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

Shares of Quanta Services Inc. tumbled 18.32% to $292.43 Monday, on what proved to be an all-around mixed trading session for ...

Shares of Micron Technology Inc. plunged 11.71% to $91.11 Monday, on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.65% to ...

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 ...

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.

The S&P 500, a gauge of U.S. large-cap stocks, notched a record closing high of 6,118.71 on Jan. 23, according to Dow Jones Market Data. Big Tech stocks have massive market values, translating into ...

The Dow is up roughly 0.3%, versus a fall of 3.11% for the Nasdaq. If it holds, the Dow's 3.41 percentage point ...

After China's DeepSeek prompts AI rethink, Nvidia stock slides. Follow along for live updates on stocks and other markets, including the Dow Jones Industrial Average, S&P 500 and Nasdaq Composite.

Key stocks in the Dow Jones Industrial Average (DJIA), including McDonald’s, JPMorgan, and Goldman Sachs. Analyze ratings, ...