AMD shares surged after securing a multi-billion-dollar AI chip deal with OpenAI, reinforcing its competitive momentum in the generative AI hardware market. The agreement deepens AMD’s role in supplying data center-grade processors, intensifying its rivalry with Nvidia. Analysts said the deal sparked renewed sector rotation into semiconductor stocks across U.S. and Asian markets, highlighting accelerating investment flows toward AI infrastructure and strengthening AMD’s long-term position in the global chip supply chain.