Stocks moved out to a healthy start Wednesday, rising in soft volume ahead of this afternoon’s Fed policy announcement. The Dow Jones industrial average and the S&P 500 each pecked out 0.2% gains. The Nasdaq rose 0.3%. Volume was down a bit more than 15% on both the Nasdaq and the NYSE, compared to trade at the same time Tuesday. The Federal Reserve’s policy announcement at 2 p.m.