--%>

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 : Problems under Time Value of Money One

    One of the projects the US loan would fund is to build earthquake-resistant buildings. The projectwill begin in March 2013, last for two years and is expected to have the following expenditures:start-up costs of $200,000 paid at the beginning of the first month; renta

  • Q : Financial statements The concept of

    The concept of conservatism has been influential in the development of accounting theory and practice.  A major effect of conservatism is that accountants tend to recognize losses but not gains.  For example, when the value of an asset is impaired, it is wri

  • Q : Calculating Beta when market

    A company with a market capitalization of $100 million has no debt and a beta of 0.8. What will its beta be after it borrows $50 million (giving that there are no other changes and no taxes)?

  • Q : Is the price of futures the excellent

    Is the price of futures the excellent estimate of €/$ exchange rate?

  • Q : Explain the structure

    Our company (A) is going to buy the other company (B). We need to value the shares of B and, thus, we will use three options of the structure Debt/Shareholders’ Equity in order to obtain the WACC as: 1) Present structure of A

  • Q : How WACC should be computed to begin a

    I cannot seem to begin a valuation. In order to compute E + D = VA (FCF; WACC) I require the WACC and to compute the WACC I need D and E. Where must I start?

  • Q : Road King Trucks Project I want to know

    I want to know how much do you charge for doing the project?

  • Q : Problem on exponential growth rate

    Atlanta Company stock is predicted to follow an exponential growth rate. The relationship among the current stock price P0, future price PT after time T, and continuously compounded rate of the return r, is: PT = P0eγT. The stock doesn’t pay any

  • Q : Problem on stock market John Wong is a

    John Wong is a fresh graduate and has a limited amount of funds for investments. He expects that the Hong Kong stock market will fall soon but he is not familiar with derivatives. In order to gain more money to buy a car, he explores engaging in Hang Seng Index (HSI)

  • Q : Problem on Corp stocking Cheever Corp

    Cheever Corp stock is selling at $40 a share. Its dividend in subsequent year will be $2 a share and its β is 1.25. Crane Company has similar growth rate as Cheever. The current stock price of Crane is $55 a share, and its dividend this year is $3. The riskless r