Saudi Arabia's benchmark index rose 0.4%, with Dr Sulaiman Al-Habib Medical Services advancing 3.1% and Sahara International Petrochemical Co climbing 4.2%
The Qatari benchmark added 0.6%, led by a 0.6% increase in Qatar National Bank and a 1.2% rise in Commercial Bank
Dubai's main share index declined 1%, with sharia-compliant lender Dubai Islamic Bank and blue-chip developer Emaar Properties both losing 1.4%.
Saudi Arabia's benchmark index finished 0.2% higher, supported by a 1.3% gain in Riyad Bank and a 1.9% increase in property firm Jabal Omar Development.