--%>

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 : MIRR & IRR Projects Answer using

    Answer using Microsoft Word and your answer should be between 100 and 150 words Question1. Identify the major

  • Q : Which frame work does not give very

    Which model of frame work does not provide the very good prices for bonds?

  • Q : Mm ase Study 1 You work in Walt Disney

    ase 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 will

  • Q : Define Initial public offering or IPO

    Initial public offering: An initial public offering (IPO) otherwise called as stock market launch, is the first time company selling stock to public. Usually raised for capital expansion and to become publicly traded company. Investment banking firms

  • Q : Data Case Please assist with the

    Please assist with the attached Data Case assignment

  • 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 : Do expected equity flows coincide with

    Do expected equity flows coincide along with expected dividends?

  • Q : Long-Term Financing Needed Long-Term

    Long-Term Financing Needed : - At year-end 2012, total assets for Ambrose Inc. were $1.2 million and accounts payable were $375,000. Sales, which in 2012 were $2.5 million, are expected to increase by 25% in 2013. Total ass

  • Q : Briefly describe the financial services

    1 FINANCIAL SERVICES BY BANKS Financial system facilitates the transformation of savings of individuals, government as well as business into investment and consumption. It consists of

  • Q : Who explain match theoretical & market

    Who demonstrated that how to match theoretical and market prices for normal bonds?