Big Tech Stocks Today: Oracle’s AI Spending Shock, Broadcom Margin Warning, and Nvidia China Chip Scrutiny Shape U.S. Premarket (Dec. 12, 2025)
As of about 6:00 a.m. ET on Friday, December 12, 2025, U.S. big tech stocks are mixed in premarket trading—with investors juggling two competing narratives: AI demand remains powerful, but the cost of building it is rising fast, and markets