<SEC-DOCUMENT>0001752724-21-161663-index.html : 20210730
<SEC-HEADER>0001752724-21-161663.hdr.sgml : 20210730
<ACCEPTANCE-DATETIME>20210730101111
ACCESSION NUMBER:		0001752724-21-161663
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210531
FILED AS OF DATE:		20210730
PERIOD START:           	20220228

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AIM INVESTMENT SECURITIES FUNDS (INVESCO INVESTMENT SECURITIES FUNDS)
		CENTRAL INDEX KEY:			0000842790
		IRS NUMBER:				760343427
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0228

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05686
		FILM NUMBER:		211130621

	BUSINESS ADDRESS:	
		STREET 1:		11 GREENWAY PLAZA
		STREET 2:		SUITE 1000
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046
		BUSINESS PHONE:		7136261919

	MAIL ADDRESS:	
		STREET 1:		11 GREENWAY PLAZA
		STREET 2:		SUITE 1000
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AIM INVESTMENT SECURITIES FUNDS
		DATE OF NAME CHANGE:	20000921

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AIM INVESTMENT SECURITIES FUNDS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AIM PRIME RATE PREMIUM INCOME FUND INC
		DATE OF NAME CHANGE:	19910320
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000842790
<SERIES-ID>S000000255
<SERIES-NAME>INVESCO Real Estate Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000616
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>IARAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000618
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>IARCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000619
<CLASS-CONTRACT-NAME>Class R
<CLASS-CONTRACT-TICKER-SYMBOL>IARRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000620
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>REINX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000023123
<CLASS-CONTRACT-NAME>CLASS R5
<CLASS-CONTRACT-TICKER-SYMBOL>IARIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000071216
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>IARYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000120676
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>IARFX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</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>edgar.htm
<TEXT>
Document 2 - file: edgar.htm

</DOCUMENT>
</SEC-DOCUMENT>