The telecommunications giant has been falling since Thursday, when it said Chief Executive Ahmad Julfar had resigned and said it would restructure by June-end. It did not describe the restructuring plans. Qatar's benchmark fell 0.6 percent to 10,328 points in moderate volume. Barwa Real Estate, the most heavily traded stock, fell 0.8 percent and Qatar National Bank dropped 0.9 percent. Cairo's main index initially rose but closed flat in moderate volume. Last week, the index rallied 7.8 percent, breaking above its February peak, a bullish technical signal. The Egyptian pound held steady at an official auction on Sunday but strengthened on the black market. The central bank supplied the market with foreign currency last week and eased restrictions on dollar deposits and withdrawals.