The KOSPI's annualized volatility topped 60% in 2026, surpassing Bitcoin, as Samsung and SK Hynix drive extreme index swings in South Korea.

South Korea's KOSPI index has plunged 35% in July 2026 amid a semiconductor rout, dragging Korean crypto exchange volumes down with it.

The KOSPI was up 17% at 6,549 points after tumbling nearly 17% over the previous three sessions, marking one of its steepest weekly declines, as fears of mounting competition from…