Samba Financial Group jumped 4.3% after it reported a 19.6% increase in first-quarter net profit, while the country's biggest lender National Commercial Bank rose 2.3% after reporting a 2.1% rise in quarterly profit.
Saudi Aramco closed up 1.3% at 32.35 riyals above its initial public offering price of 32 riyals, a mark it last touched on April 12.
In Dubai, the index gained 0.4% with its biggest lender Emirates NBD adding 3.2%.
Union Properties jumped 3.1% after the real estate developer said it would seek approval from shareholders to utilise statutory reserve to reduce its accumulated losses, which stood at 2.14 billion dirhams ($582.68 million) and represented nearly 50% of the capital at the end of 2019.
The Qatari index ended up 0.8%, with Industries Qatar and Qatar Islamic Bank rising 4% and 2.3%, respectively.
A decliner was the Abu Dhabi index, down 0.1%, as the United Arab Emirates' biggest lender First Abu Dhabi Bank (FAB) retreated 0.4%.
Reuters reported, through sources, that FAB put on hold discussions to acquire the Egyptian assets of Lebanon's Bank Audi due to difficult market conditions.
In Egypt, the index fell 0.8%, dragged down by tobacco firm Eastern Company declining 3.5%.
El Sewedy Electric fell 4.8%, its fourth consecutive session of losses, after the cable maker reported a more than 50% plunge in first-quarter net profit.