The Abu Dhabi Securities Exchange ADX joined most of the GCC markets in a positive debut of the new week by ending up 0.56% at 2,533.97 points. Although most actively traded in relation to turnover, shares of national telecom giant Etisalat ended flat at Dhs10.35. Mohammad Omran, chairman of Etisalat has announced plans to invest EGP8bn ($1.41bn) in the firm's Egyptian unit over the next three years, as it eyes growth in the market, Reuters has reported. Etisalat Misr's customer base reached 14 million within three years of starting its operations. Real estate shares supported the upswing at the ADX while industrials weakened.