US STOCK-Wall St to open flat as investors seek clues on rates
* Apple to launch iPhone 7 later on Wednesday
* Retrophin jumps after kidney drug succeeds in mid-stage study Chipotle rises after Pershing Square takes stake
* Futures: Dow down 9 pts, S&P down 3 pts, Nasdaq up 2.5 pts (Adds details, comments, updates prices)
By Yashaswini Swamynathan
Sept 7 (Reuters) - Wall Street was set to open little changed on Wednesday as investors sought more clues on the timing of the next interest rate hike.
A number of U.S. Federal Reserve officials have recently hinted at a potential interest rate hike in the near term. However, a set of weak economic data suggests that the economy may not yet be ready for such a move.
The Fed is scheduled to release its Beige Book - a summary of commentary on economic conditions - later in the day that will be parsed by investors for rate-hike clues.
"We've had three to four pieces of relatively disappointing economic data, so that puts some focus on today's Beige Book," said Art Hogan, managing director of Wunderlich Equity Capital Markets.
The markets are going to be in a wait-and-see mode until the Fed comes to some consensus of a rate hike in December, Hogan said. Continuación...