US STOCKS-Wall St edges down but on track for 4th week of gains By: Reuters: Company News August 29, 2014 at 10:25 AM EDT * Indexes down: Dow 0.2 pct, S&P 0.1 pct, Nasdaq 0.1 pct (Updates to market open, adds economic data) Read More >> Related Stocks: Amazon.com Astrazeneca Plc ADR Google, Inc. Johnson & Johnson