Risk-Free Rate Assumption

Definition

The risk-free rate assumption posits a theoretical rate of return on an investment with zero financial risk, a foundational concept in financial modeling and options pricing. In traditional finance, this is often approximated by government bond yields. For crypto derivatives, identifying a true risk-free rate is challenging due to inherent market volatility and lack of a universally accepted sovereign benchmark. This rate is a critical input for models like Black-Scholes, influencing option valuations and hedging strategies. It represents the opportunity cost of capital for investors.