By Ryan Vlastelica
NEW YORK (Reuters) - U.S. stock index futures pointed to a flat open Monday after a decisive Greek election victory by the Syriza party spurred concern over fresh instability in the euro zone, though the possibility of Greece leaving the bloc was considered remote.
The leftist Syriza party looked set to take on Greece's international lenders, with leader Alexis Tsipras pledging to end five years of austerity and renegotiate Greece's debt agreements. Investors were concerned that potential conflicts with other euro zone governments could put more strain on the currency bloc.
While Greece is a relatively small economy that the United States has limited direct exposure to, extended volatility in the region could hurt multinational companies. Separately, if the euro continues to weaken against the dollar, that could be a headwind for earnings.
European shares <.FTEU3> were volatile after the election, falling as much as 0.4 percent before rising by 0.5 percent. They last traded up 0.2 percent. U.S.-listed shares of the National Bank of Greece
Last week's larger-than-expected stimulus program announced by the European Central Bank could offset some concerns over Greece. Hopes a compromise may be reached between Athens and its lenders, keeping Greece in the euro zone, may also support sentiment.
The German government said a third debt restructuring was out of the question for Greece, though it opened the door to a possible extension of the country's current bailout program.
In deal news, Rock-Tenn Co
AT&T Inc
D.R. Horton Inc
Ocwen Financial Corp
Investors await some key earnings reports, including those of Microsoft Corp
With 18 percent of S&P 500 companies having reported, 72.2 percent have topped earnings expectations, while 54.4 percent have beaten revenue forecasts, according to Thomson Reuters data. That compares with the long-term average of 63 percent for earnings and 61 percent for revenue.
Futures snapshot at 8:50 a.m.:
* S&P 500 e-minis
* Nasdaq 100 e-minis
* Dow e-minis <1YMc1> were up 8 points, or 0.05 percent, with 31,996 contracts changing hands.
(Editing by Bernadette Baum)