Alpha

Alpha measures the difference between a portfolio's actual returns and its expected performance, given its level of risk (as measured by beta).

Beta

Beta is a measure of a portfolio's sensitivity to market movements. A portfolio with a beta greater than 1 is more volatile than the market, and a portfolio with a beta less than 1 is less volatile than the market.

R²

R-squared reflects the percentage of a portfolio's movements that are explained by movements in its benchmark index, showing the degree of correlation between the portfolio and the benchmark.

Standard deviation

Standard deviation is a statistical measure of the volatility of the portfolio's returns.

Sharpe ratio

Sharpe ratio uses standard deviation and excess return to determine reward per unit of risk.