0000701039 2011-02-01 2012-01-31 0000701039 cf2:S000005148Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000005150Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000005151Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000013508Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000024475Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000025875Member cf2:RetailMember 2011-02-01 2012-01-31 0000701039 cf2:S000005148Member cf2:ClassIMember 2011-02-01 2012-01-31 0000701039 cf2:S000005150Member cf2:ClassIMember 2011-02-01 2012-01-31 0000701039 cf2:S000024475Member cf2:ClassIMember 2011-02-01 2012-01-31 0000701039 cf2:S000025875Member cf2:ClassIMember 2011-02-01 2012-01-31 CALVERT FUND Other 2011-09-30 0000701039 false 2012-11-01 2012-11-01 2012-01-31 <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundCALVERT INCOME FUNDS PROSPECTUS (CLASS I) DATED JANUARY 31, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS A, B, C, O AND Y)  DATED JANUARY 31, 2012, AS REVISED APRIL 27, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Long-Term Income Fund Calvert Ultra-Short Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS I) DATED JANUARY 31, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS I) DATED JANUARY 31, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS I) DATED JANUARY 31, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%">SUPPLEMENT TO CALVERT INCOME FUNDS PROSPECTUS (CLASS I) DATED JANUARY 31, 2012 Calvert Income Fund Calvert Short Duration Income Fund Calvert Government Fund Calvert High Yield Bond FundDate of Supplement: November 1, 2012After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following:Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div>