Meta's 'Muse' AI Agent Sparks Chip Rally: Arm Jumps 13%, Intel 12%, AMD 9%

Shares of chipmakers jumped in the September 21 session after Meta introduced an AI agent called Muse, which investors read as a signal that demand for computing power extending beyond GPUs will keep growing. Arm rose 13%, Intel climbed 12% and AMD gained 9%. The move mattered because it broadened the AI trade beyond Nvidia and its closest peers. Investors have worried that gains in AI-linked stocks were narrowly concentrated in a handful of names tied to graphics processors. A rally that lifts CPU-focused names like Intel and Arm suggests some investors think the AI buildout will need more types of chips than previously priced in. What remains unresolved is whether Muse itself generates meaningful revenue for Meta or simply serves as a proof-of-concept that shifts sentiment toward chip suppliers. No financial guidance tied to Muse has been disclosed.