South Korean stocks closed 0.88 percent down Tuesday as Italy\'s high borrowing costs underpinned nagging concerns about the eurozone debt crisis, analysts said. The local currency fell against the U.S. dollar. The benchmark Korea Composite Stock Price Index (KOSPI) declined 16.69 points to close at 1,886.12, snapping the second straight session of gains. Trading volume was moderate at 355.8 million shares worth 4.74 trillion won (US$4.21 billion) with losers outpacing gainers 543 to 280.