<SEC-DOCUMENT>0001410368-25-012682-index.html : 20250929
<SEC-HEADER>0001410368-25-012682.hdr.sgml : 20250929
<ACCEPTANCE-DATETIME>20250929093804
ACCESSION NUMBER:		0001410368-25-012682
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250731
FILED AS OF DATE:		20250929
DATE AS OF CHANGE:		20250929
PERIOD START:           	20251031

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS STRATEGIC TOTAL RETURN FUND
		CENTRAL INDEX KEY:			0001275214
		ORGANIZATION NAME:           	
		EIN:				043785941
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21484
		FILM NUMBER:		251352719

	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>NPORT-P
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>NPORT-EX
<SEQUENCE>2
<FILENAME>NPORT_CVXA_86351175_0725.htm
<TEXT>
Document 2 - file: NPORT_CVXA_86351175_0725.htm

</DOCUMENT>
</SEC-DOCUMENT>