After three consecutive sessions of advances U.S. equities declined on Friday, as concerns among investors were renewed by some worse-than-expected data releases and by the persisting debt problems in Europe. Dow Jones industrial average plunged 132 points, or 1%, the S&P 500 slipped 14 points, or 1%, and the Nasdaq erased 35 points, or 1.2%. Financial companies were among the biggest losers, with Bank of America weighing the most on the Dow. JPMorgan Chase, Citigroup and Morgan Stanley also dropped, losing between 1% and 3%.