By Tanya Agrawal
(Reuters) - U.S. stock index futures were higher on Friday, a day after the S&P 500 ended at an all-time high and ahead of Federal Reserve Chair Janet Yellen's take on the economy that investors will peruse for clues on the timing of a rate hike.
* Yellen's speech at 1:00 p.m. ET (1700 GMT) is expected to acknowledge the recent economic sluggishness, including near stagnant performance in the first few months of the year.
* Before Yellen takes the podium, data is expected to show that consumer prices rose for a third straight month in April, signaling a rise in inflation, which could keep the Fed on
track to raise rates. The Consumer Price Index data is due at 8:30 a.m. ET (1230 GMT).
* The S&P 500 <.SPX> ended at 2,130.82 on Thursday, barely beating its previous record close of 2,129.2 from Monday.
* While the Dow and the S&P are near record levels this week, trading has stayed in a narrow range and volumes have been subdued as the quarterly earnings season draws to a close.
* Aeropostale
* ELong
* Foot Locker
* BlackBerry
Futures snapshot at 7:24 a.m. ET (1124 GMT): * S&P 500 e-minis
(Reporting by Tanya Agrawal; Editing by Savio D'Souza)