South Korea's benchmark Kospi swung sharply Friday, opening at a record high and climbing above 6,750 points for the first time, before turning course and going lower in the afternoon as foreign and institutional investors stepped up profit-taking. As of 2 p.m., the index was hovering around 6,613 points, down 1.1 percent from the previous close. The Kospi had opened at a fresh high of 6,739.39 and climbed as high as 6,750.27, marking an all-time intraday peak. The retreat followed a mixed sessi