Arab and foreign investors' purchases pushed Egypt's three main stock indices towards modest gains in the opening hours of trading Thursday, tempered by Egyptian transactions mostly consisting of sales. The principal stock index, EGX 30, rose 0.24 percent, while the medium and small companies index EGX gained 0.26 percent. The EGX 100 index rose 0.14 percent. Trading volumes read EGP 59.7 million (U.S. $10 million). Shares of Commercial International Bank (CIB) gained 1.5 percent. Orascom Telecom gained 0.59 percent, El Swedi Electric 1.1 percent, Talaat Mostafa 2.04 percent, Ezz Steel 0.37, and el-Saeed el-Amma Contracting 2.2 percent. El-Moltaka el-Arabi Investment shares led gains, gianing 9.02 percent.