Wednesday's pre-market session: top gainers and losers
By Mill Chart
Last update: Aug 20, 2025
Before the US market kicks off on Wednesday, let's examine the pre-market session and unveil the notable performers among the top gainers and losers.
Pre-market gainers
| Ticker | Change | Comment |
|---|---|---|
| NBY | 73.35% | Investors witnessed a remarkable surge in NOVABAY PHARMACEUTICALS INC (NYSEARCA:NBY) during Wednesday's pre-market session, with the stock price rising 73.35% to $1.04. |
| SISI | 49.09% | SHINECO INC (NASDAQ:SISI) experienced an impressive 49.09% increase in share price, reaching $7.38 during the pre-market session on Wednesday. In the last month the share price dropped with 40.86%. |
| STAI | 30.09% | Exciting news for SCANTECH AI SYSTEMS INC (NASDAQ:STAI) as their shares soared 30.09% to $0.61 during the pre-market session on Wednesday. A press release (ScanTech AI Strengthens Service Capabilities by Selecting Curie Technologies) was released yesterday. |
| AUUD | 26.94% | During Wednesday's pre-market trading, AUDDIA INC (NASDAQ:AUUD) demonstrated strong momentum, with the stock price rising 26.94% to $2.78. The stock is trading 48.35% lower than a month ago. |
| RCKT | 24.74% | ROCKET PHARMACEUTICALS INC (NASDAQ:RCKT) rose 24.74% to $3.63 during Wednesday's pre-market session. In the last 3 months the stock lost 53.59%. |
| BEEM | 15.73% | During Wednesday's pre-market session, BEAM GLOBAL (NASDAQ:BEEM) exhibited strong growth, with the stock price climbing 15.73% to $2.87. In the last 3 months the stock gained 49.4%. |
| AHL | 14.39% | Pre-market trading on Wednesday showed positive momentum for ASPEN INSURANCE HOLDINGS-A (NYSE:AHL), as the stock price advanced 14.39% to reach $31.64. Shareholders saw the stock price going 20.95% lower in the past 3 months. |
| GLE | 14.27% | GLOBAL ENGINE GROUP HOLDIN-A (NASDAQ:GLE) rose 14.27% to $0.81 during Wednesday's pre-market session. In the last month the stock lost 79.95%. |
| AMP.V | 11.15% | During Wednesday's pre-market session, (NYSE:AMP.V) experienced a 11.15% increase, with the stock price reaching $1.75. The stock is trading 28.64% lower than a month ago. |
| MIMI | 9.84% | MINT INCORPORATION LTD-A (NASDAQ:MIMI) recorded a 9.84% increase in share price during the pre-market session, reaching $8.15 on Wednesday. Shareholders saw the stock price going 43.8% higher in the past 3 months. |
For the full premarket gainers list go to our premarket gainers page.
Today's pre-market losers
| Ticker | Change | Comment |
|---|---|---|
| NVNO | -72.32% | The stock price of ENVVENO MEDICAL CORP (NASDAQ:NVNO) is declining by 72.32%, reaching $1.16 during Wednesday's pre-market session. The challenges persist for NVNO as it registered a -16.12% drop during the regular session yesterday, and this trend continued with another decline of 72.32% in today's pre-market session. A press release (enVVeno Receives Not-Approvable Letter from the FDA for the VenoValve(R)) was released earlier today. |
| BSLKW | -31.7% | Despite yesterday's decline, GOLDEN ARROW MERGER A -CW26 (NASDAQ:BSLKW) experienced a further 31.7% decrease in share price during Wednesday's pre-market session, reaching $0.04. In the last month the share price increased with 58.21%. |
| ADD | -29.49% | The stock price of COLOR STAR TECHNOLOGY CO-A (NASDAQ:ADD) is declining by 29.49%, reaching $0.09 during Wednesday's pre-market session. Prices are quite volatile now: this is a reversal from yesterday's 39.13% gain. |
| JHX | -27.19% | Investors observed a 27.19% decline in JAMES HARDIE IND PLC's (NYSE:JHX) stock price, which now stands at $20.7 during Wednesday's pre-market session. A press release (James Hardie Reports First Quarter FY26 Results; Issues FY26 Guidance Reflecting Closing of AZEK Acquisition) was released yesterday. |
| PRFX | -24.47% | PAINREFORM LTD's (NASDAQ:PRFX) stock price recorded a 24.47% decrease, falling to $1.79. After experiencing a 76.87% increase in yesterday's session, PRFX is showing a reversal in today's pre-market session with a 24.47% decrease. |
| LZB | -21.89% | LA-Z-BOY INC's (NYSE:LZB) shares fell 21.89% to $30.55. |
| CTSO | -21.3% | During Wednesday's pre-market session, the shares of CYTOSORBENTS CORP (NASDAQ:CTSO) declined by 21.3%, reaching $0.85. In the last 3 months the stock gained 27.81%. |
| SUGP | -20.72% | Despite yesterday's decline, SU GROUP HOLDINGS LTD (NASDAQ:SUGP) experienced a further 20.72% decrease in share price during Wednesday's pre-market session, reaching $0.46. Shareholders saw the stock price going 28.63% lower in the past month. |
| GXAI | -16.99% | Despite yesterday's decline, GAXOS.AI INC (NASDAQ:GXAI) experienced a further 16.99% decrease in share price during Wednesday's pre-market session, reaching $1.71. After yesterdays gain of 87.27%, it goes down with 16.99% in today's pre-market session. |
| TBH | -15.52% | During Wednesday's pre-market session, the shares of BRAG HOUSE HOLDINGS INC (NASDAQ:TBH) declined by 15.52%, reaching $1.0. Shareholders saw the stock price going 46.22% higher in the past month. |
For the full premarket loser list go to our premarket losers page.
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