The ADX General Index ended flat at 2,551.39 points as investors missed several occasions in sustaining an index surge above the level of 2,554.00. Dana Gas advanced as the most liquid stock 2.90%, ending at Dhs0.71. The Sharjah-based firm's board of directors approved today a buy-back up to 10% of the company's share capital. Banks weighed o the market, as the ADX Banking Index lost 0.52% and Sharjah Islamic Bank (off 2.38% at Dhs0.81) and National Bank of Umm al-Qaiwain (down 1.96% atDhs2.50) finished among the top losing securities.