Question
The administrator of a large pension fund wants to evaluate the performance of four portfolio managers. Each portfolio manager invests only in U.S. common stocks.
The administrator of a large pension fund wants to evaluate the performance of four portfolio managers. Each portfolio manager invests only in U.S. common stocks. Assume that during the most recent 5-year period, the average annual total rate of return including dividends on the S&P 500 was 14%, and the average nominal rate of return on government Treasury bills was 8%. The following table shows risk and return measures for each portfolio: Portfolio
Average Annual Rate of Return
Standard Deviation of Return
Beta
P
17%
20%
1.1
Q
24
18
2.1
R
11
10
0.5
S
16
14
1.5
S&P 500
14
12
1.0
Portfolio X
10%
18%
0.60
S&P 500
12
13
1.00
T-bills
6
N/A
N/A
Calculate the Treynor and Sharpe measures for both portfolio X and the S&P 500. Briefly explain whether portfolio X underperformed, equaled, or outperformed the S&P 500 on a risk- adjusted basis using both the Treynor measure and the Sharpe ratio.
b. On the basis of 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 ratio.
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