A trader works at the New York Stock Exchange in New York, the United States, on Oct. 30, 2019. U.S. stocks ended higher on Wednesday. The Dow rose 0.43 percent to 27,186.69, the S&P 500 increased 0.33 percent to 3,046.77, and the Nasdaq climbed 0.33 percent to 8,303.98. (Xinhua/Wang Ying)