The expected return of the portfolio is equal to the risk free rate of return plus a risk premium based on a weighted average of the betas of the individual securities and the market risk premium.
The average (mean) of a portfolio's potential return dispersion, the expected return is the amount of returns that are predicted to be generated by a portfolio. Alternatively said, it refers to the stock's susceptibility to market risk. For instance, an investment has 150% of the volatility of the market average if its beta is equal to 1.5. The expected return on an asset, however, is equal to the typical market return if the beta is equal to 1.A single stock's movement in relation to the market is theoretically measured by the CAPM Beta, which takes correlation between the two variables into account. The market represents unsystematic risk, whereas beta represents systematic risk.
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