A Risk-Off Tuesday for the Broader Market, But Not for Everyone

Major indexes started September on a sour note — the S&P 500 fell roughly 0.70-0.71% to 7,633, and the Nasdaq Composite dropped about 1.03% to 26,100, as a surge in oil prices past $90 a barrel and Treasury yields near multi-decade highs pushed rate-hike odds toward two-thirds for this month. Chip stocks took the brunt of the selling. But a distinct handful of names moved sharply higher on idiosyncratic, company-specific news that had nothing to do with the macro backdrop. Here are today’s top gaining stocks, ranked by percentage move.

1. GoPro Inc. (GPRO) — Rocketed as Much as 82.61% on a Surprise Merger

Fundamental Data:

What Happened: GoPro announced a definitive merger agreement with Starman Optical, under which shareholders will receive $285 million in cash ($1.14 per share) while retaining roughly 10% ownership of the combined entity. The deal repays GoPro’s $92 million in outstanding debt in full and repositions the combined company’s optics IP toward AI-infrastructure optical transceivers, defense, government, robotics, and aerospace markets. The news landed just a day after a separate SEC filing revealed YouTube creator Markiplier (Mark Fischbach) had built an 8.5% stake worth roughly $9 million, making him GoPro’s largest individual shareholder and fueling a wave of retail speculation ahead of the merger announcement.

Bull Case: The merger resolves GoPro’s going-concern doubts and Nasdaq minimum-bid-price problem in one stroke, converting a structurally declining consumer camera business into cash plus equity exposure to a much larger addressable market in AI-infrastructure optics and defense.

Bear Case: The deal is expected to close by year-end 2026, subject to regulatory approval and a shareholder vote — plenty of time for the current speculative froth (driven partly by retail enthusiasm around Markiplier’s stake) to fade well before the transaction actually completes, and GoPro’s core hardware revenue remains down over 30% year-over-year regardless of the deal.

Forecast: Watch for the shareholder vote timeline and any regulatory review updates; with the stock this volatile on deal-plus-retail-speculation dynamics, expect continued sharp swings until the transaction path becomes clearer.

2. bioAffinity Technologies (BIAF) — Surged Up to 68.4% on Expanded Product Use Case

Fundamental Data:

What Happened: bioAffinity Technologies announced it is advancing its CyPath Lung test for surveillance of lung cancer survivors who have completed curative-intent treatment — a new commercial use case beyond the product’s original risk-assessment positioning. The move comes just over a week after the company’s 1-for-15 reverse stock split, which sharply reduced the outstanding share count and appears to be amplifying volatility in an already thinly-floated stock.

Bull Case: Expanding CyPath Lung’s approved use case into cancer surveillance meaningfully broadens the product’s addressable patient population beyond initial screening, potentially unlocking a new, recurring revenue stream from ongoing patient monitoring.

Bear Case: With trading volume nearly 29 times the average and a tiny post-split float, this kind of move is highly susceptible to a sharp reversal once the initial speculative volume subsides — the company’s underlying cash position remains thin at roughly $2.43 million as of the last reported quarter.

Forecast: Watch for confirmation of physician and health-system adoption of the expanded surveillance use case in coming weeks; that commercial traction, not the announcement alone, will determine whether today’s gain holds.

3. Fervo Energy (FRVO) — Jumped 28.41% on a 396-Megawatt Google Power Deal

Fundamental Data:

What Happened: Fervo Energy, an enhanced geothermal power developer, signed a 396-megawatt power purchase agreement with Alphabet’s Google, announced premarket — one of the largest geothermal power deals ever made, according to coverage of the announcement. The deal validates enhanced geothermal as a serious, at-scale power solution for AI data center demand, a theme that also lifted peers Ormat Technologies and NextEra Energy in sympathy.

Bull Case: Landing a deal of this scale with Google, one of the world’s largest data center operators, provides Fervo with a marquee reference customer and long-term revenue visibility that could catalyze further hyperscaler power agreements.

Bear Case: Fervo had fallen 46% since its 2026 IPO before today’s pop, reflecting persistent market skepticism about the capital intensity and execution risk of scaling enhanced geothermal technology — one large contract doesn’t erase that broader concern.

Forecast: Watch for details on project timeline and capital expenditure requirements to fulfill the 396 MW commitment; execution against this single large contract will be closely scrutinized as Fervo’s most important near-term proof point.

4. Ormat Technologies (ORA) — Rose 5.19% on the Same Geothermal Tailwind

Fundamental Data:

What Happened: As the industry’s only pure-play, vertically integrated geothermal company, Ormat rallied in sympathy with Fervo’s Google announcement today, reinforcing its own existing 150 MW Google geothermal power agreement signed earlier this year and highlighting broader institutional confidence in geothermal as reliable, carbon-free baseload power for AI data centers.

Bull Case: As the established, profitable incumbent in geothermal power generation, Ormat stands to benefit from any broader re-rating of the sector’s growth prospects that a high-profile deal like Fervo’s tends to trigger across the peer group.

Bear Case: Ormat’s much smaller single-digit percentage move relative to Fervo’s 28% pop reflects the market’s view that this is sympathy trading rather than a direct company-specific catalyst — the actual financial benefit to Ormat from a competitor’s deal is indirect at best.

Forecast: Watch for any expansion of Ormat’s own hyperscaler contract pipeline; sustained sector tailwinds would need to translate into Ormat’s own signed agreements to justify further upside beyond today’s sympathy move.

5. Opus Genetics (IRD) — Gained 5.9% Ahead of a Defining Clinical Data Readout

Fundamental Data:

What Happened: Opus Genetics rallied as the market arrived at what analysts have called a defining moment for the clinical-stage gene therapy company — the scheduled release of three-month topline data from Cohort 1 of its OPGx-BEST1 Phase 1/2 trial in Best Vitelliform Macular Dystrophy and Autosomal-Recessive Bestrophinopathy, two inherited retinal diseases with no approved treatments. Today’s move reflects pre-data positioning rather than the results themselves, which are expected in the coming days.

Bull Case: Both BTIG and B.Riley maintain Buy ratings with targets well above the current price, and the company’s $88.8 million cash position provides runway into 2029 — giving it staying power regardless of how this specific readout lands.

Bear Case: With shares already up 269% over the past year heading into the data, a disappointing readout from this small, five-participant Cohort 1 trial could trigger a sharp reversal of gains built almost entirely on anticipation.

Forecast: With actual topline data expected within days, this is a genuine binary setup — the stock’s next major move will be determined by the trial results themselves rather than any further pre-data positioning.

6. Akamai Technologies (AKAM) — Upgraded on a Compute Segment Inflection Call

Fundamental Data:

What Happened: Piper Sandler upgraded Akamai to Overweight, arguing the company’s Compute segment is “about to show a material inflection” and should accelerate as Akamai demonstrates it is benefiting from broader AI infrastructure buildouts, with the analyst citing a robust forward pipeline.

Bull Case: A material inflection in the Compute segment would represent a genuine diversification win for Akamai beyond its legacy content delivery network business, tapping directly into the AI infrastructure buildout theme dominating 2026 market narratives.

Bear Case: As with any single-analyst upgrade, the thesis remains unproven until reflected in actual reported Compute segment revenue growth in Akamai’s next earnings report — sentiment alone doesn’t guarantee the inflection materializes on schedule.

Forecast: Watch Akamai’s next quarterly report specifically for Compute segment revenue growth figures; that data point will validate or undercut Piper Sandler’s inflection thesis directly.

7. Hut 8 Corp (HUT) — A Quiet Beneficiary of Anthropic’s $35 Billion Compute Deal

Fundamental Data:

What Happened: Anthropic reportedly agreed to a $35 billion computing deal with Lambda, a cloud provider backed by Nvidia, with the data center being developed by Hut 8, a bitcoin miner turned data-center developer, in Texas — extending a Nvidia-Hut 8 agreement signed weeks earlier to secure that capacity, according to Wall Street Journal reporting.

Bull Case: Being the physical infrastructure developer behind a $35 billion AI compute deal gives Hut 8 a concrete, high-visibility revenue relationship with two of the industry’s most important players (Nvidia and Anthropic), reinforcing its transition from pure bitcoin mining into AI data center development.

Bear Case: Hut 8’s role appears to be as the developer/landlord rather than a direct party earning the full economics of the $35 billion headline figure — investors should be careful not to conflate deal size with Hut 8’s actual revenue capture from the arrangement.

Forecast: Watch for Hut 8’s own disclosure of specific contract terms and expected revenue contribution from the Texas facility; the market will need company-specific financial detail to properly value this relationship beyond the attention-grabbing headline number.

Quick-Reference Table: Today’s Top Gainers

Sector Sentiment Snapshot and Forecast

Today’s gainers were almost entirely idiosyncratic, company-specific stories moving against a genuinely negative broad-market backdrop — oil above $90, Treasury yields at multi-decade highs, and chip stocks under pressure. GoPro’s merger resolution caps off a saga that combined a real corporate transaction with retail-driven speculative fervor around the Markiplier stake, while Fervo Energy and Ormat’s shared rally underscores how geothermal power is emerging as a credible, investable theme within the broader AI data center power buildout. Opus Genetics’ pre-data positioning and bioAffinity’s low-float volatility both illustrate classic small-cap biotech dynamics, where anticipation and thin share counts can drive outsized moves independent of the broader market’s direction. With Broadcom, Snowflake, HPE, and NetApp all reporting tomorrow evening, expect the market’s attention to pivot quickly from today’s scattered idiosyncratic winners toward that dense earnings cluster.

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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, low-float, and clinical-stage biotech securities carry substantially elevated volatility and liquidity risk. Prices and figures cited reflect data available as of September 1, 2026 and are sourced from publicly available market data. Always complete independent due diligence prior to executing equity trades.

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Kasia Davis

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