STOCK TITAN

May 2026 Stock Gainers on News, Micro Caps Included

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

Data through the session. 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

+596.53%

Largest, SKK

90.9%

Events still above the pre-news close, day +5

12.1%

Median give-back, day +5

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Rows

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
1 SKK SKK Holdings Limited +596.53% against the close of 05/01/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
M&A / Acquisition SKK Holdings Signs Definitive Asset Purchase Agreement with Rantizo, Inc. to Acquire Drone Assets in Approximately $258.8 Million Asset Acquisition, Establishing Publicly-Traded Operator of Drone-Based Platforms for Commercial Applications

10:15 ET intraday

2 ASTC Astrotech Corporation (DE) under $25M today +459.11% against the close of 05/26/2026
Session detail
$10.2M market cap (today)
Other Announcement Astrotech Corporation Board of Directors Approves Strategic Lunar Resource and Infrastructure Initiative to Advance Future Moon-Based Quantum Computing Manufacturing

08:30 ET premarket

3 QUCY Quantum Cyber N.V. More than one ranked move this month 2+ ranked moves +315.12% against the close of 05/12/2026
Session detail
$60.8M market cap (today)
Other Announcement Quantum Cyber N.V. Secures Exclusive Autonomous Drone Platform as Trump Administration Seeks $55 Billion for Drone Warfare

08:00 ET premarket

4 AKTX Akari Therapeutics plc under $25M today More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards +255.45% against the close of 05/21/2026
Session detail
$18.6M market cap (today)
Clinical Trial Results Akari Therapeutics Reports Breakthrough Preclinical Data Demonstrating Synergistic Activity of AKTX-101 with KRAS Inhibition in KRAS-Mutated Pancreatic Cancer Models

17:01 ET after hours

5 CNSP CNS Pharmaceuticals, Inc. under $25M today +239.23% against the close of 05/01/2026
Session detail
$6.6M market cap (today)
Offering / Dilution Rose on dilution CNS Pharmaceuticals Announces Oversubscribed $22.5 Million Private Placement Financing

07:00 ET premarket

6 PIII P3 Health Partners Inc. +180.15% against the close of 05/14/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Earnings P3 Health Partners Announces First Quarter 2026 Results

16:05 ET after hours

7 PHOE Phoenix Asia Holdings Limited +168.51% against the close of 05/04/2026
Session detail
$401.7M market cap (today)
M&A / Acquisition Phoenix Asia Holdings Limited Announces Entering into Stock Acquisition Agreement and Convertible Promissory Note

16:15 ET after hours

8 LESL Leslie's, Inc. +144.76% against the close of 05/13/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Earnings Leslie’s, Inc. Announces Second Quarter 2026 Financial Results

16:15 ET after hours

9 DEVS DevvStream Corp. Also on the opposite board this month on both boards +140.00% against the close of 05/28/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Reverse Merger / Shell DevvStream, XCF Global, and Southern Energy Renewables Confirm Three-Party Business Combination Remains on Track

09:15 ET premarket

10 AEHL Antelope Enterprise Holdings Limited +135.34% against the close of 05/07/2026
Session detail
$126.3M market cap (today)
Buyback / Dividend Antelope Enterprise Holdings Limited Announces $190,000 in Realized Gains from its “Genius Plan” and Authorizes an $95,000 Share Repurchase Program, Validating its Sustainable Capital Recycling Framework

08:20 ET premarket

11 INM InMed Pharmaceuticals Inc. under $25M today +135.05% against the close of 05/18/2026
Session detail
$9.2M market cap (today)
M&A / Acquisition InMed Pharmaceuticals & Mentari Therapeutics Announce Merger to Advance Migraine Prevention Therapies

08:00 ET premarket

12 TDIC Dreamland Limited under $25M today +126.92% against the close of 05/11/2026
Session detail
$6.4M market cap (today)
Contract / Partnership Dreamland Limited’s Subsidiary Trendic International Limited and LinkFung Innovation Limited Enter Into MoU to Explore Development, Implementation, and Deployment of a Comprehensive AI-Powered Intelligent Image Library Platform

05:12 ET premarket

13 STG Sunlands Technology Group +125.74% against the close of 05/28/2026
Session detail
$30.7M market cap (today)
Buyback / Dividend Sunlands Technology Group Announces $50 Million Share Repurchase Program

04:30 ET premarket

14 QUCY Quantum Cyber N.V. More than one ranked move this month 2+ ranked moves +123.88% against the close of 05/13/2026
Session detail
$60.8M market cap (today)
Leadership Change Former Trump Administration VA Secretary Peter O'Rourke Sr. Joins Quantum Cyber's Board of Directors

08:01 ET premarket

15 SALM Salem Media Group Inc A +121.65% against the close of 05/12/2026
Session detail
$31.7M market cap (today)
M&A / Acquisition Salem Media to Be Acquired by WaterStone in Major Growth Deal

17:00 ET after hours

16 AGL agilon health, inc. +117.81% against the close of 05/06/2026
Session detail
$1.47B market cap (today)
Earnings agilon health Reports First Quarter 2026 Results

16:05 ET after hours

17 BWEN Broadwind, Inc. Also on the opposite board this month on both boards +117.24% against the close of 05/11/2026
Session detail
$75.0M market cap (today)
Earnings Broadwind Announces First Quarter 2026 Results

07:00 ET premarket

18 AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves +116.09% against the close of 05/13/2026
Session detail
$65.7M market cap (today)
Other Announcement Robo.ai Subsidiary Neurovia AI Launches NeuroStream™ Technology Platform to Build Physical AI Visual Data Infrastructure

05:00 ET premarket

19 SNAL Snail, Inc. under $25M today +115.10% against the close of 05/13/2026
Session detail
$20.0M market cap (today)
Earnings Snail, Inc. Reports First Quarter 2026 Financial Results

16:05 ET after hours

20 MYND Mynd.ai, Inc. under $25M today +114.50% against the close of 05/28/2026
Session detail
$14.7M market cap (today)
Listing / Compliance Mynd.ai Regains Compliance with NYSE American Filing Requirements Following Submission of Annual Report on Form 20-F

14:00 ET intraday

21 BIYA Baiya International Group Inc under $25M today Also on the opposite board this month on both boards +110.53% against the close of 05/21/2026
Session detail
$8.4M market cap (today)
Crypto & Treasury "Ark Plan" Renamed to "Binance Plan": Baiya International Group Inc. Establishes $1 Million Strategic BNB Position

08:30 ET premarket

22 MNTS Momentus Inc. +109.76% against the close of 05/22/2026
Session detail
$40.9M market cap (today)
Other Announcement Momentus Grants Inducement Awards to Six New Employees

17:00 ET after hours

23 WGRX Wellgistics Health, Inc. +108.38% against the close of 05/15/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Earnings (date set) Wellgistics Health to Announce First Quarter 2026 Financials on Tuesday May 19, 2026

16:01 ET after hours

24 CUE Cue Biopharma, Inc. +106.38% against the close of 04/30/2026
Session detail
$151.5M market cap (today)
Leadership Change 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

16:05 ET after hours

25 AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves +103.91% against the close of 05/12/2026
Session detail
$65.7M market cap (today)
M&A / Acquisition Robo.ai Appoints Abu Dhabi Tech Executive as CTO of the Newly Acquired AI Data Processing Company, Neurovia

05:00 ET premarket

26 EVC Entravision Communication +93.22% against the close of 05/05/2026
Session detail
$638.6M market cap (today)
Earnings Entravision Reports First Quarter 2026 Results

16:05 ET after hours

27 ATRA Atara Biotherapeutics, Inc +92.82% against the close of 05/06/2026
Session detail
$82.3M market cap (today)
FDA & Regulatory Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel

08:05 ET premarket

28 HOTH Hoth Therapeutics, Inc. also RKTO +92.09% against the close of 05/26/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
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

08:11 ET premarket

29 BZFD BuzzFeed, Inc. +90.44% against the close of 05/11/2026
Session detail
$80.6M market cap (today)
Other Announcement BuzzFeed, Inc. Announces Proposed Majority Stake Investment by Byron Allen’s Family Office

16:55 ET after hours

30 PN Also on the opposite board this month on both boards +89.18% 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

16:15 ET after hours

31 INOD Innodata Inc. +86.00% against the close of 05/07/2026
Session detail
$1.44B market cap (today)
Earnings Innodata Reports Record First Quarter 2026 Results

16:05 ET after hours

32 REPL Replimune Group, Inc. +85.68% against the close of 05/28/2026
Session detail
$1.96B market cap (today)
FDA & Regulatory Replimune Announces Planned RP1 BLA Resubmission Following Productive Discussion with FDA

08:00 ET premarket

33 QTTB Q32 Bio Inc. +81.24% against the close of 05/26/2026
Session detail
$260.8M market cap (today)
Offering / Dilution Rose on dilution Q32 Bio Announces $55 Million Private Placement Financing

08:00 ET premarket

34 MOBX Mobix Labs, Inc. under $25M today +78.74% against the close of 05/13/2026
Session detail
$14.1M market cap (today)
M&A / Acquisition Mobix Labs to Acquire U.S. Rare Earth and Critical Minerals Company Powering Defense and National Security

08:01 ET premarket

35 YOOV Concorde International Group Ltd +76.17% against the close of 05/13/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Contract / Partnership Concorde International Group Secures Multi-Year Contracts Worth Over US$10 Million for Integrated Security Solutions in Singapore

07:00 ET premarket

36 BRAI Braiin Limited +74.20% 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

08:30 ET premarket

37 BLZE Backblaze, Inc. +63.58% against the close of 05/04/2026
Session detail
$518.7M market cap (today)
Earnings Backblaze Announces First Quarter 2026 Financial Results

16:05 ET after hours

38 EVER EverQuote, Inc. +63.04% against the close of 05/04/2026
Session detail
$1.03B market cap (today)
Earnings EverQuote Announces First Quarter 2026 Financial Results

16:05 ET after hours

39 HTCO High-Trend International Group under $25M today Also on the opposite board this month on both boards +60.00% against the close of 05/11/2026
Session detail
$12.5M market cap (today)
Other Announcement High-Trend International Group Class A Shareholders Approve Major Corporate Governance Enhancements

16:30 ET after hours

40 GBTG Global Business Travel Group, Inc. +57.50% against the close of 05/01/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
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

07:30 ET premarket

41 OSS One Stop Systems, Inc. +56.91% against the close of 05/05/2026
Session detail
$122.7M market cap (today)
Earnings One Stop Systems Reports Q1 2026 Results

08:00 ET premarket

42 ESPR Esperion Therapeutics, Inc. +55.50% against the close of 04/30/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
M&A / Acquisition Esperion to be Acquired by ARCHIMED

07:00 ET premarket

43 RXT Rackspace Technology, Inc. +55.07% against the close of 05/06/2026
Session detail
$684.3M market cap (today)
Contract / Partnership Rackspace Technology and AMD Sign Memorandum of Understanding to Establish New Category of Governed Enterprise AI Infrastructure

08:00 ET premarket

44 MTVA MetaVia Inc. under $25M today +53.72% against the close of 05/19/2026
Session detail
$8.3M market cap (today)
Other Announcement MetaVia Highlights Peer-Reviewed Publication Supporting the Anti-Fibrotic Potential of Vanoglipel in MASH

08:00 ET premarket

45 SLQT SelectQuote, Inc. +52.43% against the close of 05/04/2026
Session detail
$73.5M market cap (today)
Earnings SelectQuote, Inc. Reports Third Quarter of Fiscal Year 2026 Results

07:00 ET premarket

46 STRL Sterling Infrastructure, Inc. +52.22% against the close of 05/04/2026
Session detail
$26.42B market cap (at the time of the move, reconstructed)
Earnings Sterling Reports Record First Quarter Results and Raises Full Year 2026 Guidance

16:05 ET after hours

47 GLE Global Engine Group Holding Limited under $25M today +52.08% against the close of 05/06/2026
Session detail
$5.5M market cap (today)
Crypto & Treasury Global Engine Group Holding Limited and Angkasa-X Holdings Corp. Enter Into Memorandum of Understanding to Explore Integration of Satellite Networks, Data Infrastructure, and Blockchain Technology to Support Artificial Intelligence (AI) Applications

16:15 ET after hours

48 TLIH Ten-League International Holdings Limited under $25M today +50.80% against the close of 04/30/2026
Session detail
$16.2M market cap (today)
Earnings Ten-League International Holdings Limited Reports Fiscal Year 2025 Financial Results

16:05 ET after hours

49 AKTX Akari Therapeutics plc under $25M today More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards +49.85% against the close of 05/20/2026
Session detail
$18.6M market cap (today)
Offering / Dilution Rose on dilution Akari Therapeutics Announces $5.5 Million Private Placement Offering

08:30 ET premarket

50 VELO Velo3D, Inc. +49.43% against the close of 05/12/2026
Session detail
$189.8M market cap (today)
Earnings Velo3D Announces First Quarter 2026 Financial Results

16:05 ET after hours

51 SLE Super League Enterprise, Inc. under $25M today +48.40% against the close of 05/14/2026
Session detail
$13.4M market cap (today)
Earnings Super League Reports First Quarter 2026 Financial Results, Advancing Transition from Corporate Restructuring to Operational Execution

07:30 ET premarket

52 JZXN Jiuzi Holdings, Inc. +48.07% 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

08:15 ET premarket

53 VTIX Virtuix Holdings Inc. under $25M today +46.33% against the close of 05/26/2026
Session detail
$18.8M market cap (today)
Contract / Partnership Virtuix Selected by U.S. Air Force for AI Military Platform

09:15 ET premarket

54 AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves +45.96% against the close of 05/07/2026
Session detail
$65.7M 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

05:00 ET premarket

55 AMBQ Ambiq Micro, Inc. +45.33% against the close of 05/11/2026
Session detail
$1.08B market cap (today)
Earnings Ambiq Reports First Quarter 2026 Financial Results

07:30 ET premarket

56 OSG Octave Specialty Group, Inc. +43.36% against the close of 05/06/2026
Session detail
$225.7M market cap (today)
Earnings Octave Specialty Group Reports First Quarter 2026 Results

16:35 ET after hours

57 POET POET Technologies Inc. +43.15% against the close of 05/13/2026
Session detail
$880.9M market cap (today)
Other Announcement POET Technologies and Lumilens Advance Wafer-Level Photonic Integration for Next-Generation AI Optical Networks

07:00 ET premarket

58 PRZO ParaZero Technologies Ltd. under $25M today +42.48% against the close of 05/28/2026
Session detail
$14.6M market cap (today)
Other Announcement ParaZero Secured Full Scale Production Capacity to Support Growing Demand for DefendAir Counter-Drone Systems

07:30 ET premarket

59 FSEA First Seacoast Bancorp, Inc. +41.99% against the close of 05/04/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
M&A / Acquisition Cambridge Financial Group, Inc. and First Seacoast Bancorp, Inc. Agree to Merge

07:30 ET premarket

60 ATYR aTyr Pharma, Inc. under $25M today Also on the opposite board this month on both boards +41.42% against the close of 05/13/2026
Session detail
Market cap is not shown because the stored figure disagrees with the share count and price it is derived from.
Other Announcement aTyr Pharma to Participate in Upcoming Investor Conferences

16:01 ET after hours

61 BLMN Bloomin' Brands, Inc. +40.97% against the close of 05/05/2026
Session detail
$875.9M market cap (today)
Earnings Bloomin’ Brands Announces 2026 Q1 Financial Results

06:30 ET premarket

62 DOCN DigitalOcean Holdings, Inc. +40.40% 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

07:00 ET premarket

63 GTBP GT Biopharma Inc. under $25M today +40.36% against the close of 05/13/2026
Session detail
$9.5M market cap (today)
Clinical Trial Results GT Biopharma Announces First Patient Dosed in Phase 1 Trial of GTB-5550, a B7-H3-Targeted Natural Killer (NK) Cell Engager for Solid Tumors

08:30 ET premarket

64 MLGO MicroAlgo, Inc. +39.95% against the close of 05/19/2026
Session detail
$27.9M market cap (today)
Other Announcement MicroAlgo Inc. Develops Quantum Image Edge Extraction Algorithm for Noisy Images

09:00 ET premarket

65 FLNC Fluence Energy, Inc. +39.90% against the close of 05/06/2026
Session detail
$1.02B market cap (today)
Earnings Fluence Energy, Inc. Reports Second Quarter 2026 Results; Reaffirms Fiscal Year 2026 Guidance

16:05 ET after hours

66 WEST Westrock Coffee Company +39.83% against the close of 05/07/2026
Session detail
$924.5M market cap (today)
Earnings Westrock Coffee Company Reports First Quarter 2026 Results and Reaffirms 2026 Outlook

16:05 ET after hours

67 FJET Starfighters Space, Inc. +39.81% against the close of 05/21/2026
Session detail
$47.2M market cap (today)
Other Announcement Starfighters Space (NYSE American: FJET) Advances STARLAUNCH Program and Commercial Space Development Through Strategic $17.5 Million Investment

06:00 ET premarket

68 FLEX Flex Ltd. +39.69% 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

16:05 ET after hours

69 AIIO Robo.ai Inc. More than one ranked move this month 2+ ranked moves +39.30% against the close of 05/15/2026
Session detail
$65.7M market cap (today)
Other Announcement Robo.ai Subsidiary Neurovia AI Debuts in the International Exhibition for National Security and Resilience Abu Dhabi 2026

05:00 ET premarket

70 UONE Urban One, Inc. under $25M today +39.24% against the close of 04/30/2026
Session detail
$19.4M market cap (today)
M&A / Acquisition Urban One Announces Agreements to Acquire Dallas Radio Stations KKDA and KRNB and to Sell KZMJ

12:15 ET intraday

71 XMTR Xometry, Inc. +39.18% against the close of 05/06/2026
Session detail
$6.38B market cap (today)
Earnings Xometry Reports Record First Quarter 2026 Results

07:05 ET premarket

72 APPS Digital Turbine, Inc. +38.88% against the close of 05/26/2026
Session detail
$1.12B market cap (today)
Earnings Digital Turbine Reports Fiscal 2026 Fourth Quarter and Fiscal Year 2026 Financial Results

16:05 ET after hours

73 AKTX Akari Therapeutics plc under $25M today More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards +38.46% against the close of 05/27/2026
Session detail
$18.6M market cap (today)
Other Announcement Akari Therapeutics Discusses Breakthrough Potential of AKTX-101 and Novel Spliceosome-Modulating ADC Platform in Virtual Investor “What This Means” Segment Following ASCO Abstract Acceptance

09:17 ET premarket

74 APT Alpha Pro Tech, Ltd. +37.87% against the close of 05/06/2026
Session detail
$56.7M market cap (today)
Earnings Alpha Pro Tech, Ltd. Announces First Quarter 2026 Financial Results

09:00 ET premarket

75 IPWR Ideal Power Inc. +37.17% against the close of 05/13/2026
Session detail
$40.6M market cap (today)
Earnings Ideal Power Reports First Quarter 2026 Financial Results

09:20 ET premarket

76 FENC Fennec Pharmaceuticals Inc. +36.48% against the close of 05/13/2026
Session detail
$375.2M market cap (today)
Earnings Fennec Pharmaceuticals Reports First Quarter 2026 Financial Results and Provides Business Update

06:30 ET premarket

77 SNOW Snowflake Inc. +36.48% 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

16:05 ET after hours

78 SPCE Virgin Galactic Holdings, Inc. +36.42% against the close of 05/28/2026
Session detail
$379.0M market cap (today)
Other Announcement Virgin Galactic Announces Notice of Settlement of Derivative Actions

16:33 ET after hours

79 BOOM DMC Global Inc. +36.08% against the close of 04/30/2026
Session detail
$182.0M market cap (today)
Earnings DMC Global Reports First Quarter Financial Results

16:05 ET after hours

80 PS Pershing Square Inc. +35.68% against the close of 04/30/2026
Session detail
$15.84B market cap (at the time of the move, reconstructed)
Listing / Compliance 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

20:14 ET after hours

81 SEGG Sports Entertainment Gaming Global Corporation under $25M today +35.64% against the close of 05/05/2026
Session detail
$7.3M market cap (today)
M&A / Acquisition SEGG Media Reports 1,400% Pro Forma Revenue Growth Following Acquisition of Veloce Media Group

10:15 ET intraday

82 HUT Hut 8 Corp. +35.31% against the close of 05/05/2026
Session detail
$14.06B market cap (at the time of the move, reconstructed)
Contract / Partnership 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

06:30 ET premarket

83 IMVT Immunovant, Inc. +35.26% against the close of 05/19/2026
Session detail
$6.00B market cap (today)
Earnings Immunovant Provides Corporate Updates and Reports Financial Results for the Fourth Quarter and Fiscal Year Ended March 31, 2026

07:00 ET premarket

84 XGN Exagen Inc. +34.92% against the close of 05/08/2026
Session detail
$202.0M market cap (today)
Earnings Exagen Inc. Reports First Quarter 2026 Results

08:00 ET premarket

85 RKLB Rocket Lab Corporation +34.22% 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

16:05 ET after hours

86 AVTX Avalo Therapeutics, Inc. +34.13% against the close of 05/05/2026
Session detail
$388.8M market cap (today)
Clinical Trial Results Avalo Therapeutics Achieves Positive Topline Results in Phase 2 LOTUS Trial of Abdakibart (AVTX-009) in Moderate to Severe Hidradenitis Suppurativa

16:01 ET after hours

87 ZTEK Zentek Ltd. +34.06% against the close of 05/05/2026
Session detail
Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.
Other Announcement Zentek Accepting Canadian Commercial Orders for ZenGUARD(TM) Enhanced Air Filters Following Health Canada Regulatory Classification

12:00 ET intraday

88 SNES SenesTech, Inc. under $25M today +34.01% against the close of 05/06/2026
Session detail
$6.7M market cap (today)
Leadership Change SenesTech Appoints Michael Edell as President and Chief Executive Officer to Drive Revenue Growth and Scalable Sales Channels

08:30 ET premarket

89 CERS Cerus Corp +33.99% against the close of 04/30/2026
Session detail
$471.6M market cap (today)
Earnings Cerus Corporation Announces First Quarter 2026 Financial Results

16:01 ET after hours

90 SACH Sachem Capital Corp. +33.98% against the close of 05/15/2026
Session detail
$38.8M 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

06:10 ET premarket

91 HYLN Hyliion Holdings Corp. +33.96% against the close of 05/12/2026
Session detail
$562.6M market cap (today)
Earnings Hyliion Holdings Reports First-Quarter 2026 Financial Results

16:05 ET after hours

92 PD PagerDuty, Inc. +33.74% against the close of 05/28/2026
Session detail
$1.31B market cap (today)
Earnings PagerDuty Announces First Quarter Fiscal 2027 Financial Results

16:05 ET after hours

93 QBTS D-Wave Quantum Inc. +33.37% against the close of 05/20/2026
Session detail
$3.94B 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

06:47 ET premarket

94 VRDN Viridian Therapeutics, Inc. +33.36% against the close of 05/04/2026
Session detail
$2.85B 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

07:00 ET premarket

95 BOT RoboStrategy, Inc. +32.88% against the close of 05/14/2026
Session detail
$579.0M 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

08:30 ET premarket

96 EDSA Edesa Biotech, Inc. +32.78% against the close of 05/18/2026
Session detail
$30.8M market cap (today)
Other Announcement Edesa Biotech to Present New Data on Paridiprubart in Acute Kidney Injury at European Nephrology Conference

09:15 ET premarket

97 DELL Dell Technologies Inc. +32.76% 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

16:05 ET after hours

98 RCAT Red Cat Holdings, Inc. +32.61% against the close of 05/27/2026
Session detail
$681.1M 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

11:00 ET intraday

99 BDSX Biodesix, Inc. +32.56% against the close of 05/04/2026
Session detail
$222.1M market cap (today)
Earnings Biodesix Announces First Quarter 2026 Results and Highlights

16:01 ET after hours

100 LIFE Ethos Technologies Inc. +32.31% against the close of 05/06/2026
Session detail
$2.66B market cap (today)
Earnings Ethos Reports First Quarter Fiscal Year 2026 Financial Results

16:05 ET after hours

NYSE and Nasdaq companies with a market capitalization of $5M or more, measured today, including the $5M to $25M band. 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. 102 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. Exclude the $5M to $25M band

1 event was left out of this board because the measured session changed hands for less than $25,000 in total, so the percentage prices a handful of shares rather than a move anyone could have taken.

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 12.1% of its move five sessions later; the largest catalyst group was Earnings, 39 of the 100 events, at a median of +40.4%.

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

NYSE and Nasdaq companies with a market capitalization of $5M or more, measured today, including the $5M to $25M band. 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.

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 39 39.0% +40.4% +43.8% 94.9% of 39
Other Announcement 21 21.0% +41.4% +28.6% of 20 70.0% of 20
M&A / Acquisition 13 13.0% +78.7% +58.4% 100.0% of 13
Contract / Partnership 7 7.0% Fewer than 10 events in this group, so no figures are shown.
Clinical Trial Results 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, 16 events: Offering / Dilution, Buyback / Dividend, Leadership Change, FDA & Regulatory, Listing / Compliance, Crypto & Treasury, Reverse Merger / Shell.

How much of the move survived

Horizon Still above the pre-news close (close-to-close basis) Median change since the measured close as a share of the move
Day +1 100.0% of 99 4.1% given back, of 99
Day +5 90.9% of 99 12.1% given back, of 99
Month end 85.7% of 91 0.0% given back, of 91
Month end falls before day +5 for 12 of these 91 events, so this row is not a later horizon than the one above it. 91 of the 100 events have a month-end close later than the measured session; 8 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.

SymbolMeasured sessionsBest move
AIIORobo.ai Inc. 4Other Announcement, M&A / Acquisition +116.09%
AKTXAkari Therapeutics plc 3Clinical Trial Results, Offering / Dilution, Other Announcement +255.45%
QUCYQuantum Cyber N.V. 2Other 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.

SymbolMonthsBest move
MOBXMobix Labs, Inc.this month too 2026-04, 2026-03, 2026-02 +532.77%
UCARU Power Limited 2026-04, 2026-03 +331.63%
MIMIMint Incorporation Limited 2026-04, 2026-02 +104.12%
PMNTPerfect Moment Ltd 2026-04, 2026-03 +74.73%
CMPSCOMPASS Pathways Plc 2026-04, 2026-02 +42.04%
ATOMAtomera Incorporated 2026-04, 2026-02 +64.02%
GXAIGaxos.ai Inc. 2026-03, 2026-02 +45.97%
AIMAIM ImmunoTech Inc. 2026-03, 2026-02 +58.23%
SUNESUNation Energy, Inc. 2026-03, 2026-02 +42.28%
EPOWE-Power Inc. 2026-03, 2026-02 +28.86%

What the board was made of

Price before the move

  • Under $113 events, 13.0%
  • $1 to $536 events, 36.0%
  • $5 to $2035 events, 35.0%
  • Over $2016 events, 16.0%

When the announcement landed

  • Pre-market55.0%
  • Intraday6.0%
  • After hours39.0%

Volume against normal

  • Under 5x7 events, 7.1%
  • 5x to 20x30 events, 30.6%
  • Over 20x61 events, 62.2%

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

Industry

  • Pharmaceutical preparations16 events, 16.0%
  • Prepackaged software6 events, 6.0%
  • Biological products (excluding diagnostic substances)5 events, 5.0%
  • Computer programming, data processing, etc.3 events, 3.0%
  • Semiconductors & related devices3 events, 3.0%
  • Computer processing & data preparation2 events, 2.0%

37 other industries, 43 events

Industry not known: 22.0%

Against April 2026

100 events from April 2026 in the comparable window.

April 2026 median +42.3%, selected from the 8,856 events in that month's eligible pool.

May 2026 median +48.9%, 6.6 points above April 2026. May 2026's median is taken over the 100 ranked rows, selected from the 9,581 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.

Market cap is not shown because the two figures our data vendors report for it are 10 times or more apart, and we cannot tell which one is right.

NYSE and Nasdaq companies with a market capitalization of $5M or more, measured today, including the $5M to $25M band. 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.

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