--%>

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 : 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 : Problem on Yield to maturity Shawna

    Shawna desires to invest her recent bonus in a 4-year bond which pays a coupon of 11 % semi-annually. The bonds are selling at $962.13 nowadays. When she buys such bond and holds it to the maturity, what would be her yield? (Round to the nearest answer.) (i) 11.5%&nbs

  • Q : Low-discrepancy sequence or quasi

    Who proposed definition and development of low-discrepancy sequence theory or quasi random number theory?

  • Q : Explain Corporate Development Corporate

    Corporate Development: Corporate development is a term which references the range of planning options and strategies which can assist to move a company toward its targets. The procedure of this kind of strategic development can be exerted to just abou

  • Q : What is Project Budget Project Budget :

    Project Budget: Collecting all costs related with completing a project is budget process. The Project Management Institute states that "aggregating the predictable costs of individual actions or work projects (establishing) an authorized cost baseline

  • Q : Do expected equity flows coincide with

    Do expected equity flows coincide along with expected dividends?

  • Q : Applied approaches to theory development

    Discuss and distinguish between the following applied approaches to theory development:  true-income (income statement and balance sheet approaches), efficient markets, and predictive ability.  You may want to include in your discussion any articles or studies that either supported or u

  • Q : How could we acquire an indisputable

    How could we acquire an indisputable discount rate?

  • Q : Illustrates financial consultant has

    A financial consultant obtains various valuations of my company when this discounts the Free Cash Flow (FCF) as opposed to when this uses the Equity Cash Flow. Is it correct?

  • Q : Portfolio return probability XY Company

    XY Company has made a portfolio of such three securities: The correlation coeffic