--%>

Additive risk in the CAPM

Suppose that the two securities APPL and MSFT account for the entire large cap technology component of the S&P 500 (hypothetically – of course – there are really plenty of others). Further, suppose that their weights in the S&P index were as follows:

1988_capm.jpg

So that, for example, AAPL makes up 3% of the index since its weight is 0.03. [These weights are hypothetical – actual weights are computed based on the current market capitalization of each company included in the index, so they change all the time]

a. What fraction of the total portfolio is this large cap technology sector?
b. What is the beta of this large cap technology sector?
c. If the S&P 500 is the market portfolio, what is its beta?
d. What is the beta of the remaining stocks in the S&P (consider these as a single sector)?

   Related Questions in Corporate Finance

  • Q : Is it possible to use a constant WACC

    Is this possible to use a constant WACC in the valuation of a company along with a changing debt?

  • Q : What is the expected risk premium on

    You have decided to invest 30 percent in X; 30 percent in Y; and 40 percent in Z. Theprobability of the state of the economy is Boom 25%; Normal 60%; and, Bust 15%. The rateof return for stock X is Boom .20; Normal .15; and, Bust .00. The rate of return for stock Y is

  • Q : What is the required rate of return on

    Woidtke Manufacturing's stock currently sells for $29 a share. The stock just paid a dividend of $2.50 a share (i.e., D0 = $2.50), and the dividend is expected to grow forever at a constant rate of 9% a year. What st

  • Q : Walt disney WAAC You work in Walt

    You work in Walt Disney Company’s corporate finance and treasury department and have just been assigned to the team estimating Disney’s WACC. You must estimate this WACC in preparation for a team meeting later today....?

  • Q : Standard deviation of portfolios returns

    Assume that you have $50,000 which you want to invest in two companies, XYZ Books and ABC Audio. XYZ has a return of 10% and standard deviation 15%, while ABC has return of 15% with a standard deviation of 20%. The correlation coefficient between them is .5. Your port

  • Q : Define the term Commercial Paper

    Commercial Paper: It is an unsecured obligation issued by the corporation or bank to finance its short-term credit requirements, like accounts inventory and receivable. Maturities usually range from 2 to 270 days. The commercial paper is accessible in

  • Q : Which currency is utilized in an

    Which currency has to be utilized in an international acquisition in order to compute the flows?

  • Q : Understand and interpret financial

    Our purpose this week: learning how to understand and interpret financial statements. Assignment: The class should discuss all of the questions listed below as they rel

  • Q : Convertible Bonds-Corporate Bonds State

    State the term Convertible Bonds in Corporate Bonds?

  • Q : Problem regarding purchasing machine

    Alger Corp needs to buy some construction equipment for $50,000 that has a helpful life of 4 years with no salvage value. The Alger utilizes straight-line depreciation. Alger contains a tax rate of 30%, and it employs a discount rate of 10%. The equipment will produce