Beta Stock Calculator
Enter the correlation with the market and the stock and market volatilities to find the beta.
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Enter the correlation and volatilities to see the beta.
Worked example
With these example inputs:
- Correlation with market0.8
- Stock volatility25%
- Market volatility18%
Stock beta: 1.11
Frequently asked questions
How is beta calculated?
Multiply the stock's correlation with the market by the ratio of the stock's volatility to the market's. A 0.8 correlation with 25% and 18% volatility gives a beta of about 1.11.
What does beta tell me?
Beta measures how much a stock moves relative to the market. Above one is more volatile than the market, below one is less, and a negative beta moves the opposite way.