--%>

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 : Provide three examples of mutually

    provide three examples of mutually exclusive projects?

  • Q : Explain the definition of WACC An

    An investment bank computed my WACC. The report is as: “the definition of the WACC is defined as WACC = RF + βu (RM – RF); here RF being the risk-free rate and βu the unleveraged beta and RM the market risk rate.” It is differ from what we

  • Q : Problem on HIBOR Below are the

    Below are the three-month HIBOR and three-year EFN futures (that is, Exchange Fund Note) prices for the September 2010 contracts.a) Find out the HIBOR in three-months for settling the future contract utilizing the quotation on August 16.

    Q : Explain any indisputable model for

    Is there any indisputable model for valuing the brand of a company?

  • 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 : Which parameter good measures value

    Which parameter good measures value creation; the Economic Value Added (EVA), the CVA (Cash Value Added) or the economic profit?

  • Q : Problem on EBIT ABC Corporation stock

    ABC Corporation stock sells at $27 per share and its dividend per share is $1.20. ABC has price-earnings ratio of 16. The company contains $40 million worth of bonds, selling at par, with 8.5% coupon. The EBIT of ABC is of $12 million and its tax rate is 30%. Calculat

  • Q : What are flow variables Flow variables

    Flow variables: Any variable, whose magnitude is evaluated over a time period, is termed as glow variable.

  • Q : Markets are expected to be Volatile

    When Markets are expected to be Volatile: For the bear and bull strategy to yield gains, it is essential that the trader takes a view on the direction of the market i.e. either bearish or bullish, and accordingly implement the strategic choice. More o

  • Q : Why do a Split Why do a Split?

    Why do a Split?