Protesters who support former Egyptian President Mohamed Morsi carry an injured man during clashes outside the Republican Guard building in Cairo (Photo: Reuters)
Egypt's main index plunged 2.4 percent within minutes of the bourse opening, hours after Cairo clashes left 42 dead and 322 injured.
The violence sent stocks spiralling downwards, with the EGX30 index down 2.53 percent by 11:30 am and the broader EGX70 index down 3.2 percent.
The bourse had surged 5 percent on Thursday, the day after Egypt's first freely-elected president was deposed by the Armed Forces after days of mass protests demanding his departure.
But violence over the weekend between supporters of the ousted president and their opponents caused stocks to dip once more on Sunday, sliding 0.4 percent.
Blue chip Commercial International Bank was down some 4.4 percent and Orascom Construction Industries slid 0.82 percent.
Egyptian Financial Group-Hermes had fallen nearly 4.3 percent and Orascom Telecom 2.5 percent.
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