A Chinese AI company called DeepSeek is sending a shock wave through Wall Street. Margaret Brennan explains. President Trump ...

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

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

By Lawrence Delevingne, Samuel Indyk and Tom Westbrook BOSTON/LONDON/SINGAPORE (Reuters) -U.S. stock futures steadied, the ...

Chinese startup DeepSeek has debuted an AI app that challenges OpenAI's ChatGPT and other U.S. rivals, sending a shock ...

A tech sell-off on Monday saw more than $1 trillion in value erased over concerns over China's DeepSeek AI app.

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 ...

Silicon Valley and Washington leaders said the app shows China can challenge the U.S. The Nasdaq lost 3 percent and chipmaker ...

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Wall Street tumbled on fears the big U.S. companies that have feasted on the artificial-intelligence frenzy are under threat ...