<SEC-DOCUMENT>0001387131-18-002809-index.html : 20180621
<SEC-HEADER>0001387131-18-002809.hdr.sgml : 20180621
<ACCEPTANCE-DATETIME>20180621151259
ACCESSION NUMBER:		0001387131-18-002809
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20180430
FILED AS OF DATE:		20180621
DATE AS OF CHANGE:		20180621
EFFECTIVENESS DATE:		20180621

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:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21080
		FILM NUMBER:		18911765

	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>N-CSRS
<SEQUENCE>1
<FILENAME>chi-ncsrs_043018.htm
<DESCRIPTION>SEMI-ANNUAL SHAREHOLDER REPORT
<TEXT>
Document 1 - file: chi-ncsrs_043018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>ex99-cert.htm
<DESCRIPTION>CERTIFICATIONS
<TEXT>
Document 2 - file: ex99-cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>ex99-906cert.htm
<DESCRIPTION>SECTION 906 CERTIFICATIONS
<TEXT>
Document 3 - file: ex99-906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>chi-ncsrs_043018img001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: chi-ncsrs_043018img001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>chi-ncsrs_043018img002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: chi-ncsrs_043018img002.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>chi-ncsrs_043018img003.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: chi-ncsrs_043018img003.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>chi-ncsrs_043018img004.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: chi-ncsrs_043018img004.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>chi-ncsrs_043018img005.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: chi-ncsrs_043018img005.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>chi-ncsrs_043018img006.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: chi-ncsrs_043018img006.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>chi-ncsrs_043018img007.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: chi-ncsrs_043018img007.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>chi-ncsrs_043018img008.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: chi-ncsrs_043018img008.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>chi-ncsrs_043018img009.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: chi-ncsrs_043018img009.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>chi-ncsrs_043018img010.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: chi-ncsrs_043018img010.gif

</DOCUMENT>
</SEC-DOCUMENT>