South Korean stocks closed almost flat Wednesday as investors sat on the sidelines amid rising economic uncertainties from abroad, analysts said. The Korean won closed higher against the U.S. dollar. The benchmark Korea Composite Stock Price Index (KOSPI) shed 0.48 points, or 0.02 percent, to 1,958.96. Trading volume was low at 213 million shares worth 4.27 trillion won (US$4.01 billion) with gainers outpacing losers 453 to 346.