By Rodrigo Campos
NEW YORK (Reuters) - U.S. stocks were set to dip at the open on Friday, setting indexes up for a full week of daily declines, as the dollar index added to the previous session's rebound ahead of a speech by Federal Reserve Chair Janet Yellen.
Yellen will speak on monetary policy at 3:45 p.m. EDT in San Francisco, and traders will keep an ear out for clues on the timing of the start of the tightening path at the Fed.
Equities have traded in lockstep with the U.S. currency of late ahead of the start of earnings season, as traders gauge how much the greenback's strength will hurt corporations' bottom lines.
"Yellen will be the big news of the day, certainly, so I don't expect a lot of movement before that," said Peter Jankovskis, co-chief investment officer at OakBrook Investments LLC in Lisle, Illinois.
"We'll see how people interpret what she has to say."
S&P 500 e-mini futures
The final reading on gross domestic product for the last quarter of 2014 came in unchanged from the previous forecast, at a 2.2 percent rate of expansion. After-tax corporate profits fell at a 1.6 percent rate in the fourth quarter as a strong dollar dented the earnings of multinationals.
The University of Michigan final March consumer sentiment reading is due at 10 a.m. EDT.
Dow Chemical shares
BlackBerry
(Reporting by Rodrigo Campos; Editing by Chizu Nomiyama and Nick Zieminski)