South Korean stocks opened higher on Tuesday, with the benchmark Korea Composite Stock Price Index (KOSPI) rising 189.18 points, or 3.46%, to 5,658.65, boosted by overnight gains on Wall Street, optimism about artificial intelligence, and falling oil prices. Overnight, the Dow Jones Industrial Average rose 0.28%, the S&P 500 gained 0.7%, and the technology-heavy Nasdaq Composite Index advanced 0.82%.