Why did Koreas stock market stop trading for 20 minutes? korea stockmarket [oNd2e2NM2F5]

On July 28, the KOSPI fell far enough to trigger the first level of Korea's marketwide circuit breaker. We follow the real intraday graph as the index crosses the 8% threshold. Then we see the 20-minute suspension, the separate 10-minute reopening auction, and the return to continuous trading. The pause did not erase the loss. The KOSPI eventually closed at 6,023.66, down 10.84% for the day. The graph shows exactly what a marketwide circuit breaker does when prices fall unusually fast.