The permanent debt woes in Europe and persistent political tensions in the Middle East have influenced the global indexes in May. The DJIM Citigroup Sukuk Index -- which measures the performance of investment-grade-rated, U.S. dollar-denominated Islamic bonds -- posted the largest gain, closing 0.94% higher to reach 129.85 points, as of the close of trading on May 24.
The DJIM Pakistan Index also gained 12.67% since January 1, 2011.
The DJIM China Offshore Index plummeted 8.65% to 3,465.53, while the DJIM BRIC Index lost 8.56% to 2,114.90.