Tech market sell-off deepens as US inflation and AI debt fears spread

South Korea's Kospi 200 fell more than 8% to a six-month closing low, triggering circuit breakers, after US inflation rose to 3.7% in September. Nikkei 225 dropped 4.9%, with SoftBank down 10% and Kioxia down 11%, while SK Hynix fell nearly 11%. The International Monetary Fund warned that an AI share price correction could have global consequences.