Greek stocks finished the week in the red as investors chipped away at recent gains in banks, dragging the sector more than 2.5 percent lower. The Athens bourse’s benchmark general index eased 0.16 percent to 2,540.40 points, bringing gains in the last week to 2.44 percent. The blue chip FTSE/ATHEX 20 index retreated 2.68 percent to 1,343.23 points. Banks, which unveiled first-half earnings this week, dipped 2.68 percent. Alpha Bank fell 2.76 percent to 12 euros, bringing gains in the last month to just over 32 percent. Eurobank tumbled 5.92 percent to 10.18 euros. On the upside, betting company OPAP soared 6.01 percent to 17.28 euros. Turnover eased to 268.7 million euros versus 306 million in the previous session.