Emmy is analyzing a two-stock portfolio that consists of a Utility stock and a Commodity stock. She
Question:
Emmy is analyzing a two-stock portfolio that consists of a Utility stock and a Commodity stock. She knows that the return on the Utility stock has a standard deviation of 40 percent and the return on the Commodity stock has a standard deviation of 30 percent. However, she does not know the exact covariance in the returns of the two stocks. Emmy would like to plot the variance of the portfolio for each of three cases—covariance of 0.12, 0, and –0.12—in order to understand how the variance of such a portfolio would react. Do the calculation for all three cases (0.12, 0, and –0.12), assuming an equal proportion of each stock in the portfolio.
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...
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Fundamentals of corporate finance
ISBN: 978-0470876442
2nd Edition
Authors: Robert Parrino, David S. Kidwell, Thomas W. Bates