The Wisconsin Retirement System (WRS) 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. (See Annual Returns, Rates and Adjustments.)
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*
Below is the calendar year-to-date investment performance as of May 31, 2025. Calendar year-to-date and five-year performance is net of all fees and costs. Ten-year performance is net of external manager fees.
| Calendar YTD | 5-Year | 10-Year | |
|---|---|---|---|
| Core Fund | 4.73% | 8.95% | 7.53% |
| Core Fund Benchmark | 4.19% | 8.02% | 6.98% |
| Variable Fund | 4.76% | 14.01% | 10.38% |
| Variable Fund Benchmark | 4.60% | 14.07% | 10.35% |
*Returns and benchmarks are subject to final valuation and adjustments that may occur during the calendar year.
Value of WRS Assets Under Management
Below is the calendar year-to-date assets value as of May 31, 2025.
| Value | |
|---|---|
| Core Fund | $132.4 billion |
| Variable Fund | $11.2 billion |
| Total | $143.6 billion |