About State of Wisconsin Investment Board
SWIB's investments are managed by its own professional staff and by outside money manager firms. SWIB is required to make investment management decisions for the pension funds solely for the benefit of the members of the Wisconsin Retirement System (WRS). As fiduciaries of the pension funds, SWIB staff and Trustees are required to use the diligence, skill and care that a prudent investor would use in managing a large public pension fund. Trustees are responsible for determining SWIB's overall investment management policies. Selection of individual investments is in the hands of staff and external money management firms. Both must make investment decisions based on extensive research, detailed analytics and judgment based on risks and potential returns. The rate of return and risk are evaluated when considering asset classes and the individual investments.