An analyst wants to evaluate Portfolio X consisting entirely of US common stocks, using both the Treynor and Sharpe measures of the portfolio performance. The following table provides the average annual rate of return for the portfolio X the market portfolio (as measured by the Standard & Poor's 500 index) and US Treasury billds (Tbills) during the past eight years                                                       Average Return Standard deviation Beta                           Portfolio X 10% 18% 0.6                           S & P 500 12% 13% 1                           T bills 6% n/a n/a                                                             a. Calculate both the Treynor measure and the Sharpe measure for both Portfolio X and the S&P 500. Briefly explain whether portfolio X underperformed, equalled, or outperformed the S&P 500 on a risk-adjusted basis using both the Treynor measure and the Sharpe measure.  b. Based on the performance of Portfolio X relative to the S&P 500 calculated in part a, briefly explain the reason for the conflicting results when using the Treynor measure versus the Sharpe measure.

Essentials Of Investments
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ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
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An analyst wants to evaluate Portfolio X consisting entirely of US common stocks, using both the Treynor and Sharpe measures of the portfolio performance. The following table provides the average annual rate of return for the portfolio X the market portfolio
(as measured by the Standard & Poor's 500 index) and US Treasury billds (Tbills) during the past eight years                  
                                 
  Average Return Standard deviation Beta                          
Portfolio X 10% 18% 0.6                          
S & P 500 12% 13% 1                          
T bills 6% n/a n/a                          
                                 
a. Calculate both the Treynor measure and the Sharpe measure for both Portfolio X and the S&P 500. Briefly explain whether portfolio X underperformed, equalled, or outperformed the S&P 500 on a risk-adjusted basis using both the Treynor measure and the Sharpe measure.
 b. Based on the performance of Portfolio X relative to the S&P 500 calculated in part a, briefly explain the reason for the conflicting results when using the Treynor measure versus the Sharpe measure.    
                                 
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