Asian Markets Plunge in Coordinated Chip-Stock Selloff Ahead of Big Tech Earnings

On July 28, 2026, a coordinated AI-sector selloff slammed three Asian indices: South Korea's KOSPI fell over 8%, triggering a circuit breaker; Japan's Nikkei 225 closed down 4.3% at 62,127.57; Taiwan's Taiex dropped 3.9%. Samsung Electronics lost 13.4% and SK Hynix fell 10% amid Nvidia financing worries and China competition concerns. The rout preceded major Big Tech earnings releases.