<SEC-DOCUMENT>0001047469-18-001395-index.html : 20180308 <SEC-HEADER>0001047469-18-001395.hdr.sgml : 20180308 <ACCEPTANCE-DATETIME>20180308103946 ACCESSION NUMBER: 0001047469-18-001395 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 6 CONFORMED PERIOD OF REPORT: 20180419 FILED AS OF DATE: 20180308 DATE AS OF CHANGE: 20180308 EFFECTIVENESS DATE: 20180308 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: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-33440 FILM NUMBER: 18675432 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>DEF 14A <SEQUENCE>1 <FILENAME>a2234777zdef14a.htm <DESCRIPTION>DEF 14A <TEXT> Document 1 - file: a2234777zdef14a.htm
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