<SEC-DOCUMENT>0001140361-17-029141-index.html : 20170728
<SEC-HEADER>0001140361-17-029141.hdr.sgml : 20170728
<ACCEPTANCE-DATETIME>20170728161215
ACCESSION NUMBER:		0001140361-17-029141
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20170728
DATE AS OF CHANGE:		20170728
EFFECTIVENESS DATE:		20170728

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Interactive Brokers Group, Inc.
		CENTRAL INDEX KEY:			0001381197
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-219552
		FILM NUMBER:		17990144

	BUSINESS ADDRESS:	
		STREET 1:		ONE PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		203-618-5800

	MAIL ADDRESS:	
		STREET 1:		ONE PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>forms3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: forms3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>ex5_1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: ex5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>ex23_1.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: ex23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>logo-ibv01.jpg
<TEXT>
Document 4 - file: logo-ibv01.jpg

</DOCUMENT>
</SEC-DOCUMENT>