South Korea's KOSPI Just Had its Worst Crash Ever - Is the S&P 500 In Trouble?

"The KOSPI's collapse did not come out of nowhere. The index had surged from near 2,400 in early April 2025 to more than 6,000 before the recent selloff, a staggering run that left valuations stretched across much of the index. When a market more than doubles in under a year, it does not need a catastrophic catalyst to fall hard. It just needs a reason to stop going up."

"South Korean equities are particularly exposed to geopolitical risk given the country's heavy reliance on global trade, semiconductor exports, and energy imports. A prolonged conflict that disrupts oil supply chains hits Korea harder than most."

"EWY dropped 8.45% over the past week, falling from $144.55 to $132.34. That said, the longer view tells a different story. EWY is still up 36.12% year to date and up 149.17% over the past year, which underscores just how extreme the prior run-up was."

South Korea's KOSPI index experienced a dramatic 12% single-day collapse, with the iShares MSCI South Korea ETF (EWY) falling 10.3%. This crash followed an extraordinary surge from 2,400 to over 6,000 since April 2025, creating stretched valuations across the market. The selloff was triggered by escalating Iran conflict concerns affecting Asian markets broadly. South Korean equities face particular vulnerability due to heavy reliance on global trade, semiconductor exports, and energy imports. Despite the crash, EWY remains up 36.12% year-to-date and 149.17% over the past year, suggesting some investors view the decline as a buying opportunity.

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