To embed, copy and paste the code into your website or blog: With the end of LIBOR drawing closer, the FCA, Bank of England and the Working Group on Sterling Risk-Free Reference Rates (the Working Group) are encouraging market participants to actively transition from referencing LIBOR rates in their loan agreements to risk-free rates (such as SONIA). In this respect, one important aspect that market participants need to consider is the credit spread adjustment ( CAS) that will be required. Market participants use a CAS to mitigate the risk of value transfer when transitioning to risk-free rates due to the difference between LIBOR rates and the risk-free rates, caused by the lack of a credit risk premium in risk-free rates.