HONG KONG/NEW YORK -- Shares in Nvidia plunged 17% on Monday to wipe out nearly $600 billion in market cap, the biggest single-day loss in U.S. history, in a broad tech sell-off after China's DeepSeek shook confidence in the outlook for spending on artificial intelligence.
Taiwan Semiconductor Manufacturing Co. saw its stock fall 13.3% in U.S. trading. The technology-heavy Nasdaq finished down 3% and the S&P 500 dropped 1.46%, while the Dow rebounded after an early dip to end the day up 0.65%.








