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Wondering what's happening in today's after-hours session?

By Mill Chart

Last update: Feb 20, 2025

The US market regular session of Thursday is over, let's have a look at the top gainers and losers in the after hours session today.

After hours gainers

TickerChangeComment
MLGO59.13%Positive after-hours movement for MICROALGO INC (NASDAQ:MLGO) as its shares recorded a 59.13% increase, reaching $1.83 during Thursday's after-hours session. Shareholders saw the stock price going 28.13% lower in the past month.
UPC30.32%UNIVERSE PHARMACEUTICALS INC (NASDAQ:UPC) exhibits strong performance after hours, with shares rising 30.32% to $0.19 during Thursday's after-hours session. Shareholders saw the stock price going 70.95% lower in the past month.
CELH18.76%After the regular session, CELSIUS HOLDINGS INC (NASDAQ:CELH) continues to impress in the after-hours session, with a 18.76% increase to $30.32. A press release (Celsius Holdings to Acquire Alani Nu®, Creating a Leading Better-For-You, Functional Lifestyle Platform) was released earlier today.
GDYN17.68%Positive market activity for GRID DYNAMICS HOLDINGS INC (NASDAQ:GDYN) after regular trading hours, with a 17.68% increase to $24.1 in the after-hours session on Thursday. yesterday the company released their earnings. A press release (Grid Dynamics Reports Fourth Quarter and Full Year 2024 Financial Results) was released earlier today.
HOLO16.81%MICROCLOUD HOLOGRAM INC's (NASDAQ:HOLO) shares rose 16.81% to $1.39 during Thursday's after hours session. In the last month the share price dropped with 28.31%.
GRAL13.69%After the closing bell, GRAIL INC (NASDAQ:GRAL) demonstrated strong momentum in the after-hours session, with a 13.69% rise to $54.3. GRAIL INC released earnings Yesterday. The stock is trading 111.0% higher than a month ago.
MELI12.8%Promising after-hours performance observed for MERCADOLIBRE INC (NASDAQ:MELI) as its shares surged 12.8% to $2.38K during Thursday's after-hours trading. yesterday the company released their earnings. In the last year the stock gained 29.53%.
FND11.99%In the after-hours session on Thursday, FLOOR & DECOR HOLDINGS INC-A (NYSE:FND) experienced a notable 11.99% increase, driving its shares to $103.97. The company's earnings where released Yesterday. Shareholders saw the stock price going 20.72% lower is the past year.
SLRN11.98%Notable gains for ACELYRIN INC (NASDAQ:SLRN) in the after-hours session, with a 11.98% rise to $2.43 during Thursday. In the last 3 months the stock lost 53.83%.
BJRI11.14%BJ'S RESTAURANTS INC's (NASDAQ:BJRI) shares rose 11.14% to $39.72. The company's earnings where released Yesterday.

To see the full list of after hours gainers you can use our after hours gainers page.

Today's after hours losers

TickerChangeComment
MGOL-17.35%MGO GLOBAL INC's (NASDAQ:MGOL) stock price decreased by 17.35% to $0.31. The after-hours session reflects NASDAQ:MGOL's ongoing correction after a -20.43% loss in the regular trading hours.
GKOS-14.84%Today's after-hours session sees a continuation of the %ABSPERF% decrease earlier in the day for NYSE:GKOS. The company's earnings where released Yesterday. A press release (Glaukos Announces Fourth Quarter and Full Year 2024 Financial Results) was released earlier today.
SEM-13.08%The after-hours session reflects NYSE:SEM's ongoing correction after experiencing a %ABSPERF% loss in the regular trading hours. SELECT MEDICAL HOLDINGS CORP released earnings Yesterday. In the last 3 months the stock lost 51.95%.
SOAR-12.7%After today's 49.25% drop, NYSEARCA:SOAR shows further decline during today's after-hours session with a 12.7% decrease. Despite a significant 49.25% gain earlier today, NYSEARCA:SOAR faces a reversal and declines in the after-hours session. A press release (Vaunt Surpasses $1.5M ARR in First Year, 100,000 Downloads, and 590 Flights—Fueling Unforgettable Travel Experiences) was released earlier today.
AXTI-11.79%The after-hours session reflects NASDAQ:AXTI's ongoing correction after experiencing a %ABSPERF% loss in the regular trading hours. AXT INC released earnings Yesterday. A press release (AXT, Inc. Announces Fourth Quarter and Fiscal Year 2024 Financial Results) was released earlier today.
ACCO-11.23%After today's %ABSPERF% drop, NYSE:ACCO shows further decline during today's after-hours session with a 11.23% decrease. ACCO BRANDS CORP released earnings Yesterday. Earlier today the company had a press release: ACCO Brands Reports Fourth Quarter and Full Year Results and Provides Outlook for 2025.
WEAV-10.66%WEAVE COMMUNICATIONS INC's (NYSE:WEAV) shares fell 10.66% to $15.09. WEAVE COMMUNICATIONS INC released earnings Yesterday. Earlier today the company had a press release: Weave Announces Fourth Quarter and Full Year 2024 Financial Results.
GLOB-10.11%GLOBANT SA's (NYSE:GLOB) shares declined by 10.11% to $188.91 during Thursday's after-hours session.
WOK-9.7%WORK MEDICAL TECHNOLOGY GROU's (NASDAQ:WOK) stock price decreased by 9.7% to $1.21. It looks like the bad days are not over yet: NASDAQ:WOK also declined by -46.18% during the regular session.
MNDR-9.55%MOBILE-HEALTH NETWORK SOLUTI's (NASDAQ:MNDR) stock price is declining with 9.55% to a price of $0.85. Price volatility intensifies as NASDAQ:MNDR retraces its 185.0% gain during the after-hours session.

To see the full list of after hours losers you can use our after hours losers page.

MERCADOLIBRE INC

NASDAQ:MELI (5/20/2025, 3:07:24 PM)

2560.77

-17.58 (-0.68%)


BJ'S RESTAURANTS INC

NASDAQ:BJRI (5/20/2025, 3:06:09 PM)

42.29

-0.53 (-1.24%)


AXT INC

NASDAQ:AXTI (5/20/2025, 3:07:24 PM)

1.43

-0.01 (-0.69%)


SELECT MEDICAL HOLDINGS CORP

NYSE:SEM (5/20/2025, 3:07:40 PM)

15.14

-0.06 (-0.39%)


ACCO BRANDS CORP

NYSE:ACCO (5/20/2025, 3:08:01 PM)

3.785

0 (-0.13%)


GLOBANT SA

NYSE:GLOB (5/20/2025, 3:07:46 PM)

105.15

-0.31 (-0.29%)


GLAUKOS CORP

NYSE:GKOS (5/20/2025, 3:07:14 PM)

97.12

+1.27 (+1.32%)


GRID DYNAMICS HOLDINGS INC

NASDAQ:GDYN (5/20/2025, 3:07:55 PM)

13.78

-0.29 (-2.06%)


UNIVERSE PHARMACEUTICALS INC

NASDAQ:UPC (5/20/2025, 2:59:50 PM)

5.92

-0.37 (-5.88%)


WEAVE COMMUNICATIONS INC

NYSE:WEAV (5/20/2025, 3:08:00 PM)

10.36

-0.11 (-1.05%)


FLOOR & DECOR HOLDINGS INC-A

NYSE:FND (5/20/2025, 3:08:01 PM)

78.81

-0.35 (-0.44%)


CELSIUS HOLDINGS INC

NASDAQ:CELH (5/20/2025, 3:07:55 PM)

38.2

+0.7 (+1.87%)


MICROCLOUD HOLOGRAM INC

NASDAQ:HOLO (5/20/2025, 3:08:03 PM)

6.46

-0.43 (-6.24%)


MICROALGO INC

NASDAQ:MLGO (5/20/2025, 3:08:04 PM)

1.2297

-0.11 (-8.23%)


MGO GLOBAL INC

NASDAQ:MGOL (2/19/2025, 8:10:52 PM)

After market: 0.3058 -0.06 (-17.35%)

0.37

-0.1 (-20.43%)


ACELYRIN INC

NASDAQ:SLRN (5/20/2025, 3:08:01 PM)

2.25

+0.02 (+0.9%)


VOLATO GROUP INC

NYSEARCA:SOAR (5/20/2025, 3:06:33 PM)

2.25

-0.06 (-2.6%)


MOBILE-HEALTH NETWORK SOLUTI

NASDAQ:MNDR (5/20/2025, 2:59:31 PM)

1.37

+0.03 (+2.24%)


GRAIL INC

NASDAQ:GRAL (5/20/2025, 3:08:06 PM)

38.635

+0.41 (+1.06%)


WORK MEDICAL TECHNOLOGY GR-A

NASDAQ:WOK (5/20/2025, 3:02:19 PM)

0.5

0 (0%)



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