Wall Street's superstars are tumbling Monday as a competitor from China threatens to upend the artificial-intelligence frenzy that's helped them make so much money.
After China's DeepSeek prompts AI rethink, Nvidia stock slides. Follow along for live updates on stocks and other markets, including the Dow Jones Industrial Average, S&P 500 and Nasdaq Composite.
S&P 500 futures are falling 1.6%. Dow Jones Industrial Average futures are dropping 0.9%. Nasdaq 100 futures are plunging 2.6%. On Friday, the Dow Jones Industrial Average fell 141 points, or 0.32%, ...