Nvidia's market value dropped more than $500bn after the emergence of DeepSeek - a low-cost chatbot built by a Chinese AI firm.

TOKYO: Japanese tech stocks fell sharply for a second day running on Tuesday (Jan 28) following a plunge in US tech ...

U.S. equity declines followed a selloff that started in Asia, with Japan's SoftBank Group finishing down 8.3%, and moved through Europe where ASML fell 7% ...