<SEC-DOCUMENT>0001193125-15-243254.txt : 20150702
<SEC-HEADER>0001193125-15-243254.hdr.sgml : 20150702
<ACCEPTANCE-DATETIME>20150701181957
ACCESSION NUMBER:		0001193125-15-243254
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20150702
DATE AS OF CHANGE:		20150701
EFFECTIVENESS DATE:		20150702

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:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-196373
		FILM NUMBER:		15966531

	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>497
<SEQUENCE>1
<FILENAME>d47279d497.htm
<DESCRIPTION>497
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<TITLE>497</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CALAMOS CONVERTIBLE OPPORTUNITIES &amp; INCOME FUND </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(<SMALL>THE</SMALL> &#147;F<SMALL>UND</SMALL>&#148;) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Supplement dated July 2, 2015 to the </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Prospectus Supplement, Prospectus and Statement of Additional Information, each dated </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>March 1, 2015 </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">On May&nbsp;22, 2015, the
Fund&#146;s board of trustees amended the Fund&#146;s non-fundamental policy with respect to issuing preferred securities, borrowing money or issuing debt securities to read as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><I>As a non-fundamental policy, the Fund may not issue debt securities, borrow money or issue preferred shares in an aggregate amount
exceeding 38% of the Fund&#146;s managed assets measured at the time of issuance of the new securities.</I> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">For these purposes, &#147;managed
assets&#148; means the total assets of the Fund (including any assets attributable to any leverage that may be outstanding) minus the sum of liabilities (other than debt representing financial leverage). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Additionally, Steve Klouda is no longer a member of the Fund&#146;s investment team. References to Mr.&nbsp;Klouda shall be deemed deleted from the Prospectus
Supplement, Prospectus, and Statement of Additional Information of the Fund. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Please retain this supplement for future reference.
</B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">CHISPT 07/15 </P>
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