The benchmark KOSPI fell nearly 1% to around 5,805 on Monday, reversing from the previous session, as rising geopolitical tensions and higher oil prices weighed on sentiment. Markets retreated after US–Iran talks collapsed without an agreement. Washington then moved to impose a naval blockade on Iranian ports, raising fears of prolonged conflict and disruptions to global energy supply. Crude prices climbed above $100 per barrel, intensifying concerns over inflation and slower global growth, with South Korea particularly exposed due to its heavy reliance on energy imports. Foreign investors led the selling, dragging down large-cap stocks and reinforcing the index’s decline. Investors reduced exposure to export-oriented and cyclical sectors amid heightened uncertainty. Losses were seen across major stocks, including Samsung Electronics (-2.2%), Hyundai Motor (-1.5%), LG Energy Solution (-1.0%), Doosan Enerbility (-2.0%), and KB Financial Group (-0.8%).
