--%>

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 : Problem on stock market John Wong is a

    John Wong is a fresh graduate and has a limited amount of funds for investments. He expects that the Hong Kong stock market will fall soon but he is not familiar with derivatives. In order to gain more money to buy a car, he explores engaging in Hang Seng Index (HSI)

  • Q : How could we project exchange rates How

    How could we project exchange rates within order to be capable to forecast exchange differences?

  • Q : Do expected equity flows coincide with

    Do expected equity flows coincide along with expected dividends?

  • Q : Which frame work does not give very

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

  • Q : Public Finance which type of tax,

    which type of tax, direct or indirect is applicable in underdeveloped countries? Why? Show your critical areas and weaknesses.

  • Q : Estimate stock's current price A

    A company currently pays a dividend of $3.75 per share, D0 = 3.75. It is estimated that the company's dividend will grow at a rate of 15% percent per year for the next 2 years, then the dividend will grow at a constant rate of 7% the

  • 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 : Problem on Bank branch networks While

    While banks across the United States and Europe are cutting down their number of branches, the number of bank branches in Hong Kong has increased in the same period. Hong Kong Monetary Authority statistics show the number of bank branches in Hong Kong at the end of 20

  • Q : Illustrates the Gordon and Shapiro

    What is the importance and the utility of the given formula: Ke = DIV(1+g)/P + g?

  • Q : Intrnational financer what are the

    what are the objectives of international finance