AI stock sell-off triggers worst Wall Street day since April 2025

A sell-off in AI-related stocks sent Wall Street into a sharp decline on Thursday, with the S&P 500 falling 3.5% and erasing the previous day's gains. The Dow dropped 1,433 points, and the Nasdaq fell 4.7%, marking the worst day since April 2025. The losses were driven by concerns that high borrowing costs and Democratic victories in Tuesday's midterm elections could slow AI data center construction. Nvidia fell 7.5%, AMD tumbled 14.6%, and CoreWeave dropped 12.1%, with every S&P 500 sector losing ground. Global markets also suffered, with South Korea's Kospi down 5.3% and Japan's Nikkei 225 sinking 1.8%. Treasury yields eased to 4.83%, while Brent crude rose 2.6% to $97.11, as investors sought safer assets amid ongoing uncertainty.