-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 ON9jrNyGSW9NewHAhuv97dMShdJOtQRkGVUX31MXSxsz6ppDjHnHMg66CeSg/dwb
 D7n+RJ4RWzHze+Pi9GTc7A==

<SEC-DOCUMENT>0000754811-09-000017.txt : 20090303
<SEC-HEADER>0000754811-09-000017.hdr.sgml : 20090303
<ACCEPTANCE-DATETIME>20090303145044
ACCESSION NUMBER:		0000754811-09-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090302
FILED AS OF DATE:		20090303
DATE AS OF CHANGE:		20090303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LYDON THOMAS F JR
		CENTRAL INDEX KEY:			0001249279

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13928
		FILM NUMBER:		09651224

	BUSINESS ADDRESS:	
		STREET 1:		9601 BLACKWELL ROAD
		STREET 2:		STE 500
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		3012965100

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			U S GLOBAL INVESTORS INC
		CENTRAL INDEX KEY:			0000754811
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				741598370
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		7900 CALLAGHAN RD
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78229
		BUSINESS PHONE:		2103081234

	MAIL ADDRESS:	
		STREET 1:		7900 CALLAGHAN ROAD
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78229

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNITED SERVICES ADVISORS INC /TX/
		DATE OF NAME CHANGE:	19950321
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-03-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000754811</issuerCik>
        <issuerName>U S GLOBAL INVESTORS INC</issuerName>
        <issuerTradingSymbol>GROW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249279</rptOwnerCik>
            <rptOwnerName>LYDON THOMAS F JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-03-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.46</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Award of restricted stock to member of Board of Directors</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Catherine A. Rademacher, Power of Attorney for Thomas F. Lydon, Jr.</signatureName>
        <signatureDate>2009-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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