Important Disclaimer โ Not Financial Advice
The results from this calculator are for informational and educational purposes only. They are not a guarantee of actual outcomes and should not be considered financial, investment, tax, or legal advice. Always consult a qualified professional for advice tailored to your specific financial situation. See our Terms of Service and Privacy Policy for more information.
The Alpha Calculator helps investors determine the value added or subtracted by a portfolio manager compared to a market benchmark. By measuring Jensen's Alpha, you can effectively assess whether an investment is outperforming its expected risk-adjusted return.
The Alpha Calculator measures the excess return of an investment relative to the return of a benchmark index, indicating the value added or subtracted by the portfolio manager's investment decisions.
Alpha represents the risk-adjusted performance of an investment compared to a benchmark index.
A positive alpha indicates that the investment has outperformed its benchmark on a risk-adjusted basis.
A negative alpha suggests the investment underperformed relative to the expected return given its risk level.
Alpha is often used alongside beta to assess a portfolio's performance and risk characteristics.
Alpha = Portfolio Return - [Risk-Free Rate + Beta * (Market Return - Risk-Free Rate)]
This formula subtracts the expected return, calculated using the Capital Asset Pricing Model (CAPM), from the actual realized return of the investment.
Investors often use this tool when evaluating mutual funds or individual stock portfolios to see if the active management is truly providing value. If you pay a high management fee for a fund, you want to ensure the manager is generating a positive alpha rather than just tracking the market. It is particularly useful for comparing two different funds that have similar risk profiles but varying historical performance. By neutralizing the effect of market volatility, this calculator provides a clearer picture of professional investment skill versus mere luck.
If a stock portfolio returned 12% while the risk-free rate was 2% and the market returned 10% with a portfolio beta of 1.2, the expected return would be 11.6%. The resulting alpha of 0.4% indicates that the manager generated excess returns beyond what was required for the level of risk taken.
These authoritative sources inform our calculator methodology and ensure accuracy.
Written by Qasem Mohammed
Financial tools developer and founder of QFINHUB. All calculators are built with industry-standard formulas and reviewed for accuracy. Content is for educational purposes only โ always consult a qualified financial professional for decisions about your specific situation.
Last updated: June 25, 2026 ยทAbout QFINHUB ยท Editorial Policy
Last reviewed by Qasem Mohammed โ June 25, 2026
AI & Software Engineer, Founder & Lead Developer at QFINHUB ยท Editorial Policy
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Jensen's Alpha
+3.90%
Outperforming the market
Expected Return (CAPM)
+11.10%
Excess Return
+10.50%
Portfolio return minus risk-free rate