News Image

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 (7/31/2025, 10:03:44 AM)

0.9814

+0 (+0.14%)


PROTAGENIC THERAPEUTICS INC

NASDAQ:PTIX (7/31/2025, 10:03:34 AM)

3.16

-0.03 (-0.94%)


ASCENT SOLAR TECHNOLOGIES

NASDAQ:ASTI (7/31/2025, 10:04:26 AM)

1.82

-0.03 (-1.62%)


AEHR TEST SYSTEMS

NASDAQ:AEHR (7/31/2025, 10:07:07 AM)

18

+0.16 (+0.9%)


AES CORP

NYSE:AES (7/31/2025, 10:07:09 AM)

13.185

+0.11 (+0.8%)


OPTICAL CABLE CORP

NASDAQ:OCC (7/31/2025, 10:05:06 AM)

4.81

+0.09 (+1.91%)


RHYTHM PHARMACEUTICALS INC

NASDAQ:RYTM (7/31/2025, 10:07:03 AM)

85.28

+0.62 (+0.73%)


KAZIA THERAPEUTICS-SPON ADR

NASDAQ:KZIA (7/31/2025, 10:05:47 AM)

8.2295

-0.24 (-2.78%)


VIOMI TECHNOLOGY CO LTD-ADR

NASDAQ:VIOT (7/31/2025, 10:05:05 AM)

2.97

-0.13 (-4.19%)


BRIACELL THERAPEUTICS CORP

NASDAQ:BCTX (7/31/2025, 10:06:41 AM)

0.8

0 (-0.37%)


RXSIGHT INC

NASDAQ:RXST (7/31/2025, 10:06:40 AM)

7.87

-0.11 (-1.38%)


BTCS INC

NASDAQ:BTCS (7/31/2025, 10:07:09 AM)

4.88

+0.05 (+1.04%)


VERTICAL AEROSPACE LTD

NYSE:EVTL (7/31/2025, 10:07:05 AM)

6.265

-0.08 (-1.18%)


CENNTRO INC

NASDAQ:CENN (7/31/2025, 10:06:03 AM)

0.5211

-0.01 (-1.86%)


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 (7/31/2025, 10:04:27 AM)

3.04

+0.09 (+3.05%)


CLEAN ENERGY TECHNOLOGIES IN

NASDAQ:CETY (7/31/2025, 10:02:14 AM)

0.2264

+0 (+0.31%)


NUKKLEUS INC -CW

NASDAQ:NUKKW (7/31/2025, 10:03:32 AM)

0.0942

0 (-4.66%)


RYDE GROUP LTD-A

NYSEARCA:RYDE (7/31/2025, 10:05:43 AM)

0.3053

+0 (+1.46%)


PENGUIN SOLUTIONS INC

NASDAQ:PENG (7/31/2025, 10:06:43 AM)

23.76

-0.23 (-0.96%)



Find more stocks in the Stock Screener

Follow ChartMill for more