On the morning of the 8th, when a KOSPI buy sidecar was activated, the display board at the Hana Bank dealing room in Jung District, Seoul, shows the KOSPI index up more than 6%. Moon Jae-Won Reporter

As the KOSDAQ index surged on the 8th, a buy sidecar was activated on the KOSDAQ market.

The Korea Exchange announced that at 9:13:52 a.m. that day, a buy sidecar (temporary suspension of the effectiveness of program-trading buy orders) was activated on KOSDAQ. A buy sidecar is a mechanism that halts program buying for five minutes to mitigate volatility. It is triggered when the KOSDAQ 150 index rises 3% and KOSDAQ 150 futures climb 6% for one minute. At the time of activation, the KOSDAQ 150 index was up 5.49%, and KOSDAQ 150 futures were up 6.16%.

As of 9:18 a.m. that day, the KOSDAQ was trading at 1,083.37, up 46.64 points (4.5%) from the previous close. Samchundang Pharm (-9.54%) fell sharply, but other large-cap stocks were strong, supporting the index.

Earlier, as the KOSPI jumped more than 6% from early trading, a buy sidecar was also activated on the KOSPI market.