South Korean stocks closed almost flat Thursday amid a mixed outlook for the upcoming European Central Bank (ECB)'s meeting, with investors divided over whether it will opt for monetary easing, analysts said. The South Korean won traded lower against the U.S. dollar. The benchmark Korea Composite Stock Price Index (KOSPI) moved up 3.55 points, or 0.18 percent, to 1,933.70. Trading volume was low at 220.6 million shares worth 4.13 trillion won (US$3.91 billion), with losers outpacing gainers 487 to 290.