US STOCKS-Wall Street flat, with all eyes on Fed
* Yellen to speak on monetary policy on Friday
* Express Inc plunges after slashing forecast
* Dow down 0.11 pct, S&P down 0.09 pct, Nasdaq flat (Updates to open)
By Yashaswini Swamynathan
Aug 24 (Reuters) - Wall Street was little changed on Wednesday morning as investors played a waiting game ahead of Federal Reserve Chair Janet Yellen's speech on Friday for clues on the timing of an interest rate hike.
Yellen's keynote speech will be the main focus of a meeting of global central bankers in Jackson Hole, Wyoming. The meet, which starts Thursday, has traditionally been used by Fed chiefs as a platform to signal the direction of monetary policy.
Recent hawkish comments from some Fed officials, including Vice Chairman Stanley Fischer, have raised expectations that Yellen might signal the possibility of a hike in September.
Wall Street has been on a record-setting run due to continued expectations for low rates, coupled with upbeat corporate earnings and strong economic data.
But, trading volumes have been below average in the past few sessions as the earnings season winds down and as traders avoid major bets ahead of a firmer handle on monetary policy. Continuación...