What is Beta?
Beta is a measure of systematic risk associated with a security, portfolio, or investment opportunity. It is used in the capital asset pricing model (CAPM) to price risky securities and to estimate expected returns of assets.
What is the Capital Asset Pricing Model?
The Capital Asset Pricing Model (CAPM) is a model used to determine the expected return of an asset given its level of risk. The formula for CAPM is: E(Ri) = Rf + ßi(E(Rm) - Rf)
, where E(Ri) is the expected return of the asset, Rf is the risk-free rate, ßi is the beta coefficient of the asset, and E(Rm) is the expected return of the market portfolio.