<SEC-DOCUMENT>0001145549-20-019410-index.html : 20200331
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<ACCEPTANCE-DATETIME>20200331105215
ACCESSION NUMBER:		0001145549-20-019410
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20200131
FILED AS OF DATE:		20200331
PERIOD START:           	20201031

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:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21080
		FILM NUMBER:		20760320

	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
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<SEQUENCE>12
<FILENAME>cvxb_nq.htm
<DESCRIPTION>PART F
<TEXT>
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