Minimum Variance Portfolio | CFA Level 1 Exam | Test Prep

Minimum Variance Portfolio

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Question

Kendra Jackson, CFA, is given the following information on two stocks, Rockaway and Bridgeport.

Assuming that Jackson must construct a portfolio using only these two stocks, which of the following combinations will result in the minimum variance portfolio?

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Explanations

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A. B. C. D.

D

First, calculate the correlation coefficient to check whether diversification will provide any benefit. rBridgeport, Rockaway= covBridgeport, Rockaway/ [ ( Bridgeport) * ( Rockaway) ] = 0.0325 / (0.13 * 0.25) = 1.00

Since the stocks are perfectly positively correlated, there are no diversification benefits and we select the stock with the lowest risk (as measured by variance or standard deviation), which is Bridgeport.