CHY / Calamos Convertible and High Income Fund - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Calamos Convertible and High Income Fund
US ˙ NasdaqGS ˙ US12811P1084

Mga Batayang Estadistika
LEI 549300S5PS2P178Z6N82
CIK 1222719
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Calamos Convertible and High Income Fund
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 29, 2025 424B3

CALAMOS CONVERTIBLE AND HIGH INCOME FUND (the “Fund”) Supplement dated September 1, 2025 to the CALAMOS® FAMILY OF FUNDS (the “Funds”) Statement of Additional Information, dated February 21, 2025, as supplemented

Filed pursuant to Rule 424(b)(3) File No. 333-285119 CALAMOS CONVERTIBLE AND HIGH INCOME FUND (the “Fund”) Supplement dated September 1, 2025 to the CALAMOS® FAMILY OF FUNDS (the “Funds”) Statement of Additional Information, dated February 21, 2025, as supplemented This supplement updates certain information contained in the Statement of Additional Information noted above and should be attached to

May 12, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

April 25, 2025 CORRESP

April 25, 2025

CORRESP 1 filename1.htm April 25, 2025 Mr. John Kernan Chief Accounting Office Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Re: Calamos Global Total Return Fund (“CGO”) (File No. 811-2547); Calamos Convertible and High Income Fund (“CHY”) (File No. 811-21319); Calamos Convertible Opportunities and Income Fund (“CHI”) (File No. 811-21080); Calamos Global Dynamic Income F

February 24, 2025 424B5

Calamos Convertible and High Income Fund Up to 17,140,125 Common Shares

Filed pursuant to Rule 424(b)(5) File No. 333-285119 Prospectus Supplement (To Prospectus dated February 21, 2025) Calamos Convertible and High Income Fund Up to 17,140,125 Common Shares Calamos Convertible and High Income Fund (the “Fund,” “we,” “us,” or “our”) has entered into a distribution agreement dated February 24, 2025 (the "Distribution Agreement") with Foreside Fund Services, LLC (the "D

February 21, 2025 EX-99.(K)(1)(VIII)

Sixth Amendment to the Amended and Restated Stock Transfer Agency Agreement

Exhibit k.1.viii Sixth Amendment to the Amended and Restated Stock Transfer Agency Agreement THIS SIXTH AMENDMENT (“Amendment”), effective as of March 24, 2022 (“Effective Date”), is to the Amended and Restated Stock Transfer Agency Agreement (the “Agreement”), made as of June 15, 2007, and amended as of March 20, 2015, September 6, 2017, October 18, 2017, August 24, 2021, and February 28, 2022, b

February 21, 2025 EX-99.(H)(10)

FORM OF SUB-PLACEMENT AGENT AGREEMENT Foreside Fund Services, LLC Three Canal Plaza, Suite 100 Portland, Maine 04101

Exhibit h.10 Execution Version FORM OF SUB-PLACEMENT AGENT AGREEMENT Foreside Fund Services, LLC Three Canal Plaza, Suite 100 Portland, Maine 04101 February 24, 2025 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 RE: At-the-Market Offerings by Calamos Convertible and High Income Fund Ladies and Gentlemen: From time to time Foreside Fund Services, LLC (the “Distributor”, “w

February 21, 2025 EX-99.(K)(1)(X)

NINTH AMENDMENT TO THE AMENDED AND RESTATED LIQUIDITY AGREEMENT BETWEEN EACH FUND LISTED ON SCHEDULE A TO THE LIQUIDITY AGREEMENT AND STATE STREET BANK AND TRUST COMPANY

Exhibit k.1.x NINTH AMENDMENT TO THE AMENDED AND RESTATED LIQUIDITY AGREEMENT BETWEEN EACH FUND LISTED ON SCHEDULE A TO THE LIQUIDITY AGREEMENT AND STATE STREET BANK AND TRUST COMPANY This Ninth Amendment (this “Amendment”) is made this 9th day of September, 2024 and amends the Liquidity Agreement dated as of August 31, 2017, as subsequently amended, by and between each FUND LISTED ON SCHEDULE A T

February 21, 2025 EX-99.(T)

POWER OF ATTORNEY

Exhibit t POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

February 21, 2025 EX-99.(L)(4)

MO R R I S , NI C H O L S , AR S H T & TU N N E L L   L L P 1201 North Market Street P.O. BOX 1347 Wilmington, Delaware 19899-1347 (302) 658-9200 (302) 658-3989 FAX February 21, 2025

Exhibit l.4 MO R R I S , NI C H O L S , AR S H T & TU N N E L L   L L P 1201 North Market Street P.O. BOX 1347 Wilmington, Delaware 19899-1347 (302) 658-9200 (302) 658-3989 FAX February 21, 2025 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamo

February 21, 2025 EX-99.(K)(1)(VI)

Fifth Amendment to the Amended and Restated Stock Transfer Agency Agreement

Exhibit k.1.vi Fifth Amendment to the Amended and Restated Stock Transfer Agency Agreement THIS FIFTH AMENDMENT (“Amendment”), effective as of August 24, 2021, (“Effective Date”), is to the Amended and Restated Stock Transfer Agency Agreement (the “Agreement”) made as of June 15, 2007, and amended as of March 20, 2015, September 6, 2017, and October 18, 2017, between each entity set forth in Sched

February 21, 2025 EX-99.(B)(2)

CALAMOS CONVERTIBLE AND HIGH INCOME FUND AMENDMENT NO. 1 TO THE BY-LAWS

Exhibit b.2 CALAMOS CONVERTIBLE AND HIGH INCOME FUND AMENDMENT NO. 1 TO THE BY-LAWS The undersigned, being at least a majority of the Trustees of Calamos Convertible and High Income Fund (the “Trust”), hereby amend the Trust’s By-Laws, as amended and restated through August 23, 2021 (the “By-Laws”), as follows: 1. The By-Laws are hereby amended by deleting Article 12 thereof in its entirety and re

February 21, 2025 EX-FILING FEES

Calculation of Filing Fee Tables Form N-2 (Form Type) Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit S EX. FILING FEES Calculation of Filing Fee Tables Form N-2 (Form Type) Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee

February 21, 2025 N-2ASR

As filed with the Securities and Exchange Commission on February 21, 2025

As filed with the Securities and Exchange Commission on February 21, 2025 1933 Act File No.

February 21, 2025 EX-99.(K)(1)(IX)

Eighth Amendment to the Amended and Restated Stock Transfer Agency Agreement

Exhibit k.1.ix Eighth Amendment to the Amended and Restated Stock Transfer Agency Agreement THIS EIGHTH AMENDMENT (“Amendment”), effective as of September 6, 2022, (“Effective Date”), is to the Amended and Restated Stock Transfer Agency Agreement (the “Agreement”) made as of June 15, 2007, and amended as of July 1, 2012, March 20, 2015, September 6, 2017, October 18, 2017, August 24, 2021, Februar

February 21, 2025 EX-99.(N)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 99.n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement No. 333-229042 on Form N-2 of our report dated December 18, 2024, relating to the financial statements and financial highlights of Calamos Convertible Opportunities and Income Fund, Calamos Convertible and High Income Fund, Calamos Strategic Total Return Fund

February 21, 2025 EX-99.(K)(1)(VII)

Fifth Amendment to the Amended and Restated Stock Transfer Agency Agreement

Exhibit k.1.vii Fifth Amendment to the Amended and Restated Stock Transfer Agency Agreement THIS FIFTH AMENDMENT (“Amendment”), effective as of February 28, 2022, (“Effective Date”), is to the Amended and Restated Stock Transfer Agency Agreement (the “Agreement”) made as of June 15, 2007, and amended as of March 20, 2015, September 6, 2017, October 18, 2017, and August 24, 2021, between each entit

February 21, 2025 EX-99.(H)(9)

FORM OF DISTRIBUTION AGREEMENT

Exhibit h.9 Execution Version FORM OF DISTRIBUTION AGREEMENT This DISTRIBUTION AGREEMENT (this “Agreement”) made as of February 24, 2025 by and between Calamos Convertible and High Income Fund, a Delaware statutory trust (the “Fund”), and Foreside Fund Services, LLC, a Delaware limited liability company (the “Distributor”). WITNESSETH: WHEREAS, the Fund is registered under the Investment Company A

December 20, 2024 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated December 20, 2024 to the Fund's Prospectus dated February 24, 2022, as supplemented from time to time, and to the Fund's Statement of Information ("SAI") dated February 24, 2022,

424B3 1 tm2431611d1424b3.htm 424B3 Filed pursuant to Rule 424(B)(3) Registration No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated December 20, 2024 to the Fund's Prospectus dated February 24, 2022, as supplemented from time to time, and to the Fund's Statement of Information ("SAI") dated February 24, 2022, as supplemented from time to time Recent Developments

October 7, 2024 SC 13G

CHY / Calamos Convertible and High Income Fund / MetLife Investment Management, LLC Passive Investment

SC 13G 1 sayw2410070113g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* CALAMOS CONVERTIBLE & HIGH INCOME FUND (Name of Issuer) Series G Mandatory Redeemable Preferred Shares (Title of Class of Securities) 12811P*75 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Sta

September 19, 2024 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated September 19, 2024 to the Fund's Prospectus dated February 24, 2022, as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated February 24, 2022,

Filed pursuant to Rule 424(B)(3) Registration No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated September 19, 2024 to the Fund's Prospectus dated February 24, 2022, as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated February 24, 2022, as supplemented from time to time I. Recent Developments — Mandatory Redeemable Preferred

August 30, 2024 SC 13G

CHY / Calamos Convertible and High Income Fund / NORTHWESTERN MUTUAL LIFE INSURANCE CO - SC 13G Passive Investment

SC 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.  )* Calamos Convertible and High Income Fund (Name of Issuer) Series G Mandatory Redeemable Preferred Shares (Title of Class of Securities) 12811P *75 (CUSIP Number) September 9, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

May 14, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

May 14, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 14, 2024 Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 811-21319 02-0683363 (Commission File Number) (IRS Employer Identification No.

May 14, 2024 EX-3.2

CALAMOS CONVERTIBLE AND HIGH INCOME FUND AMENDMENT NO. 1 TO THE BY-LAWS

Exhibit 3.2 CALAMOS CONVERTIBLE AND HIGH INCOME FUND AMENDMENT NO. 1 TO THE BY-LAWS The undersigned, being at least a majority of the Trustees of Calamos Convertible and High Income Fund (the “Trust”), hereby amend the Trust’s By-Laws, as amended and restated through August 23, 2021 (the “By-Laws”), as follows: 1. The By-Laws are hereby amended by deleting Article 12 thereof in its entirety and re

May 8, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

October 3, 2022 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated September 30, 2022 to the Fund's Prospectus dated February 24, 2022, and as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated February 24, 20

Calamos Convertible and High Income Fund (the "Fund") Supplement dated September 30, 2022 to the Fund's Prospectus dated February 24, 2022, and as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated February 24, 2022, and as supplemented from time to time I.

June 10, 2022 SC 13G

CHY / Calamos Convertible & Hi Income Fund / MetLife Investment Management, LLC - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* CALAMOS CONVERTIBLE AND HIGH INCOME FUND (Name of Issuer) Series D Mandatory Redeemable Preferred Shares (Title of Class of Securities) 12811P*59 (CUSIP Number) August 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate

June 10, 2022 SC 13G

CHY / Calamos Convertible & Hi Income Fund / MetLife Investment Management, LLC - SC 13G Passive Investment

SC 13G 1 brhc10038610sc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* CALAMOS CONVERTIBLE AND HIGH INCOME FUND (Name of Issuer) Series E Mandatory Redeemable Preferred Shares (Title of Class of Securities) 12811P*67 (CUSIP Number) May 31, 2022 (Date of Event which Requires Filing of thi

June 7, 2022 CORRESP

* * * * *

ROPES & GRAY LLP 191 NORTH WACKER DRIVE 32nd FLOOR CHICAGO, ILLINOIS 60606-4302 WWW.

June 2, 2022 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated June 1, 2022 to the Fund's Prospectus dated March 1, 2021, as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated March 1, 2021, as supplemente

Filed pursuant to Rule 424(B)(3) Registration No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated June 1, 2022 to the Fund's Prospectus dated March 1, 2021, as supplemented from time to time and to the Fund's Statement of Information ("SAI") dated March 1, 2021, as supplemented from time to time I. Recent Developments ? Mandatory Redeemable Preferred Shares The de

May 11, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Defin

March 25, 2022 NPORT-EX

See accompanying Notes to Schedule of Investments

HTML Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JANUARY 31, 2022 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (36.

March 3, 2022 EX-FILING FEES

Filing Fee Table (**)

EX. FILING FEES Calculation of Filing Fee Tables Form N-2 (Form Type) Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amoun

March 3, 2022 N-2 POSASR

As filed with the Securities and Exchange Commission on March 3, 2022

As filed with the Securities and Exchange Commission on March 3, 2022 1933 Act File No.

March 3, 2022 424B5

Calamos Convertible and High Income Fund Up to 7,002,801 Common Shares

Filed pursuant to Rule 424(b)(5) File No. 333-262991 Prospectus Supplement (To Prospectus dated February 24, 2022) Calamos Convertible and High Income Fund Up to 7,002,801 Common Shares Calamos Convertible and High Income Fund (the "Fund," "we," "us," or "our") has entered into a distribution agreement dated March 1, 2022 (the "Distribution Agreement") with Foreside Fund Services, LLC (the "Distri

February 24, 2022 N-2ASR

As filed with the Securities and Exchange Commission on February 24, 2022

As filed with the Securities and Exchange Commission on February 24, 2022 1933 Act File No.

February 24, 2022 EX-99.N

Consent of Auditors. (**)

Exhibit 99.n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Registration Statement on Form N-2 of our report dated December 20, 2021, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund appearing in the Annual Report on Form N-CSR of Calamos Convertible and High Income Fund for the

February 24, 2022 EX-99.L.4

Opinion of Morris, Nichols, Arsht & Tunnell LLP regarding Common Shares (**)

Exhibit 99.l.4 Morris, Nichols, Arsht & Tunnell llp 1201 North Market Street P.O. Box 1347 Wilmington, Delaware 19899-1347 (302) 658-9200 (302) 658-3989 FAX February 24, 2022 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and Hi

February 24, 2022 EX-FILING FEES

Filing Fee Table (**)

Exhibit 99.s EX. FILING FEES Calculation of Filing Fee Tables Form N-2 (Form Type) Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price F

February 24, 2022 EX-99.A.1

Third Amended and Restated Agreement and Declaration of Trust (**)

Exhibit 99.a.1 Calamos Convertible and High Income Fund THIRD AMENDED AND RESTATED Agreement and Declaration of Trust This THIRD AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made on August 23, 2021, by the Trustees hereunder; WHEREAS, the Trust has been formed under the Delaware Act upon the filing of the Certificate of Trust in the Office of the Secretary of State of the State of De

February 24, 2022 EX-99.B

By-laws, as amended and restated through August 23, 2021. (**)

Exhibit 99.b Calamos Convertible and High Income Fund BY-LAWS (as amended and restated through August 23, 2021) Article 1 Agreement and Declaration of Trust 1.1 General. These By-Laws shall be subject to the Agreement and Declaration of Trust, as from time to time amended, supplemented or restated (the ?Declaration of Trust?) of Calamos Convertible and High Income Fund (the ?Trust?), a Delaware st

February 24, 2022 EX-99.H.10

Form of Sub-Placement Agent Agreement relating to Common Shares between Foreside Fund Services, LLC and UBS Securities LLC. (19)

Exhibit 99.h.10 SUB-PLACEMENT AGENT AGREEMENT Foreside Fund Services, LLC Three Canal Plaza, Suite 100 Portland, Maine 04101 [ ], 2022 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 RE: At-the-Market Offerings by Calamos Convertible and High Income Fund Ladies and Gentlemen: From time to time Foreside Fund Services, LLC (the ?Distributor?, ?we? or ?us?) will act as manager

February 24, 2022 EX-99.H.9

Form of Distribution Agreement relating to Common Shares between Registrant and Foreside Fund Services, LLC (**)

Exhibit 99.h.9 Execution Version DISTRIBUTION AGREEMENT This DISTRIBUTION AGREEMENT (this ?Agreement?) made as of [ ], 2022 by and between Calamos Convertible and High Income Fund, a Delaware statutory trust (the ?Fund?), and Foreside Fund Services, LLC, a Delaware limited liability company (the ?Distributor?). WITNESSETH: WHEREAS, the Fund is registered under the Investment Company Act of 1940, a

February 24, 2022 EX-99.T

Powers of Attorney for Virginia G. Breen, John E. Neal, William R. Rybak, Karen L. Stuckey, Christopher M. Toub.and Lloyd A. Wennlund (**)

Exhibit 99.t CHI and CHY Powers of Attorney - Virginia Breen POA POWER OF ATTORNEY The person whose signature appears below hereby appoints John P. Calamos, Sr. and J. Christopher Jackson and each of them, any of whom may act without the joinder of the others, as such person's attorney-in-fact to sign and file on such person's behalf individually and in the capacity stated below such registration

January 19, 2022 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated January 19, 2022 to the Fund's Statement of Additional Information dated March 1, 2021, and as supplemented June 30, 2021 and August 27, 2021

424B3 1 a22-26704424b3.htm 424B3 Filed pursuant to Rule 424(b)(3) File No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated January 19, 2022 to the Fund's Statement of Additional Information dated March 1, 2021, and as supplemented June 30, 2021 and August 27, 2021 Effective immediately, the tenth paragraph under the section titled "Investment Restrictions" on page

January 3, 2022 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated January 1, 2022 to the Fund's Prospectus dated March 1, 2021, and as supplemented March 5, 2021, August 27, 2021, September 30, 2021 and December 20, 2021

Filed pursuant to Rule 424(b)(3) File No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated January 1, 2022 to the Fund's Prospectus dated March 1, 2021, and as supplemented March 5, 2021, August 27, 2021, September 30, 2021 and December 20, 2021 The section titled "Effects of Leverage" beginning on page 43 of the Prospectus is deleted in its entirety and replaced w

December 20, 2021 424B3

Calamos Convertible and High Income Fund (the "Fund") Supplement dated December 20, 2021 to the Fund's Prospectus dated March 1, 2021, and as supplemented March 5, 2021, August 27, 2021 and September 30, 2021

Filed pursuant to Rule 424(b)(3) File No. 333-229038 Calamos Convertible and High Income Fund (the "Fund") Supplement dated December 20, 2021 to the Fund's Prospectus dated March 1, 2021, and as supplemented March 5, 2021, August 27, 2021 and September 30, 2021 The first paragraph of the subsection titled "Primary Investments" in the section titled "Investment Policies" on page 4 of the Prospectus

October 15, 2021 SC 13G

CHY / Calamos Convertible & Hi Income Fund / THRIVENT FINANCIAL FOR LUTHERANS Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

September 30, 2021 424B3

Calamos Convertible and High Income Fund (the “Fund”) Supplement dated September 30, 2021 to the Fund’s Prospectus dated March 1, 2021, and as supplemented March 5, 2021 and August 27, 2021

Filed pursuant to Rule 424(b)(3) File No. 333- 229038 Amendment to Prospectus Supplement (To Prospectus dated March 1, 2021) Calamos Convertible and High Income Fund (the ?Fund?) Supplement dated September 30, 2021 to the Fund?s Prospectus dated March 1, 2021, and as supplemented March 5, 2021 and August 27, 2021 All references in the Prospectus Supplement to the Distribution Agreement shall mean

September 28, 2021 NPORT-EX

See accompanying Notes to Schedule of Investments

Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JULY 31, 2021 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (33.

August 27, 2021 424B3

Calamos Convertible and High Income Fund (the “Fund”) Supplement dated August 27, 2021 to the Fund’s Prospectus dated March 1, 2021, and as supplemented March 5, 2021 and to the Fund’s Statement of Information (“SAI”) dated March 1, 2021

Filed pursuant to Rule 424(B)(3) Registration No. 333-229038 Calamos Convertible and High Income Fund (the ?Fund?) Supplement dated August 27, 2021 to the Fund?s Prospectus dated March 1, 2021, and as supplemented March 5, 2021 and to the Fund?s Statement of Information (?SAI?) dated March 1, 2021 I. Recent Developments ?Mandatory Redeemable Preferred Shares On August 24, 2021, the Fund issued 2,8

August 26, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) August 23, 2021 Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 811-21319 02-0683363 (Commission File Number) (IRS Employer Identification No.

August 26, 2021 EX-3.1

Amended and Restated Declaration of Trust of Calamos Convertible and High Income Fund dated August 23, 2021.

Exhibit 3.1 Calamos Convertible and High Income Fund THIRD AMENDED AND RESTATED Agreement and Declaration of Trust This THIRD AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made on August 23, 2021, by the Trustees hereunder; WHEREAS, the Trust has been formed under the Delaware Act upon the filing of the Certificate of Trust in the Office of the Secretary of State of the State of Delaw

August 26, 2021 EX-3.2

Amended and Restated Bylaws of Calamos Convertible and High Income Fund dated August 23, 2021.

Exhibit 3.2 Calamos Convertible and High Income Fund BY-LAWS (as amended and restated through August 23, 2021) Article 1 Agreement and Declaration of Trust 1.1 General. These By-Laws shall be subject to the Agreement and Declaration of Trust, as from time to time amended, supplemented or restated (the ?Declaration of Trust?) of Calamos Convertible and High Income Fund (the ?Trust?), a Delaware sta

May 12, 2021 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 31, 2021 NPORT-EX

See accompanying Notes to Schedule of Investments

HTML Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JANUARY 31, 2021 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (33.

March 5, 2021 424B5

Calamos Convertible and High Income Fund Up to 8,500,000 Common Shares

Filed pursuant to Rule 424(b)(5) File No. 333-229038 Prospectus Supplement (To Prospectus dated March 1, 2021) Calamos Convertible and High Income Fund Up to 8,500,000 Common Shares Calamos Convertible and High Income Fund (the "Fund," "we," "us," or "our") has entered into a distribution agreement dated March 8, 2019 (the "Distribution Agreement") with Foreside Fund Services, LLC (the "Distributo

February 19, 2021 EX-99.N

Consent of Auditors. (**)

Exhibit 99.n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Post-Effective Amendment to Registration Statement No. 333-229038 on Form N-2 of our report dated December 18, 2020, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund appearing in the Annual Report on Form N-CSR of Calamo

February 19, 2021 EX-99.R.1

Code of Ethics (18)

Exhibit 99.r.1 Table of Contents Page UNDERSTANDING AND APPLYING THE CODE 3 1. Understanding the Terms 3 2. Purpose of the Code of Ethics and Insider Trading Policy 8 3. Scope 8 4. Reporting Violations of the Code 9 CONSEQUENCES OF FAILURE TO COMPLY WITH THE CODE 9 RESTRICTIONS ON THE USE AND DISCLOSURE OF CONFIDENTIAL INFORMATION BY CALAMOS PERSONNEL 9 1. Insider Trading and Tipping 9 2. General

February 19, 2021 EX-99.A.1

Second Amended and Restated Agreement and Declaration of Trust.

Exhibit 99.a.1 Calamos convertible and high income fund SECOND Amended and restated Agreement and Declaration of Trust This SECOND AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made on January 12, 2021, by the Trustees hereunder; WHEREAS, the Trust has been formed under the Delaware Act upon the filing of the Certificate of Trust in the Office of the Secretary of State of the State of

February 19, 2021 486BPOS

- 486BPOS

As filed with the Securities and Exchange Commission on February 19, 2021 1933 Act File No.

February 19, 2021 EX-99.B

By-laws, as amended and restated through January 12, 2021.

Exhibit 99.b calamos CONVERTIBLE AND HIGH INCOME fund BY-LAWS (as amended and restated through January 12, 2021) Article 1 Agreement and Declaration of Trust 1.1 General. These By-Laws shall be subject to the Agreement and Declaration of Trust, as from time to time amended, supplemented or restated (the ?Declaration of Trust?) of Calamos Convertible and High Income Fund (the ?Trust?), a Delaware s

January 12, 2021 EX-3.1

Amended and Restated Declaration of Trust of Calamos Convertible and High Income Fund dated January 12, 2021.

Exhibit 3.1 CALAMOS CONVERTIBLE AND HIGH INCOME FUND SECOND AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST This SECOND AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made on January 12, 2021, by the Trustees hereunder; WHEREAS, the Trust has been formed under the Delaware Act upon the filing of the Certificate of Trust in the Office of the Secretary of State of the State of De

January 12, 2021 8-K

- 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) January 12, 2021 Calamos Convertible and High Income Fund (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 811-21319 02-0683363 (Commission File Number) (IRS Employer Identification No.

January 12, 2021 EX-3.2

Amended and Restated Bylaws of Calamos Convertible and High Income Fund dated January 12, 2021.

Exhibit 3.2 CALAMOS CONVERTIBLE AND HIGH INCOME FUND BY-LAWS (as amended and restated through January 12, 2021) ARTICLE 1 Agreement and Declaration of Trust 1.1 General. These By-Laws shall be subject to the Agreement and Declaration of Trust, as from time to time amended, supplemented or restated (the “Declaration of Trust”) of Calamos Convertible and High Income Fund (the “Trust”), a Delaware st

September 29, 2020 NPORT-EX

See accompanying Notes to Schedule of Investments

HTML Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JULY 31, 2020 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (39.

May 14, 2020 DEF 14A

- DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 31, 2020 NPORT-EX

NUMBER OF

Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JANUARY 31, 2020 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (45.

February 21, 2020 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No.

February 21, 2020 486BPOS

As filed with the Securities and Exchange Commission on February 21, 2020

As filed with the Securities and Exchange Commission on February 21, 2020 1933 Act File No.

February 21, 2020 EX-99.R.1

Table of Contents Page UNDERSTANDING AND APPLYING THE CODE 3 1. Understanding the Terms 3 2. Purpose of the Code of Ethics and Insider Trading Policy 8 3. Scope 8 4. Reporting Violations of the Code 9 CONSEQUENCES OF FAILURE TO COMPLY WITH THE CODE 9

Exhibit r.1 Table of Contents Page UNDERSTANDING AND APPLYING THE CODE 3 1. Understanding the Terms 3 2. Purpose of the Code of Ethics and Insider Trading Policy 8 3. Scope 8 4. Reporting Violations of the Code 9 CONSEQUENCES OF FAILURE TO COMPLY WITH THE CODE 9 RESTRICTIONS ON THE USE AND DISCLOSURE OF CONFIDENTIAL INFORMATION BY CALAMOS PERSONNEL 9 1. Insider Trading and Tipping 9 2. General Pro

February 21, 2020 EX-99.S.4

Power of Attorney for Karen L. Stuckey and Christopher M. Toub

EX-99.S.4 4 d799337dex99s4.htm POWER OF ATTORNEY FOR KAREN L. STUCKEY AND CHRISTOPHER M. TOUB Exhibit s.4 POWER OF ATTORNEY The person whose signature appears below hereby appoints John P. Calamos, Sr. and J. Christopher Jackson and each of them, any of whom may act without the joinder of the others, as such person’s attorney-in-fact to sign and file on such person’s behalf individually and in the

September 27, 2019 NPORT-EX

CHY / Calamos Convertible and High Income Fund NPORT-EX - - CALAMOS CONVERTIBLE & HIGH INCOME FUND

CALAMOS CONVERTIBLE & HIGH INCOME FUND Calamos Convertible and High Income Fund SCHEDULE OF INVESTMENTS JULY 31, 2019 (UNAUDITED) PRINCIPAL AMOUNT VALUE CORPORATE BONDS (47.

May 24, 2019 DEF 14A

CHY / Calamos Convertible and High Income Fund DEF 14A - - DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 13, 2019 EX-99.H.9

Distribution Agreement relating to Common Shares dated March 8, 2019, between Registrant and Foreside Fund Services, LLC.

Distribution Agreement Exhibit h.9 DISTRIBUTION AGREEMENT This DISTRIBUTION AGREEMENT (this “Agreement”) made as of March 8, 2019 by and between Calamos Convertible and High Income Fund, a Delaware statutory trust (the “Fund”), and Foreside Fund Services, LLC, a Delaware limited liability company (the “Distributor”). WITNESSETH: WHEREAS, the Fund is registered under the Investment Company Act of 1

March 13, 2019 EX-99.H.10

Sub-Placement Agent Agreement relating to Common Shares dated March 8, 2019, between Foreside Fund Services, LLC and UBS Securities LLC.

Sub-Placement Agent Agreement Exhibit h.10 SUB-PLACEMENT AGENT AGREEMENT Foreside Fund Services, LLC Three Canal Plaza, Suite 100 Portland, Maine 04101 March 8, 2019 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 RE: At-the-Market Offerings by Calamos Convertible and High Income Fund Ladies and Gentlemen: From time to time Foreside Fund Services, LLC (the “Distributor”, “w

March 13, 2019 POS EX

CHY / Calamos Convertible and High Income Fund CALAMOS CONVERTIBLE AND HIGH INCOME FUND

Calamos Convertible and High Income Fund As filed with the Securities and Exchange Commission on March 13, 2019 1933 Act File No.

March 7, 2019 N-Q

CHY / Calamos Convertible and High Income Fund QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville, Illinois 60563-2787 NAM

March 7, 2019 EX-99.CERT

Certification of Principal Executive Officer.

Calamos Convertible and High Income Fund N-Q EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

February 28, 2019 CORRESP

CHY / Calamos Convertible and High Income Fund

Calamos Convertible and High Income Fund ROPES & GRAY LLP 191 NORTH WACKER DRIVE 32nd FLOOR CHICAGO, ILLINOIS 60606-4302 WWW.

February 28, 2019 CORRESP

CHY / Calamos Convertible and High Income Fund

Calamos Convertible and High Income Fund CALAMOS CONVERTIBLE AND HIGH INCOME FUND 2020 Calamos Court Naperville, Illinois 60563 February 28, 2019 Securities and Exchange Commission 100 F Street N.

February 22, 2019 CORRESP

CHY / Calamos Convertible and High Income Fund

Calamos Convertible and High Income Fund CALAMOS CONVERTIBLE AND HIGH INCOME FUND 2020 Calamos Court Naperville, Illinois 60563 February 22, 2019 Securities and Exchange Commission 100 F Street N.

February 22, 2019 CORRESP

CHY / Calamos Convertible and High Income Fund

Calamos Convertible and High Income Fund ROPES & GRAY LLP 191 NORTH WACKER DRIVE 32nd FLOOR CHICAGO, ILLINOIS 60606-4302 WWW.

September 7, 2018 N-Q

CHY / Calamos Convertible and High Income Fund QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville, Illinois 60563-2787 NAM

September 7, 2018 EX-99.CERT

Certification of Principal Executive Officer.

EX-99.CERT 2 chy-ex99cert.htm CERTIFICATIONS Calamos Convertible and High Income Fund N-Q EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact n

May 11, 2018 DEF 14A

CHY / Calamos Convertible and High Income Fund DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 8, 2018 N-Q

CHY / Calamos Convertible and High Income Fund QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville, Illinois 60563-2787 NAM

March 8, 2018 EX-99.CERT

Certification of Principal Executive Officer.

Calamos Convertible and High Income Fund N-Q EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

February 27, 2018 COVER

Matthew A. Brunmeier

February 27, 2018 Matthew A. Brunmeier T +1 312 845 1376 [email protected] VIA Edgar Securities and Exchange Commission 100 F Street, NE Washington, DC 20549-4720 Re: Calamos Convertible and High Income Fund (the ?Fund?) (File Nos. 811-21319, 333-205640) Ladies and Gentlemen: On behalf of the Fund, we are filing today, pursuant to the Securities Act of 1933, as amended, and the Inves

February 27, 2018 CORRESP

CHY / Calamos Convertible and High Income Fund CORRESP

February 27, 2018 Matthew A. Brunmeier T +1 312 845 1376 [email protected] VIA EDGAR Division of Investment Management Securities and Exchange Commission 100 F Street, NE Washington, DC 20549-4720 Attention: Lisa Larkin Re: Calamos Convertible and High Income Fund (the “Registrant” or the “Fund”) (File Nos. 333-205640 and 811-21319) Dear Ms. Larkin: We are writing to respond to the c

February 27, 2018 EX-99.N

Consent of Auditors

CALAMOS CONVERTIBLE AND HIGH INCOME FUND POS 8C Exhibit 99 n. CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No. 4 to Registration Statement No. 333-205640 on Form N-2 of our report dated December 15, 2017, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund, appearing in the Stat

February 27, 2018 POS 8C

As filed with the Securities and Exchange Commission on February 27, 2018

As filed with the Securities and Exchange Commission on February 27, 2018 1933 Act File No.

February 7, 2018 EX-99.N

Consent of Auditors

CALAMOS CONVERTIBLE AND HIGH INCOME FUND POS 8C Exhibit 99 n. CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No. 3 to Registration Statement No. 333-205640 on Form N-2 of our report dated December 15, 2017, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund, appearing in the Stat

February 7, 2018 EX-99.R.1

Code of Ethics – filed herewith.

CALAMOS CONVERTIBLE AND HIGH INCOME FUND POS 8C Exhibit 99 r.1 Table of Contents Page UNDERSTANDING AND APPLYING THE CODE 8 Understanding the Terms 3 Purpose 8 Scope 8 Reporting Violations of the Code 8 CONSEQUENCES OF FAILURE TO COMPLY WITH THE CODE 9 RESTRICTIONS ON THE USE AND DISCLOSURE OF CONFIDENTIAL INFORMATION BY CALAMOS PERSONNEL 9 Insider Trading and Tipping 9 General Prohibitions 10 Mat

February 7, 2018 POS 8C

As filed with the Securities and Exchange Commission on February 7, 2018

As filed with the Securities and Exchange Commission on February 7, 2018 1933 Act File No.

February 7, 2018 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP 191 NORTH WACKER DRIVE 32nd FLOOR CHICAGO, ILLINOIS 60606-4302 WWW.

September 1, 2017 EX-99.CERT

Certification of Principal Executive Officer.

EX-99.CERT Calamos Convertible & High Income Fund - N-Q EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements ma

September 1, 2017 N-Q

Calamos Convertible & High Income Fund - QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

May 4, 2017 DEF 14A

Calamos Convertible and High Income Fund DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 3, 2017 N-Q

Calamos Convertible & High Income Fund - QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

March 3, 2017 EX-99.CERT

Certification of Principal Financial Officer.

Calamos Convertible & High Income Fund - N-Q EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

February 28, 2017 486BPOS

As filed with the Securities and Exchange Commission on February 28, 2017

486BPOS As filed with the Securities and Exchange Commission on February 28, 2017 1933 Act File No.

February 28, 2017 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Pre-Effective Amendment No.

October 27, 2016 CORRESP

Calamos Advisors LLC

Calamos Advisors LLC J. Christopher Jackson Calamos Advisors LLC 2020 Calamos Court Naperville, IL 60563-2787 (630) 245-8394 October 27, 2016 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549 Attn: Megan Miller Re: Calamos Investment Trust (?Investment Trust?) (File No. 811-05443); Calamos Advisors Trust (?Advisors Trust?) (File

September 15, 2016 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such state

September 15, 2016 N-Q

Calamos Convertible and High Income Fund N-Q (Quarterly Schedule of Portfolio Holdings)

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

May 10, 2016 DEF 14A

Calamos Convertible and High Income Fund DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

April 18, 2016 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-99.N CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No. 1 to Registration Statement No. 333-205640 on Form N-2 of our report dated December 16, 2015, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund, appearing in the Statement of Additional Information, and to the references

April 18, 2016 EX-99.L.1

Opinion of Morris, Nichols, Arsht & Tunnell LLP regarding Common Shares. (12)

EX-99.L.1 3 d143119dex99l1.htm EX-99.L.1 [Morris, Nichols, Arsht & Tunnell LLP Letterhead] April 15, 2016 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Ropes & Gray LLP 1211 Avenue of the Americas New York, NY 10036-8704 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and Hi

April 18, 2016 EX-99.H.8

Sales Agreement relating to Common Shares dated April 15, 2016, among Registrant, Calamos Advisors LLC and JonesTrading Institutional Services LLC. (12)

EX-99.H.8 2 d143119dex99h8.htm EX-99.H.8 CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 6,232,167 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SALES AGREEMENT April 15, 2016 JONESTRADING INSTITUTIONAL SERVICES LLC 780 Third Avenue, 3rd Floor New York, NY 10017 Ladies and Gentlemen: CALAMOS CONVERTIBLE AND HIGH INCOME FUND, a Delaware statutory trust (the “Fund”), CALAMOS ADVISORS LLC, a

April 18, 2016 POS EX

Calamos Convertible and High Income Fund POS EX

POS EX As filed with the Securities and Exchange Commission on April 15, 2016 1933 Act File No.

March 31, 2016 CORRESP

Calamos Convertible and High Income Fund ESP

CORRESP CALAMOS CONVERTIBLE & HIGH INCOME FUND 2020 Calamos Court Naperville, Illinois 60563 March 31, 2016 United States Securities and Exchange Commission 100 F Street N.

March 22, 2016 N-Q

Calamos Convertible and High Income Fund N-Q (Quarterly Schedule of Portfolio Holdings)

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

March 22, 2016 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

March 11, 2016 CORRESP

Calamos Convertible and High Income Fund ESP

CORRESP ROPES & GRAY LLP 1211 AVENUE OF THE AMERICAS NEW YORK, NY 10036-8704 WWW.ROPESGRAY.COM March 11, 2016 Crystal T. Travanti T +1 212 596 9128 F +1 646 728 1622 [email protected] VIA EDGAR Division of Investment Management Securities and Exchange Commission 100 F Street NE Washington, DC 20549 Attention: Jay Williamson Re: Calamos Convertible and High Income Fund (the ?Registrant

January 7, 2016 CORRESP

Calamos Convertible and High Income Fund ESP

Correspondence ROPES & GRAY LLP 1211 AVENUE OF THE AMERICAS NEW YORK, NY 10036-8704 WWW.

September 21, 2015 N-Q

Calamos Convertible and High Income Fund N-Q (Quarterly Schedule of Portfolio Holdings)

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

September 21, 2015 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

June 4, 2015 DEF 14A

Calamos Convertible and High Income Fund DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 23, 2015 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible & High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were

March 23, 2015 N-Q

Calamos Convertible and High Income Fund N-Q (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21080 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787 NAME

September 18, 2014 N-Q

Calamos Convertible & High Income Fund - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

September 18, 2014 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

May 23, 2014 DEF 14A

- DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 24, 2014 N-Q

Quarterly Schedule of Portfolio Holdings - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

March 24, 2014 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

December 26, 2013 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Trustees of Calamos Convertible and High Income Fund In planning and performing our audit of the financial statements of Calamos Convertible and High Income Fund (the “Fund”) as of and for the year ended October 31, 2013, in accordance with the standards of the Public Company Accounting Oversight Board (United

September 18, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

September 18, 2013 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

May 22, 2013 DEF 14A

- DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 25, 2013 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer

March 25, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

February 26, 2013 EX-99.S

POWER OF ATTORNEY

EX-99.S POWER OF ATTORNEY The person whose signature appears below hereby appoints John P. Calamos, Sr., Nimish S. Bhatt, James J. Boyne and J. Christopher Jackson and each of them, any of whom may act without the joinder of the others, as such person’s attorney-in-fact to sign and file on such person’s behalf individually and in the capacity stated below such registration statements, amendments,

February 26, 2013 EX-99.H.7

First Amendment to Initial Sales Agreement dated July 2, 2012. (9)

EX-99.H.7 FIRST AMENDMENT TO SALES AGREEMENT This FIRST AMENDMENT TO SALES AGREEMENT (the “Amendment”) is made and entered into with effect this 2nd day of July, 2012, by Calamos Convertible and High Income Fund, a Delaware statutory trust (the “Fund”), Calamos Advisors LLC, a Delaware limited liability company (the “Adviser”) and JonesTrading Institutional Services LLC (“Jones”). Capitalized term

February 26, 2013 486BPOS

- 486BPOS

486BPOS As filed with the Securities and Exchange Commission on February 25, 2013 1933 Act File No.

February 26, 2013 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-99.N Exhibit N CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No. 3 to Registration Statement No. 333-175076 on Form N-2 of our report dated December 14, 2012, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund, appearing in the Statement of Additional Information, and to the

September 18, 2012 N-Q

Quarterly Schedule of Portfolio Holdings - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787

September 18, 2012 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

June 28, 2012 8-A12B

the Fund’s description of Common Shares on Form 8-A, filed on June 28, 2012;

Form 8-A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 CALAMOS CONVERTIBLE AND HIGH INCOME FUND (Exact Name of Registrant as Specified in Its Charter) Delaware 02-0683363 (State of Incorporation or Organization) (I.R.S. Employer Identificati

June 28, 2012 25

- FORM 25

Form 25 OMB APPROVAL OMB Number: 3235-0080 Expires: December 31, 2014 Estimated average burden hours per response.

May 22, 2012 DEF 14A

- DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 22, 2012 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

March 22, 2012 N-Q

Quarterly Schedule of Portfolio Holdings - N-Q

N-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME

February 28, 2012 486BPOS

- 486BPOS

486BPOS As filed with the Securities and Exchange Commission on February 27, 2012 1933 Act File No.

February 28, 2012 EX-99.S

POWER OF ATTORNEY

EX-99.S 3 d275698dex99s.htm EX-99.S POWER OF ATTORNEY The person whose signature appears below hereby appoints John P. Calamos, Sr., Nimish S. Bhatt, James J. Boyne and J. Christopher Jackson and each of them, any of whom may act without the joinder of the others, as such person’s attorney-in-fact to sign and file on such person’s behalf individually and in the capacity stated below such registrat

February 28, 2012 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit N CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No.

September 30, 2011 EX-99.H.6

Sales Agreement relating to Common Shares dated September 30, 2011, among Registrant, Calamos Advisors LLC and JonesTrading Institutional Services LLC (“Initial Sales Agreement”) (333-175076). (8)

exv99whw6 Exhibit h.6 CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 6,232,167 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SALES AGREEMENT September 30, 2011 JONESTRADING INSTITUTIONAL SERVICES LLC 780 Third Avenue, 3rd Floor New York, NY 10017 Ladies and Gentlemen: CALAMOS CONVERTIBLE AND HIGH INCOME FUND, a Delaware statutory trust (the “Fund”), CALAMOS ADVISORS LLC, a Delaware limit

September 30, 2011 EX-99.S

POWER OF ATTORNEY

POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

September 30, 2011 EX-99.L.2

September 30, 2011

exv99wlw2 Exhibit l.2 September 30, 2011 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 K&L Gates LLP 70 W. Madison Street Suite 3100 Chicago, Illinois 60602 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and High Income Fund, a Delaware statutory trust (the “Trust”), in con

September 30, 2011 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Post-Effective Amendment No.

September 30, 2011 POS EX

As filed with the Securities and Exchange Commission on September 30, 2011

As filed with the Securities and Exchange Commission on September 30, 2011 1933 Act File No.

September 30, 2011 EX-99.L.1

K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 September 30, 2011

Exhibit l.1 K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 September 30, 2011 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Ladies and Gentlemen: We have acted as your counsel in connection with the Registration Statement on Form N-2 (File No. 333-175076), as amended by post-effective amendment no. 1 (the “Registration

September 19, 2011 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

September 19, 2011 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

exv99wcert CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

August 26, 2011 CORRESP

-

August 26, 2011 Eric S. Purple D 202.778.9220 F 202.778.9100 [email protected] Mr. Larry Greene Division of Investment Management Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Calamos Convertible and High Income Fund 333-175076 811-21319 Dear Mr. Greene: This letter responds to the comments contained in your letter dated July 28, 2011, regarding the initial Reg

August 26, 2011 CORRESP

-

corresp Calamos Advisors, LLC 2020 Calamos Court Naperville, IL 60563 August 26, 2011 BY EDGAR Securities and Exchange Commission 100 F Street, N.

August 26, 2011 CORRESP

-

corresp Calamos Advisors, LLC 2020 Calamos Court Naperville, Illinois 60563 Phone: 630-245-7200 www.

May 25, 2011 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 25, 2011 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

March 25, 2011 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

exv99wcert CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

March 1, 2011 EX-99.2.L.2

[Letterhead of Morris, Nichols, Arsht & Tunnell LLP] March 1, 2011

exv99w2wlw2 Exhibit l.2 [Letterhead of Morris, Nichols, Arsht & Tunnell LLP] March 1, 2011 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 K&L Gates LLP 70 W. Madison Street Suite 3100 Chicago, Illinois 60602 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and High Income Fund

March 1, 2011 EX-99.2.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No.

March 1, 2011 486BPOS

As filed with the Securities and Exchange Commission on March 1, 2011

As filed with the Securities and Exchange Commission on March 1, 2011 1933 Act File No.

March 1, 2011 EX-99.2.L.1

K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 March 1, 2011

Exhibit l.1 K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 March 1, 2011 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Ladies and Gentlemen: We have acted as your counsel in connection with the Registration Statement on Form N-2 (File No. 333-146947), as amended by post-effective amendment no. 6 (the “Registration Stat

March 1, 2011 EX-99.2.S

POWER OF ATTORNEY

exv99w2ws POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

September 21, 2010 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

exv99wcert CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

September 21, 2010 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

nvq UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME

May 17, 2010 POS EX

As filed with the Securities and Exchange Commission on May 14, 2010

As filed with the Securities and Exchange Commission on May 14, 2010 1933 Act File No.

May 17, 2010 EX-99.J

Custody Agreement. (6)

exv99wj Exhibit j1 Execution Copy Master Custodian Agreement This Agreement is made as of September 11, 2009 by and among each management investment company identified on Appendix A hereto (each such investment company and each management investment company made subject to this Agreement in accordance with Section 19.

May 17, 2010 EX-99.H.6

CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SECOND AMENDED AND RESTATED SALES AGREEMENT

exv99whw6 Exhibit h.6 CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SECOND AMENDED AND RESTATED SALES AGREEMENT May 14, 2010 JONESTRADING INSTITUTIONAL SERVICES LLC 780 Third Avenue, 3rd Floor New York, NY 10017 Ladies and Gentlemen: CALAMOS CONVERTIBLE AND HIGH INCOME FUND, a Delaware statutory trust (the “Fund”), CALAMOS ADVISORS

May 17, 2010 EX-99.R.1

CALAMOS ASSET MANAGEMENT, INC. CALAMOS ADVISORS LLC CALAMOS FINANCIAL SERVICES LLC CALAMOS PARTNERS LLC CALAMOS WEALTH MANAGEMENT LLC CALAMOS INVESTMENT TRUST CALAMOS ADVISORS TRUST CALAMOS CONVERTIBLE OPPORTUNITIES AND INCOME FUND CALAMOS CONVERTIBL

Exhibit r.1 CALAMOS ASSET MANAGEMENT, INC. CALAMOS ADVISORS LLC CALAMOS FINANCIAL SERVICES LLC CALAMOS PARTNERS LLC CALAMOS WEALTH MANAGEMENT LLC CALAMOS INVESTMENT TRUST CALAMOS ADVISORS TRUST CALAMOS CONVERTIBLE OPPORTUNITIES AND INCOME FUND CALAMOS CONVERTIBLE AND HIGH INCOME FUND CALAMOS STRATEGIC TOTAL RETURN FUND CALAMOS GLOBAL TOTAL RETURN FUND CALAMOS GLOBAL DYNAMIC INCOME FUND Code of Eth

May 17, 2010 EX-99.S

POWER OF ATTORNEY

exv99ws POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

May 17, 2010 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

exv99wn Exhibit N CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Post-Effective Amendment No.

May 10, 2010 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 23, 2010 POS 8C

- POS 8C

pos8c As filed with the Securities and Exchange Commission on March 22, 2010 1933 Act File No.

March 23, 2010 EX-99.2(N)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No.

March 23, 2010 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

March 23, 2010 EX-99.2(S)

POWER OF ATTORNEY

POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

March 23, 2010 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer

March 23, 2010 COVER

-

cover K&L Gates llp 70 West Madison Street Suite 3100 Chicago, IL 60602-4207 T 312.

September 25, 2009 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

September 25, 2009 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer

August 10, 2009 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Calamos Convertible & High Income Fund

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Calamos Convertible & High Income Fund (Name of Issuer) Auction Rate Preferred Stock (Title of Class of Securities) 12811P702 12811P603 12811P207 12811P504 12811P306 12811P405 (CUSIP Number) July 31, 2009 (Date of Event Which Requires Filing of this Stat

May 18, 2009 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 15, 2009 EX-99.S

POWER OF ATTORNEY

exv99ws POWER OF ATTORNEY The person whose signature appears below hereby appoints John P.

April 15, 2009 EX-99.H.6

CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND? AMENDED AND RESTATED SALES AGREEMENT

exv99whw6 Exhibit h.6 CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ AMENDED AND RESTATED SALES AGREEMENT April 14, 2009 JONESTRADING INSTITUTIONAL SERVICES LLC 780 Third Avenue, 3rd Floor New York, NY 10017 Ladies and Gentlemen: CALAMOS CONVERTIBLE AND HIGH INCOME FUND, a Delaware statutory trust (the “Fund”), CALAMOS ADVISORS LLC,

April 15, 2009 POS EX

As filed with the Securities and Exchange Commission on April 14, 2009

As filed with the Securities and Exchange Commission on April 14, 2009 1933 Act File No.

April 15, 2009 EX-99.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

exv99wn Exhibit (n) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Post-Effective Amendment No.

April 15, 2009 EX-99.L.3

[Letterhead of Morris, Nichols, Arsht & Tunnell LLP] April 14, 2009

exv99wlw3 Exhibit l.3 [Letterhead of Morris, Nichols, Arsht & Tunnell LLP] April 14, 2009 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 K&L Gates LLP 70 W. Madison Street Suite 3100 Chicago, Illinois 60602 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and High Income Fund,

April 15, 2009 EX-99.L.2

K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 April 14, 2009

exv99wlw2 Exhibit l.2 K&L Gates LLP 70 West Madison Street, Suite 3100 Chicago, Illinois 60602 312-372-1121 April 14, 2009 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Ladies and Gentlemen: We have acted as your counsel in connection with the Registration Statement on Form N-2 (File No. 333-146947), as amended by post-effective amendment no. 3 (the “Regist

April 10, 2009 SC 13G

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Calamos Convertible & High Income Fund

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Calamos Convertible & High Income Fund (Name of Issuer) Auction Rate Preferred Stock (Title of Class of Securities) 12811P702 12811P603 12811P207 12811P504 12811P306 12811P405 (CUSIP Number) February 28, 2009 (Date of Event Which Requires Filing of this Statement) Check th

April 7, 2009 CORRESP

April 7, 2009 Eric S. Purple D 202.955.7081 F 202.835.4152 [email protected]

April 7, 2009 Eric S. Purple D 202.955.7081 F 202.835.4152 [email protected] Mr. Larry Greene and Mr. Kevin Rupert Division of Investment Management Securities and Exchange Commission 100 F Street, N.E., Room 4700 Washington, D.C. 20549 Calamos Convertible and High Income Fund 333-146947 811-21319 Dear Mr. Greene and Mr. Rupert: This letter responds to the comments you verbally conveyed to m

March 20, 2009 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

March 20, 2009 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

February 23, 2009 COVER

70 West Madison Street, Suite 3100 Chicago, Illinois 60602-4207 312.372.1121 Ÿ Fax 312.827.8000

70 West Madison Street, Suite 3100 Chicago, Illinois 60602-4207 312.372.1121 ? Fax 312.827.8000 DAVID P. GLATZ 312.807.4295 [email protected] Direct Fax: 312.827.8065 BY EDGAR February 20, 2009 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Calamos Convertible and High Income Fund 333-146947 811-21319 Ladies and Gentlemen: On behalf of Calamos Convertible and High Inc

February 23, 2009 EX-99.2.N

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-99.2.N Exhibit (n) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Post-Effective Amendment No. 2 to Registration Statement No. 333-146947 on Form N-2 of our report dated December 18, 2008, relating to the financial statements and financial highlights of Calamos Convertible and High Income Fund appearing in the Annual Report on Form N-CSR for the year ende

February 23, 2009 POS 8C

As filed with the Securities and Exchange Commission on February 20, 2009

As filed with the Securities and Exchange Commission on February 20, 2009 1933 Act File No.

September 25, 2008 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

September 25, 2008 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer

June 26, 2008 EX-99.2(L)(3)

[Letterhead of Morris, Nichols, Arsht & Tunnell LLP] June 26, 2008

exv99w2xlyx3y Exhibit l.3 [Letterhead of Morris, Nichols, Arsht & Tunnell LLP] June 26, 2008 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Bell, Boyd & Lloyd LLP 70 W. Madison Street Suite 3100 Chicago, Illinois 60602 Re: Calamos Convertible and High Income Fund Ladies and Gentlemen: We have acted as special Delaware counsel to Calamos Convertible and High

June 26, 2008 EX-99.2(H)(6)

CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND? SALES AGREEMENT

exv99w2xhyx6y Exhibit h.6 CALAMOS CONVERTIBLE AND HIGH INCOME FUND UP TO 5,000,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SALES AGREEMENT June 26, 2008 JONESTRADING INSTITUTIONAL SERVICES LLC 780 Third Avenue, 3rd Floor New York, NY 10017 Ladies and Gentlemen: CALAMOS CONVERTIBLE AND HIGH INCOME FUND, a Delaware statutory trust (the “Fund”), and CALAMOS ADVISORS LLC, a Delaware li

June 26, 2008 EX-99.2(N)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit n CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Post-Effective Amendment No.

June 26, 2008 POS EX

As filed with the Securities and Exchange Commission on June 26, 2008

As filed with the Securities and Exchange Commission on June 26, 2008 1933 Act File No.

June 26, 2008 EX-99.2(L)(2)

[Bell, Boyd & Lloyd LLP Letterhead] June 26, 2008

Exhibit l.2 [Bell, Boyd & Lloyd LLP Letterhead] June 26, 2008 Calamos Convertible and High Income Fund 2020 Calamos Court Naperville, Illinois 60563 Ladies and Gentlemen: Calamos Convertible and High Income Fund We have acted as counsel for Calamos Convertible and High Income Fund (the “Fund”) in connection with the registration under the Securities Act of 1933, as amended (the “Act”), of certain

May 12, 2008 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 24, 2008 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

nvq UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME

March 24, 2008 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

exv99wcert CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

March 7, 2008 CORRESP

-

March 7, 2008 VIA E-MAIL AND EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, N.

March 7, 2008 CORRESP

-

corresp ROBERT W. DIXON 312-609-7742 [email protected] March 7, 2008 VIA E-MAIL AND EDGAR United States Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549 Attn: Mr. Larry L. Greene, Senior Counsel Re: Calamos Strategic Total Return Fund File Nos. 333-146943 and 811-21484 Calamos Convertible Opportunities and Income Fund File Nos. 333-1

February 28, 2008 CORRESP

-

corresp DEBORAH BIELICKE EADES 312-609-7661 [email protected] VEDDER, PRICE P.C. 222 NORTH LASALLE STREET CHICAGO, ILLINOIS 60601 312-609-7500 FAX: 312-609-5005 CHICAGO • NEW YORK CITY • WASHINGTON, D.C. • ROSELAND, NJ February 28, 2008 VIA E-MAIL AND EDGAR United States Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549 Attn: Mr. Larr

February 22, 2008 CORRESP

-

ROBERT W. DIXON 312-609-7742 [email protected] February 22, 2008 VIA E-MAIL AND EDGAR United States Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549 Attn: Mr. Larry L. Greene, Senior Counsel Re: Calamos Strategic Total Return Fund File Nos. 333-146943 and 811-21484 Calamos Convertible Opportunities and Income Fund File Nos. 333-14694

February 22, 2008 CORRESP

-

corresp February 22, 2008 VIA E-MAIL AND EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, N.

January 30, 2008 CORRESP

-

corresp ROBERT W. DIXON 312-609-7742 [email protected] January 30, 2008 United States Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549 Attn: Mr. Larry L. Greene, Senior Counsel Re: Calamos Strategic Total Return Fund File Nos. 333-146943; 811-21484 Calamos Convertible Opportunities and Income Fund File Nos. 333-146945; 811-21080 Cala

September 26, 2007 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER: 811-21319 EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible and High Income Fund ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563 NAME AND

September 26, 2007 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, John P. Calamos, Sr., certify that: 1. I have reviewed this report on Form N-Q of Calamos Convertible and High Income Fund; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer

May 25, 2007 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

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