Greek stocks advanced 0.80 percent yesterday, boosted by bank gains, as investors reflected upon first-quarter earnings figures. The Athens bourse’s benchmark general index ended at 2,327.47 points, lifting gains for the month to 13 percent. The blue chip FTSE/ATHEX 20 index advanced 1.67 percent to 1,213.64 points. Bank of Cyprus soared 18.53 percent to 5.50 euros, after announcing earnings figures at the top end of market expectations on Thursday. Eurobank, whose first-quarter core profits on Thursday failed to meet expectations, added 3.69 percent to 8.15 euros. The mid-cap FTSE/ATHEX 40 index retreated 0.56 percent and the small-cap FTSE/ATHEX 80 index fell 1.56 percent. Turnover reached 433.4 million euros versus 214.5 million on the previous session.