Korea’s KOSPI crashes another 5% as AI rout deepens; AI bellwether down over 40% from peak

South Korea’s benchmark KOSPI fell 5% on Tuesday as a chip-led sell-off in artificial intelligence stocks deepened, cutting its 2026 gains to about 30% from roughly 116% at its record close in June. The index has dipped over 40% from its peak of 9,386 earlier this year. Chip heavyweight SK Hynix Inc