Answer:
The Required rate of return on Portfolio is 9.67%
Explanation:
In order to get the answer first we need to calculate the new beta of portfolio. The weight of portfolio and new stock is calculated using total value of investment in portfolio and multiplying by the total investment we get new beta.
(3M / 3.6M) x 1.10 + (0.6M / 3.6M) x 0.60 = 1.01667
Through using the CAPM Model we get risk premium of Existing Portfolio:
Required rate of return of portfolio = RF + ( Rm - RF ) x beta
10% = 5.6% + (Rm -RF) x 1.10
10% - 5.6% = (Rm - RF) x 1.10
4.4% / 1.10 = (Rm - RF)
(Rm - RF) = 4%
After getting the Risk Premium we can CAPM model equation to get New Required rate of return.
Required rate of return of portfolio = RF + ( Rm - RF ) x beta
Required rate of return of portfolio = 5.6% + 4% x 1.01667
Required Rate of Return of Portfolio = 9.67%
