US STOCKS-Wall St edges lower, S&P down for third straight session By: Reuters: Company News September 23, 2014 at 13:25 PM EDT * Indexes: Dow off 0.5 pct, S&P 0.4 pct, Nasdaq down 0.3 pct Read More >> Related Stocks: Apple Bank of America CarMax Grupo Aval Acciones Y Valores S ADR Rite Aid Corp Siriusxm Holdings Inc Yahoo