U.S. stock index futures pointed to a flat to lower open on Thursday, as investors started the countdown to Friday's jobs report, while digesting the economic data of the week so far.
Ahead of the opening bell, weekly jobless claims came in at 278,000. Revised fourth-quarter productivity declined 2.2 percent, while unit labor costs rose 3.3 percent.
The key data for the day is the ISM non-manufacturing survey for February due at 10 a.m. ET. The figure is expected at 53, down from 53.5 in January.