A buy-side circuit breaker was triggered amid a sharp surge in the KOSPI and KOSDAQ, and Samsung Electronics rose 7%.

2026On the 7th, in a trading session in 10the KOSPI closed at 7,475.94, up 2.52%, and the surge triggered a buy-side circuit breaker, restricting investors’ trading.

A buy-side circuit breaker was also triggered in the KOSDAQ, and at one point intraday the KOSPI surged by over 5% and the KOSDAQ by over 6%. The triggers continued several times intraday.

Samsung Electronics rose as much as 7% intraday, and as a result semiconductor-related stocks broadly strengthened. Gains centered on large-cap stocks drove the index higher.

The exchange applied a buy-side circuit breaker under its trading rules, and the measure restricted the execution of buy orders in some stocks. The fact that it was triggered was confirmed in an intraday disclosure.

Toward the end of the session, buying pressure weakened somewhat, and there was a stretch in which gains narrowed. As a result, it was a session in which price volatility widened during some time periods.

2026year 7month 11day, a report referred to a case in which it had correctly called a past index decline and suggested the possibility of KOSPI reaching a rebound level. The report also told investors that volatility management would be needed going forward.11,000.

Disclosures related to trading and the market opening at the next trading day remained a focus for investors. Related disclosures and exchange notices should be checked.