The formula to calculate alpha in mutual funds is:
(End Price + DPS - Start Price)/Start Price
Wherein, DPS stands for Distribution Per Share.
The alpha in mutual funds can alternatively be calculated using CAPM. Since CAPM is indicative of the returns expected from a particular fund, any number that deviates from the same would be the alpha.
The formula to calculate beta in mutual funds is:
Covariance/Variance of the market returns
Beta in the context of mutual funds is a two-ingredient calculation: namely, covariance and variance. The term covariance refers to how two different stocks respond to one another under the influence of varying conditions in the market. A positive covariance would indicate that two stocks move with each other, while a negative covariance would indicate that two stocks move against each other.
Variance is directly related to the price movement of a fund from the average or mean and denotes the price volatility of that fund for a given period.