Market Update

[Breaking News] KOSPI Triggers Buy-Side Circuit Breaker After Surging Over 4%… First Time in Four Trading Days

Samsung Electronics and INICS Corporation are each surging 5% and 7%, respectively

Kwon Oh Seok
2026-10-27 10:18:54

[Edaily Reporter Kwon Oh Seok ] A temporary suspension of program buy orders (buy-side “side car”) was triggered in the KOSPI market, which was rising by around 4% on the back of a recovery in investor sentiment driven by artificial intelligence (AI).

Major indices are displayed on an electronic board in the Hana Bank dealing room in Jung-gu, Seoul, on the 27th. (Photo = Newsis)

According to the Korea Exchange on the 27th, the buy-side car was triggered around 10:13 a.m. due to fluctuations in the KOSPI 200 futures index. This marks the 53rd time this year, and it was triggered again for the first time in four trading days since the 21st. At the time of activation, the KOSPI 200 futures index stood at 893.02, up 43.00 points (5.05%) from the previous day’s closing price.
The KOSPI buy-side sidecar is triggered when the KOSPI 200 futures price rises by 5% or more from the benchmark price and remains at that level for one minute. It remains in effect for five minutes from the time of activation and is automatically deactivated after five minutes. The KOSPI index rose as high as 5,720.71 during the session.
SamsungElectronics(005930), a leading semiconductor stock, is up 5.05%, while SK hynix(000660)is up around 7.06%.

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