Return on investment

The rates of return in the table above represent the investment returns for the Commingled Trust Fund (CTF) managed by the Washington State Investment Board (WSIB). These returns differ from the CTF investment performance reported in OSA’s annual Actuarial Valuation Report (AVR). The key differences in the AVR measure include accounting for portfolio cash flows, known as the dollar or money-weighted return methodology, and recognizing the late valuation of private market and real estate asset classes.