Qatar Exchange pursued its upswing trend Thursday, adding 50.46 points (or 0.59%) to advance to 8,583.78 points from 8,533.32 on Wednesday.The volume of the shares traded up to 6,031,362 from 5,953,127 on Wednesday and the value of shares decreased to QR200,051,670.85 from QR278,695,929.48 Wednesday.Among the top gainers were Industries Qatar which was up 0.75% to QR175.10, International Islamic Bank rose 1.16% to QR52.50, Electricity and Water gained 3.35% to QR139.00 and Al khalij Commercial Bank up by 2.23% to QR16.50.The Banking and Financial sector index lost 0.04 points while Consumer Goods and Services sector index added 0.24 points. The industrial sector gained 0.97 points while insurance sector rose 0.26 points.