The Qatar Exchange down on Thursday 30.08 points or 0.35% to 8,481.20 points from the previous closing of 8,511.28 points. The volume of shares traded fell to 3,303,018 from 3,472,022 Wednesday, and the value of shares increased to QR139,257,572.03 from QR132,747,855.43 Wednesday. Among the top losers were Industries Qatar whose share dropped 1.13% to QR157.70, Commercial Bank of Qatar lost 0.93% to QR64.10, Qatar Islamic Bank fell 0.57% to QR69.90 and Doha Bank down 0.88% to QR45.00. Today the Qatar Banking and Financial sector lost 0.31 points while the Insurance sector fell 0.23 points. The Qatar industrial sector dropped.69 points and the Services sector down 0.09 points.