Equities have been on a tear lately, with the S&P 500 recently climbing for eight straight sessions, extending its rise in January to 5.1 percent. The index hovered around 1,500, suggesting there was still support for a market that has been hovering around five-year highs.

"A move like this in one month is extraordinary, and keeping the gains going will depend on concrete news like earnings and data that show the economy is getting better," said Peter Tuz, president of Chase Investment Counsel in Charlottesville, Virginia. "We haven't seen enough of that to make people jump in after the rally we've had."