The Wisconsin Retirement System trust funds are invested by the State of Wisconsin Investment Board. The effect of investment returns on the benefits of WRS members is based on the rate of return as of December 31. Once performance numbers are final, SWIB reports calendar year-to-date returns. Reporting usually takes about four weeks because privately traded investments such as business loans, real estate and private equity are not available until four weeks after the close of the month.


WRS Investment Performance*

Calendar year-to-date (YTD) as of December 31, 2023. Calendar year-to-date and 5-year performance is net of all fees and costs. Ten-year performance is net of external manager fees.

FundCalendar YTD5-Year10-Year
Core Fund 11.40% 9.29% 7.09% 
Core Fund Benchmark 11.00% 8.72% 6.69% 
Variable Fund 22.24% 12.71% 9.25% 
Variable Fund Benchmark 23.14% 12.90% 9.32% 

*Returns and benchmarks are subject to final valuation and adjustments that may occur during the calendar year. 


Value of WRS Assets Under Management

Calendar year-to-date (YTD) as of December 31, 2023.

Core Trust Fund$122.5 billion 
Variable Trust Fund$9.8 billion 
Total$132.3 billion