Biggest move · Sep 21, 2026 ·
ARM closed up 17.1% on Sep 21, 2026
SPY +1.6% the same day
Indexes and sectors
SPY+1.6%
QQQ+2.8%
IWM+0.5%
DIA+0.8%
TechXLK+2.7%
SemisSMH+4.1%
CommunicationXLC+3.5%
DiscretionaryXLY+1.1%
FinancialsXLF0.0%
Health careXLV+0.3%
IndustrialsXLI+0.1%
EnergyXLE−2.9%
MaterialsXLB−0.5%
StaplesXLP−1.1%
UtilitiesXLU−1.1%
Real estateXLRE+0.2%
The big names
META+11.4%MU+2.8%AMD+10.0%NVDA+2.3%INTC+12.0%MSFT+1.8%TSLA+3.0%AAPL+1.0%AMZN+1.9%GOOGL+1.7%TSM+2.5%AVGO+1.5%ARM+17.1%SHOP+7.4%MSTR+9.4%NFLX+2.2%CRWD+4.9%BAC+0.5%COIN+3.4%PLTR+3.1%ORCL+0.7%SMCI+5.3%QCOM+9.2%HOOD +2.9%CRM−0.5%PANW+2.3%XOM−3.0%COST +0.3%JPM +0.8%LLY +1.0%WMT +0.7%UNH +0.2%ADBE +0.3%BA +1.4%UBER +0.4%BABA +2.2%DIS +1.5%SOFI 0.0%PYPL +0.3%RIVN +2.5%
ARM vs SPY from the prior close
- Prior close
- 275.74
- Close
- 322.97
- High
- 324.15
- Low
- 293.29
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