Qatar Exchange index gained 21.82 points (0.25%) this week when trading closed Thursday afternoon at 8,605.60 points.The trading value this week decreased by 34.64% to reach QR 987,550,045.63 compared to QR 1,510,887,409.14. Trading volume decreased by 38.52% to reach 21,923,038 shares, as against 35,657,208 shares, while the number of transactions fell by 9.98%, to reach 14,500 transactions as compared to 16,108 transactions.The market capitalization rose by 0.11% to reach QR 469,838,030,588.62 as compared to QR 469,331,533,197.06 at the end of previous week.Banks and Financial Services sector led trading value this week with 30.98% of the total traded value. Industries sector accounted for 27.23%, Consumer Goods and Services sector accounted for 16.03% and Transportation sector accounted for 11.60%.Banks and Financial Services sector led traded volume this week with 30.66% of the total traded volume. Transportation sector accounted for 24.34%. The Real Estate sector accounting for 15.61% and Industrials sector accounted for 11.34%.Banks and Financial Services sector led trading number of transactions this week accounted for 34.01% of the total number of transactions. Industries sector accounted for 19.14%. The Consumer Goods and Services sector accounted for 14.83% and Transportation sector accounted for 13.20%.From the 42 listed companies 17 ended this week higher while 22 fell and three unchanged.Industries Qatar led traded value this week with 20.34% of the total traded value. Qatar Fuel accounted for 11.13% and Commercial Bank accounted for 9.37%.