Greek stocks plunged more than 2 percent yesterday, as losses on foreign bourses fueled selling pressure, particularly in bank shares. The Athens bourse’s benchmark general index ended 2.06 percent lower at 2,593.43 points, racking up losses of 0.69 percent for the week. The blue chip FTSE/ATHEX 20 index dropped 2.49 percent to 1,372.44 points. Banks, recent outperformers in the market, gave up 3.65 percent. National Bank plummeted 4.81 percent to 23.56 euros and Bank of Piraeus shed 4.21 percent to 11.83 euros. Betting company OPAP was among the few blue chip winners, gaining 1.64 percent to 17.38 euros. Turnover reached 252.6 million euros versus 228 million euros in the previous session.