--%>

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 are Workpapers Workpapers : In

    Workpapers: In finance world, work papers are documents which are created during the procedure of computing the financial records of a business or individual. The accounting professional which is tasked with examining the book-keeping of a business mi

  • 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 : Which capital structure must consider

    Which capital structure must we consider when estimating the WACC for a subsidiary valuation: the one which is reasonable according to the risk of the subsidiary’s business that the average of the company or the one the subsidiary as “tolerates/per

  • Q : Cost of Equity AB Corporation has 16%

    AB Corporation has 16% cost of equity, 35% tax rate, and debt-to-equity ratio of 30%. XY Corporation has 30% tax rate and debt-to-equity ratio of 40%. Both AB and XY are in the same business of selling automotive parts. If the riskless rate is 4% and the expected retu

  • Q : Which method must use to valuate young

    Which method must we use to valuate young companies along with high growth but uncertain futures? Two illustrations were Boston Chicken and Telepizza while they began.

  • Q : Financing EBIT problem Rusk Inc needs

    Rusk Inc needs $50 million in new capital that it might obtain by selling bonds at par with coupon of 12% or by selling stock at $40 (net) per share. The current capital structure of Rusk consists of $300 million (face value) of 10% coupon bonds selling at 90 and 10 m

  • Q : Evaluating Beta of a Corporation

    Baldwin Corporation is planning to expand into the business of providing on-demand movies. Baldwin has debt-to-equity ratio of .25, its pretax cost of debt is 9%, and its marginal tax rate is 40%. The Harrington Corporation is already in the on-demand movie business,

  • Q : Is this possible to make money in the

    Is this possible to make money in the stock market while the quotations are going down? And what is credit sale?

  • Q : Company Valuation Project Hello, Need a

    Hello, Need a top-notch finance expert to complete a company valuation assignment for me for a class. Will attach details. Please inform me if you have your graduate level resource who is good with company valuations and executive summary writeup of the analysis please. English writing skills ar

  • Q : Describe nominal gross domestic product

    Nominal gross domestic product: If GDP of a particular year is estimated on the base of price of similar year, it is termed as nominal GDP.