AI stocks today: Micron jumps as chip names hold up after TSMC’s big AI spend signal
Micron surged 5.6% to $355.58 Friday afternoon, leading gains in AI chip stocks after TSMC raised its 2026 revenue forecast and capex plan. Nvidia and AMD posted smaller increases. President Trump imposed a 25% tariff on some advanced AI chips, with exemptions for U.S. data centers. Lawmakers criticized continued Nvidia shipments to China under new rules.