With apparent settlement ahead for the monthslong tension between Russia and Ukraine, investors will keep an eye on oil and further developments in Greece ahead of expected announcements on Monday.
"Don't worry about Greece," said Douglas Cote, chief market strategist at Voya Investment Management. "They're going to pay their bills (and) institute structural form. They're trying to change things but they can't." He pointed out that the country, which is trying to extend the terms of its bailout program with the euro zone, makes up just 2 percent of the union.
Headlines pointing towards some kind of deal that will keep Greece in the euro zone continues to trickle out of Brussels, although no official news is expected before Monday.