U.S. stock-index futures pointed to a higher open on Tuesday, with trading to resume after a holiday weekend and as Wall Street considers earnings from companies including Verizon Communications.
Shares of jumped in premarket trading on news Dan Loeb's Third Point had in the company, and was calling for a strategic review.
Verizon rose after the telecommunications company tallied fourth-quarter profit that topped expectations.
Verizon's earnings were of particular interest after it announced plans to purchase 's media division, which develops cloud TV products and services. The deal is expected to be completed early in the first quarter of 2014.
Other companies reporting earnings Tuesday include Johnson & Johnson, Texas Instruments and . In total, about one quarter of companies will unveil earnings this week, following Monday's Martin Luther King holiday.
Elsewhere, Unilever, the Anglo-Dutch maker of goods including Ben & Jerry's ice cream and Lipton tea, reported better-than-anticipated 2013 results on Tuesday, with an improved performance in the emerging markets. Shares were higher by over 5 percent in early trade.
(Read more: Unilever profit beats, shares jump 5%)
No major macroeconomic data is expected on Tuesday. Global leaders will start arriving in , Switzerland for the annual meeting of the World Economic Forum, including Treasury Secretary Jacob Lew, the United Nation's Ban-Ki Moon and the International Monetary Fund's Christine Lagarde.
—By CNBC's Katy Barnato