Stocks declined yesterday on the Athens Stock Exchange (ASE), in concert with other European markets. The ASE compound share index closed at 4,137.97 points, a drop of 16.47 points or 0.40 percent. The FTSE/ASE 20 index of blue chips declined 0.45 percent to close at 2,274.15 points, while mid-caps and small-caps declined 0.61 percent and 0.79 percent respectively. The FTSE/Athex International declined 0.49 percent, closing at 5,935.20 points. Among blue chips, the biggest gainers were refiner Hellenic Petroleum (up 1.79 percent to 10.26 euros), betting firm OPAP (1.42 percent to 28.50 euros) and bottler Coca-Cola HBC (1.26 percent to 25.70 euros). The biggest losers were cement maker Titan (down 3.08 percent to 39.64 euros), technology holding company Intracom (2.55 percent to 5.34 euros) and mobile telecommunications service provider Cosmote (1.52 percent to 19.50 euros). Of 309 stocks traded, 77 gained, 193 declined and 39 ended unchanged. Turnover reached 278.14 million euros, including 42.48 million in prearranged trades. The most heavily traded companies, by number of shares, were OTE (2,841,203), Lannet (2,409,192), ATEbank (1,204,249) and NEL Lines (1,198,347).