Get insights into the top gainers and losers of Tuesday's after-hours session.
By Mill Chart
Last update: Aug 12, 2025
As the regular session of the US market concludes on Tuesday, let's get an insight into the after-hours session and identify the stocks leading the pack in terms of gains and losses.
Gainers
| Ticker | Change | Comment |
|---|---|---|
| WBTN | 38.14% | WEBTOON ENTERTAINMENT INC's (NASDAQ:WBTN) shares rose 38.14% to $12.93. WEBTOON ENTERTAINMENT INC released earnings Yesterday. Earlier today the company had a press release: WEBTOON Entertainment Inc. Reports Second Quarter 2025 Financial Results. |
| BSLK | 26.61% | Notable gains for BOLT PROJECTS HOLDINGS INC (NASDAQ:BSLK) in the after-hours session, with a 26.61% rise to $2.76 during Tuesday. Earlier today the company had a press release: Bolt Projects Holdings Reports Q2 2025 Financial Results. |
| GBIO | 25.19% | GENERATION BIO CO's (NASDAQ:GBIO) stock price is advancing with 25.19% to a price of $5.07. A press release (Generation Bio Announces New Data for Its Novel ctLNP Delivery System and Early T Cell Programs and Reports Second Quarter 2025 Financial Results) was released earlier today. |
| INTA | 24.32% | Notable gains for INTAPP INC (NASDAQ:INTA) in the after-hours session, with a 24.32% rise to $45.9 during Tuesday. INTAPP INC released earnings Yesterday. A press release (Intapp announces fourth quarter and fiscal year 2025 financial results) was released earlier today. |
| CGTX | 21.82% | COGNITION THERAPEUTICS INC's (NASDAQ:CGTX) shares rose 21.82% to $1.34 during Tuesday's after hours session. Building upon today's 28.1% gain, CGTX demonstrates resilience and ongoing growth in the after-hours session. yesterday the company released their earnings. A press release (Cognition Therapeutics Receives End-of-Phase 2 Meeting Minutes Confirming Alignment with U.S. FDA on Registrational Path for Zervimesine (CT1812) in Alzheimer’s Disease) was released earlier today. |
| ECG | 18.01% | EVERUS CONSTRUCTION GROUP (NYSE:ECG) showcases remarkable after-hours performance, with a 18.01% rise to $89.45 during Tuesday's after-hours trading. EVERUS CONSTRUCTION GROUP released earnings Yesterday. A press release (Everus Reports Second Quarter Results, Raises Guidance for 2025) was released earlier today. |
| SMWB | 9.72% | After the regular session, SIMILARWEB LTD (NYSE:SMWB) continues to impress in the after-hours session, with a 9.72% increase to $7.79. SIMILARWEB LTD released earnings Yesterday. Earlier today the company had a press release: Similarweb Announces Second Quarter 2025 Results. |
| NIVF | 9.69% | NEWGENIVF GROUP LTD-A's (NASDAQ:NIVF) stock price is advancing with 9.69% to a price of $2.15. In the last month the share price dropped with 33.31%. |
| AZTA | 9.55% | AZENTA INC (NASDAQ:AZTA) exhibits strong performance after hours, with shares rising 9.55% to $32.0 during Tuesday's after-hours session. In the last 6 months the share price dropped with 35.68%. |
| ATNFW | 7.98% | KBL MERGER CORP IV - CW23's (NASDAQ:ATNFW) stock price increased by 7.98% to $0.12. The strong performance observed in the regular session, where ATNFW registered a 834.0% gain, continues to drive positive movement in the after-hours session. |
Our after hours gainers page will show you the full list.
Today's after hours losers
| Ticker | Change | Comment |
|---|---|---|
| CAVA | -21.66% | Following a %ABSPERF% loss in the regular session, CAVA GROUP INC (NYSE:CAVA) exhibits further decline during today's after-hours session. yesterday the company released their earnings. A press release (CAVA Group Reports Second Quarter 2025 Results) was released earlier today. |
| LAZR | -19.27% | The after-hours session reflects LUMINAR TECHNOLOGIES INC (NASDAQ:LAZR)'s ongoing correction after experiencing a 11.9% loss in the regular trading hours. After a notable 11.9% increase earlier today, LAZR shows signs of a pullback during the after-hours session. The company's earnings where released Yesterday. Earlier today the company had a press release: Luminar Reports Q2’25 Financials. |
| DERM | -15.46% | After today's %ABSPERF% drop, JOURNEY MEDICAL CORP (NASDAQ:DERM) shows further decline during today's after-hours session with a 15.46% decrease. JOURNEY MEDICAL CORP released earnings Yesterday. Shareholders saw the stock price going 22.35% higher in the past month. |
| PETS | -15.34% | The after-hours session reflects PETMED EXPRESS INC (NASDAQ:PETS)'s ongoing correction after experiencing a %ABSPERF% loss in the regular trading hours. PETMED EXPRESS INC released earnings today. Shareholders saw the stock price going 26.35% lower is the past 6 months. |
| XAIR | -12.97% | BEYOND AIR INC's (NASDAQ:XAIR) shares fell 12.97% to $2.75. BEYOND AIR INC released earnings Yesterday. The stock is trading 59.38% lower than 6 months ago. |
| PRTS | -12.97% | CARPARTS.COM INC's (NASDAQ:PRTS) stock price is declining with 12.97% to a price of $0.8. CARPARTS.COM INC released earnings Yesterday. |
| SPRO | -10.98% | Following a %ABSPERF% loss in the regular session, SPERO THERAPEUTICS INC (NASDAQ:SPRO) exhibits further decline during today's after-hours session. yesterday the company released their earnings. Shareholders saw the stock price going 263.0% higher in the past 3 months. |
| SMTK | -10.73% | SMARTKEM INC's (NASDAQ:SMTK) shares fell 10.73% to $0.73 during Tuesday's after hours session. In the last 3 months the share price dropped with 24.07%. |
| DNN | -10.19% | Price volatility persists as DENISON MINES CORP (NYSEARCA:DNN) closed the regular session with a %ABSPERF% loss, and the downward trend continues in the after-hours session. The stock is trading 51.05% higher than 3 months ago. |
| HLP | -9.88% | Today's after-hours session sees a continuation of the %ABSPERF% decrease earlier in the day for HONGLI GROUP INC (NASDAQ:HLP). Shareholders saw the stock price going 54.3% lower in the past 3 months. |
For the full after hours loser list go to our after hours losers page.
2.16
+0.04 (+1.89%)
3.13
+0.1 (+3.3%)
0.9191
+0.03 (+3.27%)
2.36
+0.16 (+7.27%)
8.54
+0.67 (+8.51%)
3.16
0 (0%)
4.05
+0.01 (+0.25%)
0.1065
+0.1 (+834.21%)
3.01
+0.32 (+11.9%)
7.1
+0.23 (+3.35%)
36.92
+1.28 (+3.59%)
1.1
+0.24 (+28.1%)
29.21
+1.23 (+4.4%)
0.69
+0.03 (+5.26%)
84.5
+2.2 (+2.67%)
1.96
+0.1 (+5.38%)
0.82
0 (0%)
9.36
+0.22 (+2.41%)
2.18
+0.04 (+1.87%)
75.8
+4.92 (+6.94%)
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