KOSPI Crash in October 2026: Why South Korea’s Stock Market Is Falling and What Investors Should Watch
South Korea’s stock market experienced a dramatic sell-off between October 12 and October 15, 2026. What initially looked like a market correction quickly developed into a broader crisis of investor confidence. The benchmark KOSPI index fell sharply over several consecutive trading sessions, with losses accelerating as foreign investors continued selling Korean shares. The most dramatic session came on Thursday, October 15, when the KOSPI plunged 7.57%, closing at 5,554.22. The index briefly fell as much as 9.29% during the session, triggering a circuit breaker that halted trading for 20 minutes. The index had declined for seven consecutive sessions, losing approximately 21% over that period, according to a report published by Aju Press. Here are the key figures investors should know: October 12: The KOSPI fell 3.65% to 6,384.24. October 13: The sell-off intensified, with the index falling sharply amid semiconductor concerns. October 15: The KOSPI plunged 7.57% to 5,554.22. October ...
