<SEC-DOCUMENT>0001088875-17-000017-index.html : 20170127
<SEC-HEADER>0001088875-17-000017.hdr.sgml : 20170127
<ACCEPTANCE-DATETIME>20170127100948
ACCESSION NUMBER:		0001088875-17-000017
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170127
DATE AS OF CHANGE:		20170127

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-82876
		FILM NUMBER:		17551988

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAILLIE GIFFORD & CO
		CENTRAL INDEX KEY:			0001088875
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		CALTON SQUARE
		STREET 2:		1 GREENSIDE ROW
		CITY:			EDINBURGH
		STATE:			X0
		ZIP:			EH13AN
		BUSINESS PHONE:		00441312752000

	MAIL ADDRESS:	
		STREET 1:		CALTON SQUARE
		STREET 2:		1 GREENSIDE ROW
		CITY:			EDINBURGH
		STATE:			X0
		ZIP:			EH13AN
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>Interactivebrokers2312016.txt
<TEXT>
Document 1 - file: Interactivebrokers2312016.txt

</DOCUMENT>
</SEC-DOCUMENT>