[South Korea KOSPI Index Closes Up 5.12%, Hits Record High] According to Golden Finance, on May 4, South Korea's KOSPI Index closed up 5.12% at 6,936.99 points, setting a new all-time high. SK Hynix closed up 12.5%, reaching its highest closing price in history. Samsung Electronics closed up 5.44%, marking its highest closing record ever. (Cailian Press)