raising questions about big investments Wall Street had a rough start to the week on concern that a cheaper artificial ...

Celestica shares fell in lockstep with other tech companies Monday as China's DeepSeek low-cost AI model rattled the sector. Shares trading in Toronto were down nearly 17% to 144.23 Canadian dollars.

The emergence of China-based AI app DeepSeek sent shares plummeting on Monday for many U.S. tech giants, including chipmaker ...

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

Nvidia stock dropped more than 11% as a social media panic over the potential rise of a Chinese AI model upended chip stocks and the broader AI investment thesis early Monday.

Investors are worried about the rapid success of China's DeepSeek. It has developed low-cost AI models that don't require the ...

Nvidia, Microsoft, and Alphabet were among the market's top losers on Monday as the rise of DeepSeek rattled investors.

The emergence of China-based AI app DeepSeek sent shares plummeting on Monday for many U.S. tech giants, including chipmaker Nvidia and AI-backer Microsoft.

US stocks opened lower after Chinese startup DeepSeek's AI model shows AI can be built cheaply. That sparked fears AI spending will stall.

DeepSeek released an open-source artificial intelligence model in December after saying that it took only two months and less ...