Stocks turned lower around midday Wednesday in the first day of trading after Superstorm Sandy shut down Wall Street for two days. The Dow Jones industrial was down a fraction after earlier rising 0.4%. The S&P 500 fell 0.1%, giving up a 0.2% gain. The Nasdaq lost 0.4%. Volume was up 2% on the Nasdaq and 16% on the NYSE compared with the same time Friday. EBay (EBAY) slumped 2% in triple its average daily volume amid concerns that Sandy could