U.S. stocks close mixed as investors monitor trade talks

NEW YORK, June 9 (Xinhua) -- U.S. stocks ended mixed on Monday, as investors looked ahead to a key round of China-U.S. trade negotiations.

The Dow Jones Industrial Average edged down 1.11 points to 42,761.76. The S&P 500 added 5.52 points, or 0.09 percent, to 6,005.88. The Nasdaq Composite Index increased by 61.28 points, or 0.31 percent, to 19,591.24.