Egypt's blue-chip index ended its three-day winning streak as declines in banking shares sent it into negative territory on Monday, while financial stocks bolstered the Saudi index.
The Egyptian index lost 0.4%, with the country's largest lender Commercial International Bank (COMI) falling 1% and Eastern Company dropping 2.6%.
Cairo Investment and Real Estate Development outperformed the market, jumping 6.3% after its board approved a 25 million euro ($27.27 million) loan agreement to finance the first phase of construction of a university in Asyut.
The index is up more than 9% this year.
The Saudi Arabian index, meanwhile, firmed by 0.5%, extending gains from the previous session, helped by gains for Al Rajhi Bank and Walaa Cooperative Insurance , up 0.6% and 4.3% respectively.
On Sunday Walaa Cooperative said it had a binding agreement to acquire Metlife AIG ANB in an all-share deal.
Metlife closed 2.8% lower, while one of its major shareholders, Arab National Bank , advanced 3.2%.
Moody's said Saudi Arabia insurers' weaker profitability and capitalisation pressures would spur more consolidation in the sector.
The Abu Dhabi's index dipped by 0.3% as First Abu Dhabi Bank lost 1.1% and Abu Dhabi Commercial Bank dropped 1%.
In Dubai, the index traded flat, with Air Arabia rising 3.3% while Damac Properties was down 4.1%.
Fitch Ratings last week said that a weakening property market in the United Arab Emirates (UAE), where prices have fallen more than 20% since their 2014 peak, is likely to put more pressure on the banking sector's asset quality.
The ratings agency also predicted that "a significant proportion of the $23 billion loans to Dubai government-related entities due to mature by end-2021 may be restructured again".
In Qatar, the index ended 0.3% down, extending losses for a third straight day, with Qatar Islamic Bank down 2.1% and Commercial Bank shedding 3.4%.
($1 = 0.9168 euros)
(Reporting by Ateeq Shariff and Shamsudding Mohd in Bengaluru Editing by David Goodman) ((AteeqUr.Shariff@thomsonreuters.com; +918067497129;))