Saudi Arabia's benchmark stock index rose 0.4% on Wednesday, with most constituents trading in positive territory. Gains were led by information technology, materials and healthcare stocks.
Saudi Arabian Mining Co added 4.5%, while Arabian Mills for Food Products surged 8% after reporting a 32% rise in first-quarter net profit.
US President Donald Trump said he would briefly pause an operation escorting ships through the Strait of Hormuz, a key waterway that carries about a fifth of global oil supplies and has been blockaded by Iran since late February, triggering a global energy crisis.
So the fragile US-Iran ceasefire held firm despite a fresh flare-up in tensions, allowing investors to turn their attention back to corporate earnings.
Dubai's benchmark stock index rose 1.5%, rebounding from losses in the previous session.
Among individual stocks, blue-chip developer Emaar Properties gained 1.7%, while Dubai's largest lender, Emirates NBD, added 1.5%.
The Abu Dhabi benchmark index advanced 0.5%, with most constituents trading higher. Gains were led by utilities, healthcare and technology shares.
Presight AI Holding jumped 5%, while Alpha Dhabi climbed 2.3%.
The Qatari benchmark index edged up 0.3%, as most stocks traded higher. Industries Qatar gained 0.7%, while Qatar Fuel Co added 0.6%.