Calvert - Calvert Funds

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| | | Yields

Calvert - Calvert Funds - Yields

Fund Type:

As of 5/8/2008
Class	Average Maturity (rounded to the nearest year or day)	Daily 30-day SEC Yield
Calvert Income Fund (CFICX)
A	9 Years	5.36
B	9 Years	4.74
C	9 Years	4.86
Calvert Long-Term Income Fund (CLDAX)
A	11 Years	4.33
Calvert National Municipal Intermediate Fund (CINMX)
A	9 Years	2.84
Calvert Short Duration Income Fund (CSDAX)
A	3 Years	5.33
C	3 Years	4.68
Calvert Social Investment Fund Bond Portfolio (CSIBX)
A	6 Years	4.72
B	6 Years	3.92
C	6 Years	4.11
Calvert Tax-Free Reserves Limited-Term Portfolio (CTFLX)
A	1 Years	2.06
Calvert Tax-Free Reserves Long-Term Portfolio (CTTLX)
A	14 Years	3.84
Calvert Tax-Free Reserves Vermont Municipal Portfolio (CGVTX)
A	11 Years	3.32
Calvert Ultra-Short Floating Income Fund (CULAX)
A	40 Days	5.31

Yield is annualized and compounded.

For more information on any Calvert fund, please contact your financial advisor or call Calvert at 800.368.2748 for a free prospectus. An investor should consider the investment objectives, risks, charges, and expenses of an investment carefully before investing. The prospectus contains this and other information. Read it carefully before you invest or send money.

Calvert mutual funds are underwritten and distributed by Calvert Distributors Inc., member FINRA, a subsidiary of Calvert Group, Ltd. 1-800-368-2748

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