U.S. stocks mostly sold off Monday, amid fears China’s AI company DeepSeek could disrupt profits for Big Tech stocks.

The S&P 500 dropped 1.5 percent, dragged down in large part by a 16.9 percent fall for Nvidia. Other Big Tech stocks also ...

Wall Street’s superstars tumbled as a competitor from China threatens to upend the artificial-intelligence frenzy they’ve ...

Losses accelerated on Monday as AI bellwether Nvidia ( NVDA) dropped more than 17%, leading a sell-off across the broader ...

Stocks were sharply lower Monday afternoon on concerns about the competitive threat that China poses in the race to develop artificial intelligence.

Tesla's valuation is unsustainable, with potential downside risk targets under $100 per share if economic conditions worsen ...

The S&P 500 fell 1.9% Monday. Big Tech stocks took some of the heaviest losses, with Nvidia down 17.6%, and they dragged the ...

The tech-heavy Nasdaq Composite ( ^IXIC) sank nearly 3.5%, while the S&P 500 ( ^GSPC) dropped nearly 2%. The blue-chip Dow ...

Jan. 27, 12:30 p.m. ET U.S. stocks got walloped Monday: The S&P 500 was down about 2% at 12:30 p.m. EST, and the tech-heavy ...