US STOCKS-Wall St edges up on ECB hopes, but IBM weighs By: Reuters: Company News January 21, 2015 at 10:09 AM EST * Indexes: Dow down 0.1 pct, S&P up 0.2 pct, Nasdaq up 0.1 pct (Updates to open of U.S. trading) Read More >> Related Stocks: Halliburton Co International Business Machines Marathon Oil Netflix Qualcomm, Inc. UnitedHealth Group