Get insights into the top gainers and losers of Tuesday's after-hours session.
By Mill Chart
Last update: Aug 26, 2025
After the conclusion of the US market's regular session on Tuesday, let's examine the after-hours session and unveil the notable performers among the top gainers and losers.
Today's after hours gainers
| Ticker | Change | Comment |
|---|---|---|
| NBY | 47.78% | Promising after-hours performance observed for NOVABAY PHARMACEUTICALS INC (NYSEARCA:NBY) as its shares surged 47.78% to $1.33 during Tuesday's after-hours trading. The stock is trading 42.41% higher than a month ago. |
| MDB | 23.4% | Positive market activity for MONGODB INC (NASDAQ:MDB) after regular trading hours, with a 23.4% increase to $264.5 in the after-hours session on Tuesday. yesterday the company released their earnings. In the last year the stock lost 26.29%. |
| BTAI | 17.94% | Positive after-hours movement for BIOXCEL THERAPEUTICS INC (NASDAQ:BTAI) as its shares recorded a 17.94% increase, reaching $6.18 during Tuesday's after-hours session. The stock is trading 230.0% higher than a month ago. |
| SLRX | 16.49% | SALARIUS PHARMACEUTICALS INC (NASDAQ:SLRX) rose 16.49% to $6.71 during Tuesday's after hours session. In the last month the stock lost 61.58%. |
| BRO | 12.3% | Notable gains for BROWN & BROWN INC (NYSE:BRO) in the after-hours session, with a 12.3% rise to $107.86 during Tuesday. |
| SIGI | 10.59% | In the after-hours session on Tuesday, SELECTIVE INSURANCE GROUP (NASDAQ:SIGI) experienced a notable 10.59% increase, driving its shares to $86.16. |
| EXLS | 9.36% | EXLSERVICE HOLDINGS INC's (NASDAQ:EXLS) stock price is advancing with 9.36% to a price of $47.66. |
| OLED | 8.59% | Impressive after-hours gains for UNIVERSAL DISPLAY CORP (NASDAQ:OLED) as its stock price advanced 8.59% to $155.88 during Tuesday's after-hours session. The stock is trading 25.9% lower than a year ago. |
| CNI | 8.29% | After the regular session, CANADIAN NATL RAILWAY CO (NYSE:CNI) continues to impress in the after-hours session, with a 8.29% increase to $104.6. |
| SKYT | 8.21% | After the regular session, SKYWATER TECHNOLOGY INC (NASDAQ:SKYT) continues to impress in the after-hours session, with a 8.21% increase to $13.05. In the last 3 months the share price increased with 33.41%. |
For the full after hours gainers list go to our after hours gainers page.
Today's after hours losers
| Ticker | Change | Comment |
|---|---|---|
| FEBO | -18.93% | FENBO HOLDINGS LTD's (NASDAQ:FEBO) stock price is declining with 18.93% to a price of $0.73. Following a 21.62% increase in the regular trading session, FEBO is showing signs of weakness with a 18.93% decline in after-hours trading. |
| ADNWW | -15.73% | Price volatility persists as AMCI ACQUISITION CORP-CW26 (NASDAQ:ADNWW) closed the regular session with a %ABSPERF% loss, and the downward trend continues in the after-hours session. The stock is trading 218.0% higher than a month ago. |
| STC | -15.18% | STEWART INFORMATION SERVICES's (NYSE:STC) stock price is declining with 15.18% to a price of $61.61. In the last 3 months the share price increased with 20.38%. |
| SBCF | -15.18% | After today's %ABSPERF% drop, SEACOAST BANKING CORP/FL (NASDAQ:SBCF) shows further decline during today's after-hours session with a 15.18% decrease. |
| BSY | -11.15% | The after-hours session reflects BENTLEY SYSTEMS INC-CLASS B (NASDAQ:BSY)'s ongoing correction after experiencing a %ABSPERF% loss in the regular trading hours. The stock is trading 22.53% higher than 6 months ago. |
| DEVS | -10.91% | Following a -11.29% loss in the regular session, DEVVSTREAM CORP (NASDAQ:DEVS) exhibits further decline during today's after-hours session. The regular session ended on a negative note with DEVS closing -11.29% lower, and the after-hours session reflects a continuation of the bearish sentiment. |
| WORX | -10.53% | SCWORX CORP's (NASDAQ:WORX) shares fell 10.53% to $0.34 during Tuesday's after hours session. Today's after-hours session indicates a reversal in WORX's earlier 30.67% gain, with prices exhibiting heightened volatility. A press release (SCWorx Expands Healthcare Data Management Network with New Collaboration) was released earlier today. |
| NCEW | -10.33% | NEW CENTURY LOGISTICS BVI LT's (NASDAQ:NCEW) shares fell 10.33% to $0.55 during Tuesday's after hours session. In the last month the share price dropped with 21.16%. |
| IVVD | -9.22% | Price volatility persists as INVIVYD INC (NASDAQ:IVVD) closed the regular session with a 84.03% loss, and the downward trend continues in the after-hours session. After registering a 84.03% gain earlier today, IVVD is experiencing a 9.22% decline in today's after-hours session. |
| AZN | -8.79% | ASTRAZENECA PLC-SPONS ADR's (NASDAQ:AZN) stock price is showing a decline of 8.79% to a price of $73.01 during the after-hours session. |
Our after hours losers page will show you the full list.
81.62
+2.07 (+2.6%)
82.3
+1.1 (+1.35%)
32.57
-0.28 (-0.85%)
73.42
+1.02 (+1.41%)
89.83
-0.46 (-0.51%)
2.8
-0.01 (-0.36%)
41.64
+0.12 (+0.29%)
97.89
-0.07 (-0.07%)
118.18
-2.67 (-2.21%)
419
-1.39 (-0.33%)
2.01
-0.06 (-2.9%)
0.2013
-0.02 (-7.24%)
0.78
-0.03 (-3.68%)
40.58
-0.53 (-1.29%)
0.0029
-0.01 (-73.15%)
17.56
-2.66 (-13.16%)
2.32
-0.06 (-2.52%)
0.86
-0.03 (-3.37%)
1.68
-0.03 (-1.75%)
4.86
+0.55 (+12.76%)
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