The Egyptian Exchange (EGX) gained EGP 1.2 billion at the close of trading on Tuesday, prompted by intensive selective purchases by Arab investment institutions. The EGX 30 benchmark index was up 0.61 percent, recording 5,320.95 points. The broader EGX 70 index of the leading smaller and mid cap enterprises (SME) rose 0.1 percent to stand at 471.67 points. The all-embracing EGX 100 index followed suit with 0.16 percent, taking the index up to 790.17 points.