All the Greek banks are going to be nationalized, therefore it follows that these banks will go close to zero. As long as you can short go for it:
More madness from their political program:
SYRIZA’s 40-point program calls for a complete break with austerity: reversing wage cuts, guaranteed health care for the poor, strong labor regulations and unemployment insurance, housing for the homeless, among others. At the same time, it calls for increasing taxes on the rich and their luxury items, prohibiting speculative financial derivatives, eliminating the financial privileges of the shipping industry and Church, and nationalizing private banks and hospitals. In foreign policy, it calls for closing all foreign bases, getting out of NATO and ending military cooperation with Israel