Traders work at the New York Stock Exchange in New York, the United States, March 20, 2019. U.S. stocks ended mixed on Wednesday. The Dow fell 0.55 percent to 25,745.67, and the S&P 500 was down 0.29 percent to 2,824.23, while the Nasdaq was up 0.07 percent to 7,728.97. (Xinhua/Wang Ying)