called this slightly below what analysts expected.

AVGO on Sep 3, 2026

Measure	Value	Basis
Opening gap	−4.22%	open 351.74 vs Sep 2 close 367.24
First 30 min high	353.60	5 minute bars, 09:30 to 10:00 ET
First 30 min low	343.45	5 minute bars, 09:30 to 10:00 ET
Open to close	+1.54%	close 357.16 vs open 351.74

Gap: 351.74 / 367.24 − 1 = −4.22%.
Open to close: 357.16 / 351.74 − 1 = +1.54%.
The high came in the 09:30 bar and the low in the 09:55 bar.
The day's official low was 342.33, which came after 10:00.
The first 5 minute bar opened at 351.615, slightly different from the official open of 351.74.

Question 47Event driven

The FOMC announced its decision at 2:00 pm ET on Sep 16, 2026. What did it do to the federal funds target range? For SPY that day: the price at 14:00 ET, the % move from 14:00 to 14:30 ET (start of the press conference), the % move from 14:30 ET to the close, and the time of the session high.

Correct answer

Decision: raised 25 bp to 3.75% to 4.00%
SPY price at 14:00 ET: $760.28
SPY 14:00 → 14:30: −0.08%
SPY 14:30 → close: −0.74%
Time of SPY session high (5 minute bar start): 11:45 ET

GPT 6.1 web search only Wrong 60.0s

The Fed’s statement confirms a 25-basis-point hike to 3.75%–4.00%. I found a report placing SPY’s session high around 11:47 ET, but I’m still looking for minute-level prices to calculate the two requested moves.

The FOMC raised the federal funds target range by 25 basis points, from 3.50%–3.75% to 3.75%–4.00%. Federal Reserve statement

For SPY on September 16, 2026, all times ET:

Requested measure	Result
Price at 14:00	Could not verify
Move from 14:00 to 14:30	Could not verify
Move from 14:30 to the 16:00 close	Could not verify
Session high time	Approximately 11:47 ET, at $761.67, according to SPY Next Move’s recap

The daily closing price was $754.05. ChartExchange historical data I couldn’t retrieve reliable minute-level data for the two intraday prices, so I can’t responsibly calculate those percentage moves.

GPT 6.1 with Cavalry Right 28.3s

At 14:00 ET on September 16, 2026, the FOMC raised the federal funds target range by 25 basis points to 3.75% to 4.00%. Federal Reserve statement

For SPY, that session:

Measure	Result
Price at 14:00 ET, 5 minute close	$760.28
Move from 14:00 to 14:30 ET	−0.08%
Move from 14:30 to 16:00 ET close	−0.74%
Session high time	11:45 to 11:50 ET

The 14:30 ET 5 minute close was $759.68; the official daily close at 16:00 ET was $754.05. The session high was $761.67, within the 11:45 ET 5 minute bar. Exact timing within that bar is unavailable.

Claude Opus 5.5 web search only Right 50.6s

The Fed raised the federal funds target range by 25 bp, from 3.50–3.75% to 3.75–4.00%. The vote was 12–0. It was the first hike since July 2023, and Chair Kevin Warsh held the press conference at 2:30 pm ET.

SPY on Sep 16, 2026 (from Yahoo Finance 5-minute bars, Eastern time):

Metric	Value
Price at 14:00 ET	≈ $760.28 (close of the 13:55 bar; the 14:00 bar opened at $760.18)
14:00 → 14:30 ET	≈ −0.08% (760.28 → 759.68)
14:30 ET → close	≈ −0.74% (759.68 → 754.07)
Session high	$761.67 in the 11:45–11:50 ET bar (before the decision)

The decision itself barely moved SPY. It rose a little to about $761.2 just after 2:05, then gave that back. The real selling started once the press conference began. The first bar of the presser fell about 0.27%, and SPY kept sliding to a low of about $749.60 around 15:25–15:30. It recovered a bit into the close.

These figures come from 5-minute bars, not tick data, so the 14:00 and 14:30 prices are bar boundaries. The official closing-auction price could differ by a few cents from the $754.07 last-bar close. The index-level reports match the direction: CNBC had the S&P 500 down 0.45% at 7,551.81, and the Dow fell about 631 points.

Sources:

Claude Opus 5.5 with Cavalry Right 20.6s

At its Sep 16, 2026 meeting the FOMC raised the federal funds target range by 25 basis points, from 3.50% to 3.75% to 3.75% to 4.00%. The statement came out at 14:00 ET and the vote was 12 to 0. This was the first hike since 2023.

SPY on Sep 16, 2026 (from 5 minute bars, regular hours):

Measure	Value
Price at 14:00 ET	760.28
14:00 to 14:30 ET	−0.08%
14:30 ET to the close	−0.74%
Session high	761.67, 11:45 to 11:50 ET bar

Price at 14:00: the 13:55 bar closed at 760.28.
14:00 to 14:30: 759.68 / 760.28 − 1 = −0.08%. The 759.68 is the 14:25 bar's close. The first bar after the decision swung both ways, from 758.77 up to 760.98, and then settled almost flat.
14:30 to the close: 754.07 / 759.68 − 1 = −0.74%. The 754.07 is the 15:55 bar's close. This is not the official closing print, which may differ by a few cents. SPY fell steadily once the press conference began and hit its low of 749.60 in the 15:05 bar.
Session high: 761.67 came in the late morning, before the decision. The highest point after the decision was 761.225 in the 14:05 bar. With 5 minute bars I can only place the high within that 5 minute window.

Question 48Event driven

Fed day, Sep 16, 2026 (decision at 14:00 ET). For these rate sensitive names (GS, HOOD, SOFI, OPEN, RKT, V, MA, COMP), measure the % change from the 14:00 ET price to the close. Which fell the most, which did best, and which of them fell more than 1.5% over that window?

Correct answer

Worst 14:00 → close: GS (−4.53%)
Best 14:00 → close: V (−0.07%)
Fell more than 1.5% from 14:00 to the close: 3: GS, RKT, COMP

GPT 6.1 web search only Wrong 63.9s

I found daily closing prices, but haven’t verified the 14:00 ET prices yet. Those are essential here: the reported daily percentage changes use the previous day’s close and don’t measure your requested window.

I couldn’t verify the 14:00 ET prices for all eight names, so I can’t reliably identify the worst performer, best performer, or complete list falling more than 1.5%.

Two names can be excluded from that last group using their entire day’s high:

Ticker	Sept. 16 close	Daily high	High-to-close change
V	$370.93	$376.48	−1.47%
MA	$567.75	$573.04	−0.92%

Since their 14:00 prices could not exceed those highs, neither V nor MA fell more than 1.5% from 14:00 to close. Sources: Visa historical prices, Mastercard historical prices.

For GS, HOOD, SOFI, OPEN, RKT, and COMP, the missing intraday observations prevent a defensible answer. The required calculation is 100 × (close ÷ 14:00 price − 1); daily reported changes measure a different window.

GPT 6.1 with Cavalry Right 21.6s

GS fell most, −4.58%. V did best, −0.08%. Only GS, RKT and COMP fell more than 1.5%.

September 16, 2026 window: the 5 minute bar close at 14:00 ET to the official daily close at 16:00 ET.

Change = (official close / 14:00 price − 1) × 100.

Ticker	14:00 → 16:00 price	Window change
GS	982.99 → 937.98	−4.58%
HOOD	105.33 → 104.42	−0.86%
SOFI	16.9601 → 16.84	−0.71%
OPEN	2.615 → 2.59	−0.96%
RKT	13.255 → 12.95	−2.30%
V	371.2101 → 370.93	−0.08%
MA	569.47 → 567.75	−0.30%
COMP	10.55 → 10.33	−2.09%

Claude Opus 5.5 web search only Right 145.6s

Got intraday and daily data for all eight. One number (RKT around 14:00) looks off, so I'm checking it again before I finish.

All eight fell between the 14:00 ET decision and the close. That's when the Fed raised rates 25 bp to 3.75–4.00%. Stocks rose briefly after the statement, then sold off during Chair Warsh's press conference.

Ticker	~14:00 ET price	Close (Sep 16)	% change
GS	982.99	937.98	−4.58%
RKT	13.255	12.95	−2.30%
COMP	10.55	10.33	−2.09%
OPEN	2.615	2.59	−0.96%
HOOD	105.33	104.42	−0.86%
SOFI	16.96	16.84	−0.71%
MA	569.47	567.75	−0.30%
V	371.21	370.93	−0.08%

Fell the most: Goldman Sachs (GS), down about 4.6%. Most of the drop came after about 15:00 ET.
Did best: Visa (V), down only about 0.08%, which is roughly flat. No name was up over the window.
Fell more than 1.5%: GS, RKT and COMP.

How I measured it:

14:00 price: the last trade before the announcement, which is the close of the 13:55 five-minute bar. That's the same as the open of the 14:00 bar.
Close: the official daily close.
Source: Yahoo Finance's chart data.

The cutoff depends on the reference point. If you used the end of the 14:00–14:05 bar instead, which is just after the headline, prices had already moved. On that basis, RKT's drop shrinks to about 1.1% and COMP's to about 1.5%, right at the line. GS still falls about 4.2%. So the list of names that fell more than 1.5% depends on taking the price right at 14:00.

Sources:

Yahoo Finance – Sep 16, 2026 market live blog
Yahoo Finance – Stock Market Today (Sept. 16, 2026)
CNBC – Fed rate decision September 2026
CNN – Fed raises interest rates for the first time since 2023
CNBC – Live updates
Regards of Wall Street – September 2026 Fed meeting
Yahoo Finance chart API (5-min and daily) for GS, HOOD, SOFI, OPEN, RKT, V, MA, COMP

Claude Opus 5.5 with Cavalry Right 17.6s

All eight names fell between the 14:00 ET decision and the close on Sep 16, 2026. GS fell the most at −4.53%. V held up best at −0.07%, nearly flat. GS, RKT and COMP each fell more than 1.5%.

Ticker	14:00 to 16:00 price	Change
GS	982.99 to 938.46	−4.53%
RKT	13.255 to 12.96	−2.23%
COMP	10.55 to 10.335	−2.04%
OPEN	2.615 to 2.59	−0.96%
HOOD	105.33 to 104.42	−0.86%
SOFI	16.9601 to 16.85	−0.65%
MA	569.47 to 568.43	−0.18%
V	371.2101 to 370.94	−0.07%

Fell the most: GS, −4.53%. At its low of 932.37 it was down 5.15%, and it only partly recovered by the close.
Did best: V, −0.07%. MA was close behind at −0.18%. The two payment networks barely reacted to the decision.
Fell more than 1.5%: GS (−4.53%), RKT (−2.23%) and COMP (−2.04%).
Dropped harder before the close: HOOD, OPEN and SOFI fell 2.5% to 3.4% at their lows after 14:00, then recovered to finish down less than 1%.

The start price is the 5 minute bar that ended at 14:00 ET. The end price is the last 5 minute bar that ended at 16:00 ET, which can differ slightly from the official closing auction price.

Question 49Event driven

The minutes of the September FOMC meeting were released at 2:00 pm ET on Oct 7, 2026. For SPY and these mega caps (AAPL, MSFT, NVDA, AMZN, GOOG, META, TSLA, AVGO): what was SPY's % move from 14:00 to 14:30 ET, which mega cap rose most over that half hour, SPY's price at 14:00 ET, and SPY's lowest print between 14:00 and 16:00?

Correct answer

SPY 14:00 → 14:30: +0.03%
Best 14:00 to 14:30: MSFT (+0.39%)
SPY price at 14:00 ET: $777.31
SPY low 14:00 to 16:00: $776.79

GPT 6.1 web search only Wrong 62.2s

The Fed confirms the October 7 release. The price sources I’ve found so far show daily or hourly data; I’m checking for finer data to calculate the half-hour moves and the low within your two-hour window.

I confirmed the Fed’s October 7 release, but couldn’t retrieve the intraday data needed to verify your four answers.

Requested result	Status
SPY’s % move, 14:00–14:30 ET	Unverified
Biggest percentage gainer among the eight mega caps	Unverified
SPY’s price at 14:00 ET	Unverified
SPY’s lowest print, 14:00–16:00 ET	Unverified

The available daily data shows SPY’s full-day low was $773.61, but doesn’t establish whether it occurred in your window.

A timestamped intraday export for the nine symbols would let me calculate the moves; trade data would verify the exact lowest print.

GPT 6.1 with Cavalry Right 33.4s

On October 7, 2026, all times ET:

SPY rose 0.0296% from 14:00 to 14:30, from $777.31 to $777.54, using 5 minute closes.
MSFT common stock rose most among the eight mega caps: +0.3852%, from $529.60 to $531.64 over that same window, using 5 minute closes.
SPY at 14:00: $777.31, the 5 minute bar close ending at 14:00.
SPY’s lowest recorded price from 14:00 to 16:00: $776.79, in the 1 minute bar beginning at 15:40. The exact trade second is unavailable.

Claude Opus 5.5 web search only Right 152.0s

I've finished pulling the price data. Here are the results.

SPY and the mega caps, Oct 7, 2026, from the 2:00 pm ET FOMC minutes release

Question	Answer
SPY price at 14:00 ET	$777.22 (opening price of the 14:00 bar)
SPY % move, 14:00 → 14:30 ET	+0.04% ($777.22 → $777.54)
Mega cap that rose most	MSFT, +0.39% ($529.55 → $531.64)
SPY's lowest print, 14:00–16:00 ET	$776.79, around 15:30 ET

How the other mega caps moved from 14:00 to 14:30:

META +0.13%
AVGO +0.11%
AMZN +0.09%
AAPL +0.04%
NVDA +0.01%
GOOG −0.11%
TSLA −0.15%

How I got the numbers

Source: Yahoo Finance chart data at 30-minute and 1-minute intervals. Each "move" runs from the opening price of the 14:00 bar to the closing price of the 14:00–14:29 bar.
14:30 endpoint: If you measure to the opening price of the 14:30 bar instead, SPY's move is +0.03% ($777.47). MSFT is still the top gainer either way.
The low: I took the lowest price across the 30-minute bars from 14:00 to 16:00. The 1-minute data gave the same $776.79.
Possible errors: A tool summarized the raw data for me, so a small transcription error is possible. Yahoo's 1-minute series was also slightly off by one in one place: the opening-price list had one fewer entry than the timestamp list. The 30-minute and 1-minute results agreed on the 14:00 price and the low, so I'm fairly confident in them.
Market tone: Reports from that day say stocks were already lower before the release. The minutes showed most Fed officials expected another rate increase by year-end, and SPY barely moved after they came out.

Sources:

Yahoo Finance chart API – SPY (and the same endpoint for each mega-cap ticker)
FOMC Minutes, September 15–16, 2026
Middle Market Debt Weekly: Fed Minutes Point to a December Hike
TradingView/Seeking Alpha: Stock market drops as yields climb; eyes on FOMC minutes

Claude Opus 5.5 with Cavalry Right 23.4s

SPY rose +0.03% from 14:00 to 14:30 ET on Oct 7, 2026, a small move. MSFT rose the most of the mega caps, up +0.39% over the half hour. SPY was at 777.31 at 14:00 ET, and its lowest print from 14:00 to 16:00 ET was 776.79.

SPY

Price at 14:00 ET: 777.31, the close of the 13:59 one minute bar.
14:00 to 14:30 ET: 777.31 to 777.54, which is +0.23 or +0.03% (1 minute bars). The range in that half hour was 776.92 to 777.78.
Low from 14:00 to 16:00 ET: 776.79 (5 minute bars). SPY closed the window at 777.14, down 0.02% from 14:00.

Mega caps, 14:00 to 14:30 ET (1 minute bars)

Ticker	14:00 to 14:30	Chg %
MSFT	529.60 to 531.64	+0.39%
META	724.26 to 725.14	+0.12%
AVGO	372.94 to 373.34	+0.11%
AMZN	258.79 to 259.05	+0.10%
AAPL	336.74 to 336.86	+0.04%
NVDA	236.92 to 236.92	+0.00%
GOOG	345.33 to 344.96	−0.11%
TSLA	376.97 to 376.41	−0.15%

MSFT's gain was more than three times the next best name's. Overall the market barely reacted to the minutes.

Every 30 minute window had all 30 one minute bars, so these figures cover the full half hour.

Question 50Event driven

The EIA Weekly Petroleum Status Report came out at 10:30 ET on Wednesday Oct 7, 2026. What was the change in US commercial crude oil inventories (excluding SPR) for the week ending Oct 2? How much did the November 2026 NYMEX WTI futures contract (CLX26) move from 10:30 to 11:00 ET, and how did XOM, CVX and VLO move over the same 10:30 to 11:00 window?

Correct answer

Commercial crude stocks change, week ending Oct 2: −3.19M bbl (427.320M → 424.134M)
CLX26.NYM 10:30 → 11:00: −0.32%
XOM 10:30 → 11:00: −0.33%
CVX 10:30 → 11:00: −0.26%
VLO 10:30 → 11:00: −0.64%

GPT 6.1 web search only Wrong 66.0s

The sources I’ve found report a crude inventory draw of about 3.2 million barrels. I’m checking the archived EIA table for the exact figure; I haven’t yet found timestamped prices that establish the four 30-minute moves.

US commercial crude inventories excluding SPR fell by 3.186 million barrels for the week ending October 2, 2026—from 427.320 million to 424.134 million barrels. That rounds to a 3.2 million-barrel draw. EIA inventory series

I couldn’t verify the 10:30–11:00 ET changes for CLX26, XOM, CVX, or VLO from accessible timestamped market data. The sources I found don’t provide both endpoint prices, so I can’t reliably state dollar or percentage moves for that window. Those calculations require intraday trades or minute bars for October 7, using consistent endpoint conventions.

GPT 6.1 with Cavalry Right 33.3s

US commercial crude inventories excluding SPR fell 3.2 million barrels for the week ending October 2, 2026, to 424.1 million barrels. EIA summary

From 10:30 to 11:00 ET on October 7, all four instruments declined:

Instrument	Price, 10:30 → 11:00 ET	Change
CLX26	$89.86 → $89.57	−$0.29, −0.32%
XOM	$164.49 → $163.95	−$0.54, −0.33%
CVX	$205.920 → $205.385	−$0.535, −0.26%
VLO	$426.99 → $424.25	−$2.74, −0.64%

CLX26 is November 2026 NYMEX WTI futures, using 5 minute closes ending at those times, not bars starting then.

Stock figures use split adjusted 1 minute closes.

Claude Opus 5.5 web search only Wrong 43.3s

I found the inventory figure. I couldn't find the 10:30–11:00 ET price moves for CLX26, XOM, CVX or VLO.

1. Commercial crude inventories (excluding SPR), week ending Oct 2, 2026: down about 3.19 million barrels

The exact headline was −3,186K barrels. Analysts expected a build of about +1.7M barrels, so this was a surprise draw. The prior week was a build of +922K.
Commercial stocks now stand at about 424.1M barrels, roughly 1% above the five-year average. The draw ended two weeks of builds in a row.
Other figures in the same report:
Gasoline: +382K (expected −1.66M)
Distillates: −42K (expected −2.1M)
SPR: −0.8M barrels to about 283M, its lowest level since 1982
The API survey the night before showed a crude draw of −2.09M, so some of the surprise was already expected.

One aggregator site lists +0.9M for this week. That conflicts with the EIA-based reports, so I treated it as an error.

2. CLX26 move from 10:30 to 11:00 ET: not found

CLX26 was the front-month contract that day, because the October contract had already expired. The only intraday figure I found is from a pre-release report: WTI was up 45¢ at $89.89, trading between $89.33 and $90.98, but it doesn't give the exact time of that quote. The same writer said the bullish draw was offset by an IEA statement backing faster reserve releases. Houthi strikes on Saudi pumping stations and an explosion in the Strait of Hormuz were also in the news. No source I found gave price levels at 10:30 and 11:00, and the daily figures I found contradict each other.

3. XOM, CVX and VLO from 10:30 to 11:00 ET: not found

A TipRanks story that day ("Surprise Crude Draw Sends U.S. Oil Stocks Surging") names no tickers and gives no prices. The only share data I found is from Oct 1, before the report.

Where to get the 30-minute moves: You need intraday bars for those timestamps. Good options are CME DataMine or a Bloomberg/Refinitiv terminal for CLX26 1-minute bars. For the stocks, a broker platform such as TradingView, IBKR or thinkorswim works, or Databento for historical minute data. If you can export those bars, I can calculate the moves.

Sources:

Claude Opus 5.5 with Cavalry Right 26.7s

Commercial crude stocks (excluding SPR) fell 3.186 million barrels in the week ending Oct 2. The previous week was a build of 0.922 million barrels. Secondary reports put total stocks at about 424.1 million barrels, about 1% above the five year average, with refineries running at 92.7%. I don't have a consensus forecast, so I can't say whether the draw beat expectations.

From 10:30 to 11:00 ET, WTI and all three stocks drifted lower despite the draw:

Instrument	10:30 → 11:00 ET	Change
CLX26 (WTI Nov 2026)	89.86 → 89.57	−0.29 (−0.32%)
XOM	164.49 → 163.95	−0.54 (−0.33%)
CVX	205.92 → 205.39	−0.54 (−0.26%)
VLO	426.99 → 424.25	−2.74 (−0.64%)

CLX26: Prices are 5 minute bar closes. It traded between 89.40 and 89.91 in the window, so the report did not set off a big move.
Stocks: Prices are 1 minute bar closes, 30 bars each.
XOM: The low was 163.82, down 0.41% at the worst point.
CVX: The low was 205.18, down 0.36% at the worst point.
VLO: It fell the most, reaching 423.04 (down 0.93% at the worst point), and never traded above its 10:30 price in the window.

The inventory figure comes from EIA data. The total stock level, the five year comparison and the refinery rate come from secondary web reports, not from the EIA page itself.

Question 51Event driven

Treasury auctioned a 30 year bond reopening at 1:00 pm ET on Oct 8, 2026. What high yield did it clear at? Over the next half hour (13:00 to 13:30 ET), how did these names move: GS, V, MA, COMP, OPEN? Which did best and which worst?

Correct answer

30 year high yield: 5.618%
GS 13:00 → 13:30: −0.17%
V 13:00 → 13:30: +0.24%
MA 13:00 → 13:30: +0.37%
COMP 13:00 → 13:30: +2.12%
OPEN 13:00 → 13:30: +0.90%
Best 13:00 to 13:30: COMP
Worst 13:00 to 13:30: GS

GPT 6.1 web search only Wrong 67.7s

The reported auction high yield was 5.618%. I’m still checking the half-hour stock moves; the daily prices I found don’t establish what happened between 13:00 and 13:30 ET.

The reopening cleared at a 5.618% high yield, according to the auction results compiled from Treasury data.

I couldn’t verify 13:00 and 13:30 ET prices for GS, V, MA, COMP (Compass), or OPEN (Opendoor) from the accessible sources. Without those intraday observations, I can’t reliably quantify their half-hour moves or identify the best and worst performers; daily returns don’t answer that interval.

GPT 6.1 with Cavalry Right 31.4s

The 30 year Treasury bond reopening, maturing August 15, 2056, cleared at 5.618% at the October 8, 2026, 13:00 ET auction. Auction results

COMP did best; GS did worst, measured by percentage change over 13:00 to 13:30 ET.

Prices below are 1 minute bar closes ending at those two times, respectively.

Ticker	13:00 → 13:30 ET	Change
GS	880.21 → 878.71	−0.1704%
V	377.95 → 378.85	+0.2381%
MA	578.41 → 580.53	+0.3665%
COMP	9.19 → 9.385	+2.1219%
OPEN	2.235 → 2.255	+0.8949%

These are observed moves, not proof the auction caused them.

Claude Opus 5.5 web search only Wrong 40.4s

I found the auction result. I couldn't find the 13:00–13:30 stock moves, so I can't say which name did best or worst.

30-year bond reopening, Oct 8, 2026

High yield: 5.618%. That's the highest for a 30-year auction since August 2000 and 31 bp above the previous auction. It was a $22B reopening.
It cleared just above the 5.617% when-issued yield trading before the auction, so it tailed by about 0.1 bp.
Bid-to-cover was 2.54, against an average of about 2.41. Indirect bidders took about 72.3%; one source says 70.4%. Dealers took about 6.8%.
Investinglive graded it a "B," and Bloomberg said demand was good. CNBC reported the 30-year yield fell more than 5 bp to about 5.60%.

GS, V, MA, COMP, OPEN from 13:00 to 13:30 ET
Minute-by-minute prices for a specific half hour aren't published in news or search results, and I don't have a market-data feed. Here's the closest I found:

GS: closed at $882.59, down 0.52% on the day. That's the full-day move, not the half hour.
V and MA: both were on a MarketBeat list of financial stocks to watch that day because of high trading volume, but no price moves were reported. A Dow Jones headline said "Financial Stocks Advance Late Afternoon," but I couldn't see the article.
COMP and OPEN: I found no data for Oct 8. The latest prices I found were about $2.44 for OPEN on Oct 2 and $12.80 for COMP on Aug 19.
Overall market: the Nasdaq fell 1.25%, the S&P 500 fell 0.47%, and the Dow rose 0.10%. Oil and rate worries weighed on stocks.

To get the answer, pull 1-minute or 5-minute bars for Oct 8, 2026 from a broker, Alpaca, Databento, or the TradingView intraday chart. Compare the 13:00 price with the 13:30 price and rank the five by % change. If you paste the bars or a CSV here, I'll calculate the ranking.

Sources:

Claude Opus 5.5 with Cavalry Right 23.3s

The 30 year bond reopening on Thursday, Oct 8, 2026 cleared at a 5.618% high yield at 13:00 ET. That is up from 5.308% at the Sep 10 auction. I don't have a when issued or consensus figure, so I can't say whether it tailed or stopped through.

From 13:00 to 13:30 ET (1 minute bars, all 30 bars present), COMP did best and GS did worst. GS was the only one of the five to fall:

Ticker	13:00 to 13:30 ET	Chg %
COMP	9.19 to 9.385	+2.12%
OPEN	2.235 to 2.255	+0.89%
MA	578.41 to 580.53	+0.37%
V	377.95 to 378.85	+0.24%
GS	880.21 to 878.71	−0.17%

COMP: It rose almost steadily, reaching 9.425 at its high (+2.56% at the peak) and dipping no more than 0.05% below 9.19.
GS: It moved the most both ways, from a high of 885.01 (+0.55%) to a low of 876.81 (−0.39%), and finished slightly lower.
OPEN: It was up 0.89%, but that is only 2 cents on a low priced stock.
MA and V: Both card networks rose slightly. MA was a bit stronger than V.

A 5.618% high yield is about 31 basis points above September's auction. Still, rate sensitive housing names (COMP, OPEN) rose in the half hour after it rather than falling.

Question 52Event driven

Treasury auctioned a 10 year note reopening at 1:00 pm ET on Oct 7, 2026. What was the high yield? For AAPL, MSFT, NVDA, AMZN, give each one's % change from the 13:00 ET price to the 14:00 ET price, and SPY's move over the same hour.

Correct answer

10 year high yield: 5.300%
AAPL 13:00 → 14:00: +0.27%
MSFT 13:00 → 14:00: +0.34%
NVDA 13:00 → 14:00: +0.00%
AMZN 13:00 → 14:00: +0.07%
SPY 13:00 → 14:00: +0.12%

GPT 6.1 web search only Partial 80.4s

The reported auction high yield was 5.300%. I found hourly price snapshots and am checking both endpoints so I can calculate each move from 13:00 to 14:00 ET.

The auction’s high yield was 5.300%. Auction result

Using archived hourly price snapshots for Oct. 7, 2026:

Ticker	13:00 ET	14:00 ET	Change
AAPL	$335.82	$336.80	+0.292%
MSFT	Unverified	Unverified	—
NVDA	$236.93	$236.86	−0.030%
AMZN	Unverified	Unverified	—
SPY	Unverified	Unverified	—

Calculated as $100 \times (P_{14:00}/P_{13:00}-1)$. I couldn’t retrieve verifiable endpoints for MSFT, AMZN, or SPY, so those hour moves remain unresolved.

GPT 6.1 with Cavalry Right 22.3s

The 10 year Treasury note reopening on Oct 7, 2026, at 13:00 ET had a 5.300% high yield. Auction results

Changes from 13:00 to 14:00 ET that day, using the 5 minute bar closes ending at those times:

Ticker	Prices, 13:00 → 14:00	Change
AAPL	335.835 → 336.740	+0.2695%
MSFT	527.790 → 529.600	+0.3429%
NVDA	236.910 → 236.919	+0.0038%
AMZN	258.620 → 258.790	+0.0657%
SPY	776.350 → 777.310	+0.1237%

Calculated as (14:00 price / 13:00 price − 1) × 100. SPY gained $0.96 over the hour.

Claude Opus 5.5 web search only Wrong 43.0s

I found the high yield, but I couldn't get the 13:00 and 14:00 ET prices for the stocks, so I can't give you those hourly % changes.

Oct 7, 2026 10-year reopening: high yield 5.300%

Item	Value
High yield	5.300% (4.834% at the Sep 9 auction)
Security	Reopened 9-year 10-month note, CUSIP 91282CRF0, 4.625% coupon, matures Aug 15, 2036
Size	$39B offered; $39.93B accepted including about $926M SOMA
Bid-to-cover	2.77 (2.71 previously)
Price	94.864261
Allotted at the high yield	57.60%

Coverage describes the auction as strong. The note priced about 1.7 bp below the when-issued yield. Indirect bidders took about 80% and dealers about 2.5%. TFTC and Bloomberg report it was the highest 10-year auction yield since late 2000. Don't confuse 5.300% with the 10-year's intraday high on the secondary market, which some articles put around 5.365%.

AAPL, MSFT, NVDA, AMZN and SPY, 13:00 to 14:00 ET

I couldn't find prices for those two timestamps on Oct 7 for any of the five tickers. I didn't estimate them or use quotes I couldn't date to that day. One Yahoo watchlist page showed prices stamped "1:00 PM", but it had no date and the levels didn't fit October 2026, so I left it out.

What the sources do say about that day:

CNBC and Bloomberg report that the 10-year yield came off its high after the auction, and that this helped stocks cut their losses during the afternoon.
The S&P 500 closed down 0.22% at 7,801.77 (FRED agrees). The Dow fell 0.66% to 51,179.87. Both indexes fell back from the previous day's record highs.

To get the hourly numbers, use a source with intraday history, such as 1-minute or hourly bars from your broker, Alpaca, Databento or IBKR. Take the 13:00 and 14:00 ET prices for each ticker and compute (P14 − P13) / P13. If you can pull a CSV, I can do the calculation.

Sources:

Claude Opus 5.5 with Cavalry Right 23.1s

The 10 year note auction on Oct 7, 2026 at 13:00 ET cleared at a high yield of 5.300% (CUSIP 91282CRF0). The September 9 auction cleared at 4.834%, so this one came in about 47 basis points higher. That is an unusually large jump between two auctions. I searched the web and found nothing dated Oct 7 to confirm the 5.300%, but it did confirm the September 4.834%. The Treasury's own auction results page is the place to double check it.

Here is the 13:00 to 14:00 ET hour on Oct 7, using 1 minute bar closes. All 60 bars were there for each symbol:

Ticker	13:00 to 14:00 ET	Chg %
AAPL	335.84 to 336.74	+0.27%
MSFT	527.79 to 529.60	+0.34%
NVDA	236.91 to 236.92	+0.00%
AMZN	258.62 to 258.79	+0.07%
SPY	776.35 to 777.31	+0.12%

SPY rose 0.12% over the hour. MSFT and AAPL did better than the index, AMZN did a bit worse, and NVDA was flat. None of them sold off after the result, even though it printed much higher.

Question 53Event driven

The September 2026 jobs report came out at 8:30 ET on Oct 2, 2026. What were September nonfarm payrolls and the unemployment rate? For SPY on Oct 2: the opening gap vs the Oct 1 close, the high and low of the first 30 minutes of trading, and SPY's % change from the open to the close.

Correct answer

September payrolls: +29K
Unemployment rate: 4.2%
SPY opening gap vs prior close: +0.86%
SPY high of the first 30 minutes: $772.09
SPY low of the first 30 minutes: $769.07
SPY open → close: −0.12%

GPT 6.1 web search only Right 34.9s

September nonfarm payrolls rose 29,000, and the unemployment rate was 4.2%, as initially reported on Oct. 2, 2026. Both figures are seasonally adjusted. BLS release

For SPY on Oct. 2, 2026, using regular trading hours:

Metric	Result
Opening gap vs. Oct. 1 close	+$6.59 (+0.863%) — $770.58 open vs. $763.99 prior close
First 30 minutes’ high (9:30–10:00 a.m. ET)	$772.09
First 30 minutes’ low	$769.07
Open-to-close change	−0.122% — $770.58 open → $769.64 close

Daily prices: Yahoo Finance. First 30-minute bar: MarketParquet’s Oct. 2 sample.

Percentages calculated as (ending price ÷ starting price − 1) × 100.

GPT 6.1 with Cavalry Right 20.2s

September 2026 jobs report, released Oct 2 at 08:30 ET: nonfarm payrolls rose 29,000; unemployment was 4.2%. These are the first reported readings.

SPY ETF, Oct 2, 2026:

Measure	Result
Opening gap vs Oct 1 close	+$6.59, +0.86%
First 30 minutes high	$772.09
First 30 minutes low	$769.07
Open to close change	−0.12%

The gap compares the Oct 2 09:30 ET open of $770.58 with the Oct 1 16:00 ET close of $763.99, using daily bars. The Oct 2 16:00 ET close was $769.64, using the revised official daily bar.

The opening range covers 09:30 to 10:00 ET, using six 5 minute bars: the high occurred during 09:45 to 09:50, the low during 09:55 to 10:00.

Claude Opus 5.5 web search only Right 60.7s

The jobs report was weak. SPY gapped up about 0.86% at the open, then slipped a little through the session.

September 2026 jobs report (BLS, released Oct 2, 8:30 ET)

Nonfarm payrolls: +29,000. Consensus was about 84,000 to 90,000, depending on the source.
Unemployment rate: 4.2%, up from 4.1% in August. The rise was only about 0.03 points before rounding.
July and August were revised down by a combined 60,000.

SPY on Oct 2, 2026

Metric	Value
Oct 1 close	763.99
Oct 2 open	770.58
Opening gap	+6.59 (+0.86%)
First 30 min (9:30–10:00 ET) high	772.09 (in the 9:45 bar)
First 30 min low	769.07 (in the 9:55 bar)
Oct 2 close	769.64
Open → close	−0.94 (−0.12%)

All of SPY's +0.74% gain from the prior close came from the gap. From the open, it drifted slightly lower. The day's high was 772.65 and the low was 767.15, so both extremes came after the first 30 minutes.

I got the SPY prices from Yahoo Finance's chart API: daily bars for the open and close, and 5-minute bars for the first 30 minutes. Other data vendors' official auction prints may differ by a few cents.

Sources:

Claude Opus 5.5 with Cavalry Right 18.3s

September nonfarm payrolls came in at +29K and the unemployment rate was 4.2%. These are BLS first prints released at 08:30 ET on Oct 2, 2026, with no revisions since. SPY opened higher after the report, then slipped to finish slightly below its open.

SPY common stock (ETF), Oct 2, 2026

Measure	Value
Oct 1 close	763.99
Oct 2 open	770.58
Opening gap	+0.86%
First 30 min high	772.09
First 30 min low	769.07
Oct 2 close	769.64
Open to close	−0.12%

Opening gap: 770.58 / 763.99 − 1 = +0.86%, a $6.59 gap up. Both prices are official daily bars.
First 30 minutes (09:30 to 10:00 ET, 5 minute bars): the high was 772.09, set in the 09:45 bar. The low was 769.07, set in the 09:55 bar. So SPY went back to just below its opening price by 10:00.
Open to close: 769.64 / 770.58 − 1 = −0.12%. SPY gave back part of the gap but still closed 0.74% above Oct 1's close (769.64 / 763.99 − 1).
Full day range: 767.15 to 772.65, so the day's high came after the first 30 minutes.

Question 54Event driven

August CPI was released at 8:30 ET on Sep 11, 2026. What were headline and core CPI month over month (seasonally adjusted)? For AAPL, MSFT, NVDA, AMZN, GOOG, META, which had the largest % gain from the 9:30 open to 10:30 ET that morning, and which of them were up over that first hour?

Correct answer

Headline CPI m/m: +0.4% (SA index 332.813 → 334.131)
Core CPI m/m: +0.3% (337.765 from 336.789)
Best 9:30 to 10:30: AAPL (+1.97%)
Up over the first hour: 4: AAPL, NVDA, AMZN, GOOG

GPT 6.1 web search only Partial 73.6s

The BLS release confirms headline CPI rose 0.4% and core CPI rose 0.3% month over month. I’m still checking the stock comparison: the available summaries mostly measure gains against the previous close, which doesn’t establish the return from 9:30 to 10:30.

August 2026 CPI, month over month, seasonally adjusted:

Headline: +0.4%
Core (excluding food and energy): +0.3%

Source: BLS September 11 release.

I couldn’t verify the 9:30-open-to-10:30 ET prices for all six stocks, so I can’t reliably identify the largest gainer or which were up over that hour. The comparison requires (10:30 price ÷ opening price − 1) × 100; gains versus the previous close don’t answer it.

GPT 6.1 with Cavalry Right 22.9s

August 2026 seasonally adjusted CPI, released September 11 at 08:30 ET, was +0.4% month over month headline and +0.3% core.

AAPL had the largest first hour gain, +1.97%. AAPL, NVDA, AMZN and GOOG were up; MSFT and META were down.

Ticker	09:30 to 10:30 ET gain
AAPL	+1.97%
MSFT	−0.10%
NVDA	+0.16%
AMZN	+0.66%
GOOG	+1.34%
META	−0.17%

Returns use September 11’s 09:30 open and the 5 minute bar close at 10:30 ET: (close / open − 1) × 100. 5 minute bars were used.

Claude Opus 5.5 web search only Partial 45.4s

I could confirm the CPI numbers, but I couldn't find the 9:30–10:30 ET stock prices, so I can't say which stock gained most in that hour or which ones were up.

**August 2026 CPI (seasonally adjusted, month over month), from the BLS release:**

Headline: +0.4% (July was +0.1%). Year over year it was 3.4% before seasonal adjustment. Gasoline rose 3.9% and made up over a third of the monthly increase.
Core (excluding food and energy): +0.3% (July was +0.2%). Year over year it was 2.4%. CNBC reports that core was 0.1 point above forecasts and headline matched them.

The 9:30–10:30 ET window: None of the sources I found give prices at the open and at 10:30 for these stocks. The Yahoo Finance live blog only says the S&P 500, Nasdaq and Dow each opened about 1% higher at 9:42 ET. At 10:55 ET it reported that markets saw a 90% chance of a Fed rate hike. It gives no moves for individual megacaps that morning.

Full-day moves, which don't answer your question: A Current Logic brief lists AAPL +1.75%, GOOG +1.53%, MSFT +0.65%, META +0.57% and NVDA −0.03%, with no figure for AMZN. These appear to be close-to-close moves. Another recap puts AMZN up about 2%, Alphabet and Apple up more than 1.7%, and MSFT and META up about 0.5%. The sources don't fully agree. First-hour moves can differ a lot from the full day, so don't use these as a stand-in.

To get the real answer, use historical 1-minute or hourly bars, for example from a brokerage charting tool, Alpaca or Databento. Compare the 9:30 open with the 10:30 price for each ticker. If you have access to one of those, I can write a short script to pull and rank them.

Sources:

Claude Opus 5.5 with Cavalry Right 26.7s

AAPL had the biggest gain, up 1.97% from the 9:30 open to 10:30 ET on Sep 11, 2026. Four of the six were up over that first hour: AAPL, GOOG, AMZN and NVDA. MSFT and META were slightly down.

August 2026 CPI (seasonally adjusted, released 08:30 ET Sep 11):

Headline CPI: +0.4% month over month (3.4% year over year)
Core CPI: +0.3% month over month (2.4% year over year)

Both are first prints with no revisions since.

First hour, 09:30 to 10:30 ET. The open is the first 5 minute bar's open. The 10:30 price is the close of the 10:25 to 10:30 bar.

Ticker	Open → 10:30	Chg %
AAPL	327.63 → 334.09	+1.97%
GOOG	332.86 → 337.32	+1.34%
AMZN	254.05 → 255.72	+0.66%
NVDA	221.25 → 221.60	+0.16%
MSFT	495.63 → 495.13	−0.10%
META	653.02 → 651.90	−0.17%

META had the widest swing. It reached 664.24 by about 09:50, then gave the gain back and finished the hour in the red.
NVDA fell to about 219.03 in the first 10 minutes and recovered later in the hour.

The opens come from 5 minute bar data and can differ by a few cents from the official opening prints.

Question 55Event driven

The August JOLTS report was released at 10:00 ET on Sep 29, 2026. How many job openings did it report (and the revised July figure)? Then for SPY and AAPL, MSFT, NVDA, AMZN, GOOG, META: SPY's % move from 10:00 to 10:30 ET and which mega cap moved most in either direction over that window.

Correct answer

August job openings: 7.079 million (preliminary)
July revised: 7.335 million
SPY 10:00 → 10:30: +0.08%
Largest absolute move 10:00 to 10:30: MSFT
That move: +0.99%

GPT 6.1 web search only Wrong 46.0s

The BLS release reports 7.079 million openings for August and revises July to 7.335 million. I’m still checking intraday data; daily returns won’t establish the move over the requested half hour.

The August JOLTS report showed 7.079 million job openings. July was revised up to 7.335 million, from 7.271 million—a 64,000 upward revision. BLS release

I couldn’t retrieve verifiable 10:00 and 10:30 ET intraday prices for September 29, 2026, so SPY’s half-hour percentage move and the largest absolute mover among AAPL, MSFT, NVDA, AMZN, GOOG, and META remain unverified. Daily returns don’t answer that window.

GPT 6.1 with Cavalry Right 28.6s

August job openings: 7.079 million; revised July: 7.335 million, seasonally adjusted, in the September 29, 2026 release at 10:00 ET. BLS Table 1

SPY rose 0.0772%; MSFT moved most in either direction, gaining 0.9904%.

All returns below cover September 29, 10:00 to 10:30 ET, using 5 minute closes at those endpoints, not the candle beginning at 10:00.

Ticker	Window move
SPY	+0.0772%
AAPL	−0.2343%
MSFT	+0.9904%
NVDA	+0.2828%
AMZN	+0.4790%
GOOG	−0.3340%
META	+0.3289%

SPY went from $764.72 at 10:00 to $765.31 at 10:30 ET; MSFT common stock went from $503.83 to $508.82 at those same 5 minute closes. GOOG had the largest decline.

Claude Opus 5.5 web search only Wrong 39.6s

I could confirm the JOLTS numbers, but I couldn't get the 10:00–10:30 ET price moves. None of the sources I can reach have 30-minute intraday prices for that day, and I didn't want to estimate them.

August JOLTS (BLS, released Tuesday Sep 29, 2026 at 10:00 a.m. ET)

August job openings: 7.1 million (rate 4.3%). Market coverage gives the exact figure as 7.079 million, below the roughly 7.225M consensus.
Revised July figure: 7.3 million, revised up by 64,000. Market sources give 7.335 million.
Other figures: hires were about 5.2M, quits 3.1M (rate 1.9%), and layoffs 1.6M (rate down 0.1 point to 1.0%).

SPY and the mega caps, 10:00 to 10:30 ET: not found
What I did find covers the day as a whole:

The S&P 500 closed down 0.16% at 7,670.84. Rising Treasury yields drove the day more than JOLTS did; the 30-year yield hit its highest level since 2002.
A "mid-morning" snapshot from Investrade, with no timestamp and quotes delayed 15–20 minutes, had the S&P about flat at 7,683.
One recap said Meta and Amazon rose on the day while Microsoft, Alphabet, Nvidia and Apple fell. That's a close-of-day view, it comes from a small blog, and it conflicts with other sources, so it doesn't tell us who moved most in that 30-minute window.

To answer the second part, you need 1-minute or 5-minute bars for Sep 29 for SPY, AAPL, MSFT, NVDA, AMZN, GOOG and META. Alpaca, Databento, a broker export or TradingView would have them. Take each stock's price at 10:00 and at 10:30 and compute the % change; the largest absolute change is your answer. If you give me the bars or an API key, I can do the calculation.

Sources:

Claude Opus 5.5 with Cavalry Right 17.3s

August job openings came in at 7.079M, released 10:00 ET on Sep 29, 2026. July was revised to 7.335M. So openings fell by about 256K from July.

On revisions: 7.335M is the revised July figure, as given with the August release. I don't have July's original print, so I can't tell you how big the revision was.

10:00 to 10:30 ET on Sep 29 (5 minute closes):

Ticker	10:00 → 10:30	Chg %
SPY	764.72 → 765.31	+0.08%
MSFT	503.83 → 508.82	+0.99%
AMZN	245.32 → 246.49	+0.48%
GOOG	336.79 → 335.67	−0.33%
META	720.68 → 723.05	+0.33%
NVDA	229.84 → 230.49	+0.28%
AAPL	332.85 → 332.07	−0.23%

SPY rose 0.08% and barely moved after the release. Its range in the window was 764.61 to 765.75.
MSFT moved most in either direction, up 0.99%. At its high of 510.10 it was up 1.24%. AMZN was second at +0.48%.
GOOG fell the most, down 0.33%, with AAPL down 0.23%.

AAPL's figure uses 5 bars instead of 6 because one of its 5 minute bars is missing. I don't have a consensus forecast, so I can't say whether 7.079M beat or missed expectations, only that it was lower than July.

Question 56Event driven

Gold on Oct 8, 2026: what was the % change in the December 2026 COMEX gold futures contract (GCZ26) from 9:30 to 16:00 ET, when (ET) did it make its high within that window, and how did Barrick (GOLD) do from its open to its close that day?

Correct answer

GCZ26.CMX open → close: +0.26%
Time of GCZ26 high 09:30 to 16:00: 13:15 ET
Barrick (NYSE: B) open $38.98 to close $39.99: +2.59%

GPT 6.1 web search only Partial 51.6s

Barrick traded as B by then, and the stock data shows an open-to-close gain of about 2.6%. For GCZ26, I found the daily settlement and a high in the 13:00 ET half-hour bar; I’m still checking the 09:30 and 16:00 prices needed for your exact window.

For October 8, 2026:

GCZ26 change, 09:30–16:00 ET: I couldn’t verify the two endpoint prices, so I can’t reliably calculate this. The published +0.39% is settlement-to-settlement and doesn’t answer your window.
GCZ26 high within the window: $4,170.70/oz, reported in the 13:00–13:30 ET bar. The source doesn’t establish the exact minute. Dated session review.
Barrick open to close: $38.98 → $39.99, a gain of $1.01, or 2.59%, calculated as (39.99 / 38.98 − 1) × 100. Historical prices.

Barrick’s NYSE ticker was B on that date; it changed from GOLD in May 2025. Barrick announcement.

GPT 6.1 with Cavalry Partial 21.6s

On October 8, 2026, all times ET:

COMEX gold December 2026 (GCZ26): +0.26%, from $4,147.30 at 09:30 to $4,158.10 at 16:00, using 5 minute bar closes ending at those times.

Window high: $4,170.70, during the 13:15 to 13:20 ET 5 minute bar. The bars cannot identify the exact minute of the high.

Barrick common stock (GOLD): +2.64% open to close, from $40.59 at 09:30 to $41.66 at 16:00, using the official daily bar.

Gold data carries a 10 to 30 minute delivery delay.

Claude Opus 5.5 web search only Wrong 50.6s

I could answer only part of this. Barrick's day is covered below. I couldn't get the 9:30–16:00 ET numbers for GCZ26, so I can't give you that % change or the time of the high.

GCZ26 (December 2026 COMEX gold), Oct 8, 2026

The only data I could get is daily figures for the full session, not the 9:30–16:00 ET window. Barchart blocked access to its price history page (403 error), and none of the news coverage I found gave timestamped prices for the New York session.

From Investing.com's history for the December contract ("GCZ6"):

Open	High	Low	Settle	Prior settle (Oct 7)
4,139.90	4,170.70	4,128.10	4,157.00	4,140.70

Settle vs. prior settle: +0.39%. Open to settle was about +0.41%.
Time of the high: unknown. The 4,170.70 high could have come overnight, outside your window.
Caveat: the open covers the full trading day, which starts at 6 p.m. ET the evening before, so it isn't the 9:30 price. The settle is set around 1:30 p.m. ET, not 4:00.
Context: Yahoo Finance says the contract opened flat near a two-month low after Fed Governor Waller said more rate hikes are coming.

To get the actual window figures, pull 1-minute or 5-minute GCZ26 bars from a data provider such as TradingView, Barchart Premier, CME DataMine or Databento. From those, take the 9:30 and 16:00 prices and the time of the highest bar.

Barrick, Oct 8, 2026

Barrick no longer trades as GOLD. It renamed itself Barrick Mining and moved to the NYSE ticker B in 2025, so these are the figures for B:

Open $38.98 → close $39.99, which is +2.59% from open to close
High $40.00, low $38.90, volume about 6.48M shares
Up 2.07% from the prior close of $39.18. That partly reversed the previous day's −3.78%.

Barrick gained more than gold futures that day, which is typical for gold miners.

Sources:

Claude Opus 5.5 with Cavalry Wrong 31.4s

I couldn't get either answer you asked for.

GCZ26 (COMEX gold, December 2026): I tried three times to read the 5 minute and 1 hour bars for Oct 8 from 09:30 to 16:00 ET. Each time the data could not be read. So I don't have the % change for that window or the time of its high.

Barrick: Barrick's NYSE ticker is no longer GOLD. The company renamed itself Barrick Mining Corporation and switched to B on May 9, 2025. I don't have its open to close move on Oct 8.

What ticker GOLD shows now: The ticker GOLD on Oct 8, 2026 is a different company. I couldn't confirm which one, and nothing below is Barrick:

Open: 40.59
Close: 41.66
Move: 41.66 / 40.59 − 1 = +2.64%
Day's range: 40.50 to 41.75
Volume: 392,900 shares

Sources:

Question 57Event driven

Natural gas on Oct 8, 2026: what was the % change in the November 2026 NYMEX natural gas futures contract (NGX26) from 9:30 to 16:00 ET, and over the same window how did BKV and Crescent Energy (CRGY) move from their opens to their closes?

Correct answer

NGX26.NYM open → close: −3.59%
BKV open → close: −0.21%
CRGY open → close: −1.51%

GPT 6.1 web search only Partial 41.6s

BKV fell 0.25% from its open, and CRGY fell 1.44%. I’ve found NGX26’s daily settlement change, but I’m still checking for timestamped prices to calculate the exact 9:30–16:00 ET move.

On October 8, 2026, the stock moves from the regular-session open to close were:

Stock	Open	Close	Dollar move	% move
BKV	$24.00	$23.94	−$0.06	−0.25%
Crescent Energy (CRGY)	$13.20	$13.01	−$0.19	−1.44%

Prices: BKV history and CRGY history. Returns calculated as (close ÷ open − 1) × 100.

I couldn’t verify NGX26’s exact 9:30–16:00 ET return from accessible intraday data. Its reported settlement was $3.168/MMBtu, down 1.09% from the previous settlement, but that measures a different window and should not be substituted for your requested return. October 8 energy report

GPT 6.1 with Cavalry Right 22.6s

All three fell on October 8, 2026, from 09:30 to 16:00 ET.

Instrument	09:30 → 16:00 ET	Change
NGX26	3.256 → 3.139	−3.59%
BKV	24.00 → 23.94	−0.25%
CRGY	13.20 → 13.01	−1.44%

NGX26 is November 2026 NYMEX natural gas futures, priced in dollars per MMBtu. Its endpoints use the 09:30 opening price and the 15:55 to 16:00 close from 5 minute bars, not settlement.

BKV and Crescent Energy (CRGY) use their common stocks’ official daily bar opens and closes. Changes are calculated as close / open − 1, not versus the previous close.

Claude Opus 5.5 web search only Partial 58.4s

I couldn't find the exact NGX26 change from 9:30 to 16:00. The stock moves are confirmed; for gas, the closest figure available is the daily settlement change.

	Open (9:30)	Close (16:00)	Open → close
BKV	$24.00	$23.94	−0.25%
CRGY	$13.20	$13.01	−1.44%
NGX26 (Nov nat gas)	not found	not found	not found (settlement change: −1.09%)

NGX26: November gas settled at $3.168/MMBtu, down 3.5¢ (−1.09%) from about $3.203 the day before. This isn't the number you asked for, for two reasons:

It compares one settlement to the previous one, not 9:30 to 16:00.
NYMEX settles at 2:30 PM ET, so it misses the last 90 minutes of your window.

What happened during the day: prices rose early on Gulf hurricane worries and production shut-ins, reaching a roughly 1.5-week high. They then reversed after the EIA storage report at 10:30 showed an 85 Bcf injection, above the ~82 Bcf expected. Warmer forecasts deepened the losses. So 9:30 to 16:00 was very likely negative, but I couldn't confirm the size. Pinning it down would need CME historical intraday data or a vendor's time-and-sales export.

I also found Robinhood prediction-market contracts with price targets for 15-minute windows, but I didn't use them. Their levels (~$3.21–3.33) don't line up with NGX26's settlement, so they probably track a different contract or price feed.

Stocks:

BKV opened higher at $24.00, after its 7.4% rally on Oct 7 on the ~1.2 GW Texas power/hyperscaler equipment deal and a Zacks upgrade to strong-buy. It drifted down slightly by the close but still finished up about 1.1% from the prior close of $23.68.
CRGY gapped down at the open (about −2% from the $13.47 prior close) when it announced a ~$1B stock offering to fund its Eagle Ford acquisition from Devon. The offering priced at $12.50 per share. The stock fell to an intraday low of $12.67 and closed down about 3.4% on the day.

Both stocks fell from open to close along with gas, but each move was mostly driven by company news rather than the gas price.

Sources:

Claude Opus 5.5 with Cavalry Partial 20.5s

I could get the two stocks for Oct 8, 2026 but not NGX26. Both stocks fell from open to close: BKV was down 0.25% and CRGY was down 1.44%.

NGX26 (NYMEX Henry Hub natural gas, Nov 2026): I don't have the % change from 09:30 to 16:00 ET.

The futures data could not be read.
A web search found no dated Oct 8 prices for the November contract, so I won't estimate one.

Stocks, official daily bars for Oct 8 (settled):

Ticker	Open to close	Chg %
BKV	24.00 to 23.94	−0.25%
CRGY	13.20 to 13.01	−1.44%

BKV: 23.94 / 24.00 − 1 = −0.25%. The day's range was 23.70 to 24.19 and volume was 1,746,300 shares.
CRGY: 13.01 / 13.20 − 1 = −1.44%. The range was wider, 12.67 to 13.45, and volume was 15,308,300 shares.

Question 58Event driven

Bitcoin vs the ETF on Oct 9, 2026: what was bitcoin's (BTC USD) % change from 9:30 to 16:00 ET, IBIT's % change from its 9:30 open to its close, the time of IBIT's session high, and IBIT's session low price?

Correct answer

BTC USD 09:30 → 16:00: −0.81%
IBIT open → close: −0.78%
Time of IBIT high: 10:34 ET
IBIT session low: $46.53

GPT 6.1 web search only Partial 54.2s

IBIT’s open-to-close change was −0.81%, and its session low was $46.53. I also found a session-high timestamp of 10:35 ET. I’m still checking BTC’s exact endpoint prices; its daily change covers a different window.

For October 9, 2026, using the regular session, 9:30–16:00 ET:

Requested measure	Result
BTC-USD change, 9:30–16:00 ET	Unable to verify the exact intraday endpoint prices
IBIT open-to-close change	−0.81%, from $46.93 to $46.55
Time of IBIT’s session high	10:35 ET
IBIT’s session low	$46.53

IBIT’s prices and high timestamp come from its session trade record; the open, close, and low agree with Yahoo Finance’s historical data. The return is calculated as (46.55 / 46.93 − 1) × 100.

I couldn’t retrieve BTC-USD’s intraday data, so I can’t reliably supply its requested return.

GPT 6.1 with Cavalry Right 43.9s

On October 9, 2026, all times ET:

Bitcoin (BTCUSD): −0.78%, using $82,896.7031 at the 09:30 five minute close and $82,249.5469 at the 16:00 one minute open.

IBIT: −0.81%, from its official 09:30 open of $46.93 to its 16:00 close of $46.55, using the daily session bar.

IBIT session high: first reached in the 10:34 one minute bar, and matched at 10:35.

IBIT session low: $46.53, in the 15:51 one minute bar.

Bitcoin uses mixed bar intervals: the 16:00 one minute open provides the endpoint.

Claude Opus 5.5 web search only Partial 55.2s

I found IBIT's daily figures, but not the 9:30/16:00 bitcoin prices or the time of IBIT's high, so I'm stopping here. Two of your four numbers are below.

1. IBIT open to close: about −0.81%. It opened at $46.93 and closed at $46.55 (Investing.com, Gotrade). The "+0.63%" shown on these sites is the change from Thursday's close ($46.26), not from Friday's open. Yahoo lists the open as $46.94, which would make it about −0.83%.

2. IBIT session low: $46.53. The day's range was $46.53 to $47.15 (Investing.com and Yahoo agree).

3. Time of IBIT's session high: not found. A free alert log shows IBIT went above Thursday's high ($46.84) at 9:48 ET, so the $47.15 high came at 9:48 or later. I couldn't find an exact time for it.

4. BTC-USD from 9:30 to 16:00 ET: not found. I couldn't get the exact prices at either time. What I found:

Bitcoin was at $82,413 at 6:45 ET (Fortune) and $82,468 at 7:20 ET (Yahoo).
A Polymarket contract for noon ET settled at $82,746 (Future.news).
Odds on Robinhood's 4pm EDT contract put the 4pm price between $82,200 and $83,100. That's an estimate from market prices, not the official settlement figure.
The daily close of $82,123 (+0.55%) reported by Rio Times is the 00:00 UTC bar, which is 8pm ET. It doesn't match your 16:00 ET window.

From these, bitcoin was probably within about ±1% of flat over 9:30–16:00, while IBIT fell about 0.8%. That comparison is a rough estimate, not a measured result.

To get the missing numbers you need 1-minute data: BTC-USD candles at 13:30 and 20:00 UTC (from Coinbase or Yahoo), and IBIT's intraday chart for the time of the $47.15 high. Kalshi's settlement page for the 4pm contract (KXBTCD-26OCT0916) would also give the official 4pm price. That page returned rate-limit and access errors when I tried it.

Claude Opus 5.5 with Cavalry Partial 31.4s

IBIT fell 0.81% from its 9:30 open to the close on Oct 9, 2026. It hit its session high around 10:35 ET and its low of 46.53 at about 15:50 ET. I can't give bitcoin's full 9:30 to 16:00 move: the BTCUSD 5 minute bars I have stop at the 13:30 ET close, and no web source I found gives a 4:00 PM ET price.

Item	Value	Time (ET)
BTCUSD, 9:30 to 13:30 only	−0.35%	13:30
IBIT, open to close	−0.81%	16:00
IBIT session high	47.15	about 10:35
IBIT session low	46.53	about 15:50

Bitcoin (BTCUSD spot). It was 82,896.70 at the 9:30 ET 5 minute close and 82,604.53 at the 13:30 ET 5 minute close. 82,604.53 / 82,896.70 − 1 = −0.35%. That covers only the first four hours. A data site lists the daily close as about 82.54K, but that is a daily figure, not the 16:00 value. Before expiry, prediction markets for 4 PM ET were priced around 82,300 to 82,500. So bitcoin was probably flat to down slightly at 16:00, but that is not a confirmed number.

IBIT (iShares Bitcoin Trust ETF), official daily bar.

Change: it opened at 46.93 and closed at 46.55. 46.55 / 46.93 − 1 = −0.81%.
High: the official high is 47.15. In 5 minute bars it was 47.155, the high of the 10:30 bar and also the price the 10:35 bar opened at, so about 10:35 ET.
Low: 46.53, reached in the 15:50 to 15:55 bar.

Through 13:30, IBIT was down about 0.34% (46.775 / 46.935 − 1), almost the same as bitcoin's −0.35%. Most of its loss came in the last hour and a half, where the bitcoin data has a gap.

Question 59Event driven

The EIA Weekly Petroleum Status Report was released at 10:30 ET on Sep 16, 2026 (the same day as the FOMC decision). What was the change in US commercial crude inventories for the week ending Sep 11? How did front month WTI futures (CL=F) move from 10:30 to 11:00 ET, and how did XOM, CVX and VLO move from 10:30 to 11:00 ET?

Correct answer

Commercial crude stocks change, week ending Sep 11: −0.64M bbl (424.069M → 423.429M)
CL=F 10:30 → 11:00: −1.00%
XOM 10:30 → 11:00: −0.84%
CVX 10:30 → 11:00: −0.83%
VLO 10:30 → 11:00: +1.15%

GPT 6.1 web search only Wrong 82.3s

Commercial crude inventories fell by 640,000 barrels, rounded to 0.6 million in the EIA summary. I haven’t yet found verifiable 10:30 and 11:00 prices for the four instruments; the daily price data can’t establish those half-hour moves.

US commercial crude inventories, excluding the SPR, fell by 640,000 barrels (−0.640 million) for the week ending September 11, 2026, to 423.4 million barrels. The EIA summary rounds the draw to 0.6 million barrels. EIA report, Reuters report.

I couldn’t verify the requested 10:30–11:00 ET changes for CL=F, XOM, CVX, or VLO from accessible intraday data. Reuters reported WTI at $102.32/barrel at 11:00 ET, with losses extending after the release, but its $3.51 decline was versus the previous settlement, not versus 10:30. Without verified prices at both endpoints, I can’t reliably quantify the half-hour moves. Reuters.

GPT 6.1 with Cavalry Partial 32.6s

US commercial crude inventories, excluding the SPR, fell 0.6 million barrels to 423.4 million barrels for the week ending September 11, reported September 16, 2026 at 10:30 ET. EIA highlights

XOM and CVX fell; VLO rose from 10:30 to 11:00 ET that day:

Ticker	10:30 → 11:00 ET	Change
XOM	$165.17 → $163.78	−$1.39, −0.84%
CVX	$213.46 → $211.695	−$1.765, −0.83%
VLO	$393.1675 → $397.70	+$4.5325, +1.15%

These are 5 minute closes ending at the stated times, using split adjusted stock prices.

The historical front month WTI move could not be verified. CL=F resolves to WTI December 2026, CLZ26, rather than September’s October contract, CLV26. That December contract fell from $93.51 to $92.98, or approximately 0.57%, using the same 5 minute closing endpoints. October contract bars were not available, and the web search did not supply the requested intraday prices.

Claude Opus 5.5 web search only Wrong 41.4s

I could only answer the first question. Public sources don't give 10:30 or 11:00 ET prices for CL=F, XOM, CVX or VLO on Sep 16, 2026, so I can't tell you how any of them moved in that window.

1. Crude inventories, week ending Sep 11, 2026: down 0.64 million barrels

Commercial crude excluding the SPR fell 0.64 million barrels to 423.4 million. That's about 1% above the five-year average.
Analysts in a Reuters poll expected a 1.6 million-barrel draw, so the draw was smaller than forecast. Investing.com's calendar has the same numbers: −0.640M actual, −1.600M forecast, −0.391M the prior week.
Other figures from the report: Cushing −342k barrels, gasoline +0.8M, distillates +1.6M, refinery utilization 96.8%, gross crude exports +1.41M b/d to 4.83M b/d, and SPR down to 285.0M from 285.4M.

2. WTI from 10:30 to 11:00 ET: no 10:30 price available

The only intraday price I found is from Reuters (via BOE Report): oil "extended losses following the report," with WTI at $102.32, down $3.51, at 11:00 ET. Brent was $105.52, down $3.23.
That −$3.51 is the change from the prior settlement, not from 10:30. The report triggered more selling, but how much of the drop came in the 10:30–11:00 window isn't stated.
Investing.com's daily table gives Sep 16 open $105.48, high $105.63, low $100.97 and close $102.43. It lists the prior close as $100.75, but the Reuters figure implies about $105.83. Those don't match, so treat the Investing.com daily numbers with some caution.

3. XOM, CVX, VLO from 10:30 to 11:00 ET: no data found

CVX closed around $211.40, down about 2.9% for the day (one source).
XOM was reported down about 3.5% for the day. That comes from a single report that also blamed a Fed rate hike, which I couldn't confirm, so treat both as unverified.
VLO: I found no data for Sep 16.

These are full-day changes, so they mix the EIA reaction with the FOMC decision at 14:00 ET. They don't isolate the move after the report.

To get the actual 10:30–11:00 moves you'd need 1-minute or 5-minute bars from a market data source, such as CME for CL futures, or Databento, Bloomberg or Refinitiv for the stocks. Yahoo Finance's free intraday history for CL=F and these stocks doesn't go back far enough to cover Sep 16. If you can pull those bars, I can work out the moves.

Sources:

Claude Opus 5.5 with Cavalry Wrong 31.7s

US commercial crude stocks fell 0.640 million barrels in the week ending Sep 11. XOM fell 0.84% from 10:30 to 11:00 ET, but I don't have the CL=F, CVX or VLO moves for that window.

Crude inventories

The EIA release at 10:30 ET on Sep 16 showed a change of −0.640M barrels. The prior week was −0.391M.
The EIA's own summary agrees: about −0.6M barrels, leaving 423.4M barrels, roughly 1% above the five year average.
Other figures from that report: gasoline +0.8M, distillates +1.6M, refinery runs 96.8%.
It was a small draw, and total commercial petroleum stocks rose 2.6M barrels.
I don't have a consensus forecast, so I can't say whether the draw was a surprise. The only comparison I have is with the prior week.

Moves from 10:30 to 11:00 ET (5 minute closes)

Ticker	10:30 → 11:00	Change
CL=F
XOM	165.17 → 163.78	−1.39 (−0.84%)
CVX
VLO

XOM: it traded between 163.75 and 165.33 in the window and closed near its low at 11:00.
CL=F: the data couldn't be read. A web search found no intraday WTI prices for Sep 16, so I can't give the move.
CVX and VLO: the data couldn't be read, so I don't have their moves.

The FOMC decision came at 14:00 ET, so it doesn't overlap the 10:30 to 11:00 window. Retail sales for August (+1.1%, released at 08:30) were already out.

Question 60Event driven

Three companies reported after the close in this window: Oracle (Sep 10), Micron (Sep 30) and Levi Strauss (Oct 7), 2026. For each, give the next session's opening gap and close to close move. Which had the biggest gap, and which (if any) closed the reaction day above the previous close?

Correct answer

ORCL reaction day gap / close to close: gap +7.51%, close −1.74%
MU reaction day gap / close to close: gap −1.04%, close +3.03%
LEVI reaction day gap / close to close: gap −2.61%, close −2.36%
Biggest absolute gap: ORCL
Closed reaction day above prior close: MU

GPT 6.1 web search only Right 19.6s

Using regular-session prices, opening gap = next open ÷ prior close − 1; close-to-close move = next close ÷ prior close − 1.

Company	Reaction session (2026)	Prior close	Next open	Next close	Opening gap	Close-to-close
Oracle (ORCL)	Sep 11	$152.94	$164.43	$150.28	+7.51%	−1.74%
Micron (MU)	Oct 1	$1,065.11	$1,054.08	$1,097.39	−1.04%	+3.03%
Levi Strauss (LEVI)	Oct 8	$19.51	$19.00	$19.05	−2.61%	−2.36%

Oracle had the biggest gap, at +7.51%, but finished below its previous close. Only Micron closed the reaction day above the previous close, gaining 3.03%.

GPT 6.1 with Cavalry Right 16.0s

ORCL had the biggest opening gap, +7.51%. Only MU closed its reaction day above the previous close, +3.03%.

Using official daily bars, all dates in 2026. Opening gaps compare the 09:30 ET open with the previous session’s 16:00 ET close; closing moves compare those two session closes.

Ticker / reaction session	Opening gap	Close to close
ORCL / Sep 11	+7.51%	−1.74%
MU / Oct 1	−1.04%	+3.03%
LEVI / Oct 8	−2.61%	−2.36%

Calculation: reaction open or close / previous close − 1.

Claude Opus 5.5 web search only Right 26.0s

Oracle had the biggest opening gap, at +7.5%. Micron was the only one to close the reaction day above its prior close, up about 3.0%.

Company (report date)	Prior close	Next-day open	Opening gap	Next-day close	Close-to-close
Oracle (Sep 10 → Sep 11)	$152.94	$164.43	+7.51%	$150.28	−1.74%
Micron (Sep 30 → Oct 1)	$1,065.11	$1,054.08	−1.04%	$1,097.39	+3.03%
Levi Strauss (Oct 7 → Oct 8)	$19.51	$19.00	−2.61%	$19.05	−2.36%

Oracle: It gapped up on the Q1 beat and the raised FY27 guidance, reaching $166.00. It then sold off all session and closed at $150.28, down 1.74% from the prior close. The day's low was $149.84.
Micron: It opened lower, which fits the reported ~1% pre-market dip, and fell as low as $1,022.90. It then rallied and closed near the day's high of $1,098.90.
Levi Strauss: It gapped down after missing on revenue, despite beating on EPS, and stayed down. This came on top of a 4.97% drop on report day.

All prices come from one source, StockAnalysis's daily history. I checked them against news reports where I could. Oracle's −1.74% matches Chartrow's −1.7%, and Levi's $19.51 prior close matches news coverage. Investing.com puts Micron's Sep 30 close at $1,066.10, about $1 higher than the figure I used, which would shift Micron's percentages by about 0.1 point.

Sources:

Claude Opus 5.5 with Cavalry Right 17.4s

Oracle had the biggest gap, opening 7.51% higher on Sep 11. Micron was the only one that closed its reaction day above the previous close: it opened 1.04% lower on Oct 1 and finished up 3.03%.

All prices are official daily bars in ET.

Ticker	Gap at open	Close to close
ORCL	+7.51%	−1.74%
MU	−1.04%	+3.03%
LEVI	−2.61%	−2.36%

Oracle (ORCL), reported Sep 10: It closed at 152.94 on Sep 10. On Sep 11 it opened at 164.43 and reached 166.00, then fell to a low of 149.84 and closed at 150.28. Earnings per share (EPS) was 1.92 against a 1.77 estimate. Revenue was $19.35B against a $19.53B estimate.
Gap: 164.43 / 152.94 − 1 = +7.51%
Close to close: 150.28 / 152.94 − 1 = −1.74%
Micron (MU), reported Sep 30: It closed at 1065.11 on Sep 30. On Oct 1 it opened at 1054.08, dipped to 1022.90, then rallied to close at 1097.39, near the day's high of 1098.90. Results beat on both lines: EPS was 33.42 against a 32.56 estimate, and revenue was $54.23B against $52.60B.
Gap: 1054.08 / 1065.11 − 1 = −1.04%
Close to close: 1097.39 / 1065.11 − 1 = +3.03%
Levi Strauss (LEVI), reported Oct 7: It closed at 19.51 on Oct 7. On Oct 8 it opened at 19.00 and closed at 19.05, with a low of 18.58. EPS was 0.48 against a 0.36 estimate. Revenue was $1.61B against a $1.65B estimate.
Gap: 19.00 / 19.51 − 1 = −2.61%
Close to close: 19.05 / 19.51 − 1 = −2.36%

The opening gap did not predict the close. Oracle, with the largest gap up, closed lower. Micron gapped down but closed higher. Oracle and Levi both beat on EPS but missed on revenue, and both closed down; Micron beat on both and closed up.

Cavalry Market Benchmark

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