South Korea Stocks Crash 6% – First Trading Halt in Months as War Fears Slam Supply Chains

South Korea’s main stock index plunged more than 6% on Tuesday, triggering an automatic sell-side sidecar halt for the first time in months, as the prolonged Middle East crisis hit export-dependent economies. The government has promised immediate action to stabilize supply chains and financial markets [149909].

The Kospi index’s sharp fall was driven by growing fears that the prolonged conflict in the Middle East will disrupt global trade and energy supplies, hitting export-dependent economies like South Korea especially hard. Finance Minister Choi Sang-mok said the government will deploy all available measures to protect domestic industries and financial markets from further shocks [149909].

Analysts say South Korea, which relies heavily on imported oil and gas from the region, remains vulnerable to any escalation. The sell-side sidecar—a temporary pause in program trading designed to prevent a market freefall—was activated for the first time in months, underscoring investor panic [149909].

The crash in Seoul came as major U.S. stock indexes closed at all-time highs on Tuesday, with the S&P 500 rising 0.77%, the Dow Jones Industrial Average adding 0.75%, and the Nasdaq Composite climbing 0.88% [149603]. Wall Street has shrugged off war, inflation, and trade chaos—consumer confidence is falling, but stock prices keep rising [148887].

European stock markets also closed higher on Tuesday, following rising expectations that President Trump’s visit to China could help build positive momentum toward peace between Washington and Tehran [148411]. However, analysts warn the market is sending two opposite messages at once: while stock investors bet on huge profits from the conflict, bond investors are selling out of fear of long-term economic damage [143201].