US STOCKS-Wall St edges higher as investors await earnings By: Reuters: Company News April 08, 2011 at 10:00 AM EDT * Investors bullish about earnings, but volume seen weak Read More >> Related Stocks: Alcoa Cvr Energy Inc Google, Inc. JPMorgan Chase & Co OPTI Canada Occidental Petroleum Seagate Technology Plc Standard & Poors 500 State Street Corp