Image of Risk-free rate

Risk-free rate

Topic

The baseline central bank interest rate that influences overall corporate borrowing costs.


First Mentioned

10/18/2026, 3:02:58 AM

Last Updated

10/18/2026, 3:03:59 AM

Research Retrieved

10/18/2026, 3:03:59 AM

Summary

The risk-free rate is a foundational financial and economic concept representing the theoretical rate of return on an investment carrying zero default risk over a specified time horizon. Because it sets the absolute baseline for the time value of money, any asset bearing risk must offer an additional return premium above this rate to attract capital. In practice, yields on sovereign debt instruments issued by highly stable governments—most notably U.S. Treasury bills and 10-year Treasury notes—serve as real-world proxies. The metric is a vital parameter in core financial models, including the Capital Asset Pricing Model (CAPM), Black-Scholes option pricing, the Sharpe ratio, and weighted average cost of capital evaluations. In macroeconomic and venture finance contexts, sharp increases in the risk-free rate elevate debt-servicing burdens and cost of capital, contributing to financial strain across highly leveraged and capital-intensive infrastructure operations such as specialized AI cloud compute providers.

Research Data
Extracted Attributes
  • Field

    Finance and Macroeconomics

  • Common Proxies

    Zero-coupon U.S. Treasury bills (T-bills) and 10-year U.S. Treasury bonds

  • Macroeconomic Impact

    Elevated rates increase capital costs and tighten debt constraints for capital-intensive enterprises

  • Practical Limitation

    Purely theoretical, as no investment carries absolute zero risk, and market participants cannot borrow at this benchmark rate

  • Primary Applications

    Capital Asset Pricing Model (CAPM), Black-Scholes formula, Sharpe ratio, and corporate cost of capital calculations

  • Formulaic Role in CAPM

    Serves as the baseline intercept to which asset beta multiplied by the equity risk premium is added

  • Theoretical Definition

    The rate of return on a hypothetical investment with scheduled payments guaranteed to meet all obligations with zero risk of default

Risk-free rate

The risk-free rate of return, usually shortened to the risk-free rate, is the rate of return of a hypothetical investment with scheduled payments over a fixed period of time that is assumed to meet all payment obligations. Since the risk-free rate can be obtained with no risk, any other investment having some risk will have to have a higher rate of return in order to induce any investors to hold it. In practice, to infer the risk-free interest rate in a particular currency, market participants often choose the yield to maturity on a risk-free bond issued by a government of the same currency whose risks of default are so low as to be negligible. For example, the rate of return on zero-coupon Treasury bonds (T-bills) is sometimes seen as the risk-free rate of return in US dollars.

Web Search Results
  • Risk-free rate - Wikipedia

    icon The risk-free rate of return, usually shortened to the risk-free rate, is the rate of return of a hypothetical investment with scheduled payments over a fixed period of time that is assumed to meet all payment obligations. Since the risk-free rate can be obtained with no risk, any other investment having some risk will have to have a higher rate of return in order to induce any investors to hold it. In practice, to infer the risk-free interest rate in a particular currency, market participants often choose the yield to maturity on a risk-free bond issued by a government of the same currency whose risks of default are so low as to be negligible. For example, the rate of return on zero-coupon Treasury bonds (T-bills) is sometimes seen as the risk-free rate of return in US dollars. [...] The risk-free rate is also a required input in financial calculations, such as the Black–Scholes formula for pricing stock options and the Sharpe ratio. Note that some finance and economic theories assume that market participants can borrow at the risk-free rate; in practice, very few (if any) borrowers have access to finance at the risk free rate. The risk-free rate of return is the key input into cost of capital calculations such as those performed using the capital asset pricing model. The cost of capital at risk then is the sum of the risk-free rate of return and certain risk premia. ## See also ## Notes ## References [...] An alternative (less well developed) interpretation is that the risk-free rate represents the time preference of a representative worker for a representative basket of consumption. Again, there are reasons to believe that in this situation the risk-free rate may not be directly observable. A third (also less well developed) interpretation is that instead of maintaining pace with purchasing power, a representative investor may require a risk free investment to keep pace with wages.

  • Risk Free Rate

    The risk-free rate is the return on an investment with no financial risk. It acts as a benchmark for comparing other investments. Investors use it to assess

  • The Risk-Free Rate: Understanding the Foundation of Financial Analysis - Pantheon Investments

    The risk-free rate refers to the hypothetical return an investor can earn by investing in an asset or security that carries zero risk. In theory, such an investment is considered to have no possibility of default or loss of principal. While there are no completely risk-free investments in reality, certain instruments are widely regarded as proxies for the risk-free rate due to their low risk profiles. Government bonds, particularly those issued by financially stable countries with negligible default risk, are commonly used as proxies for the risk-free rate. The risk-free rate serves as a baseline against which the performance of other investments is evaluated. It forms a critical component in numerous financial models and calculations, including: [...] 2. Capital Asset Pricing Model (CAPM): The CAPM is a widely used framework for estimating the expected return of an investment based on its systematic risk. It incorporates the risk-free rate as a key input to calculate the expected return on a specific asset or portfolio. The risk-free rate represents the minimum return that investors require for assuming no systematic risk, with the asset’s expected return then adjusted based on its beta and the overall market’s risk premium. [...] 1. Cost of Capital: The risk-free rate plays a pivotal role in estimating the cost of capital for a company or project. It serves as the starting point for determining the required rate of return that investors expect to receive for investing in an enterprise or undertaking. By incorporating the risk-free rate, investors can assess the level of return they demand to compensate for the time value of money and the associated risk.

  • Risk-Free Rate Formula & Calculations | Wall Street Prep

    ## What is the Risk Free Rate? The Risk Free Rate (rf) is the theoretical rate of return received on zero-risk assets, which serves as the minimum return required on riskier investments. The risk-free rate should reflect the yield to maturity (YTM) on default-free government bonds of equivalent maturity as the duration of the projected cash flows. Risk Free Rate (rf) ## How to Calculate Risk Free Rate (rf) For corporate valuations, the majority of risk/return models begin with the presumption that there is a so-called “risk-free rate”. The yield on a risk-free asset – most commonly the 10-year Treasury bond in the US – is the minimum rate of return expected on investments with “zero risk” and the starting point upon which many valuation models build. [...] Under the CAPM, the expected return on a risky asset is estimated as the risk-free rate plus an approximated equity risk premium. The minimum threshold for return factors in the beta of the specific asset (i.e. systematic risk) and the average return of the stock market. The risk-free rate serves as the minimum rate of return, to which the excess return (i.e. the beta multiplied by the equity risk premium) is added. The equity risk premium (ERP) is calculated as the average market return (S&P 500) minus the risk-free rate. Equity Risk Premium (ERP) = Expected Market Return – Risk-Free Rate (rf) The equity risk premium helps investors evaluate potential investments based on the “extra” return that they are receiving for the incremental risk above the rf rate. [...] The relationship between the real and the nominal risk-free rate is depicted by the following equation: Real Risk Free Rate (rf) = (1 + Nominal rf Rate) ÷ (1 + Inflation Rate) The nominal risk-free rate refers to the yield on a risk-free asset without the effect of inflation. If the projected cash flows are discounted in nominal terms (i.e. reflects expected inflation), the discount rate used should also be nominal. Nominal Risk Free Rate (rf) = (1 + Real rf Rate) x (1 + Inflation Rate) – 1 ## What is the Role of the Risk Free Rate in CAPM? The risk-free rate has a significant role in the capital asset pricing model (CAPM), which is the most widely used model for estimating the cost of equity.

  • Risk‑Free Rate - Definition, How It Works, Role in Finance

    ## What is Risk-Free Rate? The risk-free rate of return is the interest rate an investor can expect to earn on an investment that carries zero risk. In practice, the risk-free rate is commonly considered to be equal to the interest paid on a 10-year highly rated government Treasury note, generally the safest investment an investor can make. ## How the Risk-Free Rate Works The risk-free rate is a theoretical number since technically all investments carry some form of risk, as explained here. Nonetheless, it is common practice to refer to the T-note rate as the risk-free rate. While it is possible for a highly rated government to default on its securities, the probability of this happening is considered very low.