Semiconductor Stocks Today: Nvidia, Micron, Broadcom and Intel Rise in Premarket as AI-Memory Boom Meets China Export Review (Dec. 19, 2025)
Micron shares rose 1.99% premarket after reporting earnings and guidance well above forecasts, citing strong AI memory demand and supply constraints. Nvidia gained 1.25% despite new U.S. policy scrutiny over AI chip shipments to China. Sector futures slipped 0.5% ahead of the open. Micron expects high-bandwidth memory market growth from $35B in 2025 to $100B by 2028.