The Egyptian Exchange (EGX) hit Tuesday its highest record since 2010 as the two-day constitutional referendum started.
The bourse gained 5 billion EGP, upping its market capital to 445.1 billion pounds amid optimism that the new constitution will get a sweeping "yes".
The EGX 30 main benchmark index was up 1.66 percent to close at 7,234.93 points.
The bourse suspended trading of 11 securities for half an hour after transcending the highest allowed limits.
The broader EGX 70 index of the leading smaller and mid cap enterprises (SME) inched 0.86 percent up, reaching 569.62 points.
The all-embracing EGX 100 index increased 0.86 percent to stand at 967.35 points.