South Korean stocks turned lower on profit-taking after opening higher Tuesday, as concerns over rising bond yields at multidecade highs weighed on investor sentiment. After opening 0.58 percent higher, the benchmark Korea Composite Stock Price Index fell 8.14 points, or 0.12 percent, to 6,995.60 as of 9:15 a.m. Investors are now turning their attention to upcoming corporate earnings, although higher interest rates, elevated energy costs and renewed inflation worries are pushing up global bond yields.