The Korea Composite Stock Price Index (KOSPI) plummeted, triggering a circuit breaker as the Korea Exchange (KRX) suspended program-based sell orders for 5 minutes. The KRX announced that, amid downward market pressure driven by the Democratic Party's victory in the US midterm elections, the KOSPI tumbled 4.67 intraday to 5,418.15. This triggered the sell-side sidecar mechanism, halting program-based sell orders for 5 minutes (executed at 10:16 AM local time).