LIVE: Why US stocks are crashing today

U.S. stocks fell sharply, with the Nasdaq down 2.1%, the S&P 500 down 1.3%, and the Dow Jones Industrial Average down 279 points. Shares of AI-related companies Meta, AMD, Nvidia, Micron, and CoreWeave also declined as investors questioned large spending on artificial intelligence. Oil prices rose, with Brent crude above $112 and U.S. crude near $100, after Trump warned that something could happen soon with Iran. Treasury yields and major currencies fell, while Lockheed Martin gained 3% on strong earnings.