Meta's Muse App Just Repriced the CPU Side of AI

AMD closed above a $1 trillion market value for the first time on Monday, September 21, and the catalyst was not a datacenter order or a hyperscaler guidance raise. It was a phone app. The stock rose 9.95% to $615.52 on volume of roughly 44.2 million shares, and the whole CPU side of the AI trade moved with it.
Key Takeaways AMD rose 9.95% to $615.52 on Monday, September 21, closing above a $1 trillion market cap for the first time, per Yahoo Finance quote data. Meta's Muse agent app, launched September 8, passed 2.5 million downloads in 13 days and topped the US App Store free chart. Arm gained 17.16% to $322.90, Intel rose 12.14% to $121.78, and Meta added 11.43% to $741.25 in the same sess…
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