Near risk-free rates
From ACT Wiki
Interest rate benchmarks.
(RFR).
In the context of interest rate benchmarks, 'near risk-free rates' include SOFR (the Secured Overnight Financing Rate) and SONIA.
The Financial Stability Board (FSB) recommended in 2014 that stakeholders should identify near risk-free rates that might be used as alternatives to LIBOR.
They are also known more simply as risk-free rates, although strictly they are not entirely risk-free.
Capital asset pricing model
RFRs should not be confused with the theoretically risk free rate of investment return, used in the Capital asset pricing model.