Alberta Investment Management Corp. says it had an overall rate of return of 9.1% in 2015 and its main fund did even better.

The Edmonton-based fund manager says its balanced fund — holding the bulk of its assets — had a 10.1% rate of return for 2015 and ended the year with $75.9 billion of assets.

AIMCo is an arms-length agency of the Alberta provincial government that was established in January 2008, primarily to manage long-term investments on behalf of 26 pensions and other clients in Alberta.

In total, AIMCo had $90.2 billion of assets under management as of Dec. 31, including $14.3 billion managed for government and specialty fund clients that want its expertise in short- and medium-term fixed income investments.

It said Tuesday that more detailed information will be available with AIMCo’s annual report, to be released in June.