Qatar Exchange index gained 77.56 points (0.91%) this week when trading closed Thursday afternoon at 8,583.78 points.The trading value of QR 1,510,887,409.14, is an increase by 45.32% compared to QR 1,039,674,105.87 the previous week.Trading volume of 35,657,208 shares is an increase by 77.67% compared to 20,069,296 shares, while the number of transactionsrose by 35.49%, to reach 16,108 transactions as compared to 11,889 transactions last week.The market capitalization of QR 469,331,533,197.06 is an increase by 0.63% compared to QR 466,379,833,124.94 at the end of previous week.Industrial sector led the trading value this week with 36.95% of the total traded value. Banks and financial services accounted for24.68%, real estate accounted for 17.48% and transportation accounted for 9.65%.Real Estate sector led trading volume this week with 32.15% of the total traded volume. Banks and financial services accounted for 23.17%. Transportation accounted for 20.67% and industrial sector accounted for 14.38%.Banks and financial services led number of traded transactions this week with 30.49% of the total number of transactions. Real estate accounted for 20.52%. Industrial sector accounted for 18.16% and transportation sector accounted for 15.24%.From the 42 listed companies 19 ended this week higher while 22 fell and one was unchanged.Industries Qatar led the traded value this week with 30.45% of the total traded value. Barwa Real Estate accounted for 15.38% and Qatar Gas Transport Company (Nakilat) accounted for 7.74%.