Beta Risk Calculator
Calculate stock beta and expected return using CAPM model
About this calculator
The Beta Risk Calculator helps investors assess a stock's volatility relative to the overall market and calculate expected returns using the Capital Asset Pricing Model (CAPM). Beta measures systematic risk - values above 1 indicate higher volatility than the market, while values below 1 suggest lower volatility. This tool is essential for portfolio management, risk assessment, and making informed investment decisions by quantifying how much a stock's price movements correlate with market fluctuations.
How to use
Input the stock's historical price data along with corresponding market index values for the same period. Enter the risk-free rate (typically government bond yield) and market risk premium. The calculator will compute the stock's beta coefficient and use CAPM formula to determine the expected return based on the stock's systematic risk profile.
Frequently asked questions
What does a beta of 1.5 mean?
A beta of 1.5 indicates the stock is 50% more volatile than the market, moving 1.5% for every 1% market change.
How much historical data do I need?
Generally, 2-5 years of monthly price data provides reliable beta calculations, though weekly data can improve accuracy.
Can beta predict future returns?
Beta measures historical volatility patterns and systematic risk, but cannot guarantee future returns due to changing market conditions.