A) A portfolio that consists of a long position in the risk-free investment is known as a levered portfolio.
B) The optimal portfolio will not depend on the investor's personal tradeoff between risk and return.
C) The volatility of the risk-free investment is zero.
D) Our total volatility is only a fraction of the volatility of the efficient portfolio, based on the amount we invest in the risk free asset.
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Multiple Choice
A) The expected return of a portfolio should correspond to the portfolio's beta.
B) Graphically the line through the risk-free investment and the market portfolio is called the capital market line (CML) .
C) The beta of a portfolio is the weighted average beta of the securities in the portfolio.
D) By holding a negative beta security, an investor can reduce the overall market risk of her portfolio.
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Multiple Choice
A) An investor's preferences will determine only how much to invest in the tangent or efficient portfolio versus the risk-free investment.
B) Conservative investors will invest a small amount in the tangent or efficient portfolio, choosing a portfolio on the line near the risk-free investment
C) Only aggressive investors will choose to hold the portfolio of risky assets, the tangent or efficient portfolio.
D) Aggressive investors will invest more in the tangent portfolio choosing a portfolio that is near the tangent portfolio or even beyond it by buying stocks on margin.
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Multiple Choice
A) 9%
B) 14%
C) 11%
D) 12%
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Multiple Choice
A) The Sharpe ratio if the portfolio tells us how much our expected return will increase for a given increase in volatility.
B) We should continue to trade securities until the expected return of each security equals its required return.
C) The required return is the expected return that is necessary to compensate for the risk that an investment will contribute to the portfolio.
D) If security i's required return exceeds its expected return, then adding more of it will improve the performance of the portfolio.
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Multiple Choice
A) Dividing the covariance by the volatilities ensures that correlation is always between -1 and +1.
B) Volatility is the square root of variance.
C) The closer the correlation is to 0, the more the returns tend to move together as a result of common risk.
D) If two stocks move together, their returns will tend to be above or below average at the same time, and the covariance will be positive.
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Multiple Choice
A) 11.4%
B) 11.8%
C) 12.0%
D) 12.6%
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Multiple Choice
A) The market portfolio is the efficient portfolio.
B) Many practitioners believe it is sensible to use the CAPM and the security market line as a practical means to estimate a stock's required return and therefore a firm's equity cost of capital.
C) If we plot individual securities according to their expected return and beta, the CAPM implies that they should all fall along the CML.
D) As savvy investors attempt to trade to improve their portfolios, they raise the price and lower the expected return of the positive alpha stocks, and they depress the price and raise the expected return of negative alpha stocks, until the stocks are once again on the security market line and the market portfolio is efficient.
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Multiple Choice
A) 72%
B) 92%
C) 110%
D) 140%
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Multiple Choice
A) -25% in the risk-free asset and +125% in the market portfolio
B) -20% in the risk-free asset and +120% in the market portfolio
C) 0% in the risk-free asset and +100% in the market portfolio
D) 20% in the risk-free asset and +80% in the market portfolio
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Multiple Choice
A) Stock returns will tend to move together if they are affect similarly by economic events.
B) Stocks in the same industry tend to have more highly correlated returns than stocks in different industries.
C) Almost all of the correlations between stocks are negative, illustrating the general tendency of stocks to move together.
D) With a positive amount invest in each stock, the more the stocks move together and the higher their covariance or correlation, the more variable the portfolio will be.
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Multiple Choice
A) -0.3
B) -0.6
C) 0.3
D) 0.6
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Multiple Choice
A) When stocks are perfectly positively correlated, the set of portfolios is identified graphically by a straight line between them.
B) An investor seeking high returns and low volatility should only invest in an efficient portfolio.
C) When the correlation between securities is less than 1, the volatility of the portfolio is reduced due to diversification.
D) Efficient portfolios can be easily ranked, because investors will choose from among them those with the highest expected returns.
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Multiple Choice
A) .72
B) .63
C) .40
D) .50
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Multiple Choice
A) The volatility declines as the number of stocks in a portfolio grows.
B) An equally weighted portfolio is a portfolio in which the same amount is invested in each stock.
C) As the number of stocks in a portfolio grows large, the variance of the portfolio is determined primarily by the average covariance among the stocks.
D) When combining stocks into a portfolio that puts positive weight on each stock, unless all of the stocks are uncorrelated with the portfolio, the risk of the portfolio will be lower than the weighted average volatility of the individual stocks.
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Multiple Choice
A) .53
B) .58
C) .61
D) .79
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Multiple Choice
A) 1.3
B) 1.0
C) 0.6
D) 0.8
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Multiple Choice
A) 10.0%
B) 11.4%
C) 11.8%
D) 12.0%
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Multiple Choice
A) E[RxCML] = rf + x(E[RMkt] + rf)
B) ri = rf + b(E[RMkt] - rf)
C) SD(RxCML) = xSD(RMkt)
D) E[RxCML] = (1 - x) rf + xE[RMkt]
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Essay
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