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A portfolio contains equal investments in 10 stocks

Finance Jan 22, 2021

A portfolio contains equal investments in 10 stocks. Four have a beta of 1.1; the remainder have a beta of 1.6. What is the portfolio beta?

A. 1.40

B. Greater than 1.40 because the portfolio is not completely diversified.

C. Less than 1.40 because diversification reduces beta.

D. None of the above

Expert Solution

Computation of Portfolio Beta:

Given,

Beta for 4 Stocks = 1.1

Beta for 6 Stocks = 1.6

Weight of 4 Stocks = 4/10 = 0.4

Weight of 4 Stocks = 6/10 = 0.6

 

Portfolio Beta = (1.1*0.4) + (1.6*0.6)

= 0.44 + 0.96

Portfolio Beta = 1.40

So, the correct option is A "1.40".

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