
The CAPM or the Capital Asset Pricing Model is a model that helps in determining a theoretically correct required rate of
The model considers the sensitivity of assets to non-diversifiable risk. It is represented by beta (ß) or the expected return of the market and the expected return of a theoretical risk-free asset.
Beta:
Beta is the covariance of a security with the market upon the variance of the market. It measures the change in percentage in the excess return of a particular security for 1% change in the excess return of a market portfolio or a benchmark portfolio. The beta
of a portfolio is the weighted average beta of the overall stocks in a portfolio.
It can be calculated using the formula given below.
Where,
is the beta of a portfolio.
is the weight of a stock.
To determine:
Expected return of portfolio, consisting of 60% of A stock and 40% of C stock.

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Fundamentals of Corporate Finance, Student Value Edition
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