--%>

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 : Does the book value of the debt

    Does the book value of the debt all the time coincide with its market value?

  • Q : Leverage ratio problem Handy Inc has

    Handy Inc has debt-to-assets ratio of 40%, tax rate of 35%, and total value of $100 million. W. C. Handy, the CFO, would like to increase the leverage ratio to 42%, and he believes that there will be no change in the bankruptcy cost of the company. How many dollars wo

  • Q : What are the different types of

    What are the different types of mathematics found in quantitative finance?

  • Q : Explain undervaluation of share on the

    Suppose we calculate g as ROE (1–p)/(1–ROE (1–p)) and the Ke by the CAPM. We replace both values into the formula PER = (ROE (1+g) – g)/ROE (Ke-g) but there PER we obtain is fully different from the one we get by dividing the quotation of the s

  • Q : How much confidence can an investor

    I heard conversation of the Earnings Yield Gap ratio, that is the difference among the inverse of the PER and the TIR on 10-year-bonds. This is said that if this ratio is positive then this is more advantageous to invest in equity. How much confidence can an investor

  • Q : Finance You expect KT industries (KTI)

    You expect KT industries (KTI) will have earnings per share of $3 this year and expect that they will pay out $1.50 of these earnings to shareholders in the form of a dividend. KTI's return on new investments is 15% and their equity cost of capital is 12%. The value of a share of KTI's stock is clos

  • Q : Problem on Bond Price Kevin is

    Kevin is interested in buying a 5-year bond which pays a coupon of 10 % on a semi-annual basis. The present market rate for similar bonds is 8.8 %. What must be the present price of this bond? (Round to the closest dollar.) (a) $1,048  (b) $965  (c) $1,099&n

  • Q : Assessing market expectations using CAPM

    Assume that the risk-free rate is 1% and the expected market return is 9%. You are considering purchasing Super Soft stock, which currently sells for $100 a share and will pay its next (annual) dividend of $1.00 exactly one year from today. Super Soft is considered to

  • Q : Who explained market-neutral delta

    Who explained market-neutral delta hedging?

  • Q : Portfolio return probability XY Company

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