<SEC-DOCUMENT>0001104659-21-151794.txt : 20211220
<SEC-HEADER>0001104659-21-151794.hdr.sgml : 20211220
<ACCEPTANCE-DATETIME>20211220172257
ACCESSION NUMBER:		0001104659-21-151794
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20211220
DATE AS OF CHANGE:		20211220

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND
		CENTRAL INDEX KEY:			0001171471
		IRS NUMBER:				030426532
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-229042
		FILM NUMBER:		211506142

	BUSINESS ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60653
		BUSINESS PHONE:		6302451046

	MAIL ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60653
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>a21-30665_2424b3.htm
<DESCRIPTION>424B3
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<p style="margin:0pt 0pt 0pt 0pt;" align="right"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><b>Filed pursuant to Rule 424(b)(3)<BR>File No. 333-229042</b></font></p>
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<p style="margin:0pt 0pt 12pt 0pt;" align="center"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><b>Calamos Convertible Opportunities and 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</b></font></p>
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<p style="margin:0pt 0pt 12pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><i>The subsection titled "Primary Investments" in the section titled "Investment Policies" on page 4 of the Prospectus is deleted in its entirety and replaced with the following:</i></font></p>
<p style="margin:0pt 0pt 12pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><i>Primary Investments.</i></font><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"> Under normal circumstances, the Fund invests at least 80% of its managed assets in a diversified portfolio of convertible securities and non-convertible income securities.(1) The portion of the Fund's assets invested in convertible securities and non-convertible income securities will vary from time to time consistent with the Fund's investment objective, changes in equity prices and changes in interest rates and other economic and market factors, although, under normal circumstances, the Fund will invest at least 35% of its managed assets in convertible securities. The Fund invests in securities with a broad range of maturities. The average term to maturity of the Fund's securities typically will range from two to ten years. See "Investment Objective and Principal Investment Strategies &#151; Principal Investment Strategies."</font></p>
<p style="margin:8pt 0pt 0pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:11pt;">(1) This is a non-fundamental policy and may be changed by the Board of Trustees of the Fund provided that shareholders are provided with at least 60 days' prior written notice of any change as required by the rules under the 1940 Act.</font></p>
<p style="margin:12pt 0pt 12pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><i>The first paragraph of the subsection titled "Principal Investment Strategies" in the section titled "Investment Objective and Principal Investment Strategies" on page 29 of the Prospectus is deleted in its entirety and replaced with the following:</i></font></p>
<p style="margin:0pt 0pt 6pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><b>Principal Investment Strategies</b></font></p>
<p style="margin:0pt 0pt 12pt 0pt;" align="left"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;">Under normal circumstances, the Fund invests at least 80% of its managed assets in a diversified portfolio of convertible securities and non-convertible income securities. This is a non-fundamental policy and may be changed by the Board of Trustees of the Fund provided that shareholders are provided with at least 60 days' prior written notice of any change as required by the rules under the 1940 Act. The portion of the Fund's assets invested in convertible securities and non-convertible income securities will vary from time to time consistent with the Fund's investment objective, changes in equity prices and changes in interest rates and other economic and market factors, although, under normal circumstances, the Fund will invest at least 35% of its managed assets in convertible securities. The Fund invests in securities with a broad range of maturities. The average term to maturity of the Fund's securities typically will range from two to ten years.</font></p>
<p style="margin:0pt 0pt 12pt 0pt;" align="center"><font face="Times New Roman PS Std, Times New Roman PS, Times New Roman, Times" style="font-size:12pt;"><b>Please retain this supplement for future reference</b></font></p>
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