 ARLINGTON, Va., Sept. 07, 2021 GLOBE NEWSWIRE -- Assets under management AUM of the worlds top 300 pension funds increased by 11.5 to a total of US21.7 trillion in 2020, according to the annual research conducted by the Thinking Ahead Institute. The research highlights high-level trends in the pension funds industry and provides information on how the characteristics of these funds have changed. 