US STOCKS-Wall St edges up, on track for 4th week of gains By: Reuters: Company News August 29, 2014 at 11:52 AM EDT * Indexes down: Dow 0.2 pct, S&P 0.1 pct, Nasdaq 0.1 pct (Updates to midday trading) Read More >> Related Stocks: Astrazeneca Plc ADR Splunk Inc United Technologies