The Qatar Exchange finished at 6,851.90 points (up 0.40%). Trading volumes fell over 20% to 3.8m shares. Doha Bank added 1.13% and closed at QR45.00. The bank has been trading for over a year in a narrow range around QR40.00. Vodafone Qatar emerged as the top share in relation to volume, but ended flat at QR7.90. Since its IPO in May 2009, the UK telecom giant's Qatari subsidiary failed to add shareholder value.