Micron Technology is trading 4.5% down now at $217.50 on October 9, 2026, as AI-spending concerns weigh on semiconductor stocks.

  • Reports put OpenAI’s annualized revenue at about $50 billion, below earlier expectations, renewing concerns about AI spending.
  • Micron and other semiconductor names fell together, extending Thursday’s selloff amid broader technology-market and macroeconomic pressure.
  • No new Micron-specific announcement explaining the move was identified; available reporting points primarily to AI-demand concerns and sector weakness.