8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported):  July 25, 2008

INTERACTIVE BROKERS GROUP, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware	001-33440	30-0390693
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)

One Pickwick Plaza, Greenwich, CT 06830

(Address of Principal Executive Offices) (Zip Code)

(203) 618-5800

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o           Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o           Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o           Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o           Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02. Results of Operations and Financial Condition.

The Registrant hereby provides certain quarterly financial data for each quarter from the quarter ended September 30, 2001 to the quarter ended June 30, 2008 (the “Quarterly Financial Data”), which is furnished as Exhibit 99.1 to this report and incorporated herein by reference. The Quarterly Financial Data consists of unaudited consolidated pretax income for our group companies for each fiscal quarter presented. The Registrant believes that this information is important for investors in order to better understand the Registrant’s quarterly results and long term trend.

The information furnished in this report (including Exhibit 99.1 hereto) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and unless expressly set forth by specific reference in such filings, shall not be incorporated by reference in any filing under the Securities Act of 1933, as amended, whether made before or after the date hereof and regardless of any general incorporation language in such filings.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Quarterly Financial Data

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: July 25, 2008

INTERACTIVE BROKERS GROUP, INC.
By:	/s/ Paul J. Brody
Name:	Paul J. Brody
Title:	Chief Financial Officer, Treasurer
	and Secretary

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EXHIBIT INDEX

99.1 Quarterly Financial Data

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EX-99.1

Exhibit  99.1

* Prior to 2004, historical data do not reflect certain accounting standards that were adopted at later dates.

Quarter Ended	Pretax Income
09/30/01	156.0
12/31/01	42.8
03/31/02	25.9
06/30/02	47.3
09/30/02	134.4
12/31/02	140.8
03/31/03	40.2
06/30/03	161.9
09/30/03	103.7
12/31/03	58.5
03/31/04	138.9
06/30/04	56.6
09/30/04	58.1
12/31/04	36.4
03/31/05	149.5
06/30/05	134.0
09/30/05	123.5
12/31/05	162.3
03/31/06	215.4
06/30/06	164.4
09/30/06	220.1
12/31/06	161.7
03/31/07	190.3
06/30/07	164.5
09/30/07	307.9
12/31/07	268.7
03/31/08	374.0
06/30/08	259.3