Curious about the stocks that are showing activity after the closing bell on Wednesday?

Last update: Aug 13, 2025

As the regular session of the US market concludes on Wednesday, let's get an insight into the after-hours session and identify the stocks leading the pack in terms of gains and losses.

Today's after hours gainers

Ticker	Change	Comment
XPON	53.44%	Notable gains for EXPION360 INC (NASDAQ:XPON) in the after-hours session, with a 53.44% rise to $2.01 during Wednesday. This is a continuation of today's gain of 11.02%. EXPION360 INC released earnings Yesterday. A press release (Expion360 Reports Second Quarter 2025 Financial and Operational Results) was released earlier today.
SNOA	46.89%	After the regular session, SONOMA PHARMACEUTICALS INC (NASDAQ:SNOA) continues to impress in the after-hours session, with a 46.89% increase to $4.48. Earlier today the company had a press release: Sonoma Pharmaceuticals Announces Launch of Diaper Rash Product in Walmart and other U.S. Chains.
FOSL	18.78%	Notable gains for FOSSIL GROUP INC (NASDAQ:FOSL) in the after-hours session, with a 18.78% rise to $2.15 during Wednesday. Earlier today the company had a press release: Fossil Group, Inc. Reports Second Quarter 2025 Financial Results.
DLO	13.86%	After the closing bell, DLOCAL LTD (NASDAQ:DLO) demonstrated strong momentum in the after-hours session, with a 13.86% rise to $13.31. yesterday the company released their earnings. Earlier today the company had a press release: dLocal Reports 2025 Second Quarter Financial Results.
ALVO	8.82%	Positive after-hours movement for ALVOTECH SA (NASDAQ:ALVO) as its shares recorded a 8.82% increase, reaching $9.75 during Wednesday's after-hours session. The company's earnings where released Yesterday. Earlier today the company had a press release: Alvotech Reports Results for the First Six Months of 2025 and Provides a Business Update.
VSTM	8.48%	VERASTEM INC's (NASDAQ:VSTM) stock price is advancing with 8.48% to a price of $8.7. A press release (Verastem Oncology Announces Late-Breaking Abstract from Partner GenFleet Therapeutics’ Study in China of GFH375 (VS-7375) in Advanced Non-Small Cell Lung Cancer at IASLC 2025 World Conference on Lung Cancer) was released earlier today.
RRGB	7.33%	Positive after-hours movement for RED ROBIN GOURMET BURGERS (NASDAQ:RRGB) as its shares recorded a 7.33% increase, reaching $6.44 during Wednesday's after-hours session. yesterday the company released their earnings. In the last 3 months the share price increased with 82.93%.
ADNWW	6.9%	AMCI ACQUISITION CORP-CW26 (NASDAQ:ADNWW) rose 6.9% to $0.02 during Wednesday's after hours session. Furthermore, during the regular session, ADNWW had a very successful day, with shares closing 45.0% higher.
CDXS	6.89%	Notable gains for CODEXIS INC (NASDAQ:CDXS) in the after-hours session, with a 6.89% rise to $3.26 during Wednesday. The company's earnings where released Yesterday. The stock is trading 23.48% higher than 3 months ago.
IMRX	4.97%	IMMUNEERING CORP - CLASS A (NASDAQ:IMRX) rose 4.97% to $3.38 during Wednesday's after hours session. Earlier today the company had a press release: Immuneering Reports Second Quarter 2025 Financial Results and Provides Business Updates.

Our after hours gainers page will show you the full list.

After hours losers

Ticker	Change	Comment
BSLKW	-33.39%	GOLDEN ARROW MERGER A -CW26's (NASDAQ:BSLKW) stock price decreased by 33.39% to $0.07. After a notable 333.0% increase earlier today, BSLKW shows signs of a pullback during the after-hours session.
BSLK	-25.28%	BOLT PROJECTS HOLDINGS INC's (NASDAQ:BSLK) shares experienced a 25.28% decrease to $10.7 in the after-hours session. Despite a significant 557.0% gain earlier today, BSLK faces a reversal and declines in the after-hours session. A press release (Bolt Projects Holdings Reports Q2 2025 Financial Results) was released yesterday.
NDLS	-22.55%	Following a %ABSPERF% loss in the regular session, NOODLES & CO (NASDAQ:NDLS) exhibits further decline during today's after-hours session. yesterday the company released their earnings. The stock is trading 34.19% lower than 6 months ago.
GTEC	-20.59%	GREENLAND TECHNOLOGIES HOLDI's (NASDAQ:GTEC) stock price is showing a decline of 20.59% to a price of $1.08 during the after-hours session. The stock is trading 30.26% lower than a month ago.
OTRK	-20.32%	After today's %ABSPERF% drop, ONTRAK INC (NASDAQ:OTRK) shows further decline during today's after-hours session with a 20.32% decrease. The stock is trading 72.5% lower than 3 months ago.
CWD	-19.07%	CALIBERCOS INC-CL A's (NASDAQ:CWD) shares fell 19.07% to $2.08. yesterday the company released their earnings. Shareholders saw the stock price going 33.25% lower in the past 3 months.
COHR	-17.55%	Price volatility persists as COHERENT CORP (NYSE:COHR) closed the regular session with a %ABSPERF% loss, and the downward trend continues in the after-hours session. The company's earnings where released Yesterday. A press release (Coherent Corp. Reports Fourth Quarter and Full Year Fiscal 2025 Results) was released earlier today.
TNON	-15.57%	TENON MEDICAL INC's (NASDAQ:TNON) stock price is declining with 15.57% to a price of $1.41. The positive momentum earlier in the day is waning as TNON retraces 13.61% during the after-hours session. A press release (Tenon Medical Reports Second Quarter 2025 Financial Results) was released earlier today.
ATNFW	-12.73%	KBL MERGER CORP IV - CW23's (NASDAQ:ATNFW) shares declined by 12.73% to $0.48 during Wednesday's after-hours session. Despite a significant 416.0% gain earlier today, ATNFW faces a reversal and declines in the after-hours session.
BMBL	-11.61%	BUMBLE INC-A's (NASDAQ:BMBL) stock price is showing a decline of 11.61% to a price of $6.32 during the after-hours session. Shareholders saw the stock price going 23.92% higher in the past 3 months.

Our after hours losers page will show you the full list.