The Korea Exchange announced on the 10th that it triggered a sell-side sidecar in the securities market in the afternoon. This measure was taken because the price of futures based on the KOSPI200 plummeted. The futures, which were the most actively traded on the previous trading day, fell sharply by 64.65 points (-5.02%), dropping from the base price of 1,287.80 points to a current price of 1,223.15 points. According to Article 16 of the Securities Market Business Regulations, as the futures price remained down more than 5% compared to the base price for over one minute, the sell-side sidecar was triggered at 1:16:25 p.m. on this day. Accordingly, the validity of program sell orders in the securities market will be temporarily suspended for the next five minutes. A sidecar is a market stabilization mechanism introduced to mitigate the impact of rapid price fluctuations in the futures market on the spot market. It serves to calm excessive market volatility by restricting program trading orders for a certain period of time.