The Unified Investment Program was established by the legislature to create a single agency vested with the authority to invest and manage state funds in accordance with state law and the Montana Constitution. The Unified Investment Program has grown from a book value of $321 million at year-end 1972 to a book value of $18.6 billion at year-end 2018.
During the same period, the number of accounts invested by the Board increased from 40 accounts to 484 accounts.
By state law 17-6-201, MCA, the Board is required to administer the Unified Investment Program in accordance with the "prudent expert principle," defined as:
- discharging its duties with the care, skill, prudence, and diligence that a prudent person acting in a like capacity with the same resources and familiar with like matters exercises in the conduct of an enterprise of like character and like aims;
- diversifying the holdings of each fund to minimize the risk of loss and maximize the rate of return; and
- discharging its duties solely in the interest of and for the benefit of the funds managed.