Intel, AMD, and Arm shares soar on potential CPU demand sparked by the popularity of Meta's Muse; INTC jumps 12%+, AMD is up 8%+, and ARM 15%+ (Adam Clark/Barron's Online)

Amazon blocked Meta’s Muse AI agent from shopping on Amazon.com, citing terms-of-service violations, security risks, and lack of merchant consent. The move sparked a surge in demand for AI-enabled CPUs, sending Intel shares up 12%, AMD up 8%, and Arm up 15%, while AMD’s market value surpassed $1 trillion during intraday trading.