Korea KOSPI KOSDAQ dual circuit breaker first time 15 Oct 2026
Both Korean markets hit circuit breakers in one session for the first time, on 15 October 2026.
01/06Korea's two markets hit circuit breakers the same day KOSPI fell 7.57% to 5,500 and KOSDAQ triggered its own breaker on 15 Oct 2026 — the first time both have done it in one session. - 02/06
What a circuit breaker actually does When an index drops past a set threshold, trading halts for a fixed period. The pause is meant to stop panic selling from cascading. - 03/06
Before 15 Oct 2026 Each market's breaker triggered on separate days ✕15 Oct 2026 KOSPI and KOSDAQ both triggered in one session Fact Never before in KOSPI history Each market has had its own breakers before. This is the first time both fired in the same trading day. 7.57% 04/06KOSPI single-day fall, 15 Oct 2026 The day's worst number KOSPI closed at the 5,500 level after the drop. - 05/06
What else moved that day US inflation shock hit Asian equities Won-dollar exchange rate broke 1,350 Asia and global ETFs carry Korean stock exposure
A US inflation shock hit Asian equities. The won-dollar rate also broke 1,350. - 06/06
Bottom line ' Check your Asia or global ETF's top holdings for Korean exposure. Your EPF is a separate pooled fund; one country's move won't change your balance.
Questions people ask
What is a stock market circuit breaker?
A circuit breaker halts trading when an index falls past a set threshold. The pause is meant to stop panic selling from cascading. Both KOSPI and KOSDAQ have their own breakers.
Does a Korean stock market crash affect my EPF?
No. Your EPF dividend is set once a year based on the fund's entire portfolio. One country's single-day move does not change your EPF account balance.
What caused the KOSPI crash on 15 October 2026?
A US inflation shock hit Asian equity markets, pushing KOSPI down 7.57% to 5,500. The won-dollar rate also broke 1,350 the same day.
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