KOSPI Plunges 5.8% to 6,471 — Circuit Breaker Triggered, Samsung and SK Hynix Drop 7-9%, Foreigners Net Sell 3.5 Trillion Won
KOSPI plunged 5.8% on Aug 19, closing at 6,471. Major semiconductor stocks including Samsung Electronics (-7.54%) and SK Hynix (-9.93%) collapsed, while foreign investors net sold 3.5 trillion won. Index futures falling more than 6% triggered a circuit breaker. The won-dollar exchange rate fell to 1,397.7 won, dropping below the 1,400-won threshold for the first time in 11 months.