Buying in banks sent Greek equities 2.66 percent higher on Tuesday with most eyes on the crucial midterm plan set to be voted upon in Parliament on Wednesday.
The Athens bourse?s benchmark general index ended at 1,258.84 points, after touching on a session high of 1,262 points.
The blue chip FTSE/ATHEX 20 index added 3.26 percent to end at 567.09 points.
Banks outperformed, adding 4.87 percent. National Bank jumped 5.38 percent to 4.90 euros and Eurobank EFG climbed 5.84 percent to 3.26 euros.
Hellenic Postbank (TT), a state-controlled lender that will feature in the state?s privatization agenda, soared 10 percent to 2.86 euros while peer Alpha ended at 3.42 euros, up 4.27 percent for the day.
Construction companies Ellaktor and GEK Terna also performed well, shooting up 10.65 percent (to 2.39 euros) and 10.80 percent (to 1.95 euros) respectively.
Hellenic Petroleum, which said that a two-day strike in Greece has had an ?insignificant? impact on production at its refineries, advanced 2.69 percent to 6.50 euros.
Among the losers ranked jewelry retailer Folli Follie, which dropped 1.06 percent to 9.30 euros, and Alapis, which tumbled 6.12 percent to 0.46 euros.
Turnover reached 84.1 million euros versus 56 million euros in the previous session.