Reuters · October 15, 2026

South Korea's KOSPI Falls 8% on Thursday, Triggering a Circuit Breaker

• South Korea's KOSPI index fell 8% on Thursday, triggering a circuit breaker for the first time in 2-1/2 months, according to the report; trading was halted for 20 minutes.
• The halt was the 10th circuit-breaker activation on the KOSPI this year and the 16th in its history, according to the report.
• Samsung Electronics fell 9.70% and SK Hynix lost 11.35%; of 916 traded issues, 52 advanced and 855 declined, according to the report.
• Foreign investors were net sellers of shares worth 2.9 trillion won ($2.15 billion), according to the report.

Index, share and trading figures as reported by Reuters. Original headline: "South Korea's KOSPI triggers circuit breaker in tech-led selloff".