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

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 ...

Some of Nvidia's rivals in the AI space, including Arm and Broadcom, also saw their share prices slump on Monday. Stock ...

The emergence of DeepSeek's free assistant has placed big doubts over the US market's AI-driven rally of the past two years.

Nvidia's market value plummeted by over $500 billion following the introduction of a cost-effective AI model by Chinese ...