May 2026 Stock Gainers on News

Ranked by the close-to-close change of the trading session each announcement landed in. How this is measured.

Data as of the trading session of 2026-05-29, 20 of 20 completed market sessions produced ranked moves. That date is the last ranked session, not the last priced one, so follow-through dates run later.

See the biggest losers of May 2026 Every stock ranked by its May 2026 gain, with or without news

100

Ranked gains

+315.12%

Largest, QUCY

93.9%

Above baseline, day +5

2.8%

Median give-back, day +5

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100 ranked gains in May 2026

Skip the ranked rows and go to the month summary

Every percentage on a row, the follow-through readings included, is measured against that row's own pre-news close, which the row names. A day +5 reading is therefore the move from before the announcement, not a further change on top of the headline percentage.

Rows are ordered by the move measured when the board was ranked. A percentage recomputed from the session's own closing prices can sit a little above or below its neighbours; the rank is the one the measured move gave the row.

Rank	Symbol	close to close	Session	Catalyst	Announcement	from the pre-news close
1	QUCY Quantum Cyber N.V. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards	+315.12%	05/13/2026 against the close of 05/12/2026 Session detail $111.0M market cap (today)	Other Announcement	Quantum Cyber N.V. Secures Exclusive Autonomous Drone Platform as Trump Administration Seeks $55 Billion for Drone Warfare 05/13/2026 08:00 ET premarket	Day +1 +829.37% 2026-05-14 Day +5 +919.21% 2026-05-20 Best close within 5 +971.87% 2026-05-15 Five sessions later the move was 191.7% bigger, at +919.21%. Month end +693.06% on 2026-05-29
Close before and after $0.3228 to $1.34 split-adjusted Session open, high, low $0.5854, $1.62, $0.4868 Opening gap +81.35% Close inside the session range 0.75 of the range, where 1.00 is the high Session volume 535,334,093 shares, $717,347,685 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
2	PIII P3 Health Partners Inc.	+180.15%	05/15/2026 against the close of 05/14/2026 Session detail $29.4M market cap (today)	Earnings	P3 Health Partners Announces First Quarter 2026 Results 05/14/2026 16:05 ET after hours	Day +1 +127.54% 2026-05-18 Day +5 +227.54% 2026-05-22 Best close within 5 +243.92% 2026-05-21 Five sessions later the move was 26.3% bigger, at +227.54%. Month end +202.23% on 2026-05-29
Close before and after $4.03 to $11.29 split-adjusted Session open, high, low $5.22, $14.35, $5.05 Opening gap +29.40% Close inside the session range 0.67 of the range, where 1.00 is the high Session volume 65,655,410 shares, $741,249,579 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
3	PHOE Phoenix Asia Holdings Limited	+168.51%	05/05/2026 against the close of 05/04/2026 Session detail $426.6M market cap (today)	M&A / Acquisition	Phoenix Asia Holdings Limited Announces Entering into Stock Acquisition Agreement and Convertible Promissory Note 05/04/2026 16:15 ET after hours	Day +1 +63.43% 2026-05-06 Day +5 +2.86% 2026-05-12 Best close within 5 +63.43% 2026-05-06 98.3% of the move was gone five sessions later. Month end -10.91% on 2026-05-29
Close before and after $17.50 to $46.99 split-adjusted Session open, high, low $18.00, $66.82, $17.56 Opening gap +2.86% Close inside the session range 0.60 of the range, where 1.00 is the high Session volume 215,900 shares, $10,145,141 Relative volume 109.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
4	STG Sunlands Technology Group	+125.74%	05/29/2026 against the close of 05/28/2026 Session detail $37.4M market cap (today)	Buyback / Dividend	Sunlands Technology Group Announces $50 Million Share Repurchase Program 05/29/2026 04:30 ET premarket Sunlands Announces Material Asset Disposal for Cash 05/29/2026	Day +1 +59.93% 2026-06-01 Day +5 +27.57% 2026-06-05 Best close within 5 +59.93% 2026-06-01 78.1% of the move was gone five sessions later. Month end +125.74% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $2.72 to $6.14 split-adjusted Session open, high, low $5.16, $6.20, $4.19 Opening gap +89.71% Close inside the session range 0.97 of the range, where 1.00 is the high Session volume 24,973,539 shares, $153,337,529 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
5	QUCY Quantum Cyber N.V. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards	+123.88%	05/14/2026 against the close of 05/13/2026 Session detail $111.0M market cap (today)	Leadership Change	Former Trump Administration VA Secretary Peter O'Rourke Sr. Joins Quantum Cyber's Board of Directors 05/14/2026 08:01 ET premarket	Day +1 +158.21% 2026-05-15 Day +5 +165.67% 2026-05-21 Best close within 5 +165.67% 2026-05-21 Five sessions later the move was 33.7% bigger, at +165.67%. Month end +91.04% on 2026-05-29
Close before and after $1.34 to $3.00 split-adjusted Session open, high, low $1.90, $3.97, $1.63 Opening gap +41.79% Close inside the session range 0.59 of the range, where 1.00 is the high Session volume 268,958,998 shares, $806,876,994 Relative volume 752.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
6	SALM SALEM MEDIA GROUP INC A	+121.65%	05/13/2026 against the close of 05/12/2026 Session detail	M&A / Acquisition	Salem Media to Be Acquired by WaterStone in Major Growth Deal 05/12/2026 17:00 ET after hours Salem Media has Released its First Quarter 2026 Quarterly Report 05/13/2026	Day +1 +121.67% 2026-05-14 Day +5 +126.36% 2026-05-20 Best close within 5 +126.36% 2026-05-20 Five sessions later the move was 3.9% bigger, at +126.36%. Month end +124.12% on 2026-05-29
Close before and after $0.4241 to $0.9400 as traded Session open, high, low $0.9375, $0.9500, $0.9175 Opening gap +121.06% Close inside the session range 0.69 of the range, where 1.00 is the high Session volume 2,256,990 shares, $2,121,571 Relative volume 257.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
7	AGL agilon health, inc.	+117.81%	05/07/2026 against the close of 05/06/2026 Session detail $1.46B market cap (today)	Earnings	agilon health Reports First Quarter 2026 Results 05/06/2026 16:05 ET after hours	Day +1 +94.72% 2026-05-08 Day +5 +181.83% 2026-05-14 Best close within 5 +181.83% 2026-05-14 Five sessions later the move was 54.3% bigger, at +181.83%. Month end +231.35% on 2026-05-29
Close before and after $27.85 to $60.66 split-adjusted Session open, high, low $43.59, $63.87, $41.76 Opening gap +56.52% Close inside the session range 0.85 of the range, where 1.00 is the high Session volume 3,892,885 shares, $236,142,404 Relative volume 10.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
8	BWEN Broadwind, Inc. Also on the opposite board this month on both boards	+117.24%	05/12/2026 against the close of 05/11/2026 Session detail $104.3M market cap (today)	Earnings	Broadwind Announces First Quarter 2026 Results 05/12/2026 07:00 ET premarket	Day +1 +89.66% 2026-05-13 Day +5 +76.85% 2026-05-19 Best close within 5 +122.66% 2026-05-15 34.5% of the move was gone five sessions later. Month end +72.91% on 2026-05-29
Close before and after $2.03 to $4.41 split-adjusted Session open, high, low $2.38, $4.60, $2.23 Opening gap +17.24% Close inside the session range 0.92 of the range, where 1.00 is the high Session volume 21,662,612 shares, $95,532,119 Relative volume 182.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
9	AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves	+116.09%	05/14/2026 against the close of 05/13/2026 Session detail $185.7M market cap (today)	Other Announcement	Robo.ai Subsidiary Neurovia AI Launches NeuroStream™ Technology Platform to Build Physical AI Visual Data Infrastructure 05/14/2026 05:00 ET premarket	Day +1 +54.02% 2026-05-15 Day +5 +23.75% 2026-05-21 Best close within 5 +114.56% 2026-05-18 79.5% of the move was gone five sessions later. Month end -9.20% on 2026-05-29
Close before and after $2.61 to $5.64 split-adjusted Session open, high, low $4.39, $9.20, $3.26 Opening gap +68.01% Close inside the session range 0.40 of the range, where 1.00 is the high Session volume 166,489,486 shares, $939,000,701 Relative volume 769.3x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
10	MNTS Momentus Inc.	+109.76%	05/26/2026 against the close of 05/22/2026 Session detail $95.5M market cap (today)	Other Announcement	Momentus Grants Inducement Awards to Six New Employees 05/22/2026 17:00 ET after hours	Day +1 +164.23% 2026-05-27 Day +5 +90.79% 2026-06-02 Best close within 5 +164.23% 2026-05-27 17.3% of the move was gone five sessions later. Month end +128.32% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $7.38 to $15.48 split-adjusted Session open, high, low $12.96, $16.28, $11.86 Opening gap +75.61% Close inside the session range 0.82 of the range, where 1.00 is the high Session volume 85,588,815 shares, $1,324,914,856 Relative volume 42.2x the median of the 20 sessions before the pre-news close Baseline gap 4 calendar days from the pre-news close to the measured session
11	CUE Cue Biopharma, Inc.	+106.38%	05/01/2026 against the close of 04/30/2026 Session detail $224.5M market cap (today)	Offering / Dilution Rose on dilution	Cue Biopharma Announces $30 Million Private Placement 04/30/2026 16:25 ET after hours Cue Biopharma Expands Pipeline with Exclusive License from Ascendant Health Sciences Ltd. for Clinical-Stage Dual-Mechanism Anti-IgE Antibody 04/30/2026 Cue Biopharma Names Shao-Lee Lin M.D., Ph.D., CEO, President and Board Director to Lead Continued Growth and Transformation into a Clinical-Stage Company 04/30/2026	Day +1 +102.51% 2026-05-04 Day +5 +137.45% 2026-05-08 Best close within 5 +142.40% 2026-05-07 Five sessions later the move was 29.2% bigger, at +137.45%. Month end +48.58% on 2026-05-29
Close before and after $14.74 to $30.42 split-adjusted Session open, high, low $33.75, $38.00, $25.95 Opening gap +128.97% Close inside the session range 0.37 of the range, where 1.00 is the high Session volume 18,924,593 shares, $575,686,119 Relative volume 50.7x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
12	AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves	+103.91%	05/13/2026 against the close of 05/12/2026 Session detail $185.7M market cap (today)	M&A / Acquisition	Robo.ai Appoints Abu Dhabi Tech Executive as CTO of the Newly Acquired AI Data Processing Company, Neurovia 05/13/2026 05:00 ET premarket	Day +1 +340.62% 2026-05-14 Day +5 +195.31% 2026-05-20 Best close within 5 +340.62% 2026-05-14 Five sessions later the move was 88.0% bigger, at +195.31%. Month end +85.16% on 2026-05-29
Close before and after $1.28 to $2.61 split-adjusted Session open, high, low $1.45, $2.79, $1.40 Opening gap +12.89% Close inside the session range 0.87 of the range, where 1.00 is the high Session volume 85,701,892 shares, $223,681,938 Relative volume 396.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
13	EVC Entravision Communication	+93.22%	05/06/2026 against the close of 05/05/2026 Session detail $747.5M market cap (today)	Earnings	Entravision Reports First Quarter 2026 Results 05/05/2026 16:05 ET after hours	Day +1 +74.62% 2026-05-07 Day +5 +124.12% 2026-05-13 Best close within 5 +124.12% 2026-05-13 Five sessions later the move was 33.1% bigger, at +124.12%. Month end +128.14% on 2026-05-29
Close before and after $3.98 to $7.69 split-adjusted Session open, high, low $6.49, $8.35, $6.37 Opening gap +63.06% Close inside the session range 0.67 of the range, where 1.00 is the high Session volume 40,330,302 shares, $310,140,022 Relative volume 147.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
14	ATRA Atara Biotherapeutics, Inc	+92.82%	05/07/2026 against the close of 05/06/2026 Session detail $89.6M market cap (today)	FDA & Regulatory	Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel 05/07/2026 08:05 ET premarket	Day +1 +61.94% 2026-05-08 Day +5 +86.21% 2026-05-14 Best close within 5 +103.50% 2026-05-13 7.1% of the move was gone five sessions later. Month end +104.08% on 2026-05-29
Close before and after $5.15 to $9.93 split-adjusted Session open, high, low $7.85, $12.45, $6.80 Opening gap +52.43% Close inside the session range 0.55 of the range, where 1.00 is the high Session volume 76,987,170 shares, $764,482,598 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
15	HOTH Hoth Therapeutics, Inc.	+92.01%	05/27/2026 against the close of 05/26/2026 Session detail $26.0M market cap (today)	Other Announcement	Hoth Therapeutics Becomes Rocket One Inc. (Nasdaq: RKTO), Targeting the Space Economy with Next-Generation Nanomagnetic AI Chip Technology and Ultra-Low-Power, Radiation-Tolerant Computing for Space and Defense Applications 05/27/2026 08:11 ET premarket	Day +1 no data Day +5 no data Best close within 5 no data Month-end is not shown: no closing price is available for 2026-05-29.
Close before and after $0.7083 to $1.36 as traded Session open, high, low $0.8601, $1.55, $0.7500 Opening gap +21.43% Close inside the session range 0.76 of the range, where 1.00 is the high Session volume 165,804,715 shares, $225,494,412 Relative volume 554.9x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
16	BZFD BuzzFeed, Inc.	+90.44%	05/12/2026 against the close of 05/11/2026 Session detail $90.8M market cap (today)	Other Announcement	BuzzFeed, Inc. Announces Proposed Majority Stake Investment by Byron Allen’s Family Office 05/11/2026 16:55 ET after hours	Day +1 +79.48% 2026-05-13 Day +5 +79.48% 2026-05-19 Best close within 5 +104.14% 2026-05-15 12.1% of the move was gone five sessions later. Month end +123.32% on 2026-05-29
Close before and after $0.7299 to $1.39 split-adjusted Session open, high, low $1.70, $1.80, $1.35 Opening gap +132.91% Close inside the session range 0.09 of the range, where 1.00 is the high Session volume 131,369,490 shares, $182,603,591 Relative volume 527.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
17	PN Also on the opposite board this month on both boards	+89.18%	05/04/2026 against the close of 05/01/2026 Session detail Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.	M&A / Acquisition	Skycorp Solar Group Limited Announces Acquisition of Remaining 56% Stake in Nanjing Cesun Power Co., Ltd. and $3.0 Million Private Placement 05/01/2026 16:15 ET after hours	Day +1 +140.14% 2026-05-05 Day +5 +73.12% 2026-05-11 Best close within 5 +185.86% 2026-05-06 18.0% of the move was gone five sessions later. Month end +30.89% on 2026-05-29
Close before and after $2.87 to $5.42 split-adjusted Session open, high, low $5.76, $6.00, $4.61 Opening gap +101.05% Close inside the session range 0.58 of the range, where 1.00 is the high Session volume 50,179,865 shares, $271,974,868 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
18	INOD Innodata Inc.	+86.00%	05/08/2026 against the close of 05/07/2026 Session detail $2.41B market cap (today)	Earnings	Innodata Reports Record First Quarter 2026 Results 05/07/2026 16:05 ET after hours	Day +1 +127.50% 2026-05-11 Day +5 +110.56% 2026-05-15 Best close within 5 +127.50% 2026-05-11 Five sessions later the move was 28.6% bigger, at +110.56%. Month end +130.02% on 2026-05-29
Close before and after $45.64 to $84.89 split-adjusted Session open, high, low $72.92, $91.88, $72.80 Opening gap +59.77% Close inside the session range 0.63 of the range, where 1.00 is the high Session volume 19,182,369 shares, $1,628,391,304 Relative volume 18.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
19	REPL Replimune Group, Inc.	+85.68%	05/29/2026 against the close of 05/28/2026 Session detail $1.27B market cap (today)	FDA & Regulatory	Replimune Announces Planned RP1 BLA Resubmission Following Productive Discussion with FDA 05/29/2026 08:00 ET premarket	Day +1 +92.31% 2026-06-01 Day +5 +102.35% 2026-06-05 Best close within 5 +113.25% 2026-06-03 Five sessions later the move was 19.5% bigger, at +102.35%. Month end +85.68% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $4.68 to $8.69 split-adjusted Session open, high, low $7.93, $9.07, $7.67 Opening gap +69.44% Close inside the session range 0.73 of the range, where 1.00 is the high Session volume 51,373,461 shares, $446,435,376 Relative volume 9.3x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
20	QTTB Q32 Bio Inc.	+81.24%	05/27/2026 against the close of 05/26/2026 Session detail $314.7M market cap (today)	Offering / Dilution Rose on dilution	Q32 Bio Announces $55 Million Private Placement Financing 05/27/2026 08:00 ET premarket	Day +1 +45.42% 2026-05-28 Day +5 +71.93% 2026-06-03 Best close within 5 +78.28% 2026-06-02 11.5% of the move was gone five sessions later. Month end +55.85% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $7.09 to $12.85 split-adjusted Session open, high, low $9.17, $13.15, $9.15 Opening gap +29.34% Close inside the session range 0.92 of the range, where 1.00 is the high Session volume 21,152,834 shares, $271,813,917 Relative volume 98.9x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
21	YOOV Concorde International Group Ltd	+76.17%	05/14/2026 against the close of 05/13/2026 Session detail $113.7M market cap (today)	Contract / Partnership	Concorde International Group Secures Multi-Year Contracts Worth Over US$10 Million for Integrated Security Solutions in Singapore 05/14/2026 07:00 ET premarket	Day +1 +84.84% 2026-05-15 Day +5 +1.40% 2026-05-21 Best close within 5 +84.84% 2026-05-15 98.2% of the move was gone five sessions later. Month end -11.77% on 2026-05-29
Close before and after $0.6925 to $1.22 as traded Session open, high, low $1.41, $1.85, $0.9800 Opening gap +103.61% Close inside the session range 0.28 of the range, where 1.00 is the high Session volume 61,545,766 shares, $75,085,835 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
22	BRAI Braiin Limited	+74.20%	05/26/2026 against the close of 05/22/2026 Session detail Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.	Contract / Partnership	Braiin Partners with Switchcraft to Embed Utility and Telecom Switching Across Its UK Living Infrastructure Platform Targeting The Estimated £25 Billion UK Residential Lifecycle Services Market 05/26/2026 08:30 ET premarket	Day +1 +50.49% 2026-05-27 Day +5 +37.66% 2026-06-02 Best close within 5 +90.52% 2026-05-28 49.2% of the move was gone five sessions later. Month end +78.38% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $7.17 to $12.49 split-adjusted Session open, high, low $8.62, $18.59, $8.45 Opening gap +20.22% Close inside the session range 0.40 of the range, where 1.00 is the high Session volume 8,321,342 shares, $103,933,562 Relative volume 418.9x the median of the 20 sessions before the pre-news close Baseline gap 4 calendar days from the pre-news close to the measured session
23	BLZE Backblaze, Inc.	+63.58%	05/05/2026 against the close of 05/04/2026 Session detail $885.2M market cap (today)	Earnings	Backblaze Announces First Quarter 2026 Financial Results 05/04/2026 16:05 ET after hours	Day +1 +59.48% 2026-05-06 Day +5 +51.51% 2026-05-12 Best close within 5 +61.64% 2026-05-07 19.0% of the move was gone five sessions later. Month end +78.45% on 2026-05-29
Close before and after $4.64 to $7.59 split-adjusted Session open, high, low $7.43, $8.42, $7.12 Opening gap +60.13% Close inside the session range 0.36 of the range, where 1.00 is the high Session volume 37,172,898 shares, $282,142,296 Relative volume 89.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
24	EVER EverQuote, Inc.	+63.04%	05/05/2026 against the close of 05/04/2026 Session detail $688.9M market cap (today)	Earnings	EverQuote Announces First Quarter 2026 Financial Results 05/04/2026 16:05 ET after hours	Day +1 +40.79% 2026-05-06 Day +5 +30.87% 2026-05-12 Best close within 5 +41.00% 2026-05-07 51.0% of the move was gone five sessions later. Month end +31.69% on 2026-05-29
Close before and after $14.61 to $23.82 split-adjusted Session open, high, low $19.09, $23.98, $18.15 Opening gap +30.66% Close inside the session range 0.97 of the range, where 1.00 is the high Session volume 6,856,563 shares, $163,323,331 Relative volume 11.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
25	GBTG Global Business Travel Group, Inc.	+57.50%	05/04/2026 against the close of 05/01/2026 Session detail $4.94B market cap (today)	M&A / Acquisition	Long Lake Agrees to Acquire American Express Global Business Travel, the World’s Largest Corporate Travel Platform, for $6.3 Billion, With Support From General Catalyst and Alpha Wave 05/04/2026 07:30 ET premarket American Express Global Business Travel Reports Strong Q1 2026 Financial Results 05/04/2026	Day +1 +59.87% 2026-05-05 Day +5 +58.35% 2026-05-11 Best close within 5 +59.87% 2026-05-05 Five sessions later the move was 1.5% bigger, at +58.35%. Month end +57.50% on 2026-05-29
Close before and after $5.93 to $9.34 split-adjusted Session open, high, low $9.31, $9.39, $9.30 Opening gap +56.91% Close inside the session range 0.44 of the range, where 1.00 is the high Session volume 81,223,430 shares, $758,626,836 Relative volume 73.5x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
26	OSS One Stop Systems, Inc.	+56.91%	05/06/2026 against the close of 05/05/2026 Session detail $235.7M market cap (today)	Earnings	One Stop Systems Reports Q1 2026 Results 05/06/2026 08:00 ET premarket	Day +1 +54.55% 2026-05-07 Day +5 +62.33% 2026-05-13 Best close within 5 +62.95% 2026-05-11 Five sessions later the move was 9.5% bigger, at +62.33%. Month end +86.08% on 2026-05-29
Close before and after $9.77 to $15.33 split-adjusted Session open, high, low $11.43, $16.27, $10.69 Opening gap +16.99% Close inside the session range 0.83 of the range, where 1.00 is the high Session volume 17,109,239 shares, $262,284,634 Relative volume 14.9x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
27	ESPR Esperion Therapeutics, Inc.	+55.50%	05/01/2026 against the close of 04/30/2026 Session detail $819.5M market cap (today)	M&A / Acquisition	Esperion to be Acquired by ARCHIMED 05/01/2026 07:00 ET premarket	Day +1 +56.00% 2026-05-04 Day +5 +57.00% 2026-05-08 Best close within 5 +57.50% 2026-05-06 Five sessions later the move was 2.7% bigger, at +57.00%. Month end +56.50% on 2026-05-29
Close before and after $2.00 to $3.11 as traded Session open, high, low $3.13, $3.14, $3.10 Opening gap +56.50% Close inside the session range 0.25 of the range, where 1.00 is the high Session volume 182,315,651 shares, $567,001,675 Relative volume 25.3x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
28	RXT Rackspace Technology, Inc.	+55.07%	05/07/2026 against the close of 05/06/2026 Session detail $1.05B market cap (today)	Earnings	Rackspace Technology Reports First Quarter 2026 Results 05/07/2026 08:00 ET premarket Rackspace Technology and AMD Sign Memorandum of Understanding to Establish New Category of Governed Enterprise AI Infrastructure 05/07/2026	Day +1 +141.85% 2026-05-08 Day +5 +221.15% 2026-05-14 Best close within 5 +221.15% 2026-05-14 Five sessions later the move was 301.6% bigger, at +221.15%. Month end +127.75% on 2026-05-29
Close before and after $2.27 to $3.52 split-adjusted Session open, high, low $3.98, $4.62, $3.36 Opening gap +75.11% Close inside the session range 0.13 of the range, where 1.00 is the high Session volume 194,434,668 shares, $684,410,031 Relative volume 30.3x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
29	SLQT SelectQuote, Inc.	+52.43%	05/05/2026 against the close of 05/04/2026 Session detail $80.1M market cap (today)	Earnings	SelectQuote, Inc. Reports Third Quarter of Fiscal Year 2026 Results 05/05/2026 07:00 ET premarket	Day +1 +47.51% 2026-05-06 Day +5 +24.15% 2026-05-12 Best close within 5 +47.51% 2026-05-06 53.9% of the move was gone five sessions later. Month end +22.93% on 2026-05-29
Close before and after $0.8135 to $1.24 split-adjusted Session open, high, low $0.9809, $1.30, $0.9400 Opening gap +20.58% Close inside the session range 0.83 of the range, where 1.00 is the high Session volume 27,092,794 shares, $33,595,065 Relative volume 30.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
30	STRL Sterling Infrastructure, Inc.	+52.22%	05/05/2026 against the close of 05/04/2026 Session detail $26.42B market cap (at the time of the move, reconstructed)	Guidance Change	Sterling Reports Record First Quarter Results and Raises Full Year 2026 Guidance 05/04/2026 16:05 ET after hours	Day +1 +67.37% 2026-05-06 Day +5 +60.79% 2026-05-12 Best close within 5 +67.37% 2026-05-06 Five sessions later the move was 16.4% bigger, at +60.79%. Month end +62.58% on 2026-05-29
Close before and after $529.49 to $806.00 split-adjusted Session open, high, low $727.45, $807.30, $704.10 Opening gap +37.39% Close inside the session range 0.99 of the range, where 1.00 is the high Session volume 2,429,089 shares, $1,957,845,734 Relative volume 5.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
31	VELO Velo3D, Inc.	+49.43%	05/13/2026 against the close of 05/12/2026 Session detail $370.4M market cap (today)	Earnings	Velo3D Announces First Quarter 2026 Financial Results 05/12/2026 16:05 ET after hours	Day +1 +41.11% 2026-05-14 Day +5 +31.65% 2026-05-20 Best close within 5 +41.11% 2026-05-14 36.0% of the move was gone five sessions later. Month end +70.77% on 2026-05-29
Close before and after $14.06 to $21.01 split-adjusted Session open, high, low $16.74, $21.60, $16.61 Opening gap +19.06% Close inside the session range 0.88 of the range, where 1.00 is the high Session volume 16,105,897 shares, $338,384,896 Relative volume 8.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
32	SLE Super League Enterprise, Inc.	+48.40%	05/15/2026 against the close of 05/14/2026 Session detail Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.	Earnings	Super League Reports First Quarter 2026 Financial Results, Advancing Transition from Corporate Restructuring to Operational Execution 05/15/2026 07:30 ET premarket	Day +1 +26.04% 2026-05-18 Day +5 +8.35% 2026-05-22 Best close within 5 +37.35% 2026-05-20 82.7% of the move was gone five sessions later. Month end -15.23% on 2026-05-29
Close before and after $4.07 to $6.04 split-adjusted Session open, high, low $6.66, $7.07, $5.41 Opening gap +63.64% Close inside the session range 0.38 of the range, where 1.00 is the high Session volume 45,591,683 shares, $275,373,765 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
33	JZXN Jiuzi Holdings, Inc.	+48.07%	05/11/2026 against the close of 05/08/2026 Session detail Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.	Buyback / Dividend	Jiuzi Holdings, Inc. Announces $210,000 Realized Gains from DCIP Investment and Approves $100,000 Share Repurchase Program, Validating Sustainable Digital Asset Investment Framework 05/11/2026 08:15 ET premarket	Day +1 +31.49% 2026-05-12 Day +5 +30.39% 2026-05-18 Best close within 5 +49.17% 2026-05-15 36.8% of the move was gone five sessions later. Month end +28.18% on 2026-05-29
Close before and after $0.9050 to $1.34 split-adjusted Session open, high, low $1.25, $1.88, $1.23 Opening gap +37.57% Close inside the session range 0.17 of the range, where 1.00 is the high Session volume 91,494,296 shares, $122,602,357 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
34	VTIX Virtuix Holdings Inc.	+46.33%	05/27/2026 against the close of 05/26/2026 Session detail $38.0M market cap (today)	Contract / Partnership	Virtuix Selected by U.S. Air Force for AI Military Platform 05/27/2026 09:15 ET premarket	Day +1 +20.00% 2026-05-28 Day +5 +19.33% 2026-06-03 Best close within 5 +28.33% 2026-06-02 58.3% of the move was gone five sessions later. Month end +23.33% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $3.00 to $4.39 split-adjusted Session open, high, low $3.58, $4.56, $3.21 Opening gap +19.33% Close inside the session range 0.87 of the range, where 1.00 is the high Session volume 7,029,559 shares, $30,859,764 Relative volume 33.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
35	AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves	+45.96%	05/08/2026 against the close of 05/07/2026 Session detail $185.7M market cap (today)	M&A / Acquisition	Robo.ai Announces Acquisition of Data Processing and Compression Technology Company Neurovia, Building Data Infrastructure for the Machine Economy 05/08/2026 05:00 ET premarket	Day +1 +91.79% 2026-05-11 Day +5 +582.28% 2026-05-15 Best close within 5 +857.23% 2026-05-14 Five sessions later the move was 1166.9% bigger, at +582.28%. Month end +302.24% on 2026-05-29
Close before and after $0.5892 to $0.8600 split-adjusted Session open, high, low $0.9771, $1.30, $0.8543 Opening gap +65.84% Close inside the session range 0.01 of the range, where 1.00 is the high Session volume 261,482,060 shares, $224,874,572 Relative volume over 1,000x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
36	AMBQ Ambiq Micro, Inc.	+45.33%	05/12/2026 against the close of 05/11/2026 Session detail $1.72B market cap (today)	Earnings	Ambiq Reports First Quarter 2026 Financial Results 05/12/2026 07:30 ET premarket	Day +1 +56.10% 2026-05-13 Day +5 +55.77% 2026-05-19 Best close within 5 +60.50% 2026-05-14 Five sessions later the move was 23.0% bigger, at +55.77%. Month end +74.43% on 2026-05-29
Close before and after $45.67 to $66.37 split-adjusted Session open, high, low $53.14, $66.59, $53.14 Opening gap +16.36% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 3,013,046 shares, $199,975,863 Relative volume 9.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
37	OSG Octave Specialty Group, Inc.	+43.36%	05/07/2026 against the close of 05/06/2026 Session detail $197.3M market cap (today)	Earnings	Octave Specialty Group Reports First Quarter 2026 Results 05/06/2026 16:35 ET after hours	Day +1 +27.25% 2026-05-08 Day +5 +34.83% 2026-05-14 Best close within 5 +38.63% 2026-05-12 19.7% of the move was gone five sessions later. Month end +29.86% on 2026-05-29
Close before and after $4.22 to $6.05 split-adjusted Session open, high, low $5.35, $6.18, $5.30 Opening gap +26.78% Close inside the session range 0.85 of the range, where 1.00 is the high Session volume 7,747,063 shares, $46,869,731 Relative volume 19.7x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
38	POET POET Technologies Inc. Also on the opposite board this month on both boards	+43.15%	05/14/2026 against the close of 05/13/2026 Session detail $1.41B market cap (today)	Other Announcement	POET Technologies and Lumilens Advance Wafer-Level Photonic Integration for Next-Generation AI Optical Networks 05/14/2026 07:00 ET premarket	Day +1 +11.13% 2026-05-15 Day +5 +3.13% 2026-05-21 Best close within 5 +11.13% 2026-05-15 92.7% of the move was gone five sessions later. Month end -14.47% on 2026-05-29
Close before and after $14.37 to $20.57 split-adjusted Session open, high, low $17.41, $20.81, $17.39 Opening gap +21.16% Close inside the session range 0.93 of the range, where 1.00 is the high Session volume 133,109,935 shares, $2,738,071,363 Relative volume 2.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
39	FSEA First Seacoast Bancorp, Inc.	+41.99%	05/05/2026 against the close of 05/04/2026 Session detail $80.9M market cap (today)	M&A / Acquisition	Cambridge Financial Group, Inc. and First Seacoast Bancorp, Inc. Agree to Merge 05/05/2026 07:30 ET premarket	Day +1 +42.16% 2026-05-06 Day +5 +41.91% 2026-05-12 Best close within 5 +42.42% 2026-05-08 0.2% of the move was gone five sessions later. Month end +42.42% on 2026-05-29
Close before and after $11.74 to $16.67 split-adjusted Session open, high, low $16.66, $16.76, $16.61 Opening gap +41.91% Close inside the session range 0.40 of the range, where 1.00 is the high Session volume 802,438 shares, $13,376,641 Relative volume 98.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
40	ATYR aTyr Pharma, Inc. Also on the opposite board this month on both boards	+41.42%	05/14/2026 against the close of 05/13/2026 Session detail $35.0M market cap (today)	Other Announcement	aTyr Pharma to Participate in Upcoming Investor Conferences 05/13/2026 16:01 ET after hours	Day +1 +27.30% 2026-05-15 Day +5 +33.49% 2026-05-21 Best close within 5 +34.02% 2026-05-20 19.1% of the move was gone five sessions later. Month end +37.03% on 2026-05-29
Close before and after $0.3959 to $0.5599 split-adjusted Session open, high, low $0.4169, $0.5788, $0.4150 Opening gap +5.30% Close inside the session range 0.88 of the range, where 1.00 is the high Session volume 13,901,993 shares, $7,783,726 Relative volume 15.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
41	BLMN Bloomin' Brands, Inc.	+40.97%	05/06/2026 against the close of 05/05/2026 Session detail $732.1M market cap (today)	Earnings	Bloomin’ Brands Announces 2026 Q1 Financial Results 05/06/2026 06:30 ET premarket	Day +1 +38.02% 2026-05-07 Day +5 +43.75% 2026-05-13 Best close within 5 +45.31% 2026-05-11 Five sessions later the move was 6.8% bigger, at +43.75%. Month end +46.53% on 2026-05-29
Close before and after $5.76 to $8.12 split-adjusted Session open, high, low $7.06, $8.56, $6.99 Opening gap +22.57% Close inside the session range 0.72 of the range, where 1.00 is the high Session volume 11,203,080 shares, $90,969,010 Relative volume 5.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
42	DOCN DigitalOcean Holdings, Inc.	+40.40%	05/05/2026 against the close of 05/04/2026 Session detail $18.23B market cap (at the time of the move, reconstructed)	Earnings	DigitalOcean Announces First Quarter 2026 Financial Results 05/05/2026 07:00 ET premarket	Day +1 +47.96% 2026-05-06 Day +5 +43.11% 2026-05-12 Best close within 5 +50.68% 2026-05-08 Five sessions later the move was 6.7% bigger, at +43.11%. Month end +43.32% on 2026-05-29
Close before and after $108.81 to $152.77 split-adjusted Session open, high, low $130.20, $153.47, $129.51 Opening gap +19.66% Close inside the session range 0.97 of the range, where 1.00 is the high Session volume 14,950,197 shares, $2,283,941,596 Relative volume 4.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
43	MLGO MicroAlgo, Inc.	+39.95%	05/20/2026 against the close of 05/19/2026 Session detail $37.9M market cap (today)	Other Announcement	MicroAlgo Inc. Develops Quantum Image Edge Extraction Algorithm for Noisy Images 05/20/2026 09:00 ET premarket	Day +1 +55.35% 2026-05-21 Day +5 +54.31% 2026-05-28 Best close within 5 +55.35% 2026-05-21 Five sessions later the move was 35.9% bigger, at +54.31%. Month end +57.18% on 2026-05-29
Close before and after $3.83 to $5.36 split-adjusted Session open, high, low $3.79, $6.87, $3.79 Opening gap -1.04% Close inside the session range 0.51 of the range, where 1.00 is the high Session volume 9,841,321 shares, $52,749,481 Relative volume 128.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
44	FLNC Fluence Energy, Inc.	+39.90%	05/07/2026 against the close of 05/06/2026 Session detail $1.04B market cap (today)	Earnings	Fluence Energy, Inc. Reports Second Quarter 2026 Results; Reaffirms Fiscal Year 2026 Guidance 05/06/2026 16:05 ET after hours	Day +1 +78.17% 2026-05-08 Day +5 +54.42% 2026-05-14 Best close within 5 +86.06% 2026-05-11 Five sessions later the move was 36.4% bigger, at +54.42%. Month end +39.23% on 2026-05-29
Close before and after $13.56 to $18.97 split-adjusted Session open, high, low $19.21, $20.29, $16.31 Opening gap +41.63% Close inside the session range 0.67 of the range, where 1.00 is the high Session volume 46,080,059 shares, $874,138,719 Relative volume 9.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
45	WEST Westrock Coffee Company	+39.83%	05/08/2026 against the close of 05/07/2026 Session detail $797.6M market cap (today)	Earnings	Westrock Coffee Company Reports First Quarter 2026 Results and Reaffirms 2026 Outlook 05/07/2026 16:05 ET after hours	Day +1 +48.31% 2026-05-11 Day +5 +43.22% 2026-05-15 Best close within 5 +48.31% 2026-05-11 Five sessions later the move was 8.5% bigger, at +43.22%. Month end +36.10% on 2026-05-29
Close before and after $5.90 to $8.25 split-adjusted Session open, high, low $6.87, $8.62, $6.87 Opening gap +16.44% Close inside the session range 0.79 of the range, where 1.00 is the high Session volume 5,061,879 shares, $41,760,502 Relative volume 16.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
46	FJET Starfighters Space, Inc.	+39.81%	05/22/2026 against the close of 05/21/2026 Session detail $106.7M market cap (today)	Other Announcement	Starfighters Space (NYSE American: FJET) Advances STARLAUNCH Program and Commercial Space Development Through Strategic $17.5 Million Investment 05/22/2026 06:00 ET premarket	Day +1 +25.05% 2026-05-26 Day +5 +84.47% 2026-06-01 Best close within 5 +84.47% 2026-06-01 Five sessions later the move was 112.2% bigger, at +84.47%. Month end +44.85% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $5.15 to $7.20 split-adjusted Session open, high, low $5.23, $7.50, $5.23 Opening gap +1.55% Close inside the session range 0.87 of the range, where 1.00 is the high Session volume 12,461,100 shares, $89,719,920 Relative volume 13.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
47	FLEX Flex Ltd.	+39.69%	05/06/2026 against the close of 05/05/2026 Session detail $55.24B market cap (at the time of the move, reconstructed)	Earnings	FLEX REPORTS FOURTH QUARTER AND FISCAL 2026 RESULTS 05/05/2026 16:05 ET after hours Flex Announces Intention to Spin Off its Cloud and Power Infrastructure Segment into a New Independent Publicly Traded Company 05/05/2026	Day +1 +37.91% 2026-05-07 Day +5 +49.09% 2026-05-13 Best close within 5 +50.41% 2026-05-11 Five sessions later the move was 23.7% bigger, at +49.09%. Month end +56.33% on 2026-05-29
Close before and after $96.45 to $134.73 split-adjusted Session open, high, low $119.85, $134.99, $119.00 Opening gap +24.26% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 18,828,629 shares, $2,536,781,185 Relative volume 5.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
48	AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves	+39.30%	05/18/2026 against the close of 05/15/2026 Session detail $185.7M market cap (today)	Other Announcement	Robo.ai Subsidiary Neurovia AI Debuts in the International Exhibition for National Security and Resilience Abu Dhabi 2026 05/18/2026 05:00 ET premarket	Day +1 +5.47% 2026-05-19 Day +5 -23.88% 2026-05-26 Best close within 5 +5.47% 2026-05-19 It gave back the whole move and closed 23.88% below the pre-news price. Month end -41.04% on 2026-05-29
Close before and after $4.02 to $5.60 split-adjusted Session open, high, low $4.60, $6.36, $4.23 Opening gap +14.30% Close inside the session range 0.64 of the range, where 1.00 is the high Session volume 47,651,103 shares, $266,846,177 Relative volume 220.2x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
49	XMTR Xometry, Inc.	+39.18%	05/07/2026 against the close of 05/06/2026 Session detail $6.03B market cap (today)	Earnings	Xometry Reports Record First Quarter 2026 Results 05/07/2026 07:05 ET premarket Siemens and Xometry partner to bring expanded AI-native supply chain intelligence to Siemens Xcelerator 05/07/2026 Xometry and Siemens Partner to Embed AI-Native Supply Chain Intelligence into Siemens Xcelerator 05/07/2026	Day +1 +41.86% 2026-05-08 Day +5 +59.54% 2026-05-14 Best close within 5 +59.54% 2026-05-14 Five sessions later the move was 52.0% bigger, at +59.54%. Month end +68.95% on 2026-05-29
Close before and after $56.40 to $78.50 split-adjusted Session open, high, low $76.00, $82.11, $69.20 Opening gap +34.75% Close inside the session range 0.72 of the range, where 1.00 is the high Session volume 4,629,819 shares, $363,440,792 Relative volume 7.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
50	APPS Digital Turbine, Inc.	+38.88%	05/27/2026 against the close of 05/26/2026 Session detail $1.48B market cap (today)	Earnings	Digital Turbine Reports Fiscal 2026 Fourth Quarter and Fiscal Year 2026 Financial Results 05/26/2026 16:05 ET after hours	Day +1 +74.74% 2026-05-28 Day +5 +80.25% 2026-06-03 Best close within 5 +93.35% 2026-06-01 Five sessions later the move was 106.4% bigger, at +80.25%. Month end +82.54% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $4.81 to $6.68 split-adjusted Session open, high, low $6.49, $7.62, $6.17 Opening gap +34.93% Close inside the session range 0.35 of the range, where 1.00 is the high Session volume 54,811,256 shares, $366,139,190 Relative volume 32.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
51	APT Alpha Pro Tech, Ltd.	+37.87%	05/07/2026 against the close of 05/06/2026 Session detail $54.0M market cap (today)	Earnings	Alpha Pro Tech, Ltd. Announces First Quarter 2026 Financial Results 05/07/2026 09:00 ET premarket	Day +1 +37.02% 2026-05-08 Day +5 +25.11% 2026-05-14 Best close within 5 +41.28% 2026-05-11 33.7% of the move was gone five sessions later. Month end +23.83% on 2026-05-29
Close before and after $4.70 to $6.48 split-adjusted Session open, high, low $5.11, $6.55, $5.02 Opening gap +8.72% Close inside the session range 0.95 of the range, where 1.00 is the high Session volume 1,117,277 shares, $7,239,955 Relative volume 47.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
52	IPWR Ideal Power Inc.	+37.17%	05/14/2026 against the close of 05/13/2026 Session detail $70.0M market cap (today)	Earnings	Ideal Power Reports First Quarter 2026 Financial Results 05/14/2026 09:20 ET premarket	Day +1 +13.75% 2026-05-15 Day +5 +27.88% 2026-05-21 Best close within 5 +27.88% 2026-05-21 25.0% of the move was gone five sessions later. Month end +38.29% on 2026-05-29
Close before and after $5.38 to $7.38 split-adjusted Session open, high, low $5.38, $7.55, $5.31 Opening gap 0.00% Close inside the session range 0.92 of the range, where 1.00 is the high Session volume 2,356,546 shares, $17,391,309 Relative volume 8.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
53	FENC Fennec Pharmaceuticals Inc.	+36.48%	05/14/2026 against the close of 05/13/2026 Session detail $386.1M market cap (today)	Earnings	Fennec Pharmaceuticals Reports First Quarter 2026 Financial Results and Provides Business Update 05/14/2026 06:30 ET premarket	Day +1 +44.02% 2026-05-15 Day +5 +47.27% 2026-05-21 Best close within 5 +47.27% 2026-05-21 Five sessions later the move was 29.6% bigger, at +47.27%. Month end +46.68% on 2026-05-29
Close before and after $6.77 to $9.24 split-adjusted Session open, high, low $7.20, $9.64, $7.20 Opening gap +6.35% Close inside the session range 0.84 of the range, where 1.00 is the high Session volume 2,268,620 shares, $20,962,049 Relative volume 16.7x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
54	SNOW Snowflake Inc.	+36.48%	05/28/2026 against the close of 05/27/2026 Session detail $88.57B market cap (at the time of the move, reconstructed)	Earnings	Snowflake Reports Financial Results for the First Quarter of Fiscal 2027 05/27/2026 16:05 ET after hours Snowflake Announces Intent to Acquire Natoma, Providing Secure Connectivity For The Agentic Enterprise 05/27/2026 Snowflake Expands AWS Collaboration with $6B Commitment to Accelerate Enterprise Agentic AI Adoption 05/27/2026	Day +1 +45.81% 2026-05-29 Day +5 +39.32% 2026-06-04 Best close within 5 +59.85% 2026-06-01 Five sessions later the move was 7.8% bigger, at +39.32%. Month end +45.81% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $175.26 to $239.20 split-adjusted Session open, high, low $237.00, $244.92, $229.49 Opening gap +35.23% Close inside the session range 0.63 of the range, where 1.00 is the high Session volume 39,662,224 shares, $9,487,203,981 Relative volume 6.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
55	SPCE Virgin Galactic Holdings, Inc.	+36.42%	05/29/2026 against the close of 05/28/2026 Session detail $503.3M market cap (today)	Other Announcement	Virgin Galactic Announces Notice of Settlement of Derivative Actions 05/28/2026 16:33 ET after hours	Day +1 +66.00% 2026-06-01 Day +5 -3.31% 2026-06-05 Best close within 5 +66.00% 2026-06-01 It gave back the whole move and closed 3.31% below the pre-news price. Month end +36.42% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $4.53 to $6.18 split-adjusted Session open, high, low $4.80, $6.61, $4.34 Opening gap +5.96% Close inside the session range 0.81 of the range, where 1.00 is the high Session volume 178,822,224 shares, $1,105,121,344 Relative volume 18.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
56	BOOM DMC Global Inc.	+36.08%	05/01/2026 against the close of 04/30/2026 Session detail $124.7M market cap (today)	Earnings	DMC Global Reports First Quarter Financial Results 04/30/2026 16:05 ET after hours	Day +1 +25.57% 2026-05-04 Day +5 +20.39% 2026-05-08 Best close within 5 +25.57% 2026-05-04 43.5% of the move was gone five sessions later. Month end +10.19% on 2026-05-29
Close before and after $6.18 to $8.41 split-adjusted Session open, high, low $7.50, $8.56, $7.10 Opening gap +21.36% Close inside the session range 0.90 of the range, where 1.00 is the high Session volume 2,009,821 shares, $16,902,595 Relative volume 7.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
57	PS Pershing Square Inc.	+35.68%	05/01/2026 against the close of 04/30/2026 Session detail $15.84B market cap (at the time of the move, reconstructed)	Uplisting / Compliance	Pershing Square Announces the Closing of the Combined IPO of Pershing Square USA and Pershing Square Inc. 04/30/2026 17:40 ET after hours Pershing Square Holdings, Ltd. (“PSH”) Notes the Closing of Initial Public Offering of Pershing Square USA, Ltd. (“PSUS”) with Aggregate Offering Size of $5 Billion 04/30/2026 Pershing Square’s Bill Ackman and Ryan Israel to Host a Spaces Event on X 04/30/2026	Day +1 +22.18% 2026-05-04 Day +5 +48.64% 2026-05-08 Best close within 5 +48.64% 2026-05-08 Five sessions later the move was 36.3% bigger, at +48.64%. Month end +41.39% on 2026-05-29
Close before and after $28.00 to $37.99 split-adjusted Session open, high, low $29.88, $38.27, $29.41 Opening gap +6.71% Close inside the session range 0.97 of the range, where 1.00 is the high Session volume 2,167,665 shares, $82,349,593 Baseline gap 1 calendar day from the pre-news close to the measured session
58	HUT Hut 8 Corp.	+35.31%	05/06/2026 against the close of 05/05/2026 Session detail $14.06B market cap (at the time of the move, reconstructed)	Crypto & Treasury	Hut 8 Reports First Quarter 2026 Results 05/06/2026 06:45 ET premarket Hut 8 Commercializes First Phase of 1 GW Beacon Point AI Data Center Campus with 15-Year, 352 MW IT Lease with Base-Term Contract Value of $9.8 Billion 05/06/2026	Day +1 +25.67% 2026-05-07 Day +5 +34.54% 2026-05-13 Best close within 5 +34.54% 2026-05-13 2.2% of the move was gone five sessions later. Month end +55.05% on 2026-05-29
Close before and after $80.51 to $108.94 split-adjusted Session open, high, low $101.57, $111.33, $96.39 Opening gap +26.16% Close inside the session range 0.84 of the range, where 1.00 is the high Session volume 19,778,863 shares, $2,154,709,335 Relative volume 4.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
59	IMVT Immunovant, Inc.	+35.26%	05/20/2026 against the close of 05/19/2026 Session detail $7.70B market cap (today)	Earnings	Immunovant Provides Corporate Updates and Reports Financial Results for the Fourth Quarter and Fiscal Year Ended March 31, 2026 05/20/2026 07:00 ET premarket	Day +1 +29.82% 2026-05-21 Day +5 +27.42% 2026-05-28 Best close within 5 +29.90% 2026-05-22 22.2% of the move was gone five sessions later. Month end +26.66% on 2026-05-29
Close before and after $26.29 to $35.56 split-adjusted Session open, high, low $30.44, $36.29, $30.10 Opening gap +15.79% Close inside the session range 0.88 of the range, where 1.00 is the high Session volume 19,566,590 shares, $695,787,940 Relative volume 15.7x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
60	XGN Exagen Inc.	+34.92%	05/11/2026 against the close of 05/08/2026 Session detail $211.7M market cap (today)	Earnings	Exagen Inc. Reports First Quarter 2026 Results 05/11/2026 08:00 ET premarket	Day +1 +25.76% 2026-05-12 Day +5 +18.31% 2026-05-18 Best close within 5 +30.51% 2026-05-14 47.6% of the move was gone five sessions later. Month end +68.81% on 2026-05-29
Close before and after $2.95 to $3.98 split-adjusted Session open, high, low $3.36, $4.13, $3.08 Opening gap +13.90% Close inside the session range 0.86 of the range, where 1.00 is the high Session volume 6,242,885 shares, $24,846,682 Relative volume 27.8x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
61	RKLB Rocket Lab Corporation	+34.22%	05/08/2026 against the close of 05/07/2026 Session detail $85.83B market cap (at the time of the move, reconstructed)	Earnings	Rocket Lab Announces First Quarter 2026 Financial Results: Surpasses All Guidance Metrics Including Revenue, Margin, and Adjusted EBITDA; Posts Record $200M Quarterly Revenue and over $2.2B Backlog; Guides Another Record Revenue 05/07/2026 16:05 ET after hours Rocket Lab and Raytheon Selected To Demonstrate Advanced Capabilities For U.S. Space Force’s Space Based Interceptor Program 05/07/2026 Rocket Lab Awarded $30 Million Contract for HASTE Hypersonic Rocket Launches for Anduril 05/07/2026 Rocket Lab To Acquire Robotics Leader Motiv Space Systems 05/07/2026 Rocket Lab’s Biggest Launch Deal Yet: Confidential Customer Books Multiple Neutron and Electron Launches 05/07/2026	Day +1 +49.34% 2026-05-11 Day +5 +58.78% 2026-05-15 Best close within 5 +68.68% 2026-05-14 Five sessions later the move was 71.8% bigger, at +58.78%. Month end +82.59% on 2026-05-29
Close before and after $78.58 to $105.47 split-adjusted Session open, high, low $86.04, $105.62, $85.87 Opening gap +9.49% Close inside the session range 0.99 of the range, where 1.00 is the high Session volume 79,927,310 shares, $8,429,933,386 Relative volume 4.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
62	AVTX Avalo Therapeutics, Inc.	+34.13%	05/06/2026 against the close of 05/05/2026 Session detail $885.4M market cap (today)	Offering / Dilution Rose on dilution	Avalo Therapeutics Announces Proposed Public Offering of Common Stock and Pre-Funded Warrants 05/05/2026 16:05 ET after hours Avalo Therapeutics Announces Pricing of $375 Million Public Offering 05/05/2026 Avalo Therapeutics Achieves Positive Topline Results in Phase 2 LOTUS Trial of Abdakibart (AVTX-009) in Moderate to Severe Hidradenitis Suppurativa 05/05/2026	Day +1 +40.65% 2026-05-07 Day +5 +22.08% 2026-05-13 Best close within 5 +40.65% 2026-05-07 35.3% of the move was gone five sessions later. Month end -1.91% on 2026-05-29
Close before and after $16.26 to $21.81 split-adjusted Session open, high, low $22.80, $23.71, $17.69 Opening gap +40.22% Close inside the session range 0.68 of the range, where 1.00 is the high Session volume 22,460,461 shares, $489,862,654 Relative volume 32.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
63	ZTEK Zentek Ltd.	+34.06%	05/06/2026 against the close of 05/05/2026 Session detail $62.3M market cap (today)	Other Announcement	Zentek Accepting Canadian Commercial Orders for ZenGUARD(TM) Enhanced Air Filters Following Health Canada Regulatory Classification 05/06/2026 12:00 ET intraday	Day +1 +22.55% 2026-05-07 Day +5 +105.16% 2026-05-13 Best close within 5 +105.16% 2026-05-13 Five sessions later the move was 208.7% bigger, at +105.16%. Month end +20.60% on 2026-05-29
Close before and after $0.4923 to $0.6600 split-adjusted Session open, high, low $0.5099, $0.6700, $0.4699 Opening gap +3.58% Close inside the session range 0.95 of the range, where 1.00 is the high Session volume 486,026 shares, $320,777 Relative volume 4.9x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
64	CERS Cerus Corp	+33.99%	05/01/2026 against the close of 04/30/2026 Session detail $538.1M market cap (today)	Earnings	Cerus Corporation Announces First Quarter 2026 Financial Results 04/30/2026 16:01 ET after hours	Day +1 +33.99% 2026-05-04 Day +5 +28.57% 2026-05-08 Best close within 5 +33.99% 2026-05-04 15.9% of the move was gone five sessions later. Month end +49.75% on 2026-05-29
Close before and after $2.03 to $2.72 split-adjusted Session open, high, low $2.69, $3.15, $2.47 Opening gap +32.51% Close inside the session range 0.37 of the range, where 1.00 is the high Session volume 24,852,309 shares, $67,598,280 Relative volume 26.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
65	SACH Sachem Capital Corp.	+33.98%	05/18/2026 against the close of 05/15/2026 Session detail $45.2M market cap (today)	Other Announcement	Sachem Capital Corp. and Industrial Realty Group Announce Strategic Combination to Create IRG Realty Trust, a Top-10 Public Industrial REIT 05/18/2026 06:10 ET premarket	Day +1 +16.50% 2026-05-19 Day +5 +16.50% 2026-05-26 Best close within 5 +31.07% 2026-05-21 51.4% of the move was gone five sessions later. Month end +16.50% on 2026-05-29
Close before and after $1.03 to $1.38 split-adjusted Session open, high, low $1.12, $1.45, $1.08 Opening gap +8.74% Close inside the session range 0.81 of the range, where 1.00 is the high Session volume 15,283,738 shares, $21,091,558 Relative volume 130.5x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
66	HYLN Hyliion Holdings Corp.	+33.96%	05/13/2026 against the close of 05/12/2026 Session detail $798.3M market cap (today)	Earnings	Hyliion Holdings Reports First-Quarter 2026 Financial Results 05/12/2026 16:05 ET after hours	Day +1 +37.69% 2026-05-14 Day +5 +52.61% 2026-05-20 Best close within 5 +74.25% 2026-05-15 Five sessions later the move was 54.9% bigger, at +52.61%. Month end +160.82% on 2026-05-29
Close before and after $2.68 to $3.59 split-adjusted Session open, high, low $2.85, $3.60, $2.82 Opening gap +6.34% Close inside the session range 0.99 of the range, where 1.00 is the high Session volume 8,284,503 shares, $29,741,366 Relative volume 10.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
67	PD PagerDuty, Inc.	+33.74%	05/29/2026 against the close of 05/28/2026 Session detail $1.14B market cap (today)	Earnings	PagerDuty Announces First Quarter Fiscal 2027 Financial Results 05/28/2026 16:05 ET after hours	Day +1 +43.68% 2026-06-01 Day +5 +24.33% 2026-06-05 Best close within 5 +43.68% 2026-06-01 27.9% of the move was gone five sessions later. Month end +33.74% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $7.44 to $9.95 split-adjusted Session open, high, low $9.33, $10.02, $8.69 Opening gap +25.40% Close inside the session range 0.95 of the range, where 1.00 is the high Session volume 8,869,288 shares, $88,249,416 Relative volume 5.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
68	QBTS D-Wave Quantum Inc.	+33.37%	05/21/2026 against the close of 05/20/2026 Session detail $6.67B market cap (today)	Contract / Partnership	D-Wave Quantum and Department of Commerce Sign Letter of Intent for $100 Million in CHIPS and Science Act Funding to Accelerate U.S. Leadership in Quantum Computing 05/21/2026 06:47 ET premarket	Day +1 +52.33% 2026-05-22 Day +5 +56.17% 2026-05-29 Best close within 5 +56.17% 2026-05-29 Five sessions later the move was 68.3% bigger, at +56.17%. Month end +56.17% on 2026-05-29
Close before and after $19.30 to $25.74 split-adjusted Session open, high, low $21.76, $25.83, $21.61 Opening gap +12.75% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 119,074,178 shares, $3,064,969,342 Relative volume 4.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
69	VRDN Viridian Therapeutics, Inc.	+33.36%	05/05/2026 against the close of 05/04/2026 Session detail $2.51B market cap (today)	Clinical Trial Results	Viridian Therapeutics Announces Positive Topline Results from Elegrobart Phase 3 REVEAL‑2 Clinical Trial in Chronic Thyroid Eye Disease 05/05/2026 07:00 ET premarket Viridian Therapeutics Reports First Quarter 2026 Financial Results and Highlights Recent Progress 05/05/2026	Day +1 +24.68% 2026-05-06 Day +5 +19.91% 2026-05-12 Best close within 5 +24.68% 2026-05-06 40.3% of the move was gone five sessions later. Month end +25.32% on 2026-05-29
Close before and after $14.06 to $18.75 split-adjusted Session open, high, low $19.07, $20.00, $17.42 Opening gap +35.63% Close inside the session range 0.52 of the range, where 1.00 is the high Session volume 16,131,409 shares, $302,463,919 Relative volume 9.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
70	BOT RoboStrategy, Inc.	+32.88%	05/15/2026 against the close of 05/14/2026 Session detail $688.7M market cap (today)	Other Announcement	RoboStrategy, Inc. Enters Into Committed Equity Facility of up to $2 Billion from Roth Principal Investments, LLC to Support Strategic Growth Initiatives 05/15/2026 08:30 ET premarket	Day +1 +4.65% 2026-05-18 Day +5 -10.04% 2026-05-22 Best close within 5 +15.46% 2026-05-21 It gave back the whole move and closed 10.04% below the pre-news price. Month end -8.19% on 2026-05-29
Close before and after $27.10 to $36.01 split-adjusted Session open, high, low $28.97, $37.50, $24.00 Opening gap +6.90% Close inside the session range 0.89 of the range, where 1.00 is the high Session volume 1,982,623 shares, $71,394,254 Baseline gap 1 calendar day from the pre-news close to the measured session
71	EDSA Edesa Biotech, Inc.	+32.78%	05/19/2026 against the close of 05/18/2026 Session detail $39.2M market cap (today)	Other Announcement	Edesa Biotech to Present New Data on Paridiprubart in Acute Kidney Injury at European Nephrology Conference 05/19/2026 09:15 ET premarket	Day +1 +21.44% 2026-05-20 Day +5 -11.44% 2026-05-27 Best close within 5 +21.44% 2026-05-20 It gave back the whole move and closed 11.44% below the pre-news price. Month end -19.78% on 2026-05-29
Close before and after $9.00 to $11.95 split-adjusted Session open, high, low $9.67, $12.50, $9.48 Opening gap +7.44% Close inside the session range 0.82 of the range, where 1.00 is the high Session volume 1,072,278 shares, $12,813,722 Relative volume 3.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
72	DELL Dell Technologies Inc.	+32.76%	05/29/2026 against the close of 05/28/2026 Session detail $271.97B market cap (at the time of the move, reconstructed)	Earnings	Dell Technologies Delivers First Quarter Fiscal 2027 Financial Results 05/28/2026 16:05 ET after hours	Day +1 +46.97% 2026-06-01 Day +5 +24.39% 2026-06-05 Best close within 5 +46.97% 2026-06-01 25.5% of the move was gone five sessions later. Month end +32.76% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $317.05 to $420.91 split-adjusted Session open, high, low $418.00, $429.15, $402.27 Opening gap +31.84% Close inside the session range 0.69 of the range, where 1.00 is the high Session volume 41,832,954 shares, $17,607,908,668 Relative volume 8.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
73	RCAT Red Cat Holdings, Inc.	+32.61%	05/28/2026 against the close of 05/27/2026 Session detail $1.06B market cap (today)	Other Announcement	Blue Ops Ramps into Full-Rate Production of U.S.-Built Variant 7, Advancing Red Cat’s Autonomy Stack Across Air, Land and Sea 05/28/2026 11:00 ET intraday	Day +1 +35.90% 2026-05-29 Day +5 +38.14% 2026-06-04 Best close within 5 +40.11% 2026-06-02 Five sessions later the move was 17.0% bigger, at +38.14%. Month end +35.90% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $10.67 to $14.15 split-adjusted Session open, high, low $12.41, $15.06, $11.96 Opening gap +16.26% Close inside the session range 0.71 of the range, where 1.00 is the high Session volume 78,108,247 shares, $1,105,231,695 Relative volume 8.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
74	BDSX Biodesix, Inc.	+32.56%	05/05/2026 against the close of 05/04/2026 Session detail $297.0M market cap (today)	Earnings	Biodesix Announces First Quarter 2026 Results and Highlights 05/04/2026 16:01 ET after hours	Day +1 +33.10% 2026-05-06 Day +5 +39.75% 2026-05-12 Best close within 5 +42.95% 2026-05-11 Five sessions later the move was 22.1% bigger, at +39.75%. Month end +44.81% on 2026-05-29
Close before and after $11.27 to $14.94 split-adjusted Session open, high, low $13.50, $15.51, $13.32 Opening gap +19.79% Close inside the session range 0.74 of the range, where 1.00 is the high Session volume 449,510 shares, $6,715,679 Relative volume 8.9x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
75	LIFE Ethos Technologies Inc.	+32.31%	05/07/2026 against the close of 05/06/2026 Session detail $2.31B market cap (today)	Earnings	Ethos Reports First Quarter Fiscal Year 2026 Financial Results 05/06/2026 16:05 ET after hours	Day +1 +28.68% 2026-05-08 Day +5 -2.81% 2026-05-14 Best close within 5 +28.81% 2026-05-11 It gave back the whole move and closed 2.81% below the pre-news price. Month end -18.25% on 2026-05-29
Close before and after $23.12 to $30.59 split-adjusted Session open, high, low $24.50, $32.50, $24.25 Opening gap +5.97% Close inside the session range 0.77 of the range, where 1.00 is the high Session volume 2,277,079 shares, $69,655,847 Relative volume 5.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
76	FEAM 5E Advanced Materials, Inc.	+31.79%	05/13/2026 against the close of 05/12/2026 Session detail $122.4M market cap (today)	Contract / Partnership	5E Advanced Materials Signs First Milestone Offtake Heads of Agreement with Domestic Industrial Customer 05/12/2026 16:01 ET after hours 5E Advanced Materials Reports Key Fiscal Q3 2026 Commercial and Operational Milestones 05/13/2026	Day +1 +32.45% 2026-05-14 Day +5 +25.17% 2026-05-20 Best close within 5 +32.45% 2026-05-14 20.8% of the move was gone five sessions later. Month end +22.52% on 2026-05-29
Close before and after $1.51 to $1.99 split-adjusted Session open, high, low $1.65, $2.06, $1.63 Opening gap +9.27% Close inside the session range 0.84 of the range, where 1.00 is the high Session volume 1,149,745 shares, $2,287,993 Relative volume 5.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
77	CLNN Clene Inc.	+31.76%	05/04/2026 against the close of 05/01/2026 Session detail $62.3M market cap (today)	FDA & Regulatory	After Successful FDA Meeting, Clene Filing Accelerated Approval NDA for ALS 05/04/2026 08:00 ET premarket	Day +1 +7.17% 2026-05-05 Day +5 +5.86% 2026-05-11 Best close within 5 +20.36% 2026-05-07 81.5% of the move was gone five sessions later. Month end +6.84% on 2026-05-29
Close before and after $6.14 to $8.09 split-adjusted Session open, high, low $7.47, $8.67, $6.31 Opening gap +21.58% Close inside the session range 0.75 of the range, where 1.00 is the high Session volume 22,202,000 shares, $179,614,180 Relative volume 339.4x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
78	BLDP Ballard Power Systems Inc.	+31.61%	05/05/2026 against the close of 05/04/2026 Session detail $786.4M market cap (today)	Earnings	Ballard Reports Q1 2026 Results 05/05/2026 07:30 ET premarket	Day +1 +45.29% 2026-05-06 Day +5 +26.44% 2026-05-12 Best close within 5 +45.29% 2026-05-06 16.4% of the move was gone five sessions later. Month end +91.19% on 2026-05-29
Close before and after $3.29 to $4.33 split-adjusted Session open, high, low $3.25, $4.35, $3.21 Opening gap -1.22% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 20,006,256 shares, $86,627,088 Relative volume 5.7x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
79	AAON Aaon Inc	+31.49%	05/07/2026 against the close of 05/06/2026 Session detail $6.54B market cap (today)	Earnings	AAON Reports First Quarter 2026 Results with Record Sales and Backlog, Robust Earnings Growth, and Raises Full-Year Guidance 05/07/2026 07:00 ET premarket	Day +1 +42.08% 2026-05-08 Day +5 +42.42% 2026-05-14 Best close within 5 +44.15% 2026-05-11 Five sessions later the move was 34.7% bigger, at +42.42%. Month end +42.62% on 2026-05-29
Close before and after $98.30 to $129.25 split-adjusted Session open, high, low $143.00, $149.00, $125.23 Opening gap +45.47% Close inside the session range 0.17 of the range, where 1.00 is the high Session volume 7,697,620 shares, $994,917,385 Relative volume 11.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
80	INFQ Infleqtion, Inc.	+31.48%	05/21/2026 against the close of 05/20/2026 Session detail $3.17B market cap (today)	Contract / Partnership	Infleqtion Signs Letter of Intent with the U.S. Department of Commerce for $100 Million to Accelerate U.S. Leadership in Quantum Computing 05/21/2026 06:49 ET premarket	Day +1 +46.24% 2026-05-22 Day +5 +45.08% 2026-05-29 Best close within 5 +58.94% 2026-05-28 Five sessions later the move was 43.2% bigger, at +45.08%. Month end +45.08% on 2026-05-29
Close before and after $11.18 to $14.70 split-adjusted Session open, high, low $13.50, $16.09, $13.39 Opening gap +20.75% Close inside the session range 0.49 of the range, where 1.00 is the high Session volume 78,617,048 shares, $1,155,670,606 Relative volume 9.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
81	DDOG Datadog, Inc.	+31.33%	05/07/2026 against the close of 05/06/2026 Session detail $88.05B market cap (at the time of the move, reconstructed)	Earnings	Datadog Announces First Quarter 2026 Financial Results 05/07/2026 07:00 ET premarket Datadog for Government Achieves FedRAMP® High Certification 05/06/2026	Day +1 +39.28% 2026-05-08 Day +5 +41.15% 2026-05-14 Best close within 5 +42.86% 2026-05-13 Five sessions later the move was 31.3% bigger, at +41.15%. Month end +72.12% on 2026-05-29
Close before and after $143.71 to $188.73 split-adjusted Session open, high, low $187.99, $198.60, $179.47 Opening gap +30.81% Close inside the session range 0.48 of the range, where 1.00 is the high Session volume 25,969,981 shares, $4,901,314,514 Relative volume 5.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
82	AVEX AEVEX Corp.	+31.13%	05/28/2026 against the close of 05/27/2026 Session detail $1.10B market cap (today)	Other Announcement	AEVEX Management to Present at Upcoming Investor Conferences 05/28/2026 06:00 ET premarket	Day +1 +24.62% 2026-05-29 Day +5 -20.28% 2026-06-04 Best close within 5 +25.07% 2026-06-01 It gave back the whole move and closed 20.28% below the pre-news price. Month end +24.62% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $30.87 to $40.48 split-adjusted Session open, high, low $32.37, $41.16, $31.11 Opening gap +4.86% Close inside the session range 0.93 of the range, where 1.00 is the high Session volume 3,837,997 shares, $155,362,119 Relative volume 2.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
83	FATE Fate Therapeutics, Inc.	+31.11%	05/05/2026 against the close of 05/04/2026 Session detail $309.1M market cap (today)	FDA & Regulatory	Fate Therapeutics Selected for U.S. FDA Chemistry, Manufacturing, and Controls Development and Readiness Pilot Program to Support Manufacturing Readiness of FT819 05/05/2026 08:30 ET premarket	Day +1 +27.22% 2026-05-06 Day +5 +25.00% 2026-05-12 Best close within 5 +35.00% 2026-05-07 19.6% of the move was gone five sessions later. Month end +57.78% on 2026-05-29
Close before and after $1.80 to $2.36 split-adjusted Session open, high, low $2.05, $2.36, $1.98 Opening gap +13.89% Close inside the session range 1.00 of the range, where 1.00 is the high Session volume 10,705,860 shares, $25,265,830 Relative volume 8.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
84	RGTI Rigetti Computing, Inc.	+30.57%	05/21/2026 against the close of 05/20/2026 Session detail $5.51B market cap (today)	Contract / Partnership	Rigetti Signs Letter of Intent with U.S. Government for Quantum Computing Research 05/21/2026 07:15 ET premarket	Day +1 +56.52% 2026-05-22 Day +5 +51.30% 2026-05-29 Best close within 5 +60.13% 2026-05-28 Five sessions later the move was 67.8% bigger, at +51.30%. Month end +51.30% on 2026-05-29
Close before and after $16.88 to $22.04 split-adjusted Session open, high, low $18.69, $22.10, $18.40 Opening gap +10.69% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 148,178,611 shares, $3,265,856,586 Relative volume 5.6x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
85	QUCY Quantum Cyber N.V. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards	+30.56%	05/20/2026 against the close of 05/19/2026 Session detail $111.0M market cap (today)	Other Announcement	Quantum Cyber Files Provisional Patent for Quantum-Navigated Amphibious Autonomous Ground Vehicle Platform 05/20/2026 07:30 ET premarket	Day +1 +41.27% 2026-05-21 Day +5 +18.25% 2026-05-28 Best close within 5 +41.27% 2026-05-21 40.3% of the move was gone five sessions later. Month end +1.59% on 2026-05-29
Close before and after $2.52 to $3.29 split-adjusted Session open, high, low $2.27, $3.76, $2.27 Opening gap -9.92% Close inside the session range 0.68 of the range, where 1.00 is the high Session volume 24,113,658 shares, $79,333,935 Relative volume 54.2x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
86	TRT Trio-Tech International	+30.54%	05/14/2026 against the close of 05/13/2026 Session detail $113.7M market cap (today)	Other Announcement	Trio-Tech Reports 124% Q3 Revenue Growth, Driven by Strong Semiconductor Reliability Testing Demand Supporting AI and Automotive Applications 05/14/2026 08:30 ET premarket	Day +1 +86.69% 2026-05-15 Day +5 +23.93% 2026-05-21 Best close within 5 +86.69% 2026-05-15 21.6% of the move was gone five sessions later. Month end +18.34% on 2026-05-29
Close before and after $10.74 to $14.02 split-adjusted Session open, high, low $12.00, $14.48, $11.68 Opening gap +11.73% Close inside the session range 0.84 of the range, where 1.00 is the high Session volume 2,388,554 shares, $33,487,527 Relative volume 3.3x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
87	FCEL FuelCell Energy Inc NEW (DE)	+30.46%	05/21/2026 against the close of 05/20/2026 Session detail $1.43B market cap (today)	Earnings	FuelCell Energy Announces Second Quarter 2026 Results Conference Call on June 8, 2026, at 10:00 A.M. Eastern Time 05/21/2026 07:30 ET premarket FuelCell Energy Elects Cybersecurity Entrepreneur and McKinsey Veteran John Livingston to Board of Directors 05/21/2026	Day +1 +23.69% 2026-05-22 Day +5 +7.12% 2026-05-29 Best close within 5 +23.69% 2026-05-22 76.6% of the move was gone five sessions later. Month end +7.12% on 2026-05-29
Close before and after $20.22 to $26.38 split-adjusted Session open, high, low $19.91, $26.90, $19.74 Opening gap -1.53% Close inside the session range 0.93 of the range, where 1.00 is the high Session volume 22,304,161 shares, $588,383,767 Relative volume 2.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
88	CABA Cabaletta Bio, Inc.	+30.27%	05/04/2026 against the close of 05/01/2026 Session detail $423.9M market cap (today)	Offering / Dilution Rose on dilution	Cabaletta Bio Announces Pricing of $150 Million Underwritten Offering 05/04/2026 06:35 ET premarket	Day +1 +41.16% 2026-05-05 Day +5 +29.93% 2026-05-11 Best close within 5 +41.16% 2026-05-05 1.1% of the move was gone five sessions later. Month end +28.57% on 2026-05-29
Close before and after $2.94 to $3.83 split-adjusted Session open, high, low $3.18, $4.05, $3.16 Opening gap +8.20% Close inside the session range 0.75 of the range, where 1.00 is the high Session volume 29,166,258 shares, $111,706,768 Relative volume 15.5x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
89	OKTA Okta, Inc.	+30.14%	05/29/2026 against the close of 05/28/2026 Session detail $21.43B market cap (at the time of the move, reconstructed)	Earnings	Okta Announces First Quarter Fiscal Year 2027 Financial Results 05/28/2026 16:01 ET after hours Okta to Present at Upcoming Investor Conferences 05/29/2026	Day +1 +47.58% 2026-06-01 Day +5 +25.34% 2026-06-05 Best close within 5 +47.58% 2026-06-01 15.9% of the move was gone five sessions later. Month end +30.14% on 2026-05-29 same session This month ended before the fifth session after the move.
Close before and after $94.72 to $123.27 split-adjusted Session open, high, low $107.54, $124.79, $106.50 Opening gap +13.53% Close inside the session range 0.92 of the range, where 1.00 is the high Session volume 17,583,948 shares, $2,167,573,270 Relative volume 6.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
90	BW Babcock & Wilcox Enterprises, Inc.	+30.06%	05/11/2026 against the close of 05/08/2026 Session detail $1.09B market cap (today)	Earnings	Babcock & Wilcox Enterprises Reports First Quarter 2026 Results 05/11/2026 06:30 ET premarket	Day +1 +35.83% 2026-05-12 Day +5 +38.58% 2026-05-18 Best close within 5 +50.28% 2026-05-15 Five sessions later the move was 28.3% bigger, at +38.58%. Month end +26.89% on 2026-05-29
Close before and after $14.54 to $18.91 split-adjusted Session open, high, low $16.70, $18.99, $15.56 Opening gap +14.86% Close inside the session range 0.98 of the range, where 1.00 is the high Session volume 9,219,680 shares, $174,344,149 Relative volume 3.5x the median of the 20 sessions before the pre-news close Baseline gap 3 calendar days from the pre-news close to the measured session
91	HIMX Himax Technologies, Inc.	+30.01%	05/07/2026 against the close of 05/06/2026 Session detail $2.57B market cap (today)	Earnings	Himax Technologies, Inc. Reports First Quarter 2026 Financial Results; Provides Second Quarter 2026 Guidance 05/07/2026 06:21 ET premarket Himax Technologies, Inc. Declares Cash Dividend for FY2025 05/07/2026	Day +1 +44.28% 2026-05-08 Day +5 +67.72% 2026-05-14 Best close within 5 +67.72% 2026-05-14 Five sessions later the move was 125.7% bigger, at +67.72%. Month end +66.83% on 2026-05-29
Close before and after $12.33 to $16.03 split-adjusted Session open, high, low $15.43, $17.95, $14.89 Opening gap +25.14% Close inside the session range 0.37 of the range, where 1.00 is the high Session volume 24,838,431 shares, $398,160,049 Relative volume 9.0x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
92	TEAM Atlassian Corporation	+29.58%	05/01/2026 against the close of 04/30/2026 Session detail $27.31B market cap (at the time of the move, reconstructed)	Earnings	Atlassian Announces Third Quarter Fiscal Year 2026 Results 04/30/2026 16:05 ET after hours	Day +1 +35.82% 2026-05-04 Day +5 +33.55% 2026-05-08 Best close within 5 +35.82% 2026-05-04 Five sessions later the move was 13.4% bigger, at +33.55%. Month end +56.89% on 2026-05-29
Close before and after $68.59 to $88.88 split-adjusted Session open, high, low $82.92, $90.23, $82.05 Opening gap +20.89% Close inside the session range 0.83 of the range, where 1.00 is the high Session volume 27,384,490 shares, $2,433,933,471 Relative volume 3.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
93	CCRN Cross Country Healthcare Inc	+29.48%	05/07/2026 against the close of 05/06/2026 Session detail $428.1M market cap (today)	M&A / Acquisition	Cross Country Healthcare to be Acquired by Knox Lane in All-Cash Transaction Valued at $437 Million 05/06/2026 17:32 ET after hours	Day +1 +30.37% 2026-05-08 Day +5 +29.87% 2026-05-14 Best close within 5 +30.37% 2026-05-08 Five sessions later the move was 1.3% bigger, at +29.87%. Month end +29.48% on 2026-05-29
Close before and after $10.11 to $13.09 as traded Session open, high, low $13.02, $13.12, $12.99 Opening gap +28.78% Close inside the session range 0.77 of the range, where 1.00 is the high Session volume 5,659,435 shares, $74,082,004 Relative volume 18.4x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
94	DGXX Digi Power X Inc.	+29.37%	05/05/2026 against the close of 05/04/2026 Session detail $442.1M market cap (today)	Contract / Partnership	Digi Power X Signs AI Colocation Agreement with Leading AI Compute Company for 40 MW Data Center in Columbiana, Alabama 05/05/2026 07:30 ET premarket	Day +1 +57.97% 2026-05-06 Day +5 +112.41% 2026-05-12 Best close within 5 +112.41% 2026-05-12 Five sessions later the move was 282.7% bigger, at +112.41%. Month end +97.72% on 2026-05-29
Close before and after $3.95 to $5.11 split-adjusted Session open, high, low $5.34, $5.68, $4.71 Opening gap +35.19% Close inside the session range 0.41 of the range, where 1.00 is the high Session volume 115,837,544 shares, $591,929,850 Relative volume 75.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
95	FIVN FIVE9, INC.	+29.30%	05/01/2026 against the close of 04/30/2026 Session detail $2.89B market cap (today)	Earnings	Five9 Announces First Quarter 2026 Financial Results 04/30/2026 16:05 ET after hours	Day +1 +35.70% 2026-05-04 Day +5 +28.49% 2026-05-08 Best close within 5 +41.05% 2026-05-05 2.8% of the move was gone five sessions later. Month end +41.57% on 2026-05-29
Close before and after $17.20 to $22.24 split-adjusted Session open, high, low $20.18, $23.19, $19.66 Opening gap +17.33% Close inside the session range 0.73 of the range, where 1.00 is the high Session volume 15,302,528 shares, $340,328,223 Relative volume 7.5x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
96	GUTS Fractyl Health, Inc.	+29.20%	05/13/2026 against the close of 05/12/2026 Session detail $88.0M market cap (today)	Earnings	Fractyl Health Reports First Quarter 2026 Financial Results and Business Updates 05/12/2026 16:05 ET after hours	Day +1 +29.97% 2026-05-14 Day +5 +25.52% 2026-05-20 Best close within 5 +29.97% 2026-05-14 12.6% of the move was gone five sessions later. Month end +9.84% on 2026-05-29
Close before and after $0.7340 to $0.9483 split-adjusted Session open, high, low $0.7850, $0.9495, $0.7520 Opening gap +6.95% Close inside the session range 0.99 of the range, where 1.00 is the high Session volume 9,788,429 shares, $9,282,367 Relative volume 5.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
97	OTLK Outlook Therapeutics, Inc.	+29.14%	05/26/2026 against the close of 05/22/2026 Session detail $169.5M market cap (today)	Other Announcement	Outlook Therapeutics Wins Appeal Following Formal Dispute Resolution Process for ONS-5010/LYTENAVA™ (bevacizumab-vikg) 05/26/2026 07:00 ET premarket	Day +1 +88.93% 2026-05-27 Day +5 +162.54% 2026-06-02 Best close within 5 +172.02% 2026-06-01 Five sessions later the move was 457.8% bigger, at +162.54%. Month end +135.56% on 2026-05-29 This month ended before the fifth session after the move.
Close before and after $0.3099 to $0.4002 split-adjusted Session open, high, low $0.4650, $0.5069, $0.3750 Opening gap +50.05% Close inside the session range 0.19 of the range, where 1.00 is the high Session volume 346,266,296 shares, $138,575,772 Relative volume 88.8x the median of the 20 sessions before the pre-news close Baseline gap 4 calendar days from the pre-news close to the measured session
98	LCUT Lifetime Brands, Inc.	+29.08%	05/07/2026 against the close of 05/06/2026 Session detail $199.5M market cap (today)	Earnings	Lifetime Brands, Inc. Reports First Quarter 2026 Financial Results 05/07/2026 07:00 ET premarket	Day +1 +6.10% 2026-05-08 Day +5 +39.14% 2026-05-14 Best close within 5 +39.14% 2026-05-14 Five sessions later the move was 34.6% bigger, at +39.14%. Month end +53.50% on 2026-05-29
Close before and after $5.57 to $7.19 split-adjusted Session open, high, low $5.89, $7.32, $5.45 Opening gap +5.75% Close inside the session range 0.93 of the range, where 1.00 is the high Session volume 246,066 shares, $1,769,215 Relative volume 2.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
99	AMN AMN Healthcare Services	+29.04%	05/08/2026 against the close of 05/07/2026 Session detail $1.34B market cap (today)	Earnings	AMN Healthcare Announces First Quarter 2026 Results 05/07/2026 16:15 ET after hours	Day +1 +34.83% 2026-05-11 Day +5 +27.44% 2026-05-15 Best close within 5 +37.51% 2026-05-13 5.5% of the move was gone five sessions later. Month end +29.04% on 2026-05-29
Close before and after $22.45 to $28.97 split-adjusted Session open, high, low $26.03, $29.00, $24.21 Opening gap +15.95% Close inside the session range 0.99 of the range, where 1.00 is the high Session volume 3,823,841 shares, $110,776,674 Relative volume 6.1x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session
100	VSTS Vestis Corporation	+29.03%	05/12/2026 against the close of 05/11/2026 Session detail $1.91B market cap (today)	Earnings	Vestis Reports Second Quarter 2026 Results and Increases Full Year 2026 Outlook 05/12/2026 07:00 ET premarket	Day +1 +20.97% 2026-05-13 Day +5 +27.31% 2026-05-19 Best close within 5 +31.72% 2026-05-15 5.9% of the move was gone five sessions later. Month end +38.92% on 2026-05-29
Close before and after $9.30 to $12.00 split-adjusted Session open, high, low $11.78, $12.47, $11.03 Opening gap +26.67% Close inside the session range 0.68 of the range, where 1.00 is the high Session volume 9,377,769 shares, $112,533,228 Relative volume 8.8x the median of the 20 sessions before the pre-news close Baseline gap 1 calendar day from the pre-news close to the measured session

NYSE and Nasdaq companies with a market capitalization of $25M or more, measured today. The exchange is the one recorded on each announcement, and a release naming several tickers records one venue for all of them. A session that changed hands for less than $25,000 in total is not ranked, because a percentage set by a handful of shares is a print rather than a move. 811 smaller events this month are held out of this month's eligible pool; switch to include them. 195 events never entered this month's eligible pool, because the ticker is a warrant, a unit, a right or a preferred rather than common stock, is classed today as a fund, a trust or an index product, or carries a stored capitalization above $10 trillion, which is larger than any company has reached. Include the $5M to $25M band

4 rows withhold a market cap because the vendor's stored figure disagrees with the share count and price it is derived from by more than a factor of three, counting the filed all-class share count where one exists.

In May 2026, the median gainer had given back 2.8% of its move five sessions later; the largest catalyst group was Earnings, 48 of the 100 events, at a median of +36.5%.

Close-to-close change on the measured trading session, against the previous close.

Which catalysts drove the board

Swipe the table sideways for the day +5 columns.

Catalyst	Events	Share of board	Median move close to close	Median at day +5	Still above the pre-news close at day +5
Earnings	48	48.0%	+36.5%	+39.2%	97.9% of 48
Other Announcement	20	20.0%	+37.9%	+23.9% of 19	73.7% of 19
M&A / Acquisition	9	9.0%	Fewer than 10 events in this group, so no figures are shown.
Contract / Partnership	8	8.0%	Fewer than 10 events in this group, so no figures are shown.
FDA & Regulatory	4	4.0%	Fewer than 10 events in this group, so no figures are shown.

The day +5 figures are measured over the events in each group that have a five-session close, the count printed beside them, not over every event in the group.

7 other catalyst types, 11 events: Offering / Dilution, Buyback / Dividend, Clinical Trial Results, Guidance Change, Uplisting / Compliance, Crypto & Treasury, Leadership Change.

How much of the move survived

Horizon	Still above the pre-news close close to close	Median change since the measured close as a share of the move
Day +1	100.0% of 99	0.9% further above baseline, of 99
Day +5	93.9% of 99	2.8% given back, of 99
Month end	89.2% of 93	5.6% further above baseline, of 93
Month end falls before day +5 for 10 of these 93 events, so this row is not a later horizon than the one above it. 93 of the 100 events have a month-end close later than the measured session; 6 have it on the measured session itself, and 1 has no month-end close.

Both figures in a row are measured over the events that have a close at that horizon, the count printed beside each of them, not over all 100 events on this board, which is why the denominators differ between rows.

Repeat runners

Some companies move on news more than once. The left list holds the ones that moved twice or more this month; the right list holds the ones that also moved in the months before it. The ranking above shows one row per move, so a name that keeps coming back is only visible here.

Moved twice or more inside May 2026

Two or more ranked moves this month, each on a different trading day.

Symbol	Measured sessions	Best move
AIIORobo.ai Inc.	4Other Announcement, M&A / Acquisition	+116.09%
QUCYQuantum Cyber N.V.	3Other Announcement, Leadership Change	+315.12%

Also risen on news in earlier months

Ranked in at least two of the three months before this one. They are listed whether or not they rank this month, which is why the months are named.

Symbol	Months	Best move
AEHRAehr Test Systems	2026-04, 2026-03, 2026-02	+26.16%
CMPSCOMPASS Pathways Plc	2026-04, 2026-02	+42.04%
ATOMAtomera Incorporated	2026-04, 2026-02	+64.02%
JZXNJiuzi Holdings, Inc.this month too	2026-03, 2026-02	+87.04%
BDMDBaird Medical Investment Holdings Ltd	2026-03, 2026-02	+38.15%
SABRSabre Corporation	2026-03, 2026-02	+36.44%
FATNFatPipe, Inc.	2026-03, 2026-02	+41.30%
BTQBTQ Technologies Corp.	2026-03, 2026-02	+29.37%

What the board was made of

Price before the move

When the announcement landed

Volume against normal

2 events have too little trading history for a relative volume, and are not in the tiers above.

Industry

39 other industries, 49 events

Industry not known: 15.0%

Against April 2026

100 events in the comparable window.

April 2026 median +29.8%, selected from the 9,420 events in that month's eligible pool

May 2026 median +38.4%, 8.6 points above April 2026. May 2026's median is taken over the 100 ranked rows, selected from the 10,067 events in that month's eligible pool.

How this ranking is measured

Close-to-close change on the measured trading session, against the previous close.

An announcement before 16:00 ET is measured on that trading day; one at or after 16:00 ET, or on a weekend, is measured on the next trading day.
One row per company and measured session. Other announcements the company made in the same session are listed inside the row.
A ranking is a coincidence of news and price on the same session, not proof that the news caused the move. Part of an intraday move can precede the announcement.
No Stated Cause marks a release in which the company itself says it knows of no reason for the move, while Other Announcement marks a release these rules could not classify.

Eligibility uses each company's capitalization today, not its capitalization at the time. Archive boards can therefore change as companies grow or shrink.

Prices are adjusted for stock splits the company has done since, so an older row's dollar figures are stated on today's share count and are not the prices that traded that day. The percentage move, the dollar volume and the relative volume are unaffected, because both prices carry the same adjustment. The session's share count carries the adjustment too, so the shares figure beside the dollar volume is that count restated on today's basis rather than the number of shares that changed hands. Where the ticker was retired the price series stops with it and no later adjustment reached it, so those rows are marked as traded and their dollars are the ones that changed hands on the day.

Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.

This archive starts at 2020-04, the first month with ranked moves.