Biggest Stock Gainers Today in the U.S. Market (December 11, 2025): Takeovers, AI Winners and Micro‑Cap Rockets

Biggest Stock Gainers Today in the U.S. Market (December 11, 2025): Takeovers, AI Winners and Micro‑Cap Rockets

The U.S. stock market was split in two on Thursday, December 11, 2025: mega‑cap tech sagged after Oracle’s ugly post‑earnings sell‑off, while the Dow notched a fresh record and a long tail of small and mid‑cap names exploded higher.

By late morning on Wall Street, the S&P 500 was down about 0.2%, the Nasdaq 100 off just over 1%, while the Dow Jones Industrial Average climbed roughly 1.2% to an intraday all‑time high, and small caps (Russell 2000) were up nearly 1%. [1]

At the individual‑stock level, however, it was anything but calm. Thursday’s biggest U.S. gainers were dominated by tiny biotechs, speculative digital‑asset plays and one very controversial pet‑pharmacy takeover target.

Below is a breakdown of the top 20 U.S. stock gainers today, 11 December 2025, why they’re moving, and what the latest news and forecasts say.


How we defined “biggest gainers” for December 11, 2025

To keep this grounded and consistent:

  • Universe: U.S.-listed stocks and ETFs.
  • Ranking: By percentage gain during today’s regular session (intraday), using StockAnalysis.com’s “Gainers Today” screener, updated for Dec. 11, 2025. [2]
  • Cut‑off: We highlight the top 20 names by percentage move, then add context on notable large‑cap winners in the S&P 500 and Dow.

Prices and percentage moves are intraday snapshots, not official closing prices, and can still change by the closing bell.


Top 10 U.S. stock gainers today – and what’s driving them

1. Agape ATP Corporation (ATPC) – +101.3%

  • Sector: Wellness / supplements (OTC‑style micro‑cap)
  • Price / size: About $0.14 per share$6.9 million market cap as of midday. [3]

Agape ATP more than doubled today despite no widely reported fresh news or major analyst coverage on December 11 from mainstream financial wires. That usually points to:

  • Thin liquidity (sub‑$10M market cap)
  • A surge in speculative trading and possible social‑media chatter
  • Short‑term technical factors (for example, shorts covering after recent weakness)

For traders, ATPC is a classic “lottery ticket” mover: explosive upside days can be followed by equally violent reversals, and long‑term fundamentals are largely absent from today’s price action.


2. Black Titan Corporation (BTTC) – +84.9%

  • Sector: Digital assets / fintech
  • Price / size: Around $6.13$45M market cap. [4]

Black Titan’s token‑adjacent story caught fire after the company rolled out a series of updates on its DAT+ (Digital Asset Token) framework. New “pillars” unveiled today describe how DAT+ is meant to align token utility with earnings, risk management and collaborative “ecosystem” engagement for digital‑asset investors. [5]

What the news says today

  • Multiple same‑day press items walk through new utility, collaboration and risk‑management pillars for DAT+, positioning BTTC as a sort of infrastructure and governance layer for tokenized assets. [6]

Takeaway: The stock is behaving like a high‑beta proxy on the broader crypto and tokenization theme. Without earnings or detailed financials to back the move, BTTC is squarely in speculative territory, and any disappointment in execution around DAT+ could unwind the rally quickly.


3. PetMed Express (PETS) – +84.8%

  • Sector: Online pet pharmacy / e‑commerce
  • Price / size: ~$3.27$69M market cap. [7]

PETS is today’s most dramatic event‑driven story. Shares spiked after SilverCape Partners submitted an unsolicited, non‑binding takeover proposal at $4.00 per share in cash, representing a hefty premium to Wednesday’s close. [8]

Today’s key developments

  • Coverage from market‑moving sites notes that investors are suddenly pricing in some probability of a sale, but not the full $4.00, suggesting skepticism around deal certainty or timing. [9]
  • Commentary points out that PetMed has struggled with competition and margin pressure for years; for some investors, a clean cash exit looks more attractive than a long operational turnaround. [10]

Forward‑looking analysis:
If the board rejects or the buyer walks, PETS could retrace sharply. On the other hand, a sweetened bid or competing offer could push the share price closer to (or even above) the proposed $4.00.


4. AXIL Brands (AXIL) – +67.7%

  • Sector: Consumer audio / hearing protection
  • Price / size: ~$8.42$57M market cap. [11]

AXIL surged after the company announced a national retail distribution agreement with Walmart for its X30 LThearing protection and audio product. The rollout will place AXIL’s flagship device in roughly 3,700 U.S. Walmart stores, massively expanding its brick‑and‑mortar retail footprint. [12]

The company is pitching the deal as a growth inflection that will:

  • Broaden consumer awareness and trial for the X30 LT
  • Support higher volumes heading into 2026
  • Potentially improve margins through scale and brand recognition [13]

For now, AXIL is trading like a classic small‑cap retail winner: a single big box partnership can briefly transform growth expectations, but investors will watch 2026 sell‑through data closely to see whether the story sticks.


5. HeartBeam (BEAT) – +50.3%

  • Sector: Med‑tech / cardiac diagnostics
  • Price / size: ~$2.33$80M market cap. [14]

HeartBeam’s rally is grounded in a major regulatory win. The company secured FDA 510(k) clearance for what it calls the first cable‑free, credit‑card–sized device that can synthesize a full 12‑lead ECG at home. [15]

A Zacks analysis published this morning underscores why investors care:

  • The clearance follows a successful appeal of an earlier rejection, boosting confidence in HeartBeam’s underlying tech and data. [16]
  • Management is planning a limited U.S. launch in early 2026, targeting concierge and preventive cardiology practices before scaling more broadly. [17]
  • Zacks still rates BEAT just a “Hold” (Rank #3), noting that the company is early‑stage and execution risk remains high despite a large addressable market. [18]

Big picture: BEAT is being repriced more as an “options‑like” play on home cardiac diagnostics and AI‑assisted ECG analysis than on current revenue, which is still minimal.


6. SMX (Security Matters) Public Ltd (SMX) – +46.7%

  • Sector: Traceability / blockchain‑style tracking of materials
  • Price / size: ~$214.55$38M market cap. [19]

SMX extended a wild multi‑week run after the company revealed a new initiative to turn recycled cotton into a traceable “digital asset”, complete with its own Plastic Cycle Token (PCT)‑style model adapted for textiles. [20]

The December 11 announcement frames cotton as a provably tracked commodity whose history and sustainability credentials can be stored on SMX’s platform and monetized via tokenization. [21]

SMX is now trading more like a narrative‑driven Web3 materials story than a conventional industrial firm. That makes the upside enormous if adoption grows—but also leaves the stock acutely vulnerable if enthusiasm for “tokenized commodities” cools.


7. Diamond Hill Investment Group (DHIL) – +44.7%

  • Sector: Asset management
  • Price / size: ~$170.02$460M market cap. [22]

Diamond Hill’s move is classic M&A repricing. Before the open, First Eagle Investments agreed to acquire DHIL for $175 per share in cash, valuing the company at about $473 million—a roughly 49% premium to the prior close. [23]

Key deal details from today’s announcements:

  • Closing is targeted for Q3 2026, pending shareholder and regulatory approvals. [24]
  • The acquisition will expand First Eagle’s footprint in traditional fixed income and U.S. equities, using Diamond Hill’s strategies as a complement to First Eagle’s existing global value and small‑cap platforms. [25]

A separate shareholder‑rights law firm has already announced an investigation into whether Diamond Hill is getting a “fair price,” highlighting the potential for additional investor noise around the deal terms. [26]


8. Mawson Infrastructure Group (MIGI) – +39.9%

  • Sector: Bitcoin mining / digital infrastructure
  • Price / size: ~$9.37$10.7M market cap (nano‑cap). [27]

Bitcoin miner Mawson is again behaving like a leveraged BTC derivative—but there’s also company‑specific momentum:

  • A trading‑floor update notes the stock was up more than 40% intraday, with huge volatility and expanding volume. [28]
  • Mawson is presenting today at the Emerging Growth Conference, outlining a combined AI and Bitcoin growth plan and highlighting infrastructure expansion, including a recently extended lease for its Pennsylvania facility. [29]

Algorithmic forecast sites paint a very different picture:
One widely‑tracked model expects MIGI’s share price to decline over the next year, with projected downside from current levels and a long‑term peak below today’s quote. [30]

In other words, today’s move is more about momentum than fundamentals, and anyone chasing the spike is implicitly betting on continued crypto strength and speculative flows.


9. Planet Labs PBC (PL) – +32.8%

  • Sector: Satellite imagery / geospatial analytics
  • Price / size: ~$17.18$5.4B market cap. [31]

Planet is one of the rare multi‑billion‑dollar names on today’s leaderboard. The driver is straightforward: a better‑than‑expected quarterly report.

Coverage from AP and other outlets notes that Planet reported stronger revenue and results than analysts anticipated, sending the stock up more than 30% as investors cheered both the numbers and management’s outlook. [32]

With the stock now sharply higher, investors are debating:

  • Whether Planet can sustain growth in government and commercial imagery contracts
  • How quickly the company can move from top‑line momentum to consistent profitability

For now, the market is rewarding a combination of “beat and raise” and a still‑high‑growth space‑data story.


10. Velo3D (VELO) – +32.1%

  • Sector: Additive manufacturing for aerospace & defense
  • Price / size: ~$11.36$238M market cap. [33]

Velo3D shares are “exploding higher” after CEO Arun Jeldi highlighted the company’s deepening role in SpaceX’s Raptor engines and defense programs during the iAccess Alpha Virtual Best Ideas conference. [34]

According to today’s Benzinga recap and related analysis:

  • Velo3D is qualified on multiple parts in current Raptor engines and is already printing components for the next‑generation Raptor 4. [35]
  • Defense technology firm Anduril is an active customer, with several joint programs underway. [36]
  • The rally builds on news earlier this week of successful aerospace hardware deliveries in collaboration with Mears Machine and U.S. Navy‑linked projects. [37]

Technical and forecast services warn that VELO is now deep into overbought territory, with the stock up roughly 70% in two weeks and trading well above key moving averages, even as management is still targeting EBITDA breakeven by mid‑2026. [38]


Other notable gainers in today’s top 20

NEXGEL (NXGL) – +26.7%

NEXGEL jumped after the company announced a spin‑off of its drug‑delivery assets into a new entity called NexGelRx, under a structure where NEXGL keeps an equity stake and future royalty stream. [39]

The move is pitched as a way to separate medical‑device and drug‑development risk, potentially unlocking value if NexGelRx can secure partners or funding without over‑diluting the parent.


Ascent Solar Technologies (ASTI) – +24.2%

Ascent Solar, a long‑volatile thin‑film solar micro‑cap, climbed more than 20% despite no widely reported new press release or major analyst note today on mainstream wires. Given the stock’s tiny market cap (~$12M) and history of sharp spikes, today’s move looks largely technical and flow‑driven rather than tied to a fresh fundamental catalyst. [40]


Nextdoor Holdings (NXDR) – +23.9%

Neighborhood‑based social platform Nextdoor is in the midst of a multi‑day meme‑meets‑AI rally.

Today’s surge follows:

  • viral investment thesis from EMJ Capital’s Eric Jackson, who labeled Nextdoor “the most mispriced Agentic‑AI platform of the 2020s,” sparking a 40%+ move over the past two sessions. [41]
  • holiday survey press release highlighting how users increasingly rely on neighbors for shopping recommendations and local business discovery, reinforcing the platform’s “local graph” narrative. [42]

Commentary on Yahoo Finance and other sites stresses that despite the rally, NXDR remains an unprofitable, small‑cap social‑media play, and the stock’s newfound meme status could cut both ways. [43]


CapsoVision (CV) – +23.1%

Endoscopy‑tech firm CapsoVision jumped more than 20%. The company last reported Q3 2025 results in mid‑November, highlighting ongoing commercialization of its capsule endoscopy system for gastrointestinal diagnostics. [44]

With no fresh December 11 press release, today’s move likely reflects renewed interest in med‑tech names and low‑float dynamics rather than a new fundamental surprise.


Ohmyhome (OMH) – +18.8%

Singapore‑based tech‑enabled brokerage Ohmyhome bounced after a bruising few weeks that saw the Nasdaq‑listed micro‑cap slide sharply. Historical data show the stock has been grinding lower through November and early December. [45]

No new material U.S. regulatory filing or major newswire story landed today, suggesting the rebound is short‑covering and bargain‑hunting in a very illiquid name rather than a shift in fundamentals.


TransCode Therapeutics (RNAZ) – +18.8%

Oncology‑focused TransCode Therapeutics climbed nearly 19% after announcing a collaboration with Quantum Leap Healthcare Collaborative to launch a Phase 2a dose‑expansion trial of its lead candidate TTX‑MC138 in colorectal cancer, following positive Phase 1 data. [46]

The deal provides access to the well‑regarded I‑SPY trial infrastructure and keeps TransCode in the hunt as a niche RNA‑targeted oncology player—albeit still at a market cap under $10M.


Creative Global Technology Holdings (CGTL) – +18.2%

Restaurant and catering‑tech micro‑cap CGTL extended a rebound that began earlier this week. Recent updates include:

  • new auditor appointment disclosed last week, which some investors interpret as a step toward improving governance and financial reporting. [47]

With the company still posting weak financial results and trading below $2 per share, today’s jump looks more like a sentiment shift than a full re‑rating.


Gemini Space Station (GEMI) – +17.6%

Crypto‑adjacent Gemini Space Station rallied after its affiliate Gemini Titan LLC received a Designated Contract Market (DCM) license from the U.S. Commodity Futures Trading Commission, clearing the way for regulated prediction markets for U.S. customers. [48]

Coverage across crypto and fintech media highlights that:

  • Gemini plans to launch yes/no event contracts on real‑world topics, directly competing with Kalshi and Polymarket. [49]
  • The license comes after years of regulatory back‑and‑forth, making Gemini one of the few compliant players in this space.

Today’s gain reflects a regulatory “de‑risking” trade: the business model now has clearer legal footing, even though revenue at scale is still unproven.


Kandi Technologies Group (KNDI) – +17.5%

Chinese EV and off‑road vehicle maker Kandi climbed after a long stretch of subdued trading. Recent research pieces have focused on the company’s modest revenue growth and niche electric scooter / off‑road vehicle strategy, but there was no major new catalyst today beyond technical factors and a bounce from near its 200‑day moving average. [50]


Fast Track Group (FTRK) – +17.1%

Marketing‑and‑activation firm Fast Track Group rounds out today’s top 20.

  • Recent headlines highlighted the company’s completion of a brand activation campaign for Dongfeng’s 007 electric vehicle launch in Singapore, featuring Jessica Jung, underscoring its niche in experiential marketing for EV brands. [51]

With a market cap under $20M and a history of big swings, today’s jump is consistent with thin‑float momentum trading rather than a broad institutional re‑rating.


Big winners among household names

While micro‑caps dominated the percentage leaderboard, several widely held large‑caps also posted strong gains:

  • Cruise lines: Royal Caribbean (RCL), Norwegian Cruise Line (NCLH) and Carnival (CCL) were among the top S&P 500 gainers, rising about 5.5%, 5% and 4.5% respectively. Bank of America card‑spending data showed cruise spending up 11.2% year‑on‑year in November, even as overall travel spend declined, reinforcing the sector’s post‑pandemic resilience. [52]
  • Eli Lilly (LLY): Shares gained roughly 3.6% after the company reported encouraging results from a trial in obese or overweight patients with knee osteoarthritis, opening another potential use case for its weight‑loss medicine franchise. [53]
  • Walt Disney (DIS): Disney added about 1–1.5% after announcing a $1 billion investment in OpenAI and granting the AI company access to more than 200 Disney, Marvel, Pixar and Star Wars characters to generate short‑form video content. [54]
  • Rhythm Pharmaceuticals (RYTM): Outside the megacaps but still widely followed, RYTM jumped around 15%as it advanced obesity drug setmelanotide into a planned Phase 3 trial for Prader‑Willi syndrome on the back of positive mid‑stage data released today. [55]

These moves illustrate a broader pattern: investors were willing to pay up for clear, data‑driven catalysts—whether that’s better‑than‑expected clinical results, strong consumer demand, or strategic AI partnerships—even as the broader tech complex wobbled under Oracle‑related AI bubble fears. [56]


Themes behind today’s biggest U.S. stock gainers

Looking across the leaderboard and today’s news flow, several common threads stand out:

  1. Event‑driven repricing (M&A and takeovers)
    • DHIL is being repriced toward a firm cash acquisition price from First Eagle. [57]
    • PETS is reacting to a speculative buyout proposal, with the stock trading in between “standalone” and “deal‑done” valuations. [58]
  2. Regulatory green lights
    • BEAT (FDA clearance), RNAZ (Phase 2a trial collaboration), and GEMI (CFTC approval for prediction markets) all show how regulatory milestones can instantly reset expectations for tiny companies. [59]
  3. AI and defense narratives
    • VELO (SpaceX & Anduril ties) and NXDR (agentic‑AI social graph pitch) are perfect examples of how credible AI or defense links can supercharge price action, even when profitability is still a distant goal. [60]
  4. Crypto and tokenization exposure
    • MIGI (Bitcoin mining) and BTTC / SMX / GEMI (tokenization and prediction markets) all rallied into a backdrop of relatively firm Bitcoin prices and growing interest in regulated digital‑asset infrastructure. [61]
  5. Micro‑cap volatility
    • Many of today’s biggest movers—ATPC, ASTI, CGTL, FTRK and others—are nano‑caps, where modest dollar inflows and low float can create 20–100% intraday swings with little or no fresh fundamental news. [62]

What traders and investors should watch next

For short‑term traders, today’s action offers a reminder that:

  • The hottest gainers are often the riskiest, especially when the catalyst is unclear or purely narrative‑driven.
  • Intraday ranges of 30–70% on micro‑caps demand tight risk management, hard stops and a clear plan before entering.

For long‑term investors, the lesson is more about context:

  • Some winners—Planet Labs, Eli Lilly, the cruise lines—are tied to tangible earnings, data and demand trends. These moves may still overshoot, but they have clearer foundations. [63]
  • Others, especially BTTC, MIGI, NXDR, SMX and many sub‑$50M names, are trading heavily on story, liquidity and momentum. Here, fundamentals often take a back seat to speculative flows.

Final word

Today’s biggest U.S. stock gainers on December 11, 2025 are a microcosm of this market cycle:

  • Cheap money returning via Fed rate cuts,
  • AI hopes colliding with bubble worries,
  • And pockets of wild speculative excess in micro‑caps, digital assets and early‑stage biotech.

If you’re trading these names, treat them as what they are: high‑risk, high‑volatility opportunities, not guaranteed tickets to long‑term wealth. Always do your own due diligence and remember that this article is for informational purposes only and does not constitute investment advice.

References

1. stockanalysis.com, 2. stockanalysis.com, 3. stockanalysis.com, 4. stockanalysis.com, 5. www.stocktitan.net, 6. www.stocktitan.net, 7. stockanalysis.com, 8. www.gurufocus.com, 9. www.gurufocus.com, 10. www.gurufocus.com, 11. stockanalysis.com, 12. www.stocktitan.net, 13. www.stocktitan.net, 14. stockanalysis.com, 15. www.nasdaq.com, 16. www.nasdaq.com, 17. www.nasdaq.com, 18. www.nasdaq.com, 19. stockanalysis.com, 20. finance.yahoo.com, 21. finance.yahoo.com, 22. stockanalysis.com, 23. www.businesswire.com, 24. www.businesswire.com, 25. www.businesswire.com, 26. www.wvnews.com, 27. stockanalysis.com, 28. stockstotrade.com, 29. www.stocktitan.net, 30. coincodex.com, 31. stockanalysis.com, 32. mynews13.com, 33. stockanalysis.com, 34. www.benzinga.com, 35. www.benzinga.com, 36. www.benzinga.com, 37. www.morningstar.com, 38. www.benzinga.com, 39. www.quiverquant.com, 40. stockanalysis.com, 41. coincentral.com, 42. www.stocktitan.net, 43. finance.yahoo.com, 44. www.globenewswire.com, 45. simplywall.st, 46. www.stocktitan.net, 47. www.tipranks.com, 48. www.gemini.com, 49. www.financemagnates.com, 50. www.marketbeat.com, 51. www.stocktitan.net, 52. www.investopedia.com, 53. mynews13.com, 54. www.investopedia.com, 55. www.globenewswire.com, 56. mynews13.com, 57. www.businesswire.com, 58. www.gurufocus.com, 59. www.nasdaq.com, 60. www.benzinga.com, 61. stockanalysis.com, 62. stockanalysis.com, 63. mynews13.com

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