The Qatar Exchange down on Monday 14.65 points or 0.17% to 8,513.93 points from the previous closing of 8,528.58 points. The volume of shares traded up to 4,994,497 from 4,694,338 on last day, and the value of shares increased to QR286,439,009.30 from QR 215,042,437.65. Among the top losers were Commercial Bank of Qatar whose share dropped 1.61% to QR67.40, International Islamic Bank lost 0.53% to QR56.00, Qatar Telecom fell 3.03% to QR112.00 and National Leasing down 1.27% to QR35.05. Today the Qatar Banking and Financial sector added 0.14 points while the Insurance sector rose 0.78 points. The Qatar industrial sector gained 0.16 points and the Services sector up 0.87 points.