The S&P 500 was down 1.6% in morning trading. Big Tech stocks took some of the heaviest losses, with Nvidia down 11.2%, and ...

Today, I’m talking with Gary Smith, CEO of the networking company Ciena. You probably aren’t familiar with Ciena — the ...

Wall Street’s superstars are tumbling 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 ...

DeepSeek has complicated the dominant narrative that's propped up the market for the last two years, challenging lofty ...

The stock market was having a rough day on Monday, with the S&P 500 (SNPINDEX: ^GSPC) benchmark index down by about 1.7% at 11 a.m. ET. However, real estate was one of the biggest exceptions, with the ...

The S&P 500 and the Nasdaq dropped on Monday, as the surging popularity of a low-cost Chinese artificial intelligence model ...

Stocks outside of AI-related industries held up much better, though, and the Dow Jones Industrial Average was down just 58 points.

The hack at Change Healthcare stands as the biggest breach of U.S. medical data in history, exposing 190 million people's ...

In Amsterdam, Dutch chip supplier ASML slid 8.5%. In Tokyo, Japan’s Softbank Group Corp. lost 8.3% and is nearly back to ...

Hedge funds were already waiting to see if a U.S.-fostered, home-grown artificial intelligence boom would continue as China's ...

Symptoms include high fever, body aches, vomiting and diarrhea. Physicians said it's impacting people of all ages. The rise in cases is due to the current flu season, but the recent cold snap could ...