After the Fed’s rate cut, Wall Street’s hottest winners range from tiny biotechs to meme‑style media stocks and AI‑linked innovators.
Market recap: Fed cut lights the fuse
U.S. stocks blasted higher on Wednesday, December 10, after the Federal Reserve cut its benchmark interest rate by 0.25 percentage points, citing growing cracks in the labor market and hinting at the possibility of more easing in 2026. The Dow Jones Industrial Average jumped roughly 1.0% (about 500 points), the S&P 500 gained around 0.7%, and the Nasdaq Composite added about 0.3%, leaving the broad market just shy of all‑time highs. [1]
That macro backdrop, combined with stock‑specific catalysts, created a perfect storm for some spectacular single‑day moves. As of the close of trading on Wednesday, December 10, 2025 (the latest completed U.S. session as of Thursday, December 11), these were the biggest percentage gainers across U.S. exchanges, according to StockAnalysis.com. [2]
Top U.S. stock gainers by percentage (Dec. 10 session)
Top 10 daily gainers (regular U.S. session)
(Price and market cap are approximate closing values) [3]
- Beasley Broadcast Group (BBGI) – +312.1% to $16.69 (≈$30M market cap)
- HeartBeam (BEAT) – +92.4% to $1.55 (≈$53M)
- Enveric Biosciences (ENVB) – +74.5% to $10.33 (≈$6M)
- Biodexa Pharmaceuticals (BDRX) – +65.1% to $6.72 (≈$4M)
- A SPAC III Acquisition (ASPC) – +60.4% to $16.81 (≈$39M)
- iRobot (IRBT) – +48.4% to $5.24 (≈$167M)
- Creative Global Technology (CGTL) – +47.4% to $0.97 (≈$25M)
- Mawson Infrastructure Group (MIGI) – +45.7% to $6.70 (≈$8M)
- Photronics (PLAB) – +45.4% to $37.35 (≈$2.2B)
- Ashford Hospitality Trust (AHT) – +44.0% to $4.55 (≈$30M)
Rounding out the top 20 are names like Sidus Space (SIDU), TaoWeave (TWAV), NovaBay (NBY), CapsoVision (CV), Velo3D (VELO) and Warby Parker (WRBY), the latter up 27.4% to $29.57 with a market cap of around $3.6B. [4]
Below, we break down the key stories, news, and fresh analysis as of December 11, 2025, behind the day’s most dramatic movers.
1. Beasley Broadcast Group (BBGI): meme‑stock fever hits local radio
Move: +312% on the day; intraday spike above $26 before closing at $16.69. [5]
Regional radio operator Beasley Broadcast Group became the latest unlikely meme stock. Coverage from industry site RadioInsight describes day traders piling into BBGI in a frenzy reminiscent of GameStop and AMC, with the stock up more than 250% by late morning and over 300% by the closing bell. [6]
Importantly, the move was not driven by major fundamental news about Beasley’s operations. Short‑term trading commentary from Stockstotrade flagged BBGI as a high‑volatility momentum play, with intraday jumps well over 100% attracting speculative capital rather than long‑term investors. [7]
A quantitative forecast from StockInvest.us underscores the risk side: the site notes extreme day‑to‑day volatility (over 300% high‑to‑low swing on the session) and warns that with little volume “support” below current prices, sharp pullbacks are possible if speculative interest fades. [8]
Takeaway: BBGI’s surge is almost entirely sentiment‑driven. For traders, it’s a textbook meme‑style short‑term opportunity; for long‑term investors, the lack of a fundamental catalyst and tiny market cap make this a very high‑risk name.
2. HeartBeam (BEAT): FDA greenlight for at‑home cardiac monitoring
Move: +92% on the day; premarket surge above 50–60% before regular‑session follow‑through. [9]
HeartBeam, a cardiac‑technology company, earned one of the day’s most fundamentally driven rallies after announcing FDA 510(k) clearance for its first‑ever, cable‑free synthesized 12‑lead ECG software for at‑home arrhythmia assessment. [10]
According to the company and multiple news reports:
- The software allows a small, wearable device to generate a full 12‑lead ECG comparable to clinic‑grade tests, not just the limited single‑ or 6‑lead readings common in consumer devices. [11]
- The clearance overturns a previous FDA rejection and marks a major milestone in HeartBeam’s commercial roadmap. [12]
Market commentary from outlets such as AInvest highlights how this regulatory win triggered a “seismic shift” in sentiment toward the micro‑cap, with turnover jumping several hundred percent and valuation still reflecting a loss‑making, early‑stage med‑tech profile. [13]
Takeaway: BEAT’s move is rooted in material regulatory news, but the stock is tiny, volatile, and newly re‑rated. Bulls are betting that at‑home cardiac monitoring is a multi‑billion‑dollar opportunity; bears note that commercialization, reimbursement, and competition risks remain huge.
3. Enveric Biosciences (ENVB): patent hopes ignite a tiny neuro‑drug developer
Move: +74.5% at the close; premarket and intraday moves exceeded 100%. [14]
Biotech micro‑cap Enveric Biosciences exploded higher after the company received a Notice of Allowance from the U.S. Patent and Trademark Office for intellectual property covering its EVM301 series, a set of neuroplastogenic molecules targeting mental health and neuropsychiatric disorders. [15]
Key points from coverage on Investing.com and Benzinga:
- The patent allowance supports Enveric’s strategy to build a differentiated pipeline of small‑molecule therapies for conditions such as depression and PTSD. [16]
- Shares at one point more than doubled in premarket trading, with day traders and momentum screens picking up on the move. [17]
Despite Wednesday’s surge, Enveric remains very small by market‑cap terms, and its drug candidates are still at early‑development stages, meaning future dilution and clinical‑trial risk are significant.
Takeaway: ENVB shows how a single IP milestone can transform sentiment in micro‑cap biotech overnight—but also how fragile those gains can be if subsequent clinical or financing news disappoints.
4. Mawson Infrastructure Group (MIGI): conference hype meets AI and digital assets
Move: +45.7% on the day, continuing a multi‑session rally. [18]
Mawson Infrastructure Group, a small U.S.‑listed operator of digital‑infrastructure and Bitcoin‑mining facilities, surged after highlighting its slot at the 88th Emerging Growth Conference and positioning itself as a play on AI and high‑performance computing (HPC). [19]
Recent news and analysis emphasize:
- Management has been marketing Mawson as a next‑generation digital infrastructure provider for AI, HPC, and digital assets, not just a traditional crypto miner. [20]
- Commentators at AInvest and other outlets link Wednesday’s jump to event‑driven optimism around the conference, a sharp spike in turnover, and the stock’s very low float following a 1‑for‑20 reverse split in November. [21]
Technical services like StockInvest.us describe MIGI as highly volatile, with double‑digit percentage swings and a “high risk” profile despite the recent uptrend. [22]
Takeaway: MIGI’s rally sits at the crossroads of three hot themes—AI infrastructure, Bitcoin, and small‑cap speculation. The story is more about positioning and momentum than about immediate earnings power.
5. Ashford Hospitality Trust (AHT): strategic review sparks REIT re‑rating
Move: +44.0% on the day. [23]
Hotel REIT Ashford Hospitality Trust soared after announcing that its board had formed a special committee to explore strategic alternatives, including a potential sale of the company or other major transactions intended to “maximize shareholder value.” [24]
Highlights from company releases and financial press:
- The REIT, which owns roughly 70 hotels with about 17,000 rooms across the U.S., has argued that its stock significantly undervalues the underlying real estate portfolio. [25]
- The strategic review also includes changes to non‑traded preferred stock offerings and redemptions, a move that has drawn attention from income‑focused investors. [26]
Market reaction reflects classic “deal premium” behavior: investors price in the possibility of a sale or major recapitalization, even though there is no guarantee of a transaction or favorable terms.
Takeaway: AHT’s jump is rooted in M&A optionality, not an immediate turnaround in hotel fundamentals. If the review ends without a deal, some of this week’s gains could unwind quickly.
6. iRobot (IRBT): Roomba maker becomes a fresh short‑squeeze target
Move: +48.4% on the day; up about 72% over the past four sessions. [27]
Robot vacuum maker iRobot—famous for the Roomba—was another eye‑catching winner, but here the driver was purely technical rather than fundamental. Business Insider reports that:
- IRBT shares have surged more than 70% in four days, hitting intraday highs around $5.20.
- Short interest is roughly 40% of the free float, with an extremely short “days to cover” metric, setting up prime conditions for a short squeeze as bearish traders rush to buy back shares. [28]
Crucially, the article notes no new major business updates that would justify such a re‑rating on fundamentals. Instead, chatter on social platforms like Stocktwits and X has turned “extremely bullish,” echoing playbooks seen in earlier meme rallies.
Takeaway: IRBT’s surge is a lesson in short‑squeeze mechanics—heavy short interest, small float, and online buzz can trump fundamentals in the short term, but that also raises the risk of a sharp reversal once squeeze dynamics fade.
7. Warby Parker (WRBY): AI smart glasses partnership fuels sustained rally
Move: +27.4% on the day, capping a multi‑session jump after major partnership news. [29]
Eyewear retailer Warby Parker is one of the few larger‑cap names on today’s top‑gainers list. The stock started moving earlier in the week after the company unveiled a high‑profile partnership with Alphabet’s Google (and, in some communications, Samsung) to launch AI‑powered smart glasses based on Google’s Android XR platform and Gemini AI models, with the first products slated for 2026. [30]
Key elements of the Warby story:
- Reuters reports that the companies are working on two device types—one focused on screen‑free AI assistance via audio and sensors, and another with in‑lens displays for navigation, translation, and more. [31]
- Warby’s co‑CEO Neil Blumenthal has told Reuters he expects the company to end 2025 more profitable than previously forecast, partly thanks to AI‑driven efficiencies in its stores. [32]
- Analysis on TipRanks, Investing.com and Trefis frames WRBY as a speculative play on AI eyewear and wearables, but notes that valuation is becoming stretched relative to near‑term earnings. [33]
Takeaway: Unlike many micro‑cap gainers, WRBY’s move is driven by a strategic partnership with a tech mega‑cap and improving profitability. Still, much of the value now rests on a product category—AI glasses—that is early, competitive and unproven with mass consumers.
8. Photronics (PLAB) & GE Vernova (GEV): earnings and AI power demand
Although the absolute biggest gainers skew heavily toward micro‑caps, two larger names drew a lot of institutional attention on December 10: Photronics (PLAB) and GE Vernova (GEV).
According to a Nasdaq/Motley Fool summary of “Biggest Stock Movers Today,” Photronics rallied about 45% after reporting fiscal Q4 and full‑year 2025 results. While revenue and earnings were slightly down year‑over‑year, they beat cautious expectations, and management highlighted a solid U.S. business and promising expansion in South Korea that could make 2026 a better year. [34]
In the same piece, GE Vernova—a major player in gas turbines and energy infrastructure—jumped roughly 16% after sharply raising its 2028 sales and free‑cash‑flow targets at an investor day. The company is leaning on surging electricity demand from AI and cloud data centers, expecting its order backlog to climb from about $135 billion to $200 billion over three years. [35]
Takeaway: PLAB and GEV show the more traditional side of “biggest gainers”: solid, if imperfect, fundamentals and upbeat medium‑term outlooks amplified by AI‑related demand stories.
Common themes behind today’s biggest gainers
Looking across the leaderboard, several clear themes emerge:
- Speculation and meme dynamics
- BBGI and IRBT illustrate how social‑media buzz and high short interest can produce triple‑digit percentage moves detached from near‑term fundamentals. [36]
- Binary biotech and med‑tech catalysts
- HeartBeam and Enveric show how FDA decisions and patent allowances can instantly reprice small healthcare names, often with dramatic volatility. [37]
- Event‑driven and M&A optionality
- MIGI’s conference‑driven squeeze and AHT’s strategic review underline how investor conferences, reverse splits, and sale processes can trigger sharp re‑ratings in thinly traded stocks. [38]
- AI and next‑gen hardware as growth narratives
- From PLAB’s chip‑related optimism to GEV’s bets on AI‑driven power demand and WRBY’s AI smart glasses, investors continue to reward stories tied to artificial intelligence and digital infrastructure. [39]
What this means for investors and traders
For short‑term traders, today’s list of biggest U.S. stock gainers is a playground of volatility:
- Many of the top names are micro‑caps under $50M in market value, where low liquidity can magnify both gains and losses. [40]
- Intraday ranges of 30–70% (or more) are common, increasing the importance of strict risk management, position sizing, and clear exit plans. [41]
For long‑term investors, the lesson is more about context than chasing:
- Some gainers, like Photronics, GE Vernova, and Warby Parker, are tethered to tangible themes—semiconductor tooling, power demand, and AI‑powered eyewear—but even these can overshoot on exuberant expectations. [42]
- Others, particularly BBGI, IRBT, MIGI, ENVB and BEAT, now trade largely on speculation and story, where fundamentals may take a back seat to flow‑driven dynamics.
How this article was compiled
- Gainer rankings are based on percentage moves for U.S.‑listed stocks during the regular session on Wednesday, December 10, 2025, using StockAnalysis.com’s “Gainers Today” screener. [43]
- News, forecasts, and analysis come from company press releases, major wire services (AP, Reuters), financial news outlets (Nasdaq/Motley Fool, Business Insider, Investing.com, MarketWatch, TipRanks, Trefis), and specialist trading/technical sites, all published or updated in the last 24–48 hours. [44]
References
1. www.investopedia.com, 2. stockanalysis.com, 3. stockanalysis.com, 4. stockanalysis.com, 5. stockanalysis.com, 6. radioinsight.com, 7. stockstotrade.com, 8. stockinvest.us, 9. stockanalysis.com, 10. ir.heartbeam.com, 11. www.investing.com, 12. www.tradingview.com, 13. www.ainvest.com, 14. stockanalysis.com, 15. www.investing.com, 16. www.investing.com, 17. www.benzinga.com, 18. stockanalysis.com, 19. www.ainvest.com, 20. www.tipranks.com, 21. www.ainvest.com, 22. stockinvest.us, 23. stockanalysis.com, 24. www.prnewswire.com, 25. www.bisnow.com, 26. www.stocktitan.net, 27. stockanalysis.com, 28. www.businessinsider.com, 29. stockanalysis.com, 30. www.reuters.com, 31. www.reuters.com, 32. www.reuters.com, 33. www.investing.com, 34. www.nasdaq.com, 35. www.nasdaq.com, 36. radioinsight.com, 37. ir.heartbeam.com, 38. www.ainvest.com, 39. www.nasdaq.com, 40. stockanalysis.com, 41. stockinvest.us, 42. www.nasdaq.com, 43. stockanalysis.com, 44. apnews.com
