Why Is AMD Stock Price Down 4.27% Today, August 18? Higher Yields Trigger Chip Selloff

AMD fell 4.27% amid a rate-driven tech de-risking, with higher long-end Treasury yields compressing valuations for AI-linked growth and a broad semiconductor selloff (SOX down ~5%). No new company-specific negative catalyst was cited; the move reflects macro repricing and elevated expectations following strong data-center revenue and guidance. Near-term sensitivity remains tied to yields, oil-driven inflation risk, and semiconductor breadth.