South Korea's benchmark KOSPI index jumped nearly 3 percent in early trading on Wednesday, rising to around 6,143 points as optimism grew over a potential second round of peace negotiations between the United States and Iran, following a first round that ended without agreement. The rally tracked overnight gains on Wall Street, where the Dow Jones rose 0.66 percent and the Nasdaq gained 1.96 percent, with major South Korean firms including Samsung Electronics, SK Hynix, and Hyundai Motor posting significant gains. The surge is notable given that the KOSPI has been under pressure since late February, when US and Israeli air strikes on Iran rattled regional markets, making any diplomatic progress between Washington and Tehran a closely watched indicator for investor confidence across Asia.