South Korea's Kospi plunges more than 7% as tech selloff spreads across Asia

South Korea's Kospi fell more than 7% on Thursday and Japan's Nikkei 225 dropped about 5%, as a selloff in technology and AI-related shares spread to Asia. It followed losses on Wall Street Wednesday, when the S&P 500 fell 1.1% and the Nasdaq 1.9% after U.S. consumer prices rose 3.7% from a year earlier in September, above forecasts. Chipmakers Nvidia, Broadcom and AMD all fell Wednesday.