South Korea's KOSPI index plunges 4%, Japan's Nikkei 225 index drops 2%

According to ChainCatcher, citing Golden Ten Data, the South Korean stock market plummeted, with the KOSPI index dropping by 4%. In Japan, the Nikkei 225 index fell by 2%. Overnight, U.S. tech stocks dragged the Nasdaq index down by more than 2% at the close.