<SEC-DOCUMENT>0001562180-19-001753.txt : 20190306
<SEC-HEADER>0001562180-19-001753.hdr.sgml : 20190306
<ACCEPTANCE-DATETIME>20190306111636
ACCESSION NUMBER:		0001562180-19-001753
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190302
FILED AS OF DATE:		20190306
DATE AS OF CHANGE:		20190306

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Candelmo Robert J
		CENTRAL INDEX KEY:			0001769397

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10816
		FILM NUMBER:		19661647

	MAIL ADDRESS:	
		STREET 1:		250 EAST KILBOURN AVENUE
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202

ISSUER:		

	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

	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>3
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2019-03-02</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000876437</issuerCik>
        <issuerName>MGIC INVESTMENT CORP</issuerName>
        <issuerTradingSymbol>MTG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001769397</rptOwnerCik>
            <rptOwnerName>Candelmo Robert J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>250 EAST KILBOURN AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MILWAUKEE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>SVP-Chief Information Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>83964.00</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These securities include 74,150 restricted stock units which are settled in shares of common stock of the Issuer, subject to certain restrictions, become vested only if such restrictions lapse and are subject to forfeiture under certain circumstances.</footnote>
        <footnote id="F2">Of these shares, 9,814 shares are held jointly with his spouse.</footnote>
    </footnotes>

    <remarks>This Form 3 is being signed by the reporting person's Attorney-in-Fact pursuant to the attached power of attorney.</remarks>

    <ownerSignature>
        <signatureName>Martha F. Tsuchihashi, Attorney-in-Fact</signatureName>
        <signatureDate>2019-03-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>candelmo.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>



Limited Power of Attorney


KNOW ALL BY THESE PRESENTS, that the undersigned is required,
or may be required in the future, to file reports of changes
in beneficial ownership of equity securities of MGIC Investment
Corporation (the "Company").

To facilitate the filing of these reports, the undersigned
hereby appoints each person who is the Chief Financial Officer,
the Associate General Counsel, any Assistant General Counsel
the Secretary, or any Assistant Secretary of the Company
as the undersigned's attorney-in-fact
and agent to: (i) apply on behalf of the undersigned for
access codes (if necessary) for the EDGAR System, and
(ii) sign on behalf of the undersigned any Form 3, Form 4,
or Form 5 to be filed by the undersigned with the SEC
or any securities exchange.

Each of the persons authorized to act as such attorney-in-fact
and agent above may do so separately without the concurrence of
the other persons.  The authority granted hereunder is granted
to the person occupying the position specified at the time such
authority is exercised.

Dated: July 16, 2018



Signature: (S) Paula C. Maggio

Please print name:  Paula C. Maggio
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
