U.S. stocks finished modestly ahead on Monday after the first weekly gain for equities in 2015, as investors mulled results from Greek elections and winter weather on the East Coast.
In Greece, the anti-austerity Syriza party won 149 out of a 300 possible seats in Parliament.
The market had "already discounted an anti-austerity vote, and the lower euro should boost manufacturing and exports," Peter Cardillo, chief market economist, Rockwell Global Capital, said.
"Investors are bracing for a potentially historic northeast blizzard and the FOMC meeting this week," Cardillo said.
In New York, officials urged residents to remain indoors with blizzard conditions forecast. The New York Stock Exchange said it planned to run on a normal schedule.
DR Horton rose after the home builder reported quarterly profit that topped estimates; Mattel declined after the toy maker ousted its chairman and chief executive and warned sales fell 6 percent in the holiday quarter.