The June contract on the FTSE/ASE Large Cap index was trading at a discount of 0.39 pct in the Athens Derivatives Exchange on Friday. Volume on the Big Cap index totaled 2,997 contracts with 8,754 open positions in the market. Volume in futures contracts on equities totaled 66,996 contracts with investment interest focusing on National Bank's contracts (28,688), followed by Alpha Bank (7,937), Piraeus Bank (6,040), Eurobank (7,127), ADMIE (198), MIG (11,085), OTE (360), PPC (1,803), OPAP (384), Viohalco (547), Mytilineos (219), Hellenic Petroleum (343), GEK Terna (236), Ellaktor (235), Jumbo (159), Intralot (945), Terna Energy (247).