Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

Interactive Brokers Group, Inc. (the "Company") received a letter from the NASDAQ staff notifying the Company that it is non-compliant with NASDAQ Listing Rule 5250(c)(1) because its Quarterly Report on Form 10-Q for the period ended June 30, 2012 was not filed on a timely basis with the Securities and Exchange Commission ("SEC") and has not yet been filed.

NASDAQ Listing Rule 5250(c)(1) requires the Company to timely file all required periodic financial reports with the SEC. Pursuant to NASDAQ Rules and in connection with the delinquent filing of its Form 10-Q for the period ended March 31, 2012, the Company submitted a plan, including a request to extend the remediation date until September 27, 2012, to regain compliance to NASDAQ, which plan was accepted by NASDAQ.

As reported in the Company's Form 8-K, filed on August 15, 2012, after consideration of guidance received from the SEC as to whether noncontrolling interests in IBG LLC attributable to IBG Holdings LLC should be accounted for and reported as temporary or permanent equity in the Company's consolidated financial statements, the Company has concluded that such noncontrolling interests should be reported as temporary equity for periods prior to June 6, 2012 and as permanent equity for periods after June 6, 2012. As also reported in the August 15, 2012 Form 8-K, certain prior period financial statements will be restated accordingly as soon as practicable and, concurrently with the filing of the restatements, the Company will file a Form 10-Q for the period ended June 30, 2012.

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