S&P 500 slides, Nasdaq drops 3% in sharp AI stock sell-off spurred by China’s DeepSeek: Live updates

The S&P 500
and Nasdaq Composite
were down sharply Monday on concern about an artificial intelligence stock bubble popping because of the emergence of Chinese startup DeepSeek, which has possibly made a competitive AI model for a fraction of the billions Silicon Valley is spending.

The Nasdaq Composite lost 3.07%, falling to 19,341.83, and the S&P 500 slid 1.46% to 6,012.28. The Dow Jones Industrial Average
added 289.33 points, or 0.65%, to close at 44,713.58. Gains in Apple
, Johnson & Johnson
and Travelers
helped lift the 30-stock index.