The economy just exited a recession and we’re in a sub-par recovery, so the markets are "entitled to a rest after the big gain," said Bob Doll, vice chairman and global chief investment officer of equities at BlackRock.

“The first stage of the recovery off of a major bear market low is pretty broad and robust, and eventually moves into an earnings-driven phase that is usually more ragged...and perhaps that’s where we’re entering,” Doll told CNBC.