<SEC-DOCUMENT>0000876437-18-000022-index.html : 20180430
<SEC-HEADER>0000876437-18-000022.hdr.sgml : 20180430
<ACCEPTANCE-DATETIME>20180430162349
ACCESSION NUMBER:		0000876437-18-000022
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180430
DATE AS OF CHANGE:		20180430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MGIC INVESTMENT CORP
		CENTRAL INDEX KEY:			0000876437
		STANDARD INDUSTRIAL CLASSIFICATION:	SURETY INSURANCE [6351]
		IRS NUMBER:				391486475
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10816
		FILM NUMBER:		18790137

	BUSINESS ADDRESS:	
		STREET 1:		250 EAST KILBOURN AVENUE
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
		BUSINESS PHONE:		4143476480

	MAIL ADDRESS:	
		STREET 1:		250 EAST KILBOURN AVENUE
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>mtg12311710ka.htm
<DESCRIPTION>10-K/A
<TEXT>
Document 1 - file: mtg12311710ka.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.3
<SEQUENCE>2
<FILENAME>ex313ceocertification.htm
<DESCRIPTION>EXHIBIT 31.3
<TEXT>
Document 2 - file: ex313ceocertification.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.4
<SEQUENCE>3
<FILENAME>ex314cfocertification.htm
<DESCRIPTION>EXHIBIT 31.4
<TEXT>
Document 3 - file: ex314cfocertification.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>ceobonusstockprice2.jpg
<TEXT>
Document 4 - file: ceobonusstockprice2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>chart-04cf154a5a05a54ed63.jpg
<TEXT>
Document 5 - file: chart-04cf154a5a05a54ed63.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>chart-43091ce42abb33c2f06.jpg
<TEXT>
Document 6 - file: chart-43091ce42abb33c2f06.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>chart-918535fb88e2e7615b0a01.jpg
<TEXT>
Document 7 - file: chart-918535fb88e2e7615b0a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>chart-dd7c445de5c521350b4a01.jpg
<TEXT>
Document 8 - file: chart-dd7c445de5c521350b4a01.jpg

</DOCUMENT>
</SEC-DOCUMENT>