Wall Street’s superstars are tumbling Monday as a competitor from China threatens to upend the artificial-intelligence frenzy ...

Wall Street's tech giants dragged US frontline indices on Monday after China's AI startup DeepSeek rattled Silicon Valley and ...

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 ...

In Amsterdam, Dutch chipmaking equipment company ASML slid 7%. In Tokyo, Japan’s Softbank Group Corp. lost 8.3% to pull ...

The S&P 500 and Nasdaq are dropping, while the Dow ekes out a gain as tech stocks fall amid fears over China's DeepSeek AI.