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

By Mill Chart

Last update: Jul 8, 2025

The regular session of the US market on Tuesday is now over, but let's get a preview of the after-hours session and explore the top gainers and losers driving the post-market movements.


postmarket

Gainers

TickerChangeComment
AES17.43%Impressive after-hours gains for AES CORP (NYSE:AES) as its stock price advanced 17.43% to $13.0 during Tuesday's after-hours session. Shareholders saw the stock price going 41.4% lower is the past year.
PET8.8%Positive market activity for WAG! GROUP CO (NASDAQ:PET) after regular trading hours, with a 8.8% increase to $0.28 in the after-hours session on Tuesday. Today's gain of 27.25% continues in today's after hours session with 8.8%.
LASE5.97%Notable gains for LASER PHOTONICS CORP (NASDAQ:LASE) in the after-hours session, with a 5.97% rise to $3.07 during Tuesday. Continuing the upward trend from today's 21.34% gain, LASE shows further advancement in the after-hours session. A press release (Laser Photonics Reports Strong Q1 2025 Revenue Growth Driven by Strategic CMS Integration and Multi-Sector Growth) was released yesterday.
PTIX4.96%After the regular session, PROTAGENIC THERAPEUTICS INC (NASDAQ:PTIX) continues to impress in the after-hours session, with a 4.96% increase to $3.6. The stock is trading 48.96% lower than 6 months ago.
CENN4.84%CENNTRO INC's (NASDAQ:CENN) shares rose 4.84% to $0.65 during Tuesday's after hours session. Prices are quite volatile here as CENN closed with a -11.43% loss today. Yesterday the company had a press release: Cenntro Develops Second-Generation Hydrogen Fuel Cell Class 8 Semi-Tractor and Receives EPA Certification.
CETY4.74%Positive market activity for CLEAN ENERGY TECHNOLOGIES IN (NASDAQ:CETY) after regular trading hours, with a 4.74% increase to $0.22 in the after-hours session on Tuesday. Shareholders saw the stock price going 20.71% lower in the past month.
RYTM4.39%RHYTHM PHARMACEUTICALS INC's (NASDAQ:RYTM) shares rose 4.39% to $68.0 during Tuesday's after hours session. Earlier today the company had a press release: Rhythm Pharmaceuticals To Announce Topline Results from Phase 2 Trial Evaluating Oral MC4R Agonist Bivamelagon in Acquired Hypothalamic Obesity.
KZIA4.11%KAZIA THERAPEUTICS-SPON ADR (NASDAQ:KZIA) exhibits strong performance after hours, with shares rising 4.11% to $7.1 during Tuesday's after-hours session. In the last month the share price increased with 22.54%.
OCC4.08%In the after-hours session on Tuesday, OPTICAL CABLE CORP (NASDAQ:OCC) experienced a notable 4.08% increase, driving its shares to $4.85. Also in the regular session OCC had a very good day: shares closed with a 28.73% gain.
VIOT4.03%VIOMI TECHNOLOGY CO LTD-ADR's (NASDAQ:VIOT) stock price is advancing with 4.03% to a price of $2.84. Shareholders saw the stock price going 82.07% higher in the past month.

For the full after hours gainers list go to our after hours gainers page.

After hours losers

TickerChangeComment
RXST-33.54%RXSIGHT INC's (NASDAQ:RXST) shares fell 33.54% to $8.5. A press release (RxSight, Inc. Announces Preliminary Second Quarter 2025 Revenue and Revised 2025 Guidance) was released earlier today.
EVTL-21.58%VERTICAL AEROSPACE LTD's (NYSE:EVTL) shares declined by 21.58% to $5.45 during Tuesday's after-hours session. A press release (Vertical Aerospace Announces Launch of Proposed Underwritten Public Offering) was released earlier today.
AEHR-20.9%AEHR TEST SYSTEMS's (NASDAQ:AEHR) stock price is showing a decline of 20.9% to a price of $12.0 during the after-hours session. The company's earnings where released Yesterday. Earlier today the company had a press release: Aehr Test Systems Reports Fiscal 2025 Fourth Quarter and Full Year Financial Results; Expands Total Addressable Market and Diversifies Customer Base.
BTCS-15.4%After today's 111.0% drop, BTCS INC (NASDAQ:BTCS) shows further decline during today's after-hours session with a 15.4% decrease. The positive momentum earlier in the day is waning as BTCS retraces 111.0% during the after-hours session.
RYDE-10.41%RYDE GROUP LTD-A's (NYSEARCA:RYDE) stock price saw a decrease of 10.41% to $0.41 during Tuesday's after-hours session. Following today's 43.3% gain, RYDE experiences a 10.41% decline in today's after-hours session.
NUKKW-9.89%Price volatility persists as NUKKLEUS INC -CW (NASDAQ:NUKKW) closed the regular session with a %ABSPERF% loss, and the downward trend continues in the after-hours session. The stock is trading 460.0% higher than a year ago.
ASTI-7.26%ASCENT SOLAR TECHNOLOGIES's (NASDAQ:ASTI) stock price decreased by 7.26% to $2.17. Yesterday the company had a press release: Ascent Solar Technologies Reflects on H1 2025 Achievements and Milestones, Looks Ahead to Executing Upon H2 2025 Strategy.
PENG-6.98%PENGUIN SOLUTIONS INC's (NASDAQ:PENG) stock price is showing a decline of 6.98% to a price of $19.71 during the after-hours session. The company's earnings where released Yesterday. Earlier today the company had a press release: Penguin Solutions Reports Q3 Fiscal 2025 Financial Results.
RMTI-6.56%ROCKWELL MEDICAL INC's (NASDAQ:RMTI) stock price is showing a decline of 6.56% to a price of $0.87 during the after-hours session. Despite a strong 16.84% gain earlier today, RMTI is experiencing a reversal in after-hours trading, with prices declining by 6.56%. Yesterday the company had a press release: Rockwell Medical and Innovative Renal Care Announce Three-Year Partnership Agreement to Ensure Supply Chain Continuity of Quality Hemodialysis Products.
BCTX-6.53%BRIACELL THERAPEUTICS CORP's (NASDAQ:BCTX) shares fell 6.53% to $2.72. Shareholders saw the stock price going 33.56% lower in the past 3 months.

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

ROCKWELL MEDICAL INC

NASDAQ:RMTI (8/4/2025, 8:00:01 PM)

After market: 1.01 +0.02 (+1.81%)

0.992

+0.04 (+3.78%)


PROTAGENIC THERAPEUTICS INC

NASDAQ:PTIX (8/4/2025, 8:00:01 PM)

After market: 2.6419 -0.05 (-1.79%)

2.69

-0.03 (-1.1%)


ASCENT SOLAR TECHNOLOGIES

NASDAQ:ASTI (8/4/2025, 8:00:01 PM)

After market: 1.7199 +0.01 (+0.58%)

1.71

+0.03 (+1.79%)


AEHR TEST SYSTEMS

NASDAQ:AEHR (8/4/2025, 8:00:00 PM)

After market: 19.2491 +0.22 (+1.15%)

19.03

+2.19 (+13%)


AES CORP

NYSE:AES (8/4/2025, 8:04:00 PM)

After market: 13.41 -0.02 (-0.15%)

13.43

+0.2 (+1.51%)


OPTICAL CABLE CORP

NASDAQ:OCC (8/4/2025, 8:00:01 PM)

After market: 5.79 -0.12 (-2.03%)

5.91

+1.17 (+24.68%)


RHYTHM PHARMACEUTICALS INC

NASDAQ:RYTM (8/4/2025, 8:00:01 PM)

After market: 90.24 0 (0%)

90.24

+1.94 (+2.2%)


KAZIA THERAPEUTICS-SPON ADR

NASDAQ:KZIA (8/4/2025, 8:20:45 PM)

8.34

+0.16 (+1.96%)


VIOMI TECHNOLOGY CO LTD-ADR

NASDAQ:VIOT (8/4/2025, 8:00:01 PM)

After market: 3.4516 -0.04 (-1.1%)

3.49

+0.25 (+7.72%)


BRIACELL THERAPEUTICS CORP

NASDAQ:BCTX (8/4/2025, 8:00:01 PM)

After market: 0.755 0 (0%)

0.755

+0.01 (+1.48%)


RXSIGHT INC

NASDAQ:RXST (8/4/2025, 8:00:01 PM)

After market: 7.8 -0.12 (-1.52%)

7.92

+0.12 (+1.54%)


BTCS INC

NASDAQ:BTCS (8/4/2025, 8:00:01 PM)

After market: 4.1301 +0.04 (+0.98%)

4.09

+0.03 (+0.74%)


VERTICAL AEROSPACE LTD

NYSE:EVTL (8/4/2025, 8:04:01 PM)

After market: 6.3 +0.14 (+2.27%)

6.16

+0.34 (+5.84%)


CENNTRO INC

NASDAQ:CENN (8/4/2025, 8:00:00 PM)

After market: 0.5 +0.01 (+2.86%)

0.4861

0 (-1%)


WAG! GROUP CO

NASDAQ:PET (7/29/2025, 8:11:09 PM)

After market: 0.0489 +0 (+4.26%)

0.0469

-0.07 (-59.91%)


LASER PHOTONICS CORP

NASDAQ:LASE (8/4/2025, 8:20:52 PM)

2.77

+0.09 (+3.36%)


CLEAN ENERGY TECHNOLOGIES IN

NASDAQ:CETY (8/4/2025, 8:00:00 PM)

After market: 0.2408 -0.01 (-2.07%)

0.2459

-0.04 (-13.72%)


NUKKLEUS INC -CW

NASDAQ:NUKKW (8/4/2025, 8:00:01 PM)

0.0895

+0 (+1.94%)


RYDE GROUP LTD-A

NYSEARCA:RYDE (8/4/2025, 8:04:00 PM)

After market: 0.3135 0 (-0.76%)

0.3159

+0.02 (+6.26%)


PENGUIN SOLUTIONS INC

NASDAQ:PENG (8/4/2025, 8:00:00 PM)

After market: 23.75 +0.05 (+0.21%)

23.7

+0.89 (+3.9%)



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