CAPM Calculator
Calculate expected return using the Capital Asset Pricing Model. Visualize Security Market Line and compute Jensen's ...
What CAPM Calculator does
The CAPM Calculator helps investors determine the expected return for an investment based on its risk level. Users input a risk-free rate, a market return, and a stock's beta coefficient to calculate the required yield. The tool also computes Jensen's alpha by comparing the actual return entered against the model's expected output, indicating whether an investment is overpriced or underpriced relative to its risk. A visual representation of the Security Market Line is generated to illustrate where the stock falls relative to the broader market. The output provides a quantitative framework for evaluating whether an investment's past or projected return adequately compensates for its volatility, moving beyond simple percentage comparisons to risk-adjusted analysis.
How to use the Financial Toolset CAPM Calculator
- 1
Enter the risk-free rate percentage (e.g., Treasury yield) into the designated field
- 2
Input the expected market return percentage to establish the market risk premium
- 3
Provide the stock's beta coefficient to measure its volatility relative to the market
- 4
Enter the stock's actual return percentage to compare against the model's calculation
- 5
Review the calculated expected return, Jensen's alpha value, and the Security Market Line visualization to assess the investment's risk-adjusted performance
Best for
Investors and finance students who want a quantitative, risk-adjusted method to evaluate whether an investment's return adequately compensates for its volatility, particularly those comparing multiple stocks or assessing if a stock is fairl
Limitations
- Results depend on the user-provided inputs, which may be based on estimates or outdated data rather than current market conditions
- The model assumes a single-period framework and may not capture multi-year risk dynamics or changing market regimes
- Beta values are historical and may not accurately predict future volatility, especially for stocks with limited trading history or in rapidl
CAPM Calculator FAQ
- What do I need to run a CAPM calculation?
- You need three inputs: the risk-free rate (often a Treasury yield), the expected market return, and the stock's beta coefficient. The tool then calculates the expected return based on the formula: risk-free rate plus beta times the market risk premium.
- How do I interpret the Jensen's alpha result?
- Jensen's alpha shows the difference between the stock's actual return and the return predicted by the CAPM model. A positive alpha means the investment outperformed its risk-adjusted expectation, while a negative alpha indicates it underperformed relative to the risk taken.
- Can I use this tool to compare different stocks?
- Yes, by entering the same risk-free rate and market return for each stock while using their individual beta coefficients and actual returns, you can compare their expected returns and Jensen's alphas to see which offers better risk-adjusted performance.
- What does the Security Market Line visualization show?
- The Security Market Line graph plots expected return against beta, showing the market's risk-return tradeoff. Your stock's position on the line indicates whether it is fairly priced, overpriced, or underpriced relative to its measured risk level.
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