KOSPI Surges 4%, Triggering Buy-Side Car Mechanism

The KOSPI index surged over 4% in early trading on the 5th, leading to the activation of a buy-side car mechanism on the stock market. The Korea Exchange implemented a five-minute suspension of program buy orders around 9:24:56 AM, after the KOSPI 200 futures index rose more than 5% compared to the previous trading day and sustained this increase for over a minute. Buy orders normalized after the suspension period ended. This mechanism is designed to prevent excessive short-term stock price increases and promote market stability.

At the time the buy-side car was activated, the KOSPI 200 futures index stood at 1,049.28, up 5.12% from the previous trading day. The measure was taken as the futures index's rise exceeding 5% indicated strong program buying interest, particularly in large-cap stocks.

As of 9:27 AM that morning, the KOSPI was trading at 6,647.21, a 4.53% increase from the previous close. The KOSDAQ index also saw gains, rising 2.75% to 802.20 over the same period.