February 20, 2021MNAInternationalU.S. stocks close mixedBy Xinhua News AgencyU.S. stocks ended mixed on Friday.The Dow rose 0.0031 percent to 31,494.32, the S&P 500 decreased 0.19 percent to 3,906.71, and the Nasdaq was up 0.07 percent to 13,874.46.