KOSPI Up More Than 2% Intraday... Briefly Surges 4%, Triggering Buy-Sidecar

The KOSPI is up more than 2%. It surged more than 4% intraday, triggering a buy-sidecar.

The KOSPI opened more than 1% higher on the 16th, rebounding from a steep decline that had continued through the previous day. The domestic stock market was displayed on an electronic board in the dealing room of Hana Bank in Jung-gu, Seoul. 2026.10.16. Photo by Kang Jinhyeong.

As of 1:38 p.m. on Oct. 21, the KOSPI stood at 5,705.87, up 153.13 points (2.76%) from the previous session. After opening higher, the index rose more than 4.7% intraday and briefly topped 5,800.

At 10:51 a.m., a buy-sidecar was triggered, temporarily suspending the effectiveness of program buy orders for five minutes. A buy-sidecar is triggered when the KOSPI 200 futures price rises at least 5% above the reference price and remains at that level for one minute.

Foreign investors led the day's gains. Foreign investors and institutions recorded net purchases of KRW 469.9 billion and KRW 19.8 billion, respectively, while individual investors recorded net sales of KRW 1.0206 trillion.

Most sectors rose. Medical precision instruments (+5.93%), electrical and electronic equipment (+4.11%), and manufacturing (+3.25%) gained, while metals (-2.25%), communications (-1.89%), and textiles and apparel (-1.30%) fell.

Among the 20 largest stocks by market capitalization, more rose than fell. SK (+11.33%), Samsung C&T (+5.45%), and Samsung Electronics (+5.20%) gained, while Kia (-1.78%) and Hyundai Motor (-0.16%) declined.

The KOSDAQ stood at 792.91, up 10.94 points (1.40%) from the previous session.

By investor type, individual investors and institutions recorded net purchases of KRW 54.9 billion and KRW 77.9 billion, respectively, while foreign investors recorded net sales of KRW 137.6 billion.

More sectors rose than fell. Non-metallic minerals (+3.25%), general services (+2.94%), and textiles and apparel (+1.88%) gained, while paper and wood (-1.17%), construction (-0.81%), and communications (-0.67%) declined.

Among the 20 largest stocks by market capitalization, more rose than fell. Samchundang Pharm (+3.90%), Alteogen (+3.46%), and TSE (+3.23%) gained, while HLB (-1.40%), PharmaResearch (-0.19%), and Leeno Industrial (-0.15%) declined.

This content was produced with the assistance of AI translation services.