Sampling of FY2016 Investment Returns for Largest Endowments Posted on May 25, 2017 at 10:56 am. Sampling of FY2016 Investment Returns for Largest Endowments Endowment FY2016 Returns (%) Assets ($B) 10-year annualized return (%) Yale University [Read More]To access this content, you must be a member. Visit the Plans page for details.