Arm, Marathon Digital, and SanDisk all jumped over 10% as semiconductor and AI infrastructure stocks…

As seen on the 24/7 Wall St. homepage on July 9, 2026.

Biggest movers · At the close
Gainers
  • ARMArm$332+10.6%
  • MARAMarathon Digital$13.26+10.3%
  • SNDKSanDisk$1,903.99+10.2%
  • HPEHewlett Packard Enterprise$48.93+9.5%
  • AAOIApplied Optoelectronics$124.86+9.1%
Losers
  • AXONAxon Enterprise$577.03-3.8%
  • DKNGDraftKings$26.35-3.0%
  • CRMSalesforce$161.71-2.9%
  • PLTRPalantir$128.51-2.8%
  • XOMExxon Mobil$137.51-2.6%

Arm, Marathon Digital, and SanDisk all jumped over 10% as semiconductor and AI infrastructure stocks dominated the close. Energy stocks fell, with Exxon Mobil sliding 2.6%.

Mentioned: ARM, MARA, SNDK, HPE, AAOI, AXON, DKNG, CRM

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