Madison, WI (April 10, 2015) – The State of Wisconsin Investment Board (SWIB) Trustees Wednesday approved incentive compensation to employees based on investment performance above market returns over the past five years. SWIB manages over $106 billion in assets, a majority of which includes the Wisconsin Retirement System (WRS). The investment performance has generated approximately 80 percent of the WRS’s income over the past 10 years. Over the past five years, staff’s inves