The major indexes closed lower Tuesday as traders braced for Wednesday’s Fed decision, with the Dow shedding 328 points and the Nasdaq falling 0.78%. But beneath the surface, a wild collection of small-cap stocks staged some of the most dramatic single-session moves of the month — including one microcap that rose nearly 700% with no identifiable news at all. Skipping the mega-cap names entirely, here are the top gaining stocks today.

Top gaining stocks today, Sept. 15, 2026

1. ReTo Eco-Solutions (RETO) | Closed at $2.80, Up an Astonishing 676.27%

The Move Nobody Can Fully Explain

ReTo Eco-Solutions delivered the single wildest move of the day, and the honest answer is that no clear corporate catalyst appears to explain it.

Full Data & Snapshot:

Why It Gained: ReTo, a Beijing-based manufacturer of eco-friendly construction materials, has a well-documented history of extreme volatility tied to its precarious Nasdaq listing status, including a prior delisting determination notice and a 10-to-1 reverse split earlier this year. No specific press release, filing, or news item from today appears to explain this particular move, which is consistent with the kind of low-float, thinly-traded speculative trading that periodically grips microcaps with very small public floats. Volume of over 231 million shares against a $23 million market cap is a staggering mismatch that itself signals highly unusual trading activity.

Technicals: With volume this extreme relative to market cap, essentially all technical levels from prior sessions are meaningless — this is a stock trading almost entirely on momentum and speculative flow rather than any fundamental repricing.

Bull Case: It’s difficult to construct a fundamentals-based bull case here — the most that can be said is that extreme low-float stocks can occasionally sustain momentum longer than expected if fresh retail attention continues flowing in.

Bear Case: A 676% single-day move with no identifiable catalyst, in a stock with a history of reverse splits and delisting risk, is a textbook setup for an equally violent reversal once the speculative flow dries up.

Forecast: Approach with extreme caution — moves like this rarely hold, and the absence of any real news makes this one of the highest-risk names on the market today.

2. Veea Inc. (VEEA) | Closed at $5.71, Up 149.34% on a $750 Million Merger

An Edge-Computing Company’s Bold Health-Tech Pivot

Veea delivered the day’s most substantive story: a merger announcement that instantly transforms the company’s growth narrative.

Full Data & Snapshot:

Why It Gained: Veea and NovaGen Group B.V. signed a term sheet targeting a definitive merger to create NovaGen Health Networks, combining Veea’s edge computing and cybersecurity infrastructure with NovaGen’s cellular reprogramming and clinical services. GeoNova Capital has committed to a $10 million cornerstone investment in the combined entity, which the companies estimate could be valued around $750 million based on internal projections. Initial deployments are targeted for NovaGen clinics and partner hospitals in the fourth quarter of 2026. The stock has now run from roughly $0.10 in late August to above $5.70 today — an extraordinary multi-week rally.

Technicals: The stock has shown a pattern of consolidating gains rather than fully round-tripping after each leg higher, a sign that at least some of the buying reflects genuine repositioning around the merger news rather than pure momentum. Watch whether the stock can hold above the $4.00–$4.50 zone from earlier in the session.

Bull Case: A term sheet with a committed $10 million cornerstone investor and a clearly defined Q4 2026 deployment timeline gives this merger more substance than a typical speculative microcap announcement.

Bear Case: Veea’s own margins remain deeply negative with weak cash flow, a term sheet is not a definitive agreement, and the company has faced Nasdaq noncompliance notices and delayed quarterly filings in the recent past.

Forecast: Watch for the definitive merger agreement, targeted for “coming weeks” per the companies — confirmation of binding terms would be the next major catalyst, while a collapsed deal would likely reverse much of this month’s gains.

3. DataMEDS AI (MEDS) | Closed at $1.62, Up 87.22% on an App Launch

A Pharmacy-Tech Rebrand Targets Rural GLP-1 Patients

DataMEDS AI, formerly known as Wellgistics Health, surged as its newly rebranded health-IT platform approaches a high-profile product launch.

Full Data & Snapshot:

Why It Gained: DataMEDS AI is preparing to launch its “Health Lives Here” app in partnership with NFL Alumni Health, targeting GLP-1 weight-loss drug patients in rural communities, supported by Corexa Health. The company also has a pending “Datavault Transaction” with Datavault AI, EOS Technology Holdings, and Scilex Holdings designed to expand its PharmacyChain licensing business and acquire biometric patent assets. The rebrand from Wellgistics Health to DataMEDS AI in July, combined with these layered catalysts, has kept the stock highly volatile as investors position ahead of the app’s public rollout.

Technicals: Volume of nearly 65 million shares against a sub-$5 million market cap represents an enormous mismatch, consistent with speculative trading around the anticipated product launch news flow.

Bull Case: Partnering with a recognized brand like NFL Alumni Health for a rural healthcare access play targets a genuine underserved market, and the pending Datavault transaction could meaningfully diversify the company’s licensing revenue if completed.

Bear Case: A company with a -433.9% net profit margin and a current ratio of just 0.09 faces serious near-term liquidity concerns, and neither the app launch nor the Datavault transaction have yet produced confirmed revenue impact.

Forecast: Watch for the actual public launch of the Health Lives Here app — early user adoption metrics, rather than the launch announcement itself, will determine whether this rally has real staying power.

4. First Breach (FBDT) | Closed at $1.00, Up 55.98% on Defense-Sector Momentum

An Ammunition and Drone Maker’s Volatile Public Debut Continues

First Breach, a vertically integrated American ammunition and drone manufacturer, extended its wild post-IPO trading pattern with another sharp single-day gain.

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Why It Gained: First Breach has been one of the most volatile recent Nasdaq debuts, having opened at $12.00 on its August 20 direct listing before collapsing more than 94% within two weeks amid disclosed going-concern doubts. Today’s bounce comes as the company approaches its next disclosed milestone — completing initial drone prototypes at its Hagerstown, Maryland facility under its strategic agreement with Hellbender, targeted for October 1, 2026 — giving speculative traders a concrete near-term catalyst to trade around.

Technicals: With the stock still down roughly 92% from its IPO price despite today’s gain, this remains a name defined by extreme volatility rather than a stable trend. Volume of over 75 million shares against a roughly $55 million market cap continues the pattern of intense speculative interest since the company’s debut.

Bull Case: A vertically integrated, American-made ammunition and drone manufacturer sits squarely in a sector — domestic defense manufacturing — that has drawn significant government and investor attention this year, and the approaching prototype milestone gives near-term catalyst visibility.

Bear Case: The company’s own filings disclosed “substantial doubt about its ability to continue as a going concern,” and a direct listing structure that raised no new capital for the company leaves little cushion if the prototype milestone slips.

Forecast: The October 1 prototype completion date is the single most important near-term catalyst to watch — a successful, on-schedule demonstration could meaningfully stabilize sentiment, while any delay would likely reignite the stock’s post-IPO collapse.

5. PDS Biotechnology (PDSB) | Closed at $0.585, Up 46.65% on Continued Financing Momentum

The Nant Capital Deal Keeps Fueling This Rally

PDS Biotechnology extended its powerful rebound for a second straight session as investors continue digesting last week’s major financing announcement.

Full Data & Snapshot:

Why It Gained: PDS Biotechnology’s up-to-$22.55 million PIPE financing led by Nant Capital continues driving sustained buying interest, with the deal earmarked to advance lead candidate PDS0301 into late-stage trials for metastatic colorectal cancer. Nant Capital’s right to designate two board members — including biotech investor Dr. Patrick Soon-Shiong — so long as it holds at least 15% of shares continues to provide a credibility anchor that’s kept momentum alive well beyond the initial announcement day.

Technicals: Shares have now risen substantially off recent lows near $0.22, with today’s volume of over 371 million shares — among the highest of any stock on this list — confirming this remains one of the most actively traded small-cap biotech stories in the market right now.

Bull Case: Backing from a marquee biotech investor combined with a clear funding path to a Phase 3 trial removes one of the most significant overhangs a clinical-stage biotech can carry.

Bear Case: The company terminated a separate Phase 3 head-and-neck cancer trial earlier this month, reflecting a business still navigating meaningful pipeline setbacks even as this particular financing story runs hot.

Forecast: The next major catalyst remains confirmation of FDA Phase 3 protocol submission, which would unlock the second $11 million tranche of financing under the PIPE agreement.

6. My Size (MYSZ) | Closed at $2.32, Up 39.76% on Sustained Growth Momentum

An AI Fashion-Tech Platform’s Winning Streak Continues

My Size extended a strong run built on a string of consecutive quarters of accelerating revenue growth across its integrated fashion technology platform.

Full Data & Snapshot:

Why It Gained: My Size has posted back-to-back quarters of accelerating growth — 62% year-over-year revenue growth in Q1 2026 followed by 53% growth in Q2 2026 — as its AI-driven sizing and circular fashion platform continues expanding, including a recent non-binding letter of intent to acquire select assets of EyeFitU to broaden its AI sizing technology and customer base. The Israeli fashion-tech company has also been expanding its strategic focus into the Asia-Pacific region, feeding sustained investor interest in the name even without a single, isolated news catalyst today.

Technicals: With a market cap under $2 million, even modest dollar volumes of buying can produce outsized percentage moves — today’s turnover of nearly 29 million shares reflects intense speculative interest layered on top of genuine revenue growth momentum.

Bull Case: Consistent, accelerating double-digit revenue growth across multiple consecutive quarters is a genuinely rare combination for a stock this small, and the pending EyeFitU asset acquisition could further scale the AI sizing platform’s reach.

Bear Case: A market cap under $2 million despite meaningfully growing revenue suggests the market remains deeply skeptical of the company’s path to profitability, and circular-fashion and sizing-tech remain a crowded, competitive space.

Forecast: Continued quarter-over-quarter revenue growth disclosures, rather than any single headline, are likely to remain the primary driver of this stock’s trajectory going forward.

7. Vera Bradley (VRA) | Closed at $4.09, Up 34.54% on an Earnings Beat and Raised Guidance

A Legacy Handbag Brand’s Turnaround Gains Real Traction

Vera Bradley delivered the most fundamentally solid story of the day: a real earnings beat from an established, revenue-generating consumer brand.

Full Data & Snapshot:

Why It Gained: Vera Bradley shares surged after a positive earnings surprise alongside updated full-year guidance, marking a significant milestone in the handbag and accessories maker’s ongoing turnaround effort. Unlike most of the other names on today’s list, Vera Bradley is an established, profitable-in-recent-periods consumer brand with real store and e-commerce revenue — making this a fundamentally different kind of gainer than the speculative microcaps dominating the rest of the list.

Technicals: Volume of nearly 11 million shares — well above typical turnover for a company this size — confirms broad-based buying interest following the report, with the stock’s strong percentage move reflecting genuine repricing around improved forward guidance.

Bull Case: A raised full-year outlook following a genuine earnings beat suggests the company’s turnaround initiatives — likely including cost discipline and brand-refresh efforts common in legacy retail turnarounds — are beginning to show measurable results.

Bear Case: Legacy specialty-retail turnarounds can be fragile, and a single strong quarter doesn’t guarantee that improved guidance will hold through a full holiday shopping season amid continued consumer spending uncertainty.

Forecast: Watch holiday-quarter same-store sales trends closely — sustained momentum through the critical fourth-quarter shopping season will be the real test of whether this turnaround has staying power beyond a single earnings beat.

8. Advasa Holdings (ADBT) | Closed at $0.127, Up 30.62% in Continued Extreme Volatility

A Crypto-Payments Fintech’s Wild Swings Continue

Advasa Holdings remains one of the most volatile names in the market, bouncing sharply today after a punishing multi-week decline.

Full Data & Snapshot:

Why It Gained: Advasa Holdings, which operates the FUKUPE Earned Wage Access platform in Japan and recently added USDC stablecoin support to its ADVASA Visa card, is attempting to stabilize after falling more than 90% in the weeks since its August direct listing. Today’s bounce, on volume of nearly 270 million shares, suggests short-covering and bargain-hunting activity following the stock’s dramatic collapse, rather than any single fresh catalyst — though the company’s ongoing real-world-asset tokenization plans remain a background narrative supporting speculative interest.

Technicals: With volume this extreme relative to the company’s size, this remains one of the most mechanically unstable stocks in the market — capable of large moves in either direction on relatively modest news flow.

Bull Case: A stock that has already fallen this dramatically from its post-listing highs offers asymmetric upside if the USDC payment integration or RWA tokenization plans gain genuine commercial traction.

Bear Case: A more than 90% decline in weeks following a direct listing is an extreme red flag, and today’s bounce could simply reflect a technical dead-cat rally rather than a genuine change in the underlying trajectory.

Forecast: This remains an exceptionally high-risk, high-volatility situation with little middle ground — watch for either a sustained multi-day recovery or a resumption of the prior downtrend as the key signal of where this settles.

9. Horizon Quantum Holdings (HQ) | Closed at $13.20, Up 27.66% as Overhang Clears

A Quantum Computing Software Name Removes a Key Uncertainty

Horizon Quantum Holdings climbed as the company clarified its capital structure, removing a source of investor uncertainty that had weighed on shares.

Full Data & Snapshot:

Why It Gained: Horizon Quantum issued a filing clarifying its issued and outstanding share count — 34,811,740 Class A shares and 19,744,585 Class B shares as of September 14 — along with details on its business-combination lock-up agreements, which remain in effect until as late as March 2028 for most holders. Providing this clarity appears to have reduced dilution-related uncertainty that had been weighing on the stock, contributing to today’s rally alongside generally improved sentiment across the broader quantum computing sector this week.

Technicals: With a market cap north of $700 million, Horizon Quantum is a larger, more institutionally-relevant name than most others on this list, and today’s volume of 2.5 million shares — multiples above typical turnover — suggests the share-count clarification was viewed as a meaningfully positive development.

Bull Case: Removing ambiguity around share count and lock-up expiration dates gives institutional investors more confidence to model potential future dilution, and the company’s strategic collaboration with Quantum Machines continues to build out its programming-tools ecosystem.

Bear Case: Lock-up agreements for most shareholders don’t expire until March 2028, meaning today’s clarity doesn’t eliminate dilution risk — it simply provides a clearer timeline for when that risk could eventually materialize.

Forecast: Watch broader quantum-sector sentiment alongside company-specific developments — Horizon Quantum has shown a pattern this year of moving in tandem with peers like IonQ, Rigetti, and D-Wave on sector-wide news as much as its own announcements.

10. CL Workshop Group (NWGL) | Closed at $1.74, Up 43.80% in Unexplained Volatility

A Macau Forestry Company’s Latest Unpredictable Swing

CL Workshop Group, formerly known as Nature Wood Group, rounds out today’s list with another entry in its long history of sharp, difficult-to-explain single-session swings.

Full Data & Snapshot:

Why It Gained: CL Workshop Group, a Macau-headquartered, vertically-integrated forestry company with timber concessions in Peru, has a well-documented pattern of extreme volatility, having moved more than 20% in a single session on numerous occasions this year alone, including sharp rallies and equally sharp collapses with limited news attached to either direction. No specific press release or filing from today appears to explain this particular move, consistent with the stock’s characteristically thin trading and small public float. The company has previously disclosed difficulty meeting SEC filing deadlines and has seen multiple changes to its board and controlling shareholder structure over the past year.

Technicals: With volatility “more volatile than 75% of American stocks” on a normal week, per independent analysis, and earnings that have declined significantly over the past five years, this stock’s price action tends to reflect speculative trading flow far more than underlying business fundamentals.

Bull Case: A vertically integrated forestry operation with real revenue and forest concessions provides at least some underlying asset backing that purely speculative shell-style microcaps lack.

Bear Case: A history of earnings declining 72% annually over five years, repeated governance changes, and a pattern of unexplained volatility make this a highly unpredictable name to trade on any given day, including today.

Forecast: Absent a clear catalyst, expect continued erratic price action — this is a name where technical levels carry limited predictive value given the stock’s demonstrated pattern of sharp, largely unexplained reversals.

At a Glance: Today’s Top Gaining Stocks

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Disclaimer: This publication is entirely for informational and journalistic purposes and does not constitute formal financial, investment, or legal advice. All market investments carry inherent risks of capital loss, and small-cap, high-volatility stocks like those featured above carry elevated risk. Stock prices, percentage moves, and market data cited reflect figures available at the time of publication and are subject to change as trading continues. Analyst price targets and ratings are third-party estimates and do not guarantee actual results. Always complete independent due diligence prior to executing equity trades.

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Kasia Davis

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