--%>

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 : Explain the result of volatility

    Explain the result of volatility structure.

  • Q : How can optimal capital structure be

    How can optimal capital structure be calculated?

  • 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 : EPS problem XY Corporation is an all

    XY Corporation is an all equity firm with a total value of $20 million. It needs an additional capital of $5 million, which may be either equity, or debt at the interest rate of 10%. After the new capitalization, the expected EBIT is $5 million, with standard deviatio

  • Q : Capital Structure Case Study 1 You work

    Case Study 1 You work in Walt Disney Company's corporate finance and treasury department and have just been assigned to the team estimating later today. You quickly realize that the information you need is readily available online. 1) Go to http://finance.yahoo.com. under " Market Summary," you

  • Q : Minimum pretax earnings XYZ Company is

    XYZ Company is planning to acquire a machine which will cost $200,000, that will last for 4 years. The company employs straight-line depreciation. The tax rate of XYZ is 35% and the proper discount rate in this situation is 12%. (A

  • Q : How could we project exchange rates How

    How could we project exchange rates within order to be capable to forecast exchange differences?

  • Q : An example of use beta of Kinepolis in

    A financial consultant is valuing the company I set as an objective (an entertainment centre) by discounting the cash flows until the end of the dealership at 7.26% (interest rate on 30-year-bonds = 5.1%; market premium = 5%, and Beta = 0.47%). 0.47 is a beta provided

  • Q : Explain influences of financial

    Does financial leverage (i.e. debt) have any influence on the Free Cash Flow, upon the Cash Flow to Shareholders, upon the growth of the company and upon the value of the shares?

  • Q : Expected return and standard deviation

    If an investor is considered to be risk-averse, what is his/her attitude towards expected return and standard deviation?