<SEC-DOCUMENT>0001104659-21-121229.txt : 20210930
<SEC-HEADER>0001104659-21-121229.hdr.sgml : 20210930
<ACCEPTANCE-DATETIME>20210930161208
ACCESSION NUMBER:		0001104659-21-121229
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210930
DATE AS OF CHANGE:		20210930

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:		211295217

	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>a21-28711_2424b3.htm
<DESCRIPTION>424B3
<TEXT>


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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Filed pursuant   to Rule&nbsp;424(b)(3)</font></b></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">File   No.&nbsp;333- 229042</font></b></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Amendment to Prospectus Supplement</font></b></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(To Prospectus dated March&nbsp;1, 2021)</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Calamos Convertible Opportunities and Income Fund (the &#147;Fund&#148;)</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Supplement dated September&nbsp;30, 2021 to the Fund&#146;s Prospectus dated March&nbsp;1, 2021, and<br> as supplemented March&nbsp;5, 2021 and August&nbsp;27, 2021</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:24.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">All references in the Prospectus Supplement to the Distribution Agreement shall mean the distribution agreement effective as of September&nbsp;30, 2021 between Calamos Convertible Opportunities and Income Fund and Foreside Fund Services, LLC (the &#147;Distributor&#148;).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:24.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Fund and the Distributor entered into the new Distribution Agreement due to a change of control of the Distributor.&#160; A majority of the interests of Foreside Financial Group, LLC, the indirect parent of the Distributor, are being sold to GC Mountaintop Acquisition Corp., an affiliate of Genstar Capital (the &#147;Transaction&#148;).&#160; The Transaction is not expected to have any operational impact on the Distributor and the services that the Distributor provides to the Fund will not change.&#160; The terms of the new Distribution Agreement are identical to the terms of the prior Distribution Agreement.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:24.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In addition, all references in the Prospectus Supplement to the Sub-Placement&nbsp;Agent Agreement shall mean the Sub-Placement Agent Agreement effective as of September&nbsp;30, 2021 between the Distributor and UBS Securities LLC (the&nbsp;&#147;Sub-Placement&nbsp;Agent&#148;).&#160; The terms of the new Sub-Placement&nbsp;Agent Agreement are identical to the terms of the prior Sub-Placement&nbsp;Agent Agreement.</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Please retain this supplement for future reference.</font></b></p>
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