Major stock indices on Wall Street closed with mixed results at the end of Friday's trading session.The S and P 500 index ended down 10.27 points, or 0.18 percent, closing at 5,703.37 points.The Nasdaq Composite fell 65.66 points, a decline of 0.36 percent, finishing at 17,948.32 points.In contrast, the Dow Jones Industrial Average rose by 37.62 points, or 0.09 percent, closing at 42,062.81 points.Source: Qatar News Agency