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Wednesday, February 10, 2010, 8:00AM ET - U.S. Markets open in 1 hour and 30 minutes. Dow Up 1.52% Nasdaq  0.00%
Calvert Tax-Free Bond A (CTTLX)On Feb 9: 15.69  Down 0.01 (0.06%)  
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Risk  As of 31-Jan-10Get Risk for:
RISK OVERVIEW 
Morningstar Risk Rating:Average
Number of Years Up:4
Number of Years Down:1
Best 1 Yr Total Return (2009):9.50%
Worst 1 Yr Total Return (2008):-5.18%
RISK (MODERN PORTFOLIO THEORY) STATISTICS 
3 Years
StatisticCTTLXCategory
Alpha (against Standard Index)-2.57-2.36
Beta (against Standard Index)1.011.17
Mean Annual Return2.040.24
R-squared (against Standard Index)9387.25
Standard Deviation6.277.62
Sharpe Ratio0.04N/A
Treynor Ratio0.06N/A
5 Years
StatisticCTTLXCategory
Alpha (against Standard Index)-1.57-1.43
Beta (against Standard Index)1.001.15
Mean Annual Return2.600.25
R-squared (against Standard Index)9387.35
Standard Deviation5.076.11
Sharpe Ratio-0.03N/A
Treynor Ratio-0.31N/A
10 Years
StatisticCTTLXCategory
Alpha (against Standard Index)-1.21-1.26
Beta (against Standard Index)1.091.11
Mean Annual Return4.830.41
R-squared (against Standard Index)9388.38
Standard Deviation5.255.55
Sharpe Ratio0.39N/A
Treynor Ratio1.84N/A

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