코스피 엿새째 하락 1,910선 내줘...코스닥은 2대 상승br br South Korea's main stock index, the KOSPI, closed lower for a sixth straight session on Wednesday on lingering worries over the U.S.-China trade dispute....with China's central bank fixing its yuan at a new 11-year low.br The KOSPI fell zero-point-four percent to 19-09, keeping near its 3-and-a-half-year low.br The tech-heavy KOSDAQ, however, continued to recover from its decline on Monday, adding almost 2-point-4 percent to close at just under 565.