MarketPR

KOSPI Circuit Breaker Triggered as South Korean Index Slides Past 8% Threshold, Trading Halted 20 Minutes

6/1/2026

South Korea's benchmark KOSPI fell more than 8% from the previous session's close, activating the first stage of the exchange's circuit breaker system and freezing order execution for 20 minutes.

The intervention — among the rarest in Korean market history — is structured to interrupt cascading sell-offs by forcing a mandated pause before trading resumes.

Investors tracking broad Asian exposure, including via $ASIA, are watching the session closely as the fallout develops.

How the Three-Stage Circuit Breaker Works The Korea Stock Exchange operates a tiered circuit breaker designed to contain disorderly markets.