The Qatar Exchange down on Tuesday 9.17 points or 0.11% to 8,381.15 points from the previous closing of 8,390.32. The volume of shares traded fell to 2,326,116 from 3,347,326 Monday, and the value of shares decreased to QR103,898,959.65 from QR118,202,378.47 Monday. Among the top losers were Masref Al Rayan whose share dropped 0.59% to QR25.40, Doha Bank lost 0.78% to QR50.60, Gulf warehousing Company fell 1.33% to Q40.90 and The Investors down 1.14% to QR22.64. Today the Qatar Banking and Financial sector added 0.31 points while the Insurance sector up 0.91 points. The Qatar industrial sector lost 10.60 points and the Services sector fell 0.19 points.