Wall Street flexed its muscle, beating back losses tied to more evidence of a slowing U.S. economy. By the close, stocks rallied for the seventh time in eight sessions. The S&P 500 creeping up to a new record close. A gain for the month of April means Wall Street is up 10 of the last 11 months. On the bright side: housing. Home prices in February - posting their strongest year-over-year rise in almost seven years, as measured by the closely-watched S&P/Case Shiller Index.