December 2025 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 , 21 of 22 completed market sessions produced ranked moves. That date is the last ranked session, not the last priced one, so follow-through dates run later.
Whole board, unfiltered
100
Ranked gains
+371.07%
Largest, CAPR
88.9%
Above baseline, day +5
12.8%
Median give-back, day +5
Filter and sort
100 ranked gains in December 2025
Skip the ranked rows and go to the month summaryEvery 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 | CAPR Capricor Therapeutics Inc | +371.07% |
against the close of 12/02/2025
Session detail |
Clinical Trial Results |
Capricor Therapeutics Announces Positive Topline Results from Pivotal Phase 3 HOPE-3 Study of Deramiocel in Duchenne Muscular Dystrophy
07:20 ET premarket |
5.5% of the move was gone five sessions later. Month end +353.77% on 2025-12-31 |
| 2 | WVE Wave Life Sciences Ltd. | +147.26% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Wave Life Sciences to Announce Interim Data from the Phase 1 INLIGHT Trial of WVE-007 (INHBE) for Obesity on Monday, December 8, 2025
16:00 ET after hours |
21.8% of the move was gone five sessions later. Month end +126.97% on 2025-12-31 |
| 3 | PLRZ Polyrizon Ltd. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +131.96% |
against the close of 12/01/2025
Session detail |
Other Announcement |
Polyrizon Announces Successful Completion of Key Manufacturing Upscaling Milestone for Its Nasal Spray Platform
07:55 ET premarket |
Five sessions later the move was 81.3% bigger, at +239.24%. Month end +168.67% on 2025-12-31 |
| 4 | BNAI Brand Engagement Network Inc. | +108.75% |
against the close of 12/26/2025
Session detail |
Other Announcement |
Brand Engagement Network Finalizes Agreement for a Proprietary AI Engagement Solution with a Leading Global Ad Agency for One of the World's Top Pharmaceutical Companies
06:15 ET premarket |
Five sessions later the move was 165.9% bigger, at +289.17%. Month end +93.33% on 2025-12-31 This month ended before the fifth session after the move. |
| 5 | PLRZ Polyrizon Ltd. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +104.51% |
against the close of 12/03/2025
Session detail |
Other Announcement |
From Lab to Global Impact: Polyrizon's Journey to Potentially Redefining Next-Generation Nasal Protection
07:32 ET premarket |
28.3% of the move was gone five sessions later. Month end +19.75% on 2025-12-31 |
| 6 | GPCR Structure Therapeutics Inc. | +102.49% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Structure Therapeutics to Report Data from ACCESS Clinical Program of Oral Small Molecule GLP-1 Receptor Agonist, Aleniglipron, on December 8, 2025
18:20 ET after hours |
14.6% of the move was gone five sessions later. Month end +101.24% on 2025-12-31 |
| 7 | SIDU Sidus Space, Inc. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +97.41% |
against the close of 12/19/2025
Session detail |
Contract / Partnership |
Sidus Space Awarded Contract Under Missile Defense Agency's SHIELD IDIQ Program
08:32 ET premarket |
Five sessions later the move was 33.6% bigger, at +130.17%. Month end +170.69% on 2025-12-31 |
| 8 | PMI Picard Medical, Inc. | +82.67% |
against the close of 12/03/2025
Session detail |
Other Announcement |
Picard Medical, Inc. and SynCardia Systems LLC CEO to Present at CSI Focus D-HF 2025 in Frankfurt, Germany
16:05 ET after hours |
73.0% of the move was gone five sessions later. Month end -13.37% on 2025-12-31 |
| 9 | EB Eventbrite, Inc. | +78.63% |
against the close of 12/01/2025
Session detail |
M&A / Acquisition |
Eventbrite Enters into Definitive Agreement to Be Acquired by Bending Spoons for Roughly $500 Million to Accelerate Eventbrite’s Next Phase of Growth
07:30 ET premarket |
Five sessions later the move was 0.5% bigger, at +79.03%. Month end +79.44% on 2025-12-31 |
| 10 | OMER Omeros Corporation | +75.54% |
against the close of 12/23/2025
Session detail |
FDA & Regulatory |
FDA Approves Omeros’ YARTEMLEA® – First and Only Therapy Indicated for TA-TMA
09:00 ET premarket |
Five sessions later the move was 15.4% bigger, at +87.20%. Month end +96.29% on 2025-12-31 This month ended before the fifth session after the move. |
| 11 | QTTB Q32 Bio Inc. | +74.43% |
against the close of 11/28/2025
Session detail |
Other Announcement |
Q32 Bio Sells Complement Inhibitor ADX-097
07:00 ET premarket |
22.1% of the move was gone five sessions later. Month end +51.60% on 2025-12-31 |
| 12 | PETS PetMed Express, Inc. More than one ranked move this month 2+ ranked moves | +68.36% |
against the close of 12/10/2025
Session detail |
M&A / Acquisition |
PetMed Express Comments on Unsolicited and Non-Binding Acquisition Proposal Received From SilverCape Investments Limited
09:45 ET intraday |
Five sessions later the move was 55.4% bigger, at +106.21%. Month end +80.79% on 2025-12-31 |
| 13 | AZI Autozi Internet Technology (Global) Ltd. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +64.47% |
against the close of 12/18/2025
Session detail |
Other Announcement |
Strategic Investor CDIB Confirms $90 Million Initial Investment in Autozi at $3.50 per Share
07:15 ET premarket |
Five sessions later the move was 112.3% bigger, at +136.84%. Month end +105.92% on 2025-12-31 |
| 14 | SNCR Synchronoss Technologies Inc | +64.34% |
against the close of 12/03/2025
Session detail |
M&A / Acquisition |
Synchronoss Technologies, Inc. to Be Acquired by Lumine Group
09:00 ET premarket |
4.1% of the move was gone five sessions later. Month end +61.51% on 2025-12-31 |
| 15 | ATHA Athira Pharma, Inc. | +62.52% |
against the close of 12/17/2025
Session detail |
Clinical Trial Results |
Athira Pharma Announces Exclusive License to Lasofoxifene Phase 3 Development Program for Metastatic Breast Cancer Candidate and a Financing for up to $236 Million
07:02 ET premarket |
Five sessions later the move was 29.4% bigger, at +80.89%. Month end +83.07% on 2025-12-31 |
| 16 | ANGH Anghami Inc. | +62.50% |
against the close of 12/30/2025
Session detail |
Earnings |
ANGHAMI REPORTS H1 2025 FINANCIAL RESULTS; MARKED BY TOPLINE GROWTH AND TRANSFORMATIVE DEAL WITH WARNER BROS. DISCOVERY
17:14 ET after hours |
Five sessions later the move was 31.7% bigger, at +82.33%. Month end +62.50% on 2025-12-31 same session This month ended before the fifth session after the move. |
| 17 | AXIL AXIL Brands, Inc. | +59.36% |
against the close of 12/10/2025
Session detail |
Contract / Partnership |
AXIL Brands Announces National Retail Distribution Agreement with Walmart
05:00 ET premarket |
Five sessions later the move was 13.4% bigger, at +67.33%. Month end +38.05% on 2025-12-31 |
| 18 | RILY | +53.76% |
against the close of 12/15/2025
Session detail |
Earnings |
B. Riley Financial Reports Second Quarter 2025 Financial Results
16:01 ET after hours |
54.5% of the move was gone five sessions later. Month end +25.54% on 2025-12-31 |
| 19 | CPAC CEMENTOS PACASMAYO S.A.A. | +52.22% |
against the close of 12/15/2025
Session detail |
Other Announcement |
Cementos Pacasmayo S.A.A. Announced Today That the Swiss Company Holcim, the World's Leading Cement Company, Has Signed an Agreement to Purchase Inversiones Aspi, of the Hochschild Group, Which Controls 50.01% of Cementos PACASMAYO
08:30 ET premarket |
11.8% of the move was gone five sessions later. Month end +49.07% on 2025-12-31 |
| 20 | HYMC Hycroft Mining Holding Corporation | +49.33% |
against the close of 12/19/2025
Session detail |
Other Announcement |
Hycroft Reports Higher Grade in Vortex Silver System
08:30 ET premarket |
12.8% of the move was gone five sessions later. Month end +44.76% on 2025-12-31 |
| 21 | DBI Designer Brands Inc. | +48.45% |
against the close of 12/08/2025
Session detail |
Earnings |
Designer Brands Inc. Reports Third Quarter 2025 Financial Results
06:45 ET premarket |
Five sessions later the move was 51.5% bigger, at +73.40%. Month end +53.20% on 2025-12-31 |
| 22 | ISPO Inspirato Incorporated | +46.83% |
against the close of 12/16/2025
Session detail |
M&A / Acquisition |
Inspirato Announces Agreement to be Acquired by Exclusive Investments LLC
09:15 ET premarket |
0.7% of the move was gone five sessions later. Month end +46.83% on 2025-12-31 |
| 23 | FULC Fulcrum Therapeutics, Inc. | +45.96% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Fulcrum Therapeutics Announces Positive Initial Results from the 20 mg Dose Cohort of the Phase 1b PIONEER Trial of Pociredir in Sickle Cell Disease at the 67th American Society of Hematology Annual Meeting
17:30 ET after hours |
1.7% of the move was gone five sessions later. Month end +27.08% on 2025-12-31 |
| 24 | PLAB Photronics Inc | +45.39% |
against the close of 12/09/2025
Session detail |
Earnings |
Photronics Reports Full Year and Fourth Quarter Fiscal 2025 Results
07:00 ET premarket |
37.7% of the move was gone five sessions later. Month end +24.56% on 2025-12-31 |
| 25 | DHIL Diamond Hill Investment Group | +44.48% |
against the close of 12/10/2025
Session detail |
M&A / Acquisition |
Diamond Hill to Be Acquired by First Eagle Investments
07:30 ET premarket |
0.7% of the move was gone five sessions later. Month end +44.28% on 2025-12-31 |
| 26 | VELO Velo3D, Inc. | +43.95% |
against the close of 12/19/2025
Session detail |
Offering / Dilution Rose on dilution |
Velo3D Announces $30 Million Private Placement of Common Stock
08:15 ET premarket |
21.4% of the move was gone five sessions later. Month end +26.87% on 2025-12-31 |
| 27 | SIDU Sidus Space, Inc. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +41.98% |
against the close of 12/09/2025
Session detail |
Other Announcement |
Sidus Space Announces Successful Bus-Level Commissioning of Hybrid 3D Printed, AI Enhanced LizzieSat-3
08:30 ET premarket |
68.8% of the move was gone five sessions later. Month end +294.52% on 2025-12-31 |
| 28 | DJT Trump Media & Technology Group Corp. | +41.93% |
against the close of 12/17/2025
Session detail |
M&A / Acquisition |
Trump Media & Technology Group to Merge with TAE Technologies, a Premier Fusion Power Company, in All-Stock Transaction Valued at More Than $6 Billion
06:30 ET premarket |
24.8% of the move was gone five sessions later. Month end +26.46% on 2025-12-31 |
| 29 | KYMR Kymera Therapeutics, Inc. | +41.55% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Kymera Therapeutics Announces Positive Results from BroADen Phase 1b Clinical Trial of KT-621, a First-in-Class, Oral STAT6 Degrader, in Patients with Moderate to Severe Atopic Dermatitis
07:00 ET premarket |
31.1% of the move was gone five sessions later. Month end +16.80% on 2025-12-31 |
| 30 | EUDA EUDA Health Holdings Limited Also on the opposite board this month on both boards | +41.18% |
against the close of 12/22/2025
Session detail |
Other Announcement |
EUDA Accelerates Longevity Strategy with Launch of Comprehensive Stem Cell Therapy Platform and First Clinic in Shenzhen
07:00 ET premarket |
Five sessions later the move was 69.6% bigger, at +69.85%. Month end +69.85% on 2025-12-31 |
| 31 | TORO Toro Corp. | +40.44% |
against the close of 12/04/2025
Session detail |
Buyback / Dividend |
Toro Corp. Declares Special Dividend of $1.75 Per Share
09:05 ET premarket |
43.7% of the move was gone five sessions later. Month end +27.85% on 2025-12-31 |
| 32 | EEX Emerald Holding, Inc. | +39.83% |
against the close of 12/15/2025
Session detail |
M&A / Acquisition |
Emerald Holding, Inc. Acknowledges Receipt of Inquiries into a Potential Acquisition of the Company; Board Commences Evaluation of Potential Strategic Options
09:00 ET premarket |
20.6% of the move was gone five sessions later. Month end +26.27% on 2025-12-31 |
| 33 | CYPH Cypherpunk Technologies Inc. More than one ranked move this month 2+ ranked moves | +39.66% |
against the close of 12/08/2025
Session detail |
Other Announcement |
Cypherpunk Taps Zcash Founder Zooko as Strategic Advisor
07:00 ET premarket |
88.0% of the move was gone five sessions later. Month end 0.00% on 2025-12-31 |
| 34 | CYPH Cypherpunk Technologies Inc. More than one ranked move this month 2+ ranked moves | +39.02% |
against the close of 12/18/2025
Session detail |
Other Announcement |
Josh Swihart, ECC CEO, Joins Cypherpunk as Strategic Advisor
07:00 ET premarket |
32.9% of the move was gone five sessions later. Month end +24.05% on 2025-12-31 |
| 35 | DVAX Dynavax Technologies Corporation | +38.19% |
against the close of 12/23/2025
Session detail |
M&A / Acquisition |
Sanofi to Acquire Dynavax, Adding a Marketed Adult Hepatitis B Vaccine and Phase 1/2 Shingles Candidate to the Pipeline
01:23 ET premarket |
0.0% of the move was gone five sessions later. Month end +38.19% on 2025-12-31 This month ended before the fifth session after the move. |
| 36 | ALEX Alexander & Baldwin, Inc. | +37.71% |
against the close of 12/08/2025
Session detail |
M&A / Acquisition |
Alexander & Baldwin to be Taken Private in $2.3 Billion Transaction
17:30 ET after hours |
Five sessions later the move was 2.3% bigger, at +38.57%. Month end +36.33% on 2025-12-31 |
| 37 | ONTF ON24, Inc. | +37.54% |
against the close of 12/29/2025
Session detail |
M&A / Acquisition |
ON24 Enters Into Definitive Agreement to Be Acquired by Cvent
08:00 ET premarket |
4.5% of the move was gone five sessions later. Month end +35.84% on 2025-12-31 This month ended before the fifth session after the move. |
| 38 | TERN Terns Pharmaceuticals, Inc. | +37.02% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Terns Highlights Additional Positive Phase 1 Clinical Data Supporting TERN-701’s Best-in-Disease Potential in Relapsed/Refractory CML at the 67th ASH Annual Meeting
14:45 ET intraday |
Five sessions later the move was 34.8% bigger, at +49.90%. Month end +37.60% on 2025-12-31 |
| 39 | PETS PetMed Express, Inc. More than one ranked move this month 2+ ranked moves | +35.89% |
against the close of 12/15/2025
Session detail |
M&A / Acquisition |
Cardone Ventures Announces Unsolicited $4.25 Per Share All-Cash Proposal to Acquire PetMed Express
12:04 ET intraday |
46.6% of the move was gone five sessions later. Month end +11.50% on 2025-12-31 |
| 40 | PL Planet Labs PBC | +35.01% |
against the close of 12/10/2025
Session detail |
Earnings |
Planet Reports Financial Results for Third Quarter of Fiscal Year 2026
16:05 ET after hours |
Five sessions later the move was 0.4% bigger, at +35.16%. Month end +52.40% on 2025-12-31 |
| 41 | QIPT Quipt Home Medical Corp. | +34.10% |
against the close of 12/12/2025
Session detail |
M&A / Acquisition |
Quipt Home Medical Enters Into Definitive Agreement for Its Acquisition by Affiliates of Kingswood Capital Management and Forager Capital Management
07:30 ET premarket |
Five sessions later the move was 3.4% bigger, at +35.25%. Month end +35.25% on 2025-12-31 |
| 42 | SIDU Sidus Space, Inc. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +33.33% |
against the close of 12/23/2025
Session detail |
Offering / Dilution Rose on dilution |
Sidus Space Announces Closing of Public Offering
13:18 ET intraday |
Five sessions later the move was 387.3% bigger, at +162.42%. Month end +90.30% on 2025-12-31 This month ended before the fifth session after the move. |
| 43 | ALDX Aldeyra Therapeutics, Inc. | +33.08% |
against the close of 12/15/2025
Session detail |
Clinical Trial Results |
Aldeyra Therapeutics Announces PDUFA Extension of the New Drug Application of Reproxalap for the Treatment of Dry Eye Disease
19:30 ET after hours |
19.7% of the move was gone five sessions later. Month end +29.82% on 2025-12-31 |
| 44 | GEMI Gemini Space Station, Inc. | +31.95% |
against the close of 12/10/2025
Session detail |
Other Announcement |
Gemini Receives US License for Prediction Markets
16:35 ET after hours |
It gave back the whole move and closed 4.93% below the pre-news price. Month end -12.68% on 2025-12-31 |
| 45 | ISSC Innovative Solutions & Support | +30.76% |
against the close of 12/17/2025
Session detail |
Other Announcement |
Innovative Solutions & Support dba Innovative Aerosystems Reports Fiscal 2025 Fourth Quarter and Year Ended 2025 Results
09:00 ET premarket |
Five sessions later the move was 148.8% bigger, at +76.52%. Month end +72.34% on 2025-12-31 |
| 46 | PRAX Praxis Precision Medicines, Inc. | +30.54% |
against the close of 12/04/2025
Session detail |
Earnings |
Praxis Precision Medicines Announces Positive Results from EMBOLD Study for Relutrigine in SCN2A and SCN8A Developmental and Epileptic Encephalopathies
16:10 ET after hours |
Five sessions later the move was 35.9% bigger, at +41.50%. Month end +55.15% on 2025-12-31 |
| 47 | ADEA Adeia Inc. | +30.54% |
against the close of 12/19/2025
Session detail |
Guidance Change |
Adeia Raises 2025 Financial Outlook
08:06 ET premarket |
Five sessions later the move was 24.1% bigger, at +37.90%. Month end +35.08% on 2025-12-31 |
| 48 | FOLD Amicus Therapeutics, Inc | +30.21% |
against the close of 12/18/2025
Session detail |
M&A / Acquisition |
BioMarin to Acquire Amicus Therapeutics for $4.8 Billion, Expanding Position as a Leader in Rare Diseases, Accelerating Revenue Growth and Strengthening Financial Outlook
07:45 ET premarket |
Five sessions later the move was 2.1% bigger, at +30.85%. Month end +30.76% on 2025-12-31 |
| 49 | CFLT Confluent, Inc. | +29.08% |
against the close of 12/05/2025
Session detail |
M&A / Acquisition |
IBM to Acquire Confluent to Create Smart Data Platform for Enterprise Generative AI
08:00 ET premarket |
Five sessions later the move was 3.0% bigger, at +29.95%. Month end +30.68% on 2025-12-31 |
| 50 | ELVA Electrovaya Inc. | +29.00% |
against the close of 12/10/2025
Session detail |
Earnings |
Electrovaya Reports Fiscal Year 2025 Results
16:00 ET after hours |
12.8% of the move was gone five sessions later. Month end +46.84% on 2025-12-31 |
| 51 | FEIM Frequency Electronics, Inc. | +28.81% |
against the close of 12/11/2025
Session detail |
Earnings |
Frequency Electronics, Inc. Announces Second Quarter and Fiscal Year 2026 Financial Results
16:03 ET after hours |
Five sessions later the move was 16.1% bigger, at +33.44%. Month end +49.31% on 2025-12-31 |
| 52 | MAMA Mama's Creations, Inc. | +28.09% |
against the close of 12/08/2025
Session detail |
Earnings |
Mama’s Creations Reports Third Quarter Fiscal 2026 Financial Results
16:05 ET after hours |
17.5% of the move was gone five sessions later. Month end +20.66% on 2025-12-31 |
| 53 | OCUL Ocular Therapeutix, Inc. | +28.06% |
against the close of 12/05/2025
Session detail |
Clinical Trial Results |
Ocular Therapeutix™ Announces Plans to Accelerate NDA Submission Timeline for AXPAXLI™ in Wet AMD
07:00 ET premarket |
55.0% of the move was gone five sessions later. Month end -3.50% on 2025-12-31 |
| 54 | RZLV Rezolve AI PLC | +28.02% |
against the close of 12/15/2025
Session detail |
Other Announcement |
Rezolve Ai Shatters Year-End Expectations: December Revenue Expected to Exceed $17 Million, ARR Expected to Exceed $200 Million
08:00 ET premarket |
26.2% of the move was gone five sessions later. Month end +10.78% on 2025-12-31 |
| 55 | GANX Gain Therapeutics, Inc. Also on the opposite board this month on both boards | +27.78% |
against the close of 12/18/2025
Session detail |
Other Announcement |
Gain Therapeutics to Host Virtual KOL Event on GT-02287 for Parkinson’s Disease
16:05 ET after hours |
Five sessions later the move was 45.6% bigger, at +40.44%. Month end +43.11% on 2025-12-31 |
| 56 | XBP XBP Global Holdings, Inc. | +27.18% |
against the close of 12/10/2025
Session detail |
Contract / Partnership |
XBP Global Secures Multi-Million Euro Agreement with BG-Phoenics GmbH, a Leading IT Service Provider for Statutory Insurance in Germany’s Public Sector
08:08 ET premarket |
Five sessions later the move was 37.3% bigger, at +37.33%. Month end +64.65% on 2025-12-31 |
| 57 | FONR Fonar Corporation | +26.88% |
against the close of 12/29/2025
Session detail |
M&A / Acquisition |
FONAR Signs Definitive Agreement for "Take Private" Sale to Acquisition Group Led by CEO
16:30 ET after hours |
1.5% of the move was gone five sessions later. Month end +26.60% on 2025-12-31 This month ended before the fifth session after the move. |
| 58 | AEVA Aeva Technologies, Inc. | +25.71% |
against the close of 12/02/2025
Session detail |
Contract / Partnership |
Aeva Wins Exclusive Global Production Contract from Top European Passenger OEM
07:00 ET premarket |
Five sessions later the move was 62.5% bigger, at +41.78%. Month end +21.95% on 2025-12-31 |
| 59 | TROX TRONOX LIMITED CL A | +25.60% |
against the close of 12/08/2025
Session detail |
Other Announcement |
Export-Import Bank of the United States and Export Finance Australia Provide Conditional and Non-Binding Support for Potential Financing of up to US$600 Million to Advance Tronox's Rare Earth Strategy
06:45 ET premarket |
31.3% of the move was gone five sessions later. Month end +11.20% on 2025-12-31 |
| 60 | EWTX Edgewise Therapeutics, Inc. | +25.50% |
against the close of 12/23/2025
Session detail |
Clinical Trial Results |
Edgewise Therapeutics Announces Completion of the EDG-7500 CIRRUS-HCM Phase 2 Parts B and C and Favorable Interim Safety Results from the Ongoing Part D Study in Hypertrophic Cardiomyopathy
08:00 ET premarket |
63.8% of the move was gone five sessions later. Month end +14.12% on 2025-12-31 This month ended before the fifth session after the move. |
| 61 | VNDA Vanda Pharmaceuticals Inc. | +25.46% |
against the close of 12/30/2025
Session detail |
FDA & Regulatory |
Vanda Pharmaceuticals Announces FDA Approval of NEREUS™ (tradipitant) for the Prevention of Vomiting Induced by Motion: A Historic Scientific Milestone in the Prevention of Motion Sickness
18:13 ET after hours |
82.7% of the move was gone five sessions later. Month end +25.46% on 2025-12-31 same session This month ended before the fifth session after the move. |
| 62 | DBVT DBV Technologies S.A. | +25.42% |
against the close of 12/16/2025
Session detail |
Clinical Trial Results |
DBV Technologies Announces Positive Topline Results from Phase 3 VITESSE Trial of VIASKIN® Peanut Patch in Peanut Allergic Children Aged 4-7 Years
16:05 ET after hours |
77.0% of the move was gone five sessions later. Month end +6.62% on 2025-12-31 |
| 63 | EVTV Azio AI Holdings, Inc. Also on the opposite board this month on both boards | +24.98% |
against the close of 12/19/2025
Session detail |
Other Announcement |
AZIO AI Provides Additional Context on Strategic Discussions with Envirotech Vehicles and Emphasizes Disciplined, Shareholder-Aligned Transaction Framework
15:37 ET intraday |
It gave back the whole move and closed 8.75% below the pre-news price. Month end -13.68% on 2025-12-31 |
| 64 | USAR USA Rare Earth, Inc. | +24.68% |
against the close of 12/03/2025
Session detail |
Contract / Partnership |
USA Rare Earth Subsidiary LCM Partners with Arnold Magnetic Technologies to Secure Rare Earth Metals Supply
07:01 ET premarket |
Five sessions later the move was 37.3% bigger, at +33.88%. Month end -15.12% on 2025-12-31 |
| 65 | PATH UiPath, Inc. | +24.36% |
against the close of 12/03/2025
Session detail |
Earnings |
UiPath Reports Third Quarter Fiscal 2026 Financial Results
16:10 ET after hours |
12.4% of the move was gone five sessions later. Month end +10.30% on 2025-12-31 |
| 66 | SRXH SRX Global Inc Also on the opposite board this month on both boards | +23.78% |
against the close of 12/15/2025
Session detail |
M&A / Acquisition |
SRx Health Enters into Definitive Agreement to Acquire EMJX to Establish Next-Generation Digital Asset Treasury Operating System and Platform Led by Eric M. Jackson
08:30 ET premarket |
It gave back the whole move and closed 27.78% below the pre-news price. Month end -25.06% on 2025-12-31 |
| 67 | KYTX Kyverna Therapeutics, Inc. Also on the opposite board this month on both boards | +23.23% |
against the close of 12/12/2025
session reconstructed
Session detail |
Clinical Trial Results |
Kyverna Therapeutics to Report Topline Results from Registrational Phase 2 KYSA-8 Trial of KYV-101 in Stiff Person Syndrome
14:30 ET intraday |
It gave back the whole move and closed 7.40% below the pre-news price. Month end +7.06% on 2025-12-31 |
| 68 | SWBI Smith & Wesson Brands, Inc. | +23.01% |
against the close of 12/04/2025
Session detail |
Earnings |
Smith & Wesson Brands, Inc. Reports Second Quarter Fiscal 2026 Financial Results
16:05 ET after hours |
6.3% of the move was gone five sessions later. Month end +10.77% on 2025-12-31 |
| 69 | AXSM Axsome Therapeutics, Inc | +22.75% |
against the close of 12/30/2025
Session detail |
Clinical Trial Results |
Axsome Therapeutics Announces FDA Pre-NDA Meeting Minutes for AXS-12 in Narcolepsy Supporting NDA Submission
06:55 ET premarket |
44.6% of the move was gone five sessions later. Month end +22.75% on 2025-12-31 same session This month ended before the fifth session after the move. |
| 70 | CRWV CoreWeave, Inc. | +22.64% |
against the close of 12/18/2025
Session detail |
Other Announcement |
CoreWeave Joins Department of Energy’s Genesis Mission to Advance U.S. Research and Innovation
17:32 ET after hours |
52.7% of the move was gone five sessions later. Month end +5.81% on 2025-12-31 |
| 71 | RBRK Rubrik, Inc. | +22.49% |
against the close of 12/04/2025
Session detail |
Earnings |
Rubrik Reports Third Quarter Fiscal Year 2026 Financial Results
16:05 ET after hours |
29.9% of the move was gone five sessions later. Month end +8.59% on 2025-12-31 |
| 72 | CEP Cantor Equity Partners, Inc. | +22.47% |
against the close of 12/03/2025
Session detail |
Reverse Merger / Shell |
Twenty One Capital and Cantor Equity Partners Announce Expected Closing of Business Combination and NYSE Listing
16:30 ET after hours |
Month-end is not shown: no closing price is available for 2025-12-31. |
| 73 | CHPT ChargePoint Holdings, Inc. | +22.42% |
against the close of 12/04/2025
Session detail |
Earnings |
ChargePoint Reports Third Quarter Fiscal Year 2026 Financial Results
16:05 ET after hours |
92.7% of the move was gone five sessions later. Month end -22.07% on 2025-12-31 |
| 74 | MDB MongoDB, Inc. | +22.23% |
against the close of 12/01/2025
Session detail |
Earnings |
MongoDB, Inc. Announces Third Quarter Fiscal 2026 Financial Results
16:05 ET after hours |
Five sessions later the move was 16.5% bigger, at +25.90%. Month end +27.62% on 2025-12-31 |
| 75 | SKIL Skillsoft Corp. Also on the opposite board this month on both boards | +22.22% |
against the close of 12/17/2025
Session detail |
Contract / Partnership |
Skillsoft and edX Form Strategic Partnership to Expand University-Led Learning in The Skillsoft Platform
08:30 ET premarket |
96.2% of the move was gone five sessions later. Month end +30.80% on 2025-12-31 |
| 76 | STI Solidion Technology, Inc. | +22.11% |
against the close of 12/26/2025
Session detail |
Contract / Partnership |
Solidion Technology Awarded A Second Grant From The U.S. Department of Energy For Nuclear Reactors
06:00 ET premarket |
Five sessions later the move was 84.9% bigger, at +40.89%. Month end +12.36% on 2025-12-31 This month ended before the fifth session after the move. |
| 77 | SPAI Safe Pro Group Inc. | +22.06% |
against the close of 12/18/2025
Session detail |
Other Announcement |
Safe-Pro USA Appoints 20+ Year Defense and Protective Equipment Industry Leader as VP of Marketing and Sales as it Expands its Ballistics Business
08:01 ET premarket |
Five sessions later the move was 2.7% bigger, at +22.65%. Month end +22.35% on 2025-12-31 |
| 78 | FCEL FuelCell Energy Inc NEW (DE) | +22.03% |
against the close of 12/17/2025
Session detail |
Other Announcement |
FuelCell Energy Ends FY2025 with Revenue Growth and a Focus on Data Center Opportunities
07:30 ET premarket |
66.7% of the move was gone five sessions later. Month end -7.47% on 2025-12-31 |
| 79 | TUSK Mammoth Energy Services, Inc. | +21.81% |
against the close of 12/02/2025
Session detail |
M&A / Acquisition |
Mammoth Energy Services, Inc. Announces Sale of Engineering Business
16:30 ET after hours |
54.5% of the move was gone five sessions later. Month end +4.82% on 2025-12-31 |
| 80 | PHVS Pharvaris N.V. | +21.75% |
against the close of 12/02/2025
Session detail |
Clinical Trial Results |
Pharvaris Announces Positive Topline Data from RAPIDe-3 Pivotal Study Confirming Potential of Deucrictibant for On-Demand Treatment of HAE Attacks
06:50 ET premarket |
It gave back the whole move and closed 1.82% below the pre-news price. Month end +15.05% on 2025-12-31 |
| 81 | MB MasterBeef Group | +21.50% |
against the close of 12/15/2025
session reconstructed
Session detail |
Earnings |
MasterBeef Group Announces Annual General Meeting Results
08:30 ET premarket |
Five sessions later the move was 7.6% bigger, at +23.13%. Month-end is not shown: no closing price is available for 2025-12-31. This month ended before the fifth session after the move. |
| 82 | AZI Autozi Internet Technology (Global) Ltd. More than one ranked move this month Also on the opposite board this month 2+ ranked moves on both boards | +21.43% |
against the close of 12/15/2025
Session detail |
Other Announcement |
AZI Announces Signing of Approximately $980 Million Memorandum of Intent for Sales with Multiple Potential Buyers
07:15 ET premarket |
Five sessions later the move was 418.2% bigger, at +111.04%. Month end +103.25% on 2025-12-31 |
| 83 | RYET Ruanyun Edai Technology Inc. | +20.95% |
against the close of 12/17/2025
Session detail |
Other Announcement |
Ruanyun Edai Technology Inc. Establishes $100 Million Equity Purchase Facility with ARC Group International to Enhance Financial Flexibility
09:10 ET premarket |
27.3% of the move was gone five sessions later. Month end +2.86% on 2025-12-31 |
| 84 | DGNX Diginex Limited | +20.81% |
against the close of 12/08/2025
Session detail |
Other Announcement |
Diginex Limited Announces Robust 293% Revenue Growth and Enhanced Balance Sheet for Six Months Ended September 30, 2025
08:00 ET premarket |
It gave back the whole move and closed 16.77% below the pre-news price. Month end -47.41% on 2025-12-31 |
| 85 | RNAZ TransCode Therapeutics, Inc. | +20.74% |
against the close of 12/10/2025
Session detail |
Clinical Trial Results |
TransCode Therapeutics and Quantum Leap Healthcare Collaborative Launch a Phase 2a dose-expansion trial with TTX-MC138, following positive readouts from TransCode's Phase 1 trial
08:05 ET premarket |
It gave back the whole move and closed 9.04% below the pre-news price. Month end -20.86% on 2025-12-31 |
| 86 | LEE Lee Enterprises, Inc. | +20.64% |
against the close of 12/29/2025
Session detail |
Contract / Partnership |
Lee Enterprises Announces Strategic Investment and Board-Led Transition
08:45 ET premarket |
Five sessions later the move was 75.3% bigger, at +36.19%. Month end +28.42% on 2025-12-31 This month ended before the fifth session after the move. |
| 87 | FBYD Falcon's Beyond Global, Inc. | +20.44% |
against the close of 12/01/2025
Session detail |
Index Inclusion |
Falcon’s Beyond to Join Russell 2000® Index
10:31 ET intraday |
59.5% of the move was gone five sessions later. Month end -13.09% on 2025-12-31 |
| 88 | QBTS D-Wave Quantum Inc. | +20.02% |
against the close of 12/19/2025
Session detail |
Other Announcement |
D-Wave to Bring Commercial Quantum Computing to CES 2026, Showcasing its Award-Winning Technology and Real-World Customer Success Stories
07:00 ET premarket |
It gave back the whole move and closed 2.13% below the pre-news price. Month end -2.50% on 2025-12-31 |
| 89 | FGEN | +19.81% |
against the close of 12/12/2025
Session detail |
Clinical Trial Results |
Roxadustat Granted Orphan Drug Designation for the Treatment of Myelodysplastic Syndromes by the U.S. Food and Drug Administration
07:00 ET premarket |
89.1% of the move was gone five sessions later. Month end +4.77% on 2025-12-31 |
| 90 | GLSI Greenwich LifeSciences, Inc. | +19.80% |
against the close of 12/26/2025
Session detail |
Other Announcement |
Greenwich LifeSciences Extends Lock-up of Directors and Officers to September 30, 2026
06:00 ET premarket |
It gave back the whole move and closed 0.75% below the pre-news price. Month end +1.57% on 2025-12-31 This month ended before the fifth session after the move. |
| 91 | CTOR Citius Oncology, Inc. | +19.71% |
against the close of 11/28/2025
Session detail |
Other Announcement |
Citius Oncology Announces U.S. Commercial Launch of LYMPHIR™, a Novel Cancer Immunotherapy for Cutaneous T-Cell Lymphoma (CTCL)
12:00 ET intraday |
It gave back the whole move and closed 20.44% below the pre-news price. Month end -27.01% on 2025-12-31 |
| 92 | SCWO 374Water Inc. Also on the opposite board this month on both boards | +19.66% |
against the close of 12/29/2025
Session detail |
Contract / Partnership |
374Water Awarded Waste Destruction Services Funding from the State of Minnesota for PFAS Destruction in Biosolids
08:31 ET premarket |
Five sessions later the move was 101.4% bigger, at +39.60%. Month end +16.24% on 2025-12-31 This month ended before the fifth session after the move. |
| 93 | EVAX Evaxion A/S Also on the opposite board this month on both boards | +19.62% |
against the close of 12/05/2025
session reconstructed
Session detail |
Other Announcement |
Evaxion presents new data for EVX-04, a cancer vaccine candidate for acute myeloid leukemia at ASH Annual Meeting
14:00 ET intraday |
48.5% of the move was gone five sessions later. Month end -9.14% on 2025-12-31 |
| 94 | WKEY WISeKey International Holding AG | +19.47% |
against the close of 12/19/2025
Session detail |
Other Announcement |
WISeKey Issues Year-End CEO Letter to Shareholders
01:00 ET premarket |
77.0% of the move was gone five sessions later. Month end +3.29% on 2025-12-31 |
| 95 | PCT PureCycle Technologies, Inc. | +19.46% |
against the close of 12/17/2025
Session detail |
Leadership Change |
Valerie Mars Appointed to PureCycle’s Board of Directors
08:00 ET premarket |
Five sessions later the move was 7.6% bigger, at +20.94%. Month end +15.30% on 2025-12-31 |
| 96 | STRO Sutro Biopharma, Inc. | +19.21% |
against the close of 12/02/2025
Session detail |
Clinical Trial Results |
Sutro Biopharma Announces First Cohort of Patients Dosed in Phase 1 Trial of STRO-004, a Next-Generation Tissue Factor ADC, in TF-Expressing Solid Tumors
08:00 ET premarket |
Five sessions later the move was 21.4% bigger, at +23.32%. Month end +58.54% on 2025-12-31 |
| 97 | NUTX Nutex Health Inc. | +19.01% |
against the close of 12/03/2025
Session detail |
Buyback / Dividend |
NUTEX HEALTH EXTENDS SHARE REPURCHASE PLAN
05:30 ET premarket |
Five sessions later the move was 134.5% bigger, at +44.58%. Month end +24.95% on 2025-12-31 |
| 98 | MAIA MAIA Biotechnology, Inc. | +18.84% |
against the close of 12/10/2025
Session detail |
Clinical Trial Results catalyst from a later release the same session |
MAIA Leadership Continues Insider Buying in 2025 and Trial Data Signals Breakout Potential
08:00 ET premarket |
It gave back the whole move and closed 13.04% below the pre-news price. Month end +10.87% on 2025-12-31 |
| 99 | NRIX Nurix Therapeutics, Inc. | +18.68% |
against the close of 12/05/2025
session reconstructed
Session detail |
Clinical Trial Results |
Nurix Therapeutics Presents New Data Demonstrating Durable, Deepening Responses in Phase 1 Trial of Bexobrutideg (NX-5948) in Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia (CLL) at the 67th American Society of Hematology (ASH) Annual Meeting & Exposition
09:30 ET intraday |
72.8% of the move was gone five sessions later. Month end +4.86% on 2025-12-31 |
| 100 | AGIO Agios Pharmaceuticals, Inc. | +18.63% |
against the close of 12/23/2025
Session detail |
FDA & Regulatory |
U.S. FDA Approves Agios’ AQVESME™ (mitapivat) for the Treatment of Anemia in Adults with Alpha- or Beta-Thalassemia
19:45 ET after hours |
43.5% of the move was gone five sessions later. Month end +10.70% on 2025-12-31 This month ended before the fifth session after the move. |
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. 649 smaller events this month are held out of this month's eligible pool; switch to include them. 233 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
On 4 of these rows the measured session was reconstructed from the announcement time, because it predates our stored session records.
1 event was left out of this board because the vendor names the ticker as a preferred, a note, a depositary share or a fund rather than a company's common stock.
2 events were left out of this board because the ticker had not traded for more than 10 days before the measured session, so no comparable prior close exists.
2 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.
Whole board, unfiltered
In December 2025, the median gainer had given back 12.8% of its move five sessions later; the largest catalyst group was Other Announcement, 29 of the 100 events, at a median of +28.0%.
Close-to-close change on the measured trading session, against the previous close.
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.
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 |
|---|---|---|---|---|---|
| Other Announcement | 29 | 29.0% | +28.0% | +20.7% | 79.3% of 29 |
| Clinical Trial Results | 19 | 19.0% | +25.5% | +12.6% | 78.9% of 19 |
| M&A / Acquisition | 17 | 17.0% | +37.7% | +35.3% | 94.1% of 17 |
| Earnings | 15 | 15.0% | +28.8% | +25.3% | 100.0% of 15 |
| Contract / Partnership | 9 | 9.0% | Fewer than 10 events in this group, so no figures are shown. | ||
7 other catalyst types, 11 events: FDA & Regulatory, Offering / Dilution, Buyback / Dividend, Reverse Merger / Shell, Guidance Change, Leadership Change, Index Inclusion.
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 | 98.0% of 100 | 7.9% given back, of 100 |
| Day +5 | 88.9% of 99 | 12.8% given back, of 99 |
| Month end | 84.2% of 95 | 26.5% given back, of 95 |
| Month end falls before day +5 for 12 of these 95 events, so this row is not a later horizon than the one above it. 95 of the 100 events have a month-end close later than the measured session; 3 have it on the measured session itself, and 2 have 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 December 2025
Two or more ranked moves this month, each on a different trading day.
| Symbol | Measured sessions | Best move |
|---|---|---|
| SIDUSidus Space, Inc. | 3Contract / Partnership, Other Announcement, Offering / Dilution | +97.41% |
| PLRZPolyrizon Ltd. | 2Other Announcement | +131.96% |
| PETSPetMed Express, Inc. | 2M&A / Acquisition | +68.36% |
| AZIAutozi Internet Technology (Global) Ltd. | 2Other Announcement | +64.47% |
| CYPHCypherpunk Technologies Inc. | 2Other Announcement | +39.66% |
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 |
|---|---|---|
| DVLTDatavault AI Inc. | 2025-11, 2025-10, 2025-09 | +55.23% |
| LPTXLeap Therapeutics, Inc. | 2025-11, 2025-10 | +368.57% |
| TGEThe Generation Essentials Group | 2025-11, 2025-10 | +132.74% |
| PACSPACS Group, Inc. | 2025-11, 2025-09 | +55.32% |
| BWBabcock & Wilcox Enterprises, Inc. | 2025-11, 2025-09 | +30.85% |
| ONDSOndas Inc. | 2025-11, 2025-10 | +25.99% |
| BTQBTQ Technologies Corp. | 2025-11, 2025-10 | +31.12% |
| SOGPSound Group Inc. | 2025-10, 2025-09 | +44.59% |
| VHCVirnetX Holding Corp | 2025-10, 2025-09 | +40.41% |
| ABATAmerican Battery Technology Company | 2025-10, 2025-09 | +36.59% |
What the board was made of
Price before the move
When the announcement landed
Volume against normal
1 event has too little trading history for a relative volume, and is not in the tiers above.
Industry
35 other industries, 41 events
Industry not known: 15.0%
Against November 2025
100 events in the comparable window.
November 2025 median +32.6%, selected from the 7,580 events in that month's eligible pool
December 2025 median +28.9%, 3.7 points below November 2025. December 2025's median is taken over the 100 ranked rows, selected from the 4,656 events in that month's eligible pool.
The two windows drew on pools of very different size, so part of the gap between the medians is how deep into each pool the top hundred reaches rather than how severe the moves were.
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.
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.
On 4 of these rows the measured session was reconstructed from the announcement time, because it predates our stored session records.
This archive starts at 2020-04, the first month with ranked moves.