The Qatar Exchange down on Tuesday 33.58 points or 0.39% to 8,480.35 points from the previous closing of 8,513.93. The volume of shares traded fell to 4,861,450 from 4,994,497 Monday, and the value of shares increased to QR181,800,746.02 from QR286,439,009.30 Monday. Among the top losers were Industries Qatar whose share dropped 0.18% to QR170.00, Commercial Bank of Qatar lost 0.59% to QR67.00, Al khalij Commercial Bank fell 6.41% to QR16.20 and United Development Company down 0.58% to QR17.20. Today the Qatar Banking and Financial sector dropped 0.39 points while the Insurance sector added 2.88 points. The Qatar industrial sector up 0.18 points and the Services sector fell 0.43 points.