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Biggest stock losers today

Stocks that fell the most in the last session · S&P 500 and Nasdaq-100 · as of Oct 16, 2026

The biggest losers on Oct 16, 2026: Nebius Group (NBIS) -12.2%, CoreWeave (CRWV) -11.9% and Super Micro Computer (SMCI) -9.9%.

Biggest stock losers today

20D
1NBISNebius Group N.V.$165.47-12.2%-42.3%—$39.71B
2CRWVCoreWeave, Inc. Class A Common Stock$61.39-11.9%-56.7%—$33.77B
3SMCISuper Micro Computer, Inc.$31.63-9.9%-42.5%9.7$20.78B
4MSTRStrategy Inc$136.83-9.6%-54.7%—$55.06B
5FLEXFlex Ltd.$90.46-8.2%-44.2%34.9$33.42B
6RKLBRocket Lab USA, Inc.$50.84-8.0%-66.2%—$30.43B
7MRNAModerna, Inc.$218.01-7.8%-7.8%—$87.04B
8PANWPalo Alto Networks, Inc.$342.00-7.6%-18.6%777.3$280B
9STXSeagate Technology Holdings plc$639.01-7.5%-41.5%46.0$145B
10PLTRPalantir Technologies Inc.$186.03-7.2%-11.0%157.7$428B
11DDOGDatadog, Inc.$247.11-7.2%-15.7%500.6$88.73B
12COHRCoherent, Inc.$232.90-7.1%-45.4%56.7$45.87B
13PEverpure, Inc.$124.01-7.0%-21.0%169.9$41.32B
14FTNTFortinet, Inc.$169.13-7.0%-13.2%59.6$124B
15CRWDCrowdStrike Holdings, Inc.$227.39-7.0%-18.5%6,478.3$233B
16ARMArm Holdings plc American Depositary Shares$227.80-6.9%-48.2%234.8$243B
17WDCWestern Digital Corporation$332.00-6.9%-55.5%13.4$124B
18SNDKSandisk Corporation$1,299.30-6.8%-44.4%17.6$188B
19CIENCiena Corporation$332.73-6.7%-46.9%74.3$47.18B
20AXONAxon Enterprise, Inc.$390.29-6.4%-48.6%161.8$31.71B

Data as of Oct 16, 2026 close.