Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  TCV VII LP
2. Date of Event Requiring Statement (Month/Day/Year)
07/28/2009
3. Issuer Name and Ticker or Trading Symbol
Interactive Brokers Group, Inc. [IBKR]
(Last)
(First)
(Middle)
C/O TECHNOLOGY CROSSOVER VENTURES, 528 RAMONA STREET
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
May be part of a 13(d) group
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PALO ALTO, CA 94301
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 2,034,908
I
TCV VII, L.P. (1) (2)
Common Stock 1,056,776
I
TCV VII (A), L.P. (1) (3)
Common Stock 29,625
I
TCV Member Fund, L.P. (1) (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
TCV VII LP
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group
TCV VII(A) L P
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group
Technology Crossover Management VII, Ltd.
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group
Technology Crossover Management VII, L.P.
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group
TCV Member Fund, L.P.
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group
Marshall Christopher P
C/O TECHNOLOGY CROSSOVER VENTURES
528 RAMONA STREET
PALO ALTO, CA 94301
      May be part of a 13(d) group

Signatures

Carla S. Newell Authorized signatory for TCV VII, L.P. 07/30/2009
**Signature of Reporting Person Date

Carla S. Newell Authorized signatory for TCV VII (A), L.P. 07/30/2009
**Signature of Reporting Person Date

Carla S. Newell Authorized signatory for TCV Member Fund, L.P. 07/30/2009
**Signature of Reporting Person Date

Carla S. Newell Authorized signatory for Technology Crossover Management VII, Ltd. 07/30/2009
**Signature of Reporting Person Date

Carla S. Newell Authorized signatory for Technology Crossover Management VII, L.P. 07/30/2009
**Signature of Reporting Person Date

Carla S. Newell Authorized signatory for Christopher P. Marshall 07/30/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This Form 3 is filed by more than one Reporting Person and is a joint filing with the Form 3 filed by Jay C. Hoag, Richard H. Kimball, John L. Drew, Jon Q. Reynolds, Jr., William J.G. Griffith IV, Robert W. Trudeau (collectively, the "TCM VI Members"), TCV VI, L.P. and Technology Crossover Management VI, L.L.C. ("TCM VI") on July 30, 2009.
(2) These securities are directly held by TCV VII, L.P. Christopher P. Marshall and each of the TCM VI Members (collectively, the "TCM VII Directors") are Class A Directors of Technology Crossover Management VII, Ltd. ("TCM VII") and limited partners of Technology Crossover Management VII, L.P. ("Management VII"). TCM VII is the general partner of Management VII, which is the general partner of TCV VII, L.P. The TCM VII Directors, TCM VII and Management VII may be deemed to beneficially own the securities held by TCV VII, L.P., but the TCM VII Directors, TCM VII and Management VII disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.
(3) These securities are directly held by TCV VII (A), L.P. The TCM VII Directors are Class A Directors of TCM VII and limited partners of Management VII. TCM VII is the general partner of Management VII, which is the general partner of TCV VII (A), L.P. The TCM VII Directors, TCM VII and Management VII may be deemed to beneficially own the securities held by TCV VII (A), L.P., but the TCM VII Directors, TCM VII and Management VII disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.
(4) These securities are directly held by TCV Member Fund, L.P. ("TCV MF"). The TCM VII Directors are Class A Directors of TCM VII, which is a general partner of TCV MF, and limited partners of TCV MF. The TCM VI Members are Class A Members of TCM VI, which is also a general partner of TCV MF. The TCM VII Directors, TCM VII, the TCM VI Members and TCM VI may be deemed to beneficially own certain of the securities held by TCV MF, but the TCM VII Directors, TCM VII, the TCM VI Members and TCM VI disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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