The Egyptian Exchange lost 4.6 billion pounds at the opening of its trading session on Wednesday as all indices signaled a downward performance prompted by sellings by investors on the back of the current political developments in the country. The benchmark index EGX 30 retreated 1.4 percent down to 5562.89 points while the all-embracing EGX 100 index followed suit with 1.79 percent taking the index down to 742.72 points.