Asian markets in freefall: South Korea’s Kospi, Kosdaq slump 12%, trigger circuit breakers on US-Iran war jitters by Live mint | March 4, 2026 11:06 am | Indian Stocks, Market, News The Kospi dropped 12.6% to 5,065.14 in early afternoon trade. The Korea Exchange temporarily halted trading for the Kospi index, while a circuit breaker was activated on the Kosdaq as well, which declined about 13%.