Premarket Movers Sept 24, 2026: APUS, SRZN, PFSA

APUS — Apimeds Pharmaceuticals US (+190.3%)

Apimeds Pharmaceuticals US is up a staggering 190.3% in premarket trading, changing hands at $6.59 on 20,810,432 shares — more than 128 times its 20-day average volume of 162,279. That kind of volume dislocation in a name with a $3.4 million market cap demands immediate context.

Why it's moving: The company completed a 1-for-10 reverse stock split effective September 23, 2026, as confirmed by an 8-K filed with the SEC that same day and widely reported across financial news outlets. In a reverse split, a company consolidates existing shares — here, every 10 shares become 1 — which mechanically multiplies the share price by 10. That accounting move is the primary driver of the headline percentage gain; it is not a fundamental improvement in the business.

It's important to understand what a reverse split is and isn't: it does not change the total value of a shareholder's position (10 shares at $0.65 become 1 share at $6.50, all else equal), and companies often execute them to avoid exchange delisting rules tied to minimum share prices. With APUS sitting 93.5% below its 52-week high, a conviction score of just 4/100, a D technical grade, and an RSI of only 38, the prior-day chart shows a deeply beaten-down stock with no bullish trend structure. The MA stack remains bearish, and the ADX of 18 signals a weak trend environment.

Short interest is negligible (19,919 shares, 0.1 days to cover), so a squeeze is not in play here. The three-outside-up candle pattern on the prior daily chart could suggest a short-term reversal attempt, but given the reverse-split context, extreme caution is warranted. Reverse-split stocks frequently see sharp post-split volatility that fades quickly.

SRZN — Surrozen, Inc. (+78.8%)

Surrozen is surging 78.8% to $29.00 premarket on volume of 2,608,457 shares — roughly 14 times its 20-day average of 185,337. This is a $190.6 million market-cap biotech with a very different story from APUS.

Why it's moving: No specific catalyst headline is on file ahead of the open. With no confirmed news, the move appears to be technically and squeeze-driven. Surrozen carries a squeeze score of 81/100 — one of the most compelling short-squeeze setups in this morning's scan. To understand why that matters: a short squeeze happens when traders who have bet against a stock (short sellers) are forced to buy shares to cover their losing positions, which in turn pushes the price higher and forces even more covering — a self-reinforcing cycle.

The data supports squeeze dynamics here. Short interest stands at 1,445,491 shares with 7.7 days to cover — meaning at average volume, it would take short sellers more than a week to fully unwind their positions. Short volume is 65% of recent activity. The free float (the portion of shares actually available to trade) is just 47.9%, which tightens supply and amplifies price moves when demand spikes. The largest disclosed stake is 9.9%, further concentrating the available float.

The prior-day chart shows a stock well off its 52-week high (down 52.5%) with a bearish MA stack, an RSI of 27 (deeply oversold), and an ADX of 31 (a meaningful trend in force — in this case, a downtrend). An oversold, heavily shorted, low-float stock with no lane signal is a classic setup for a violent snap-back. The smart-money score is 24/100, and the prior gap was a modest -1.0%. Traders should note that the most intense squeeze moves can reverse just as fast once covering pressure exhausts itself.

PFSA — Profusa, Inc. (+71.2%)

Profusa is jumping 71.2% to $3.51 in premarket trading on 38,670,116 shares — nearly 64 times its 20-day average of 600,377. The company has a market cap of just $1.2 million, making it one of the most micro-cap names on this morning's board. A short-sale restriction (SSR) is already active, meaning regulators have restricted certain types of short-selling after yesterday's decline — a rule that kicks in when a stock falls more than 10% from the prior close.

Why it's moving: No specific catalyst headline accompanies the move this morning. The stock filed multiple 8-Ks over recent weeks — covering an agreement (September 16), another agreement (September 1), a vote (September 21), and notably a delisting-related 8-K on August 31 — but none of these filings have a confirmed bullish trigger tied to today's move. With no clear catalyst, this looks like a momentum and volume-driven surge in a thinly traded micro-cap.

The technical picture from yesterday's close is telling: PFSA sits 99.6% below its 52-week high — essentially a stock that has lost nearly all of its value over the past year. The MA stack is bearish, RSI is 46 (neutral), and the ADX of 35 suggests a trending environment. An inverted hammer candlestick on the prior daily chart hints at a potential reversal attempt, but in this context it's a fragile signal. A 13D/G filing indicates a disclosed activist or large-stake holder (the largest stake is 49.9%), and HRT Financial LP made a series of small insider purchases between August and September, though those buys were modest in dollar terms. The conviction score is 24/100 and the grade is D.

With essentially zero days to cover (short interest is only 39,618 shares), a squeeze is not the story. This is a lottery-ticket-style move in an ultra-micro-cap with serious fundamental headwinds. The active SSR does limit some short-side pressure intraday, but that's a double-edged dynamic in a name this small.

WETO — Wetour Robotics Ltd (+35.4%)

Wetour Robotics is up 35.4% to $1.99 premarket on 14,937,292 shares — about 2.2 times its already-elevated 20-day average of 6,842,356. The $120.5 million market-cap robotics company, which files as a foreign private issuer (6-K filings), is one of the more liquid names on this morning's list and has a short-sale restriction (SSR) active.

Why it's moving: A Benzinga report dated September 24 — this morning — notes that WETO stock "rallies over 59% after hours" and is trending, though the specific catalyst cited in that headline is not detailed in the data on file. That after-hours surge is what is rolling into today's premarket reading of +35.4% versus the prior close. Traders should note that the after-hours and premarket percentage figures may differ as prices continue to move before the open.

The prior-day chart reveals a stock with almost no technical support: WETO is 99.1% below its 52-week high, has a conviction score of 0/100, a D grade, a bearish MA stack, an RSI of 35, and an ADX of just 10 (a directionless, range-bound environment). The trend-template score is 0 — the weakest possible reading. The free float is 25.9%, and short interest is negligible (35,047 shares, 0.0 days to cover), so squeeze dynamics are not a meaningful factor. An August 424B5 filing — a follow-on share offering — is a bearish structural signal, as it dilutes existing shareholders.

This is a highly speculative, momentum-driven move in a name that has shed nearly all of its value over the past year. Without a confirmed fundamental catalyst, the move is difficult to evaluate with conviction.

NCPL — Netcapital Inc. (+35.2%)

Netcapital is rising 35.2% to $1.46 premarket on 10,205,385 shares. Interestingly, that volume is actually below its 20-day average of 31,686,655 — meaning this is a name that routinely sees heavy retail activity, and today's premarket move is happening on comparatively lighter participation. The $8.5 million market-cap fintech is the only name on this morning's list with a meaningful positive technical profile.

Why it's moving: No catalyst headline is on file for this morning's move. The stock appeared in a light Reddit mention on r/pennystocks (rank #124, 1 mention), and recent SEC filings include two management-related 8-Ks and a delisting-related 8-K from August 28 — a lingering risk worth noting. With no confirmed news, the move reads as technically and momentum-driven.

What separates NCPL from the other names this morning is its technical rank of 99/100 — placing it in the top 1% of all stocks StockSetups scans for technical setup quality — along with an RS rating of 94 (strong relative strength versus the broader market), a conviction score of 53/100, a grade of C, and a trend-template score of 4. The prior-day chart shows a mixed MA stack, an RSI of 71 (approaching overbought territory), an ADX of 39 (a strong trend in force), and a prior-day gap up of 8.3%. This is the only stock in today's premarket lineup showing genuine momentum and trend characteristics rather than a distressed bounce.

The squeeze score is 43/100 with 1,651,407 shares short and 0.0 days to cover, so a mechanical squeeze isn't the primary driver. Still, with above-average short volume (45%) and a rising RSI, any continuation catalyst could bring in fast-money buyers quickly. The delisting 8-K from August remains an overhang, and the stock is 57.5% below its 52-week high — so the broader trend is still one of recovery from a significant drawdown.

The bottom line

This morning's biggest premarket gainers span a wide range of dynamics: a reverse-split accounting move (APUS), a high-conviction short squeeze in a heavily shorted biotech (SRZN), a momentum surge in an ultra-micro-cap (PFSA), an after-hours catalyst rollover in a foreign robotics name (WETO), and technically-driven strength in a fintech with genuine momentum (NCPL).

A few honest reminders before the open:

• Reverse-split stocks (APUS) can look explosive in percentage terms but the move is largely mechanical — the underlying business hasn't changed.
• Short squeezes (SRZN) can be violent and fast in both directions; once covering pressure exhausts itself, the reversal can be just as sharp.
• Micro- and nano-cap names (PFSA, WETO) with no confirmed catalyst and bearish fundamental signals carry extreme risk of rapid reversals once early buyers take profits.
• Chasing stocks that are already up 35–190% before the open is high-risk. Premarket prices are set on thin volume and often do not hold after the 9:30 AM ET open.
• Nothing here is a buy recommendation. These are educational observations for traders doing their own research.

StockSetups scans the full ~12,300-stock US universe every premarket morning — flagging unusual volume, short-squeeze setups, pattern confirmations, and smart-money signals before the open. For yesterday's after-close recap, see Top Stock Movers Sept 23, 2026: BENF, WHLR, VSA. To learn how gap moves like these play out in the regular session, the Gap-and-Go Setup guide and the VWAP Fade Setup are worth reading before the open. Manage your risk, size accordingly, and do your own research.