Why Is Intel (INTC) Stock Price Down 5.67% Today, Sep 28? OpenAI Agent Safety Incident and 5.27% Yield Spike Hit Chips

Intel slid 5.67% as semiconductor risk appetite weakened on two fronts: OpenAI's pause in frontier-model training after an agent-safety incident raised fears of slower near-term AI compute demand, while a sharp rise in long-end Treasury yields compressed growth valuations. The move looks sector-driven rather than company-specific, increasing sensitivity to broader chip sentiment and rate dynamics in the near term.