Monday's after hours session: top gainers and losers
By Mill Chart
Last update: Sep 15, 2025
Wondering what's happening in today's after-hours session? Stay tuned for the latest updates on stock movements.
Gainers
| Ticker | Change | Comment |
|---|---|---|
| WBTN | 71.66% | After the regular session, WEBTOON ENTERTAINMENT INC (NASDAQ:WBTN) continues to impress in the after-hours session, with a 71.66% increase to $25.68. A press release (Disney and WEBTOON Entertainment Broaden Relationship to Create New Digital Comics Platform) was released earlier today. |
| CHEK | 28.3% | Positive after-hours movement for CHECK CAP LTD (NASDAQ:CHEK) as its shares recorded a 28.3% increase, reaching $2.72 during Monday's after-hours session. Also in the regular session CHEK had a very good day: shares closed with a 184.0% gain. |
| BSLKW | 26.61% | GOLDEN ARROW MERGER A -CW26 (NASDAQ:BSLKW) showcases remarkable after-hours performance, with a 26.61% rise to $0.05 during Monday's after-hours trading. In the last month the share price dropped with 38.0%. |
| ORN | 26.26% | Positive market activity for ORION GROUP HOLDINGS INC (NYSE:ORN) after regular trading hours, with a 26.26% increase to $9.52 in the after-hours session on Monday. A press release (Orion Group Holdings Announces Over $120 Million in Contract Wins) was released earlier today. |
| BSLK | 26.01% | BOLT PROJECTS HOLDINGS INC (NASDAQ:BSLK) exhibits strong performance after hours, with shares rising 26.01% to $4.7 during Monday's after-hours session. In the last month the stock lost 57.57%. |
| RVLV | 25.94% | REVOLVE GROUP INC's (NYSE:RVLV) stock price increased by 25.94% to $30.0. |
| ZONE | 19.41% | CLEANCORE SOLUTIONS INC-CL B's (NYSEARCA:ZONE) stock price increased by 19.41% to $3.2. After experiencing a -29.47% decline earlier today, ZONE shows signs of a rebound in today's after-hours session. |
| HITI | 10.87% | Impressive after-hours gains for HIGH TIDE INC (NASDAQ:HITI) as its stock price advanced 10.87% to $4.08 during Monday's after-hours session. HIGH TIDE INC released earnings Yesterday. The stock is trading 38.35% higher than a month ago. |
| NUKK | 9.9% | NUKKLEUS INC's (NASDAQ:NUKK) stock price increased by 9.9% to $5.66. After a notable 13.94% gain earlier today, NUKK maintains its positive momentum during the after-hours session. |
| MIRA | 9.42% | After the closing bell, MIRA PHARMACEUTICALS INC (NASDAQ:MIRA) demonstrated strong momentum in the after-hours session, with a 9.42% rise to $1.51. In the last year the share price increased with 23.21%. |
Our after hours gainers page will show you the full list.
After hours losers
| Ticker | Change | Comment |
|---|---|---|
| ASO | -33.17% | ACADEMY SPORTS & OUTDOORS IN's (NASDAQ:ASO) shares declined by 33.17% to $31.05 during Monday's after-hours session. The stock is trading 23.0% lower than a year ago. |
| MTVA | -16.0% | After today's 116.0% drop, METAVIA INC (NASDAQ:MTVA) shows further decline during today's after-hours session with a 16.0% decrease. Despite a strong 116.0% gain earlier today, MTVA is experiencing a reversal in after-hours trading, with prices declining by 16.0%. |
| ATCH | -13.59% | Price volatility persists as ATLASCLEAR HOLDINGS INC (NYSEARCA:ATCH) closed the regular session with a 154.0% loss, and the downward trend continues in the after-hours session. Despite a strong 154.0% gain earlier today, ATCH is experiencing a reversal in after-hours trading, with prices declining by 13.59%. |
| PLAY | -13.39% | DAVE & BUSTER'S ENTERTAINMEN's (NASDAQ:PLAY) stock price decreased by 13.39% to $20.95. In the last 3 months the stock lost 26.18%. |
| NUWE | -11.67% | Following a 12.44% loss in the regular session, NUWELLIS INC (NASDAQ:NUWE) exhibits further decline during today's after-hours session. Today's after-hours session indicates a reversal in NUWE's earlier 12.44% gain, with prices exhibiting heightened volatility. |
| OPTT | -10.19% | OCEAN POWER TECHNOLOGIES INC's (NYSEARCA:OPTT) shares fell 10.19% to $0.49 during Monday's after hours session. OCEAN POWER TECHNOLOGIES INC released earnings Yesterday. In the last year the stock gained 204.0%. |
| MSN | -8.79% | Price volatility persists as EMERSON RADIO CORP (NYSEARCA:MSN) closed the regular session with a 13.89% loss, and the downward trend continues in the after-hours session. The positive momentum earlier in the day is waning as MSN retraces 13.89% during the after-hours session. |
| BIAF | -8.57% | BIOAFFINITY TECHNOLOGIES INC's (NASDAQ:BIAF) shares fell 8.57% to $0.32 during Monday's after hours session. After registering a 29.63% gain earlier today, BIAF is experiencing a 8.57% decline in today's after-hours session. |
| CIIT | -7.87% | Price volatility persists as TIANCI INTERNATIONAL INC (NASDAQ:CIIT) closed the regular session with a %ABSPERF% loss, and the downward trend continues in the after-hours session. In the last 3 months the share price dropped with 60.09%. |
| EVTV | -7.66% | Today's after-hours session sees a continuation of the -32.84% decrease earlier in the day for ENVIROTECH VEHICLES INC (NASDAQ:EVTV). It looks like the bad days are not over yet: EVTV also declined by -32.84% during the regular session. |
Our after hours losers page will show you the full list.
0.4812
+0.06 (+13.89%)
NYSEARCA:OPTT (9/15/2025, 4:56:03 PM)
After market: 0.4955 -0.05 (-9.84%)0.5496
-0.02 (-4.25%)
7.54
+0.01 (+0.13%)
24.19
+0.55 (+2.33%)
2.12
+1.37 (+184.22%)
23.82
+1.48 (+6.62%)
NASDAQ:ASO (9/15/2025, 4:36:45 PM)
After market: 31.0512 -15.41 (-33.17%)46.46
-0.01 (-0.02%)
4.7
+0.52 (+12.44%)
3.68
+0.25 (+7.29%)
0.3504
+0.08 (+29.78%)
2.74
-1.34 (-32.84%)
1.38
-0.07 (-4.83%)
5.15
+0.63 (+13.94%)
0.99
+0.6 (+153.85%)
2.68
-1.12 (-29.47%)
14.96
+0.72 (+5.06%)
3.73
-0.11 (-2.86%)
0.0372
0 (0%)
1.5
+0.8 (+115.55%)
0.89
+0.05 (+5.45%)
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