South Korea’s KOSPI Index Crash Triggers Circuit Breaker After Plunging Over 8%

Published by

Nidhi Kolhapur

June 26, 2026

Korean Stock Market Crash KOSPI Plunges 7% Amid U.S.–Israel Iran War

South Korea’s KOSPI index dropped more than 8%, triggering circuit breakers that halted trading for 20 minutes and temporarily suspended program selling on the Korea Exchange. More than ₩366 trillion ($246 billion) in market value was erased, while Samsung Electronics and SK Hynix each fell about 9%. Foreign investors sold 2.5 trillion won ($1.6 billion) in early trading amid weaker sentiment toward AI-related stocks. Markets will watch whether volatility eases when trading resumes.

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