--%>

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 : Low-discrepancy sequence or quasi

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

  • Q : How you can predict future evolution of

    Could we suppose that, as we cannot predict the future evolution of the value of shares, a good estimation would be to consider this constant during the next five years?

  • Q : What is the required rate of return on

    Woidtke Manufacturing's stock currently sells for $29 a share. The stock just paid a dividend of $2.50 a share (i.e., D0 = $2.50), and the dividend is expected to grow forever at a constant rate of 9% a year. What st

  • Q : What is Net Operating Profit after Tax

    What is Net Operating Profit after Tax (NOPAT)?

  • Q : NPV and Other Investment Criteria The

    The XYZ Manufacturing Company is considering the below investment proposal. The initial investment is $100,000. It was an expected economic life of 10 years. The net cash flow in the initial year is expected to be $25,000 and annual net cash flow is expected to develo

  • Q : Benefits of Cash to cash analysis

    Benefits of Cash to cash analysis: The benefits of Cash to cash analysis are as following: 1. Helps in better cash management situation thus, increasing liquidity. 2. The cash a

  • Q : Calculate valuation realized by

    Is a valuation realized through a prestigious investment bank a scientifically approved result that any investor could utilize as a reference?

  • Q : Who explain match theoretical & market

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

  • Q : Which data is the most suitable for

    Which data is the most suitable for finding betas?

  • Q : Llustrate illiquidity risk and small

    My investment bank told me that beta given by Bloomberg incorporates the illiquidity risk and small cap premium since Bloomberg does well-known Bloomberg adjustment formula. Is it true?