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15/10/2026 14:47

South Korea's KOSPI index once halted trading, closed down over 7%, financial regulators hold emergency meeting, Japan stocks close down 4.9%

The Economic Information Agency reported on the 15th that stock markets in Japan and South Korea both plunged sharply on Thursday. South Korea's KOSPI Composite Stock Price Index plunged as much as 9% during the session, triggering the circuit breaker mechanism and suspending trading for 20 minutes—the tenth time this year that the KOSPI has triggered the circuit breaker mechanism. The KOSPI index closed down 454.59 points at 5554.22, with the full-day decline narrowing to 7.57%.

Japan's Nikkei 225 index closed down 3318.17 points at 64425.9, a decline of 4.9% at closing. The number of points dropped is the third largest in Japanese history.

South Korea's financial regulatory authorities held an emergency meeting regarding the stock market and issued a statement calling for proactive measures to ensure market stability and investor protection.

The statement also urged financial institutions to avoid excessive credit expansion, strengthen investor protection and risk management; and pledged strict actions against market-disturbing behaviors, with emergency contingency plans ready if necessary.

South Korea's two major memory giants saw sharp share price declines on Thursday, with Samsung Electronics at one point falling over 11%, closing down 9.48%. SK Hynix at one point plunged more than 12%, hitting its lowest level since April 27, with the closing decline narrowing to 11%.

Analysts pointed out that recent financing bottlenecks in artificial intelligence (AI) infrastructure investment, coupled with continued weakness in U.S. technology and semiconductor stocks, have collectively impacted South Korea's semiconductor sector in the stock market. (yc)
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