Markets
March 4, 2026
The KOSPI crash pushed South Korea’s benchmark index to its worst two-day performance since 2008, with the index falling as much as 6.1% on Wednesday following a 7.2% drop the session before. The Korea stock market crash was led by the same stocks that had driven the rally, like Samsung Electronics, SK Hynix, and Hyundai Motor. Iran war impact fears triggered a wave of panic selling, and the combined two-day loss reached roughly 11%. Circuit breakers were activated on both the KOSPI and KOSDAQ, halting trade for 20 minutes.
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KOSPI Crash and Korea Stock Market Fallout From Iran War Impact
Samsung and SK Hynix Lead the Decline
The Samsung stock crash and SK Hynix selloff were at the core of Wednesday’s session. Samsung fell around 9.88% while SK Hynix dropped 11.50%, based on KRX screen data. Both had been the biggest drivers of the KOSPI’s rise over the past year, and both were hit the hardest when sentiment flipped. The won weakened to 1,466.35 against the dollar, adding pressure for foreign investors holding Korean assets right now.
Iran War Impact and the Scale of the Selloff
The Iran war impact rattled risk appetite across Asia, and South Korea, as a heavily export-driven economy, absorbed the shock hard. The KOSPI crash erased months of gains in just two sessions. Foreign investors were net sellers throughout the day, and the Korea stock market crash left local institutions and retail traders with few places to hide. The SK Hynix selloff alone wiped out significant market cap from the index.
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What Comes Next for the KOSPI
The KOSPI crash has pushed the index firmly into correction territory. Whether the Korea stock market crash deepens from here depends on how geopolitical tensions evolve and whether buyers step back in at current levels. Right now, confidence is shaken.
