South Korean stocks finished slightly lower Tuesday as foreign investors took profit despite overnight gains on Wall Street. The Korean won rose against the US dollar. The benchmark Korea Composite Stock Price Index fell 6.42 points, or 0.24 percent, to 2,623.02. Trade volume was moderate at 316 million shares worth 9.43 trillion won ($6.84 billion). Winners, however, outpaced losers 671 to 403. Foreign investors sold a net 288.8 billion won, while institutions and individuals combined bought a