Premarket Stock Movers — September 1, 2026: Why GPRO, LIDR, SSM, BIAF & WETO Are Surging

GPRO — GoPro, Inc. (+72.8%)

GoPro is surging 72.8% in premarket trading to $1.51, on an extraordinary 126.4 million shares — more than nine times its 20-day average volume of 13.9 million. For a stock sitting 69.7% below its 52-week high and carrying a $138.6 million market cap, this is a seismic move.

Why it's moving: Multiple sources point to a single headline catalyst: YouTube mega-creator Markiplier (real name Mark Fischbach) has disclosed a stake that makes him GoPro's largest Class A shareholder, reportedly representing a nearly $10 million investment. Headlines across Advfn, Benzinga, ThePCEnthusiast, and Stocktwits all confirm this as the driver. The news broke overnight and the rally has been sustained through the premarket hours. CEO Nicholas Woodman also filed a Form 4 in July showing he purchased over 19.2 million shares, signaling insider confidence well ahead of this morning's pop.

The short setup adds fuel. GoPro's squeeze score is 72 out of 100 — one of the higher readings in today's premarket scan. Short interest stands at approximately 24.9 million shares, or about 3.3 days to cover (meaning it would take shorts roughly 3.3 average trading days to buy back all their borrowed shares — a meaningful overhang). With short-volume at 33% and a free float of 86.6%, a wave of short-covering on top of retail enthusiasm can amplify moves quickly. Reddit's r/all-stocks is already tracking it at rank #19 with 23 mentions.

The prior-day chart heading into this morning's move shows a mixed moving-average stack, an RSI of 69, and an ADX of only 19 — suggesting the trend wasn't strongly established before this catalyst hit. StockSetups assigns a conviction score of 38/100 and a grade of D, reflecting a technically challenged setup. The bullish marubozu candle on the prior session (a candle with little-to-no wicks where buyers dominated the entire range) is at least constructive, but the trend-template score of 2 out of 6 confirms GPRO was not in a healthy technical uptrend. This move is news- and momentum-driven, not a clean breakout from accumulation.

Be careful here. Stocks that jump 70%+ on celebrity-stake news are exciting — and dangerous. The move may already be partially priced in by the time regular trading begins at 9:30 AM ET. Chasing a name this extended without a clear risk level is a high-risk proposition.

LIDR — AEye, Inc. (+43.0%)

AEye is trading up 43.0% to $1.63 on 54.2 million shares in the premarket — a jaw-dropping 63 times its 20-day average volume of 859,003 shares. The $53 million market-cap lidar company is one of the morning's most extreme volume outliers.

Why it's moving: The catalyst is clearly identified: AEye announced that its Apollo™ Lidar system has been selected by Lunar Outpost for the Pegasus Lunar Terrain Vehicle, opening what the company describes as a new market category in space mobility. Lidar — short for light detection and ranging — is a sensor technology that uses laser pulses to create detailed 3D maps of surroundings. Winning a contract for a lunar rover application is a high-profile, credibility-building win for a company in a competitive sector.

The technical picture heading into this morning was uninspiring on its own. AEye carried a bearish moving-average stack, RSI of 38 (below the neutral 50 midpoint), ADX of 18 (indicating weak trend momentum), and a trend-template score of 0. StockSetups' conviction score sits at 0/100 with a grade of D. The stock was also 66% below its 52-week high. In other words, the chart was weak — this move is entirely about the news, not a technical setup resolving.

The squeeze profile here is modest: a squeeze score of 21/100, short interest of about 2 million shares, and only 1.6 days to cover. Short-volume is 45%, but the days-to-cover reading suggests a short squeeze — where short-sellers scramble to buy back shares, pushing the price higher — is not the primary driver. This appears to be a pure news catalyst bringing in buyers who were previously absent.

With a $53 million market cap and a stock trading at penny-stock levels ($1.63 premarket), position sizing and volatility risk are critical considerations. News-driven spikes in micro-caps can reverse sharply once the initial buying exhausts itself.

SSM — Sono Group N.V. (+42.3%)

Sono Group is up 42.3% to $3.77 on 9.2 million premarket shares — roughly 66 times its 20-day average of 138,754. With a market cap of just $3.8 million, SSM is a micro-cap shell that is printing enormous percentage moves on very thin absolute liquidity.

Why it's moving: The catalyst is a signed Letter of Intent (LOI) for a business combination with Sports One, a deal that would pivot the company into professional sports franchise ownership — with reported ties to NFL and NBA stakes. An LOI is a preliminary, non-binding agreement, meaning the deal is far from closed; both sides still need to negotiate and execute a definitive agreement. Sono Group also filed an SEC Form 425 (used in business-combination disclosures) and an 8-K agreement filing on August 31, giving the news regulatory paper trail. A separate headline notes the company is also selling 283,500 shares at the Nasdaq bid price, a bearish dilution signal worth noting alongside the excitement.

The prior-day technical setup is extremely weak. Sono Group shows a bearish MA stack, RSI of 42, a flat ADX of only 6 (essentially no directional trend), a trend-template score not reported, and a conviction score of 0/100 — grade D. The stock is 81.7% below its 52-week high. This is not a stock that was building a healthy base; it is a distressed micro-cap getting a news pop.

Short data is minimal: just 68,106 shares short and 0.3 days to cover, meaning there's virtually no short squeeze dynamic here. Short-volume of 67% is elevated, suggesting active intraday short sellers — who could add downside pressure if momentum fades. The free float of 71.1% and tiny market cap mean a relatively small number of buyers can move the stock dramatically, but the same is true in reverse. LOI-driven rallies in micro-caps frequently give back most of the gain if a definitive deal isn't announced quickly.

BIAF — bioAffinity Technologies, Inc. (+40.0%)

bioAffinity Technologies is jumping 40.0% to $6.58 on 12.0 million premarket shares, roughly in line with its elevated 20-day average of 9.2 million — this stock has been active recently. With an RSI of 77 and a trend-template score of 6 out of 6, BIAF arrives at this morning with the strongest technical foundation of any name in today's premarket scan.

Why it's moving: Headlines from StocksToTrade and timothysykes.com both cite a VA (Veterans Affairs) deal and lung cancer test momentum as the catalyst. Stock Titan adds that the company is advancing its CyPath® Lung diagnostic for surveillance of lung cancer survivors. A federal contract win, especially with the VA system, represents a major commercial validation for a small-cap healthcare company. The momentum appears to be building on prior sessions of strength.

The prior-day chart tells a notably different story from the other names this morning. BIAF's MA stack is mixed (not fully bearish), RSI sits at 77 (elevated, in overbought territory — meaning the stock has run hard recently), and ADX is a strong 56, indicating a well-established directional trend. StockSetups rates it 62/100 conviction with a grade of B — among the cleanest setups in the scan. The RS rating of 98 means BIAF has outperformed roughly 98% of all stocks in the database over the relevant lookback period.

The squeeze profile is modest (23/100), with only 195,685 shares short and 0.5 days to cover — so this is not a squeeze story. The primary driver is fundamental news reinforced by pre-existing technical strength. One bearish note: an 8-K filed August 14 was flagged as a dilution event, and a shelf registration (S-3) was filed August 27 — both are potential headwinds as they signal the company may issue more shares in the future. An RSI of 77 also means the stock is stretched; pullbacks can be swift even when the underlying news is genuinely positive.

WETO — Wetour Robotics Ltd (+35.5%)

Wetour Robotics is up 35.5% to $7.45 in the premarket on 4.1 million shares — below its 20-day average of 6.7 million, which is notable. The industrial robotics company carries a $121 million market cap and is 83.3% below its 52-week high.

Why it's moving: No catalyst headlines are on file for WETO this morning. The move appears to be technically and momentum-driven rather than news-driven. Given the absence of a confirmed catalyst, traders should exercise extra caution; unconfirmed movers are more likely to reverse once the initial premarket momentum fades.

What the data does show: WETO's prior-day chart features a gap of +25.9% into the prior close's price action, an ADX of 48 (strong directional momentum), and a trend-template score of 6/6 — the highest possible, indicating WETO was meeting all of Stan Minervini's trend-template criteria (price above key moving averages, averages properly stacked, RS making new highs). StockSetups assigns a conviction score of 82/100 and a grade of A, the strongest conviction reading in today's lineup.

The squeeze dynamic here is minimal: squeeze score 25/100, just 6,089 shares short, and 0.0 days to cover. This is not a short-squeeze situation. The float is tight at 25.9% — meaning only about a quarter of total shares are freely tradable in the open market. A low float (few shares available to trade) means supply is constrained, so even moderate buying interest can produce outsized price moves. That same dynamic works in reverse on the downside. Two follow-on offering filings (424B5, typically bearish as they indicate share issuance) in the August 24–26 window are worth noting as a potential dilution overhang.

WETO appeared in the Premarket Stock Movers — August 20, 2026 recap as well, suggesting this is a recurring active name. With no confirmed catalyst today, the A-grade technical setup and tight float are the only identifiable supports — and neither guarantees continuation.

The bottom line

This morning's premarket lineup is dominated by news-driven micro- and small-caps — a celebrity stake disclosure, a lunar lidar contract, a sports-business LOI, a federal healthcare deal, and one no-catalyst mover with a strong technical grade. Each has produced a headline-grabbing percentage gain before a single regular-session trade has printed.

The risks here are real and worth naming plainly. Premarket prices are set on thinner volume than regular trading hours, meaning spreads are wider and prices can shift dramatically at the 9:30 ET open. Stocks that gap up 35%–73% in the premarket frequently give back a significant portion of that gain during the session — sometimes within the first 30 minutes. LOIs are not closed deals. Celebrity endorsements are not earnings. Federal contract advances are not revenue. And a strong technical grade without a confirmed catalyst (WETO) is a setup, not a guarantee.

Manage your risk on every trade: know your entry, know your stop, and size your position accordingly. None of this is financial advice or a recommendation to buy or sell any security.

StockSetups scans the full ~12,300-stock US universe every premarket morning — flagging the biggest movers, detecting chart patterns confirmed by candlestick signals, and computing conviction, squeeze, and smart-money scores so you can focus your research where the action is. Check back after today's close for the full after-hours recap.