The WIBC Leaderboard announced today the global rankings of Islamic banks in terms of Cost-to-Income ratio, one of the financial performance sub-indicators of the Leaderboard. No less than three Qatar-based banks have appeared in the top 5 Islamic banks in the GCC based on the Cost-to-Income ratio rankings. As per the rankings, Masraf Al Rayan and Qatar International Islamic Bank, both based in Qatar are positioned at the top of Islamic financial institutions in the GCC with a ratio of 20.6% and 24.4% respectively. The Cost-to-Income ratio is calculated based on non-interest operating cost divided by the sum of net interest income and non-interest operating income.