AI chip stocks rally: Nvidia and AMD jump on TSMC outlook as Trump tariff clouds China trade
Nvidia and AMD shares jumped Thursday after TSMC reported record profit and raised 2026 spending plans, with Nvidia up 2.8% and AMD up 5.5% by 10:15 a.m. ET. U.S.-listed TSMC shares gained 6.3%. New U.S. tariffs on select AI chips and tighter export rules added uncertainty around China demand. The White House said exemptions remain possible for some imports.