Stocks fell in higher volume Wednesday, dragged down by disappointing earnings reports from market heavyweights Apple (AAPL) and Microsoft (MSFT). The Nasdaq lost 0.8%, the Dow Jones industrial average slid 0.5% and the S&P 500 slipped 0.3%. Volume was higher across the board, rising 19% on the Nasdaq and 8% on the NYSE compared to Tuesday, according to preliminary data.