South Korean stocks opened sharply higher Tuesday, with technology heavyweights leading gains after the tech-heavy Nasdaq Composite reached a record close. The Korea Composite Stock Price Index rose 141.58 points, or 2.02%, to 7,149.3 as of 9:15 a.m. The move followed a rally in U.S. equities on Monday, when the Nasdaq Composite gained 2.3% and the S&P 500 rose 1.5%. Investor sentiment was supported by renewed hopes for artificial intelligence, along with declines in global oil prices and bond yields.