The Qatar Exchange in the green area Wednesday adding 33.56 points (or 0.39%) to advance to 8,606.67 points from 8,573.11 Tuesday.The volume of the shares traded up to 5,723,942 from 5,128,003 on Tuesday, and the value of shares decreased to QR258,483,007.34 from QR331,969,603.58 Tuesday.Among the top gainers were Qatar National Bank which was up 0.37% to QR134.00, Industries Qatar rose 0.51% to QR158.70, Electricity and Water gained 3.24% to QR143.50 and Barwa Real Estate up by 2.69% to Q24.85.The Banking and Financial sector index was up 0.15 points while Consumer Goods and Services sector index added 0.60 points. The industrial sector was gained 1.08 points while insurance sector rose 0.64 points