South Korean stocks opened marginally higher Friday as investor sentiment was buoyed by moderate US consumer price data. The benchmark Korea Composite Stock Price Index rose 12.23 points, or 0.47 percent, to 2,613.79 in the first 15 minutes of trading. The US July consumer price index rose 3.2 percent, slower than the market expectation of a 3.3 percent rise. On Wall Street, stocks finished slightly higher, with the ...