The Massachusetts Pension Reserves Investment Management Board grew its defined benefit retirement portfolio’s assets by $7.9 billion in 2013 thanks to 15.2% investment return.
In an announcement Tuesday, the Boston-based agency stated that the Pension Reserves Investment Management Trust Fund ended the calendar year with about $57.9 billion. State Treasurer Steven Grossman credits the performance of global equities and private equity to exceeded its benchmark index by about 264 basis points.