US STOCKS-Wall St posts gains for 4th week; ends flat for day By: Reuters: Company News November 14, 2014 at 16:54 PM EST * Indexes: Dow off 0.1 pct, S&P up 0.02 pct, Nasdaq up 0.2 pct (Updates to close) Read More >> Related Stocks: Biogen Idec Gilead Sciences