On a day with a low level of transactions and virtually no corporate news, Greek stocks posted a small decline yesterday, bringing to a conclusion a second straight week of losses. The Athens Exchange (ATHEX) general index fell to 1,663.39 points yesterday, dropping by 0.46 percent from Thursday’s closure. The blue chip FTSE/ATHEX 20 index contracted by 0.39 percent to 852.57 points. Outperforming among blue chips were Marfin Investment Group (up 3.42 percent), Viohalco (2.99 percent) and Public Power Corporation (2.61 percent). On the losing side were Mytilineos (down 4.02 percent), Hellaktor (3.24 percent), OPAP (3.23 percent), Piraeus Bank (2.91 percent), Hellenic Postbank (2.74 percent) and Eurobank EFG (2.59 percent). Turnover came to just 89.1 million euros.