Mid-caps buoyed the Greek stock market yesterday to cancel out the losses incurred by blue chips and small-caps in a day with major shifts. The Athens Exchange (ATHEX) general index ended the session at 1,847.07 points yesterday, gaining 0.06 percent on Monday’s close. Such were the fluctuations recorded that the index ranged from 0.74 percent up to 1.50 percent down. The blue chip FTSE/ATHEX 20 index dropped by 0.28 percent to end at 951.44 points. The best-performing blue chips were Hellaktor (up 4.86 percent), Coca-Cola HBC (3.31 percent), Titan Cement (2.56 percent) and OPAP (2.54 percent). The biggest losses were sustained by the stocks of National Bank (down 3.50 percent), Marfin Popular Bank (3.47 percent) and Bank of Cyprus (3.23 percent). Turnover came to a modest 138.5 million euros.