After Hours Movers

Stock movers, including top gainers, losers, and most actively traded stocks.
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2026-08-31

Today's After Hours Market Analysis

TODAY, 5:45p ET: Risk-off sentiment prevails in after-hours trading as high-volume tech names drift lower. GPRO surging +41.6% after YouTuber Markiplier disclosed an 8.5% stake; LABT +30.9% on speculative biotech volume. SQFT plunging -16.4% on massive 1,400x relative volume; CANG -10.1% following its Q2 earnings release.(more...)

Tape Overview

The after-hours session carries a cautious, risk-off tone as mega-cap tech leaders trade slightly lower on heavy absolute volume. Breadth remains narrow, with idiosyncratic retail catalysts and earnings reports driving the only significant volatility.

Top Mover: GPRO — YouTuber Markiplier discloses 8.5% stake

GoPro, Inc. (GPRO) jumped 41.6% on over 110m shares after YouTuber Mark "Markiplier" Fischbach became the company's largest shareholder. He cited deep undervaluation and a mission to democratize filmmaking, sparking a massive short-squeeze attempt in the sub-$2 name.

Top Loser: SQFT — Massive selling on 1,400x relative volume

Presidio Property Trust, Inc. (SQFT) collapsed -16.4% in extended trading on an extreme 1,413x volume ratio. This aggressive liquidation occurred without a fresh fundamental catalyst, suggesting a forced exit or a major institutional block trade hitting the tape.

Also Moving

Cango Inc. (CANG) shed -10.1% on 733k shares after reporting Q2 results that highlighted its pivot toward Bitcoin mining and AI compute. Cadrenal Therapeutics, Inc. (CVKD) fell -8.5% despite announcing FDA alignment on its Phase 3 protocol, as traders focused on the company's limited $4.2m cash runway.

Broader Context

Watch for follow-through in the action-camera space tomorrow, though the broader market remains tethered to Nvidia Corp (NVDA) and Tesla, Inc. (TSLA), which both saw steady selling pressure tonight.

Show per section:
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Data last updated: Today at 5:58 PM EDT

After Hours GainersGainers

%ChgLastSymbCompanyVolume
+51%
1.31
GoPro, Inc.1465k
+29%
3.22
Lakewood-Amedex Biotherapeutics Inc. Common Stock56k
+15%
6.38
Wetour Robotics Limited Ordinary Shares89k
+13%
1.51
YY Group Holding Limited Class A Ordinary Shares6k
+9.2%
279.00
Erie Indemnity Co21k
+6.1%
16.66
AIOS Tech Inc. Class A Common Shares2k
+6.0%
25.15
Flotek Industries, Inc.10k
+6.0%
2.35
System1, Inc.12k
+5.5%
4.45
Everbright Digital Holding Limited Ordinary Shares0k
+5.2%
8.19
Westrock Coffee Company Common Stock15k

After Hours LosersLosers

%ChgLastSymbCompanyVolume
-17%
1.61
Presidio Property Trust, Inc. Class A Common Stock15k
-14%
5.54
Antelope Enterprise Holdings Limited Class A Ordinary Shares53k
-11%
14.84
Eloxx Pharmaceuticals, Inc. Common Stock1k
-9.4%
8.07
StablecoinX Inc. Class A Common Stock51k
-9.3%
24.81
Cable One, Inc.14k
-9.1%
1.59
Cadrenal Therapeutics, Inc. Common Stock34k
-9.0%
3.88
BrenX Ltd. Ordinary Shares2k
-8.6%
5.91
Artelo Biosciences, Inc. Common Stock0k
-8.5%
2.21
Cango Inc.13k
-6.8%
2.66
Nocera, Inc. Common Stock91k

After Hours ActivesActives

%ChgLastSymbCompanyVolume
-0.2%
220.54
Nvidia Corp2444k
-0.1%
367.36
Tesla, Inc. Common Stock673k
-0.9%
1553.51
Sandisk Corporation Common Stock518k
-0.1%
958.02
Micron Technology, Inc.397k
+0.1%
260.06
Amazon.Com Inc812k
+0.1%
317.06
Apple Inc.914k
+0.1%
507.60
Microsoft Corp806k
-0.1%
143.47
Space Exploration Technologies Corp. Class A Common Stock832k
-0.0%
572.15
Meta Platforms, Inc. Class A Common Stock250k
+0.0%
89.56
Intel Corp1137k

After Hours Unusual VolumeUnusual Volume

%ChgLastSymbCompanyVolume
-17%
1.61
Presidio Property Trust, Inc. Class A Common Stock15k
-9.1%
1.59
Cadrenal Therapeutics, Inc. Common Stock34k
-1.7%
3.88
Beyond Air, Inc. Common Stock9k
+6.0%
2.35
System1, Inc.12k
-3.5%
2.04
TransCode Therapeutics, Inc. Common Stock4k
-3.5%
10.63
Corvex, Inc. Common Stock45k
+51%
1.31
GoPro, Inc.1465k
-0.8%
3.01
Zedge, Inc.2k
-6.8%
2.66
Nocera, Inc. Common Stock91k
+0.8%
1.31
Mobix Labs, Inc. Class A Common Stock52k

After Hours GainersGainers

%ChgLastSymbCompanyVolume
+51%
1.31
GoPro, Inc.1465k
+29%
3.22
Lakewood-Amedex Biotherapeutics Inc. Common Stock56k
+15%
6.38
Wetour Robotics Limited Ordinary Shares89k
+13%
1.51
YY Group Holding Limited Class A Ordinary Shares6k
+9.2%
279.00
Erie Indemnity Co21k
+6.1%
16.66
AIOS Tech Inc. Class A Common Shares2k
+6.0%
25.15
Flotek Industries, Inc.10k
+6.0%
2.35
System1, Inc.12k
+5.5%
4.45
Everbright Digital Holding Limited Ordinary Shares0k
+5.2%
8.19
Westrock Coffee Company Common Stock15k

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