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StocksHigh Impact•6 March 2026•

1 min read

South Korea's KOSPI Plunges 20% Amid Energy Crisis and Tech Sector Deleveraging

Orange and yellow image with a red downward arrow graph. Text: 'GEM DIAMONDS', 'COMMODITY PRICE DROP', '-7.78%', '-5.00%'. Features diamonds, mining equipment, financial icons, oil barrels, and an Eth

Key Facts

1The KOSPI index crashed 20% within a two-day period.

The South Korean stock market experienced a historic downturn as the KOSPI index crashed by 20% within a two-day trading window. This massive sell-off was primarily triggered by surging LNG prices, which severely compressed profit margins for energy-dependent industries. Major technology leaders, including Samsung Electronics and SK hynix, faced intense pressure leading to forced deleveraging and widespread margin calls. Analysts point to a toxic combination of high energy import costs and excessive market leverage as the main drivers behind the collapse. The crisis raises significant concerns regarding systemic risks and potential disruptions to the global semiconductor and AI hardware supply chains. Market participants are now bracing for further volatility as the impact of the energy shock ripples through the broader regional economy.