    <SEC-DOCUMENT>0001193125-19-027684-index.html : 20190205
    <SEC-HEADER>0001193125-19-027684.hdr.sgml : 20190205
    <ACCEPTANCE-DATETIME>20190205090026
    ACCESSION NUMBER:		0001193125-19-027684
    CONFORMED SUBMISSION TYPE:	497
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20190205
    DATE AS OF CHANGE:		20190205
    EFFECTIVENESS DATE:		20190205

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FIDUS INVESTMENT Corp
    		CENTRAL INDEX KEY:			0001513363
    		IRS NUMBER:				275017321
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		497
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-223350
    		FILM NUMBER:		19566392

    	BUSINESS ADDRESS:
    		STREET 1:		1603 ORRINGTON AVENUE
    		STREET 2:		SUITE 820
    		CITY:			EVANSTON
    		STATE:			IL
    		ZIP:			60201
    		BUSINESS PHONE:		847-859-3940

    	MAIL ADDRESS:
    		STREET 1:		1603 ORRINGTON AVENUE
    		STREET 2:		SUITE 820
    		CITY:			EVANSTON
    		STATE:			IL
    		ZIP:			60201
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>497
    <SEQUENCE>1
    <FILENAME>d682890d497.htm
    <DESCRIPTION>497
    <TEXT>
    Document 1 - file: d682890d497.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g682890g06l70.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g682890g06l70.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g682890g30j73.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g682890g30j73.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g682890g59n16.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g682890g59n16.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>