<SEC-DOCUMENT>0001104659-25-124669-index.html : 20251229
<SEC-HEADER>0001104659-25-124669.hdr.sgml : 20251229
<ACCEPTANCE-DATETIME>20251229121025
ACCESSION NUMBER:		0001104659-25-124669
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		51
CONFORMED PERIOD OF REPORT:	20251031
FILED AS OF DATE:		20251229
DATE AS OF CHANGE:		20251229
EFFECTIVENESS DATE:		20251229

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND
		CENTRAL INDEX KEY:			0001171471
		ORGANIZATION NAME:           	
		EIN:				030426532
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21080
		FILM NUMBER:		251607040

	BUSINESS ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		6302451046

	MAIL ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>tm2532074d2_ncsr.htm
<DESCRIPTION>N-CSR
<TEXT>
Document 1 - file: tm2532074d2_ncsr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CODEETH
<SEQUENCE>2
<FILENAME>tm2532074d2_ex99-codeeth.htm
<DESCRIPTION>EXHIBIT 99.CODEETH
<TEXT>
Document 2 - file: tm2532074d2_ex99-codeeth.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>3
<FILENAME>tm2532074d2_ex99-cert.htm
<DESCRIPTION>EXHIBIT 99.CERT
<TEXT>
Document 3 - file: tm2532074d2_ex99-cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(A)(3)(III)
<SEQUENCE>4
<FILENAME>tm2532074d1_ex99-xax3xiii.htm
<DESCRIPTION>EXHIBIT 99.(A)(3)(III)
<TEXT>
Document 4 - file: tm2532074d1_ex99-xax3xiii.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(A)(3)(IV)
<SEQUENCE>5
<FILENAME>tm2532074d2_ex99-xax3xiv.htm
<DESCRIPTION>EXHIBIT 99.(A)(3)(IV)
<TEXT>
Document 5 - file: tm2532074d2_ex99-xax3xiv.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906 CERT
<SEQUENCE>6
<FILENAME>tm2532074d2_ex99-906cert.htm
<DESCRIPTION>EXHIBIT 99.906 CERT
<TEXT>
Document 6 - file: tm2532074d2_ex99-906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>7
<FILENAME>ck0001171471-20251031.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 7 - file: ck0001171471-20251031.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>8
<FILENAME>ck0001171471-20251031_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
<TEXT>
Document 8 - file: ck0001171471-20251031_def.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>9
<FILENAME>ck0001171471-20251031_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 9 - file: ck0001171471-20251031_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>10
<FILENAME>ck0001171471-20251031_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
Document 10 - file: ck0001171471-20251031_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>j25320747_aa001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: j25320747_aa001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>j25320747_aa002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: j25320747_aa002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>j25320747_aa003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: j25320747_aa003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>j25320747_aa004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: j25320747_aa004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>j25320747_aa005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: j25320747_aa005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>j25320747_ba006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: j25320747_ba006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>j25320747_ba007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: j25320747_ba007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>j25320747_ba008.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: j25320747_ba008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>j25320747_ca009.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: j25320747_ca009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>j25320747_ca010.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: j25320747_ca010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>j25320747_ca011.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 21 - file: j25320747_ca011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>j25320747_ca012.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 22 - file: j25320747_ca012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>j25320747_ca013.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 23 - file: j25320747_ca013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>j25320747_ca014.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 24 - file: j25320747_ca014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>j25320747_ca015.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 25 - file: j25320747_ca015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>26
<FILENAME>j25320747_da016.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 26 - file: j25320747_da016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>27
<FILENAME>j25320747_da017.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 27 - file: j25320747_da017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>28
<FILENAME>j25320747_da018.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 28 - file: j25320747_da018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>29
<FILENAME>j25320747_da019.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 29 - file: j25320747_da019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>30
<FILENAME>j25320747_da020.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 30 - file: j25320747_da020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>31
<FILENAME>j25320747_da021.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 31 - file: j25320747_da021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>32
<FILENAME>j25320747_dc022.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 32 - file: j25320747_dc022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>33
<FILENAME>j25320747_dc023.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 33 - file: j25320747_dc023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>34
<FILENAME>j25320747_dc024.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 34 - file: j25320747_dc024.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>35
<FILENAME>j25320747_dc025.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 35 - file: j25320747_dc025.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>36
<FILENAME>j25320747_de026.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 36 - file: j25320747_de026.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>37
<FILENAME>j25320747_de027.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 37 - file: j25320747_de027.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>38
<FILENAME>j25320747_de028.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 38 - file: j25320747_de028.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>39
<FILENAME>j25320747_de029.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 39 - file: j25320747_de029.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>40
<FILENAME>j25320747_ia030.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 40 - file: j25320747_ia030.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>41
<FILENAME>j25320747_za031.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 41 - file: j25320747_za031.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>42
<FILENAME>j25320747_za032.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 42 - file: j25320747_za032.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>43
<FILENAME>tm2532074d2_ex99a34img01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 43 - file: tm2532074d2_ex99a34img01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>45
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 45 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>46
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 46 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>47
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 47 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 49 - file: FilingSummary.html

Document 49 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>51
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 51 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>52
<FILENAME>0001104659-25-124669-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 52 - file: 0001104659-25-124669-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>53
<FILENAME>tm2532074d2_ncsr_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 53 - file: tm2532074d2_ncsr_htm.html

Document 53 - RAW XML: tm2532074d2_ncsr_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>