South Korean equities tumbled as escalating Middle East tensions and surging oil prices prompted investors to cut risk exposure. The KOSPI index declined sharply, with energy and export-heavy sectors bearing the brunt of the sell-off. South Korea's heavy reliance on oil imports makes it particularly vulnerable to price spikes, with energy costs directly impacting corporate margins and consumer spending.

Rising crude prices following Iran war concerns have amplified market volatility across Asia. Investors are reassessing exposure to emerging markets as geopolitical risks mount. Oil prices jumped to multi-month highs, with Brent crude briefly topping $90 per barrel, adding pressure on economies dependent on energy imports like South Korea.

The sell-off reflects broader market anxiety about stagflation risks as higher energy costs threaten to slow global growth while fueling inflation. South Korean exporters face a double challenge: weaker demand from key markets and rising input costs. The won also weakened against the dollar, further complicating the outlook for companies with dollar-denominated debt.