After-Hours Penny Stock Movers

Today's biggest after-hours penny stocks (under $5): top gainers, biggest losers, most active, and unusual-volume names trading after the 4:00 PM ET close. After-hours moves often preview the next day's setup, especially around earnings and material announcements.

Session: POST · Last updated: 5/20/2026 9:05:36 PM

Top Gainers

#SymbolCompanyPriceChg %Volume
1AREBAMERICAN REBEL HLDGS INC$0.129044.52%0
2LIMNLiminatus Pharma, Inc. Class A Common Stock$0.235032.59%2.0M
3UCARU Power Limited Class A Ordinary Shares$1.781031.03%5.6M
4BNZIBanzai International, Inc. Class A Common Stock$4.546028.48%3.9M
5JUNSJupiter Neurosciences, Inc. Common Stock$0.248018.05%5.6M
6YMTYimutian Inc. American Depositary Shares$1.245011.16%406K
7CGTLCreative Global Technology Holdings Limited Class A Ordinary Shares$0.427011.00%38K
8SOPASociety Pass Incorporated Common Stock$0.083810.66%30.2M
9JEM707 Cayman Holdings Limited Ordinary Shares$1.51009.42%30K
10SERASera Prognostics, Inc. Class A Common Stock$1.92409.32%8K
11OFALOFA Group Class A Ordinary Shares$0.47109.28%18K
12ALPSALPS Group Inc Ordinary Share$0.74909.22%17K
13XCHXCHG Limited American Depositary Share$0.75308.56%705
14PHGEBiomX Inc.$0.65808.56%9.3M
15SPRCSciSparc Ltd. Ordinary Shares$4.43908.27%434
16SONMDNA X, Inc. Common Stock$4.85008.24%246
17TMDETMD Energy Limited$0.76108.22%9K
18AKTXAkari Therapeutics plc ADR (0.01 USD)$3.70007.87%994
19MSSMaison Solutions Inc. Class A Common Stock$1.01207.66%6K
20XRTXXORTX Therapeutics Inc. Common Stock$2.61507.61%512

Top Losers

#SymbolCompanyPriceChg %Volume
1BKYIBIO-KEY INTL INC$3.4700-23.10%0
2ODVOsisko Development Corp.$2.4910-15.30%300K
3HCWBHCW Biologics Inc. Common Stock$2.0850-13.80%4.3M
4WTOUTime Limited Class A Ordinary Shares$0.8330-12.80%11K
5CJMBCallan JMB Inc. Common Stock$0.6430-10.10%26K
6JYDJayud Global Logistics Limited Class A Ordinary Shares$0.8110-9.92%197K
7HLPHongli Group Inc. Ordinary Shares$0.5020-9.19%214K
8CCTGCCSC Technology International Holdings Limited Class A Ordinary Shares$0.5370-9.04%25K
9GUREGulf Resources, Inc. (NV) Common Stock$3.4500-8.73%1K
10MTVAMetaVia Inc. Common Stock$2.6350-8.62%1.0M
11MEHAFunctional Brands, Inc. Common Stock$0.0777-8.59%3.7M
12VSAVisionSys AI Inc American Depositary Shares$0.3010-8.23%163K
13XCURExicure, Inc. Common Stock$2.7490-8.06%534
14GDTCCytoMed Therapeutics Limited Ordinary Shares$1.2160-7.88%4K
15YJYunji Inc. American Depository Shares$1.6500-7.82%52
16PETSPetMed Express, Inc.$2.0600-7.62%32K
17VRAXVirax Biolabs Group Limited Ordinary Shares$0.2950-7.21%379K
18IVFINVO Fertility, Inc. Common Stock$1.5590-7.20%24K
19RKDAArcadia Biosciences, Inc.$0.8800-7.06%441K
20TDTHTrident Digital Tech Holdings Ltd American Depository Shares$1.3900-6.71%4K

Most Active

#SymbolCompanyPriceChg %Volume
1HCWBHCW Biologics Inc. Common Stock$2.0850-13.80%4.3M
2HIVEHIVE Digital Technologies Ltd. Common Shares$3.89500.67%2.1M
3PLUGPlug Power Inc.$3.3050-0.15%3.4M
4SLXNSilexion Therapeutics Corp Ordinary Shares$0.4990-6.00%2.2M
5MTVAMetaVia Inc. Common Stock$2.6350-8.62%1.0M
6BBAIBigBear.ai Holdings, Inc.$4.0660-0.32%2.7M
7GRABGrab Holdings Limited Class A Ordinary Shares$3.5050-0.14%6.0M
8PHGEBiomX Inc.$0.65808.56%9.3M
9JBLUJetBlue Airways Corp$4.6900-0.85%2.9M
10RXTRackspace Technology, Inc. Common Stock$4.01500.38%2.7M
11OPENOpendoor Technologies Inc Common Stock$4.40500.11%2.5M
12BBDBanco Bradesco S.A. American Depositary Shares (Each representing one Preferred Shares)$3.5650-0.14%2.3M
13BTGB2Gold Corp.$4.6600-0.21%3.0M
14ABEVAMBEV S.A.$3.24000.31%2.3M
15GCLGCL Global Holdings Ltd Ordinary Shares$0.79707.46%2.6M
16GGBGerdau S.A.$4.69500.11%1.6M
17AMPGAMPLITECH GROUP INC. COM$4.51501.92%545K
18QUCYQuantum Cyber N.V. Ordinary Shares$3.46605.38%708K
19NXXTNextNRG, Inc. Common Stock$0.69203.14%1.4M
20BLDPBallard Power Systems Inc.$4.76500.11%1.2M

Unusual Volume

#SymbolCompanyPriceChg %VolumeVol Ratio
1GDCGD Culture Group Limited Common Stock$0.1140-1.72%1.9M3528.78x
2PHGEBiomX Inc.$0.65808.56%9.3M3050.44x
3JUNSJupiter Neurosciences, Inc. Common Stock$0.248018.05%5.6M1427.39x
4RKDAArcadia Biosciences, Inc.$0.8800-7.06%441K1399.92x
5CAPSCapstone Holding Corp. Common Stock$0.3710-3.66%1.1M507.03x
6MTVAMetaVia Inc. Common Stock$2.6350-8.62%1.0M387.53x
7AMSTAmesite Inc.$1.9260-3.94%408K304.12x
8SBFMSunshine Biopharma Inc.$0.3530-3.89%240K269.63x
9SNALSnail, Inc. Class A Common Stock$1.1100-0.89%109K107.57x
10NXXTNextNRG, Inc. Common Stock$0.69203.14%1.4M67.48x
11SOPASociety Pass Incorporated Common Stock$0.083810.66%30.2M64.66x
12GOVXGeoVax Labs, Inc. New$2.1400-4.04%97K45.30x
13GIPRGeneration Income Properties Inc. Common Stock$0.4660-0.83%195K39.85x
14SDOTSadot Group Inc. Common Stock$0.1740-2.08%55K37.30x
15AMPGAMPLITECH GROUP INC. COM$4.51501.92%545K32.64x
16PMIPicard Medical, Inc.$0.1460-5.19%344K31.05x
17AMIXAutonomix Medical, Inc. Common Stock$0.35004.01%47K28.89x
18SNYRSynergy CHC Corp. Common Stock$0.25001.71%113K28.62x
19WGRXWellgistics Health, Inc. Common Stock$0.1250-3.88%5.2M25.13x
20BZFDBuzzFeed, Inc. Class A Common Stock$1.58000.64%201K22.41x

Why After-Hours Penny Stocks Matter

After-hours trading (4:00 PM - 8:00 PM ET) is when most material news drops — earnings, FDA decisions, contract wins, financings. For penny stocks the price reaction is often violent because liquidity is thin: a small order can move the quote several percent. That makes the after-hours print an important signal but a dangerous place to size in.

What to weigh:

  • Catalyst type: earnings beats and FDA approvals tend to hold into the next session; financings and dilutive offerings often fade.
  • Volume vs. quote-only: a 40% gain on 100 shares trading is a quote, not a market.
  • Halt history: stocks that gapped up in pre-market the same day and gap again after-hours often see crowd exhaustion.
  • Bid/ask spread: a 20-cent spread on a $2 stock means execution risk dominates the trade.

See also: pre-market penny stocks, full-session movers, short squeeze candidates.