After Hours Movers

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2026-08-21

Today's After Hours Market Analysis

FRI, 5:45p ET: Risk-off sentiment prevails in the after-hours session as secondary offerings and equity distribution deals weigh on high-growth names. BCPC is surging +653.7% on extreme thin-volume volatility; CYPH adds +15.6% following a strategic $33 million Zcash mining bet. RFAI is the session's deepest laggard, sliding -21.2% on heavy volume; AAOI falls -9.2% after filing for a $600 million equity distribution.(more...)

Tape Overview

The after-hours session reflects a cautious risk-off tone as investors react to dilutive financing filings and sector-specific crypto catalysts.

Top Mover: Balchem Corporation (BCPC) — Extreme volatility on negligible volume

Balchem Corporation (BCPC) spiked 653.7% to $181.35 on just 13,912 shares. This move carries a significant thin-volume caveat and lacks an immediate fundamental catalyst, suggesting a potential data print error or liquidity gap.

Top Loser: RF Acquisition Corp II (RFAI) — Heavy selling pressure post-close

RF Acquisition Corp II (RFAI) tumbled -21.2% on 2.8 million shares, significantly outpacing its typical volume profile. The sharp decline indicates institutional repositioning or a reaction to undisclosed deal terms.

Also Moving

Applied Optoelectronics, Inc. (AAOI) shed -9.2% on 7.2 million shares following a $600 million equity distribution filing. Cypherpunk Technologies Inc. (CYPH) gained 15.6% on 12.7 million shares after announcing a $33 million investment into Zcash mining operations. Stablecoin Development Corporation (SDEV) rose 6.2% with a 67x volume ratio, signaling unusual accumulation.

Broader Context

Traders should monitor the impact of equity shelf filings on growth-stock liquidity as the market prepares for Monday's open.

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Data last updated: Friday, Aug 21 at 7:59 PM EDT

After Hours GainersGainers

%ChgLastSymbCompanyVolume
+654%
181.35
Balchem Corporation0k
+43%
4.63
Picard Medical, Inc.9k
+16%
1.64
Cypherpunk Technologies Inc. Common Stock68k
+15%
9.54
Silver Bow Mining Corp.1k
+14%
1.36
CDT Environmental Technology Investment Holdings Limited ordinary shares35k
+14%
2.54
ZJK Industrial Co., Ltd. Class A Ordinary Shares10k
+12%
1.52
BTCS Inc. Common Stock37k
+10%
2.20
TuHURA Biosciences, Inc. Common Stock19k
+9.5%
14.13
Future Vision II Acquisition Corporation Ordinary shares0k
+8.1%
3.98
Bit Origin Limited Class A Ordinary Shares4k

After Hours LosersLosers

%ChgLastSymbCompanyVolume
-35%
40.47
RF Acquisition Corp II Ordinary Shares0k
-14%
15.35
AIFU Inc. Class A Ordinary Share0k
-11%
2.60
ZKH Group Limited American Depositary Shares, each representing thirty-five (35) Class A Ordinary Shares30k
-10%
11.93
JATT II Acquisition Corp Ordinary Shares0k
-10%
112.15
Applied Optoelectronics, Inc.127k
-9.8%
23.91
Wetour Robotics Limited Ordinary Shares1k
-9.1%
13.50
NIP Group Inc. American Depositary Shares0k
-8.4%
6.36
Rising Dragon Acquisition Corp. Ordinary Shares1k
-7.4%
4.18
SmartKem, Inc. Common Stock1k
-7.3%
1.63
SunScout Holding Limited15k

After Hours ActivesActives

%ChgLastSymbCompanyVolume
+0.3%
363.95
Tesla, Inc. Common Stock713k
-0.3%
963.37
Micron Technology, Inc.254k
+0.3%
215.37
Nvidia Corp1401k
+0.5%
145.77
Moderna, Inc. Common Stock453k
+0.1%
309.61
Apple Inc.655k
-0.2%
1593.55
Sandisk Corporation Common Stock71k
-0.1%
136.73
Space Exploration Technologies Corp. Class A Common Stock1069k
+0.0%
483.44
Microsoft Corp268k
+0.4%
259.56
Amazon.Com Inc541k
-0.2%
89.86
Intel Corp1157k

After Hours Unusual VolumeUnusual Volume

%ChgLastSymbCompanyVolume
+0.4%
1.14
Stablecoin Development Corporation36k
+7.8%
1.66
Lisata Therapeutics, Inc. Common Stock37k
-2.5%
1.54
reAlpha Tech Corp. Common Stock14k
-1.1%
1.85
Borealis Foods Inc. Class A Common Shares2k
+0.5%
2.02
Tron Inc. Common Stock40k
+2.3%
11.75
Nine Energy Service, Inc.3k
-5.2%
1.60
iSpecimen Inc. Common Stock7k
+3.8%
13.63
Sadot Group Inc. Common Stock14k
-2.1%
1.50
GD Culture Group Limited Common Stock34k
+1.1%
5.25
Arbutus Biopharma Corporation Common Stock260k

After Hours GainersGainers

%ChgLastSymbCompanyVolume
+654%
181.35
Balchem Corporation0k
+43%
4.63
Picard Medical, Inc.9k
+16%
1.64
Cypherpunk Technologies Inc. Common Stock68k
+15%
9.54
Silver Bow Mining Corp.1k
+14%
1.36
CDT Environmental Technology Investment Holdings Limited ordinary shares35k
+14%
2.54
ZJK Industrial Co., Ltd. Class A Ordinary Shares10k
+12%
1.52
BTCS Inc. Common Stock37k
+10%
2.20
TuHURA Biosciences, Inc. Common Stock19k
+9.5%
14.13
Future Vision II Acquisition Corporation Ordinary shares0k
+8.1%
3.98
Bit Origin Limited Class A Ordinary Shares4k

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