Wall St rally for 4th-straight weekDowSP 500 at new highs

U.S. stocks closed out the week on strong gains, with the Dow and S&P 500 reaching new highs and all three major averages gaining for fourth-straight week on encouraging economic reports. Dow Jones Industrial Average added 121.18 points, or 0.80 per cent, to close at 15,354.40. S&P 500 rose 17 points, or 1.03 per cent to 1,667.47. All key S&P sectors finished in positive territory ...