<SEC-DOCUMENT>0001171471-17-000002-index.html : 20170626
<SEC-HEADER>0001171471-17-000002.hdr.sgml : 20170626
<ACCEPTANCE-DATETIME>20170626135320
ACCESSION NUMBER:		0001171471-17-000002
CONFORMED SUBMISSION TYPE:	NSAR-A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170430
FILED AS OF DATE:		20170626
DATE AS OF CHANGE:		20170626
EFFECTIVENESS DATE:		20170626

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:		NSAR-A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21080
		FILM NUMBER:		17929408

	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>NSAR-A
<SEQUENCE>1
<FILENAME>chianswers.fil
<DESCRIPTION>ANSWER FILE
<TEXT>
Document 1 - file: chianswers.fil

</DOCUMENT>
</SEC-DOCUMENT>