US STOCKS-Wall St set to open flat as traders count down to Yellen
* Yellen due to speak at 10:00 a.m. ET
* Q2 GDP grows by 1.1 pct vs prior estimate of 1.2 pct
* Herbalife drops on report of Icahn's planned stake sale
* Futures down: Dow 43 pts, S&P 0.5 pts, Nasdaq 3.75 pts (Adds details, comments, updates prices)
By Yashaswini Swamynathan
Aug 26 (Reuters) - Wall Street was set to open flat on Friday ahead of Federal Reserve Chair Janet Yellen's speech, with investors hoping for a clearer picture on the timing of the next interest rate hike.
Yellen speaks before a gathering of global central bankers in Jackson Hole, Wyoming, at 10:00 a.m. ET (1400 GMT).
Her language will be carefully scrutinized, especially after an increasing number Fed policymakers have pushed the case for raising rates by pointing at improving employment and inflation rates.
The markets have been on tenterhooks all of this week in the run-up to Yellen's speech. Wall Street has dropped about 0.5 percent since Monday, its steepest weekly decline since the Brexit-induced selloff in June. Continuación...