3Q2011 10-Q

Company

Interactive Brokers Group, Inc.

Filed

November 8, 2011

Period of Report

September 30, 2011

Accession Number

0001381197-11-000057

A 10-Q is a quarterly financial report filed after each of the first three quarters of a fiscal year. It includes unaudited financial statements and management commentary. Learn more about 10-Q filings →