<SEC-DOCUMENT>0001193125-17-361365-index.html : 20171205
<SEC-HEADER>0001193125-17-361365.hdr.sgml : 20171205
<ACCEPTANCE-DATETIME>20171205145155
ACCESSION NUMBER:		0001193125-17-361365
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20171205
DATE AS OF CHANGE:		20171205
EFFECTIVENESS DATE:		20171205

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CAPSTEAD MORTGAGE CORP
		CENTRAL INDEX KEY:			0000766701
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				752027937
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-221908
		FILM NUMBER:		171239415

	BUSINESS ADDRESS:	
		STREET 1:		8401 NORTH CENTRAL EXPRESSWAY
		STREET 2:		STE 800
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		2148742323

	MAIL ADDRESS:	
		STREET 1:		8401 NORTH CENTRAL EXPRESSWAY
		STREET 2:		STE 800
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LOMAS MORTGAGE CORP
		DATE OF NAME CHANGE:	19891105
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>d502817ds3asr.htm
<DESCRIPTION>FORM S-3ASR
<TEXT>
Document 1 - file: d502817ds3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d502817dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d502817dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.2
<SEQUENCE>3
<FILENAME>d502817dex52.htm
<DESCRIPTION>EX-5.2
<TEXT>
Document 3 - file: d502817dex52.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-8.1
<SEQUENCE>4
<FILENAME>d502817dex81.htm
<DESCRIPTION>EX-8.1
<TEXT>
Document 4 - file: d502817dex81.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>5
<FILENAME>d502817dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 5 - file: d502817dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g502817ex.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g502817ex.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g502817g98o27.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g502817g98o27.jpg

</DOCUMENT>
</SEC-DOCUMENT>