US Stock Market Today After Hours: S&P 500, Nasdaq Hit Records as AMD Jumps on AI Demand
U.S. stocks finished Tuesday at fresh records as enthusiasm for artificial intelligence spilled into the after-hours session. Advanced Micro Devices surged 12% post-close, boosted by a revenue forecast that topped expectations. The S&P 500 and Nasdaq wrapped up at all-time highs, with AMD’s gains coming as shares traded after the 4 p.m. New York bell.