The benchmark KOSPI rose 2.74% to close at 5,968 on Tuesday, rebounding sharply to its highest level since late February, amid renewed US–Iran talks hopes and strength in technology and AI-related stocks. Investor sentiment improved after both the US and Iran showed openness to re-engage despite the recent breakdown in talks and continued military tensions, easing fears of a prolonged disruption in global energy supply. Oil prices pulled back from recent highs, relieving inflation concerns and supporting the outlook for energy-importing economies such as South Korea. At the same time, gains tracked a broader rally in global equities after Wall Street advanced to fresh highs, with technology and AI-related shares leading the rise. Notable gains were seen in Samsung Electronics (2.74%) and SK hynix (5.87%), alongside Hyundai Motor (2.72%), SK Square (10.34%), Kia Corporation (1.42%), and HD Hyundai Heavy Industries (3.35%).