SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Trudeau Robert (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Interactive Brokers Group, Inc. [ IBKR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group
	3. Date of Earliest Transaction (Month/Day/Year) 12/31/2009
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/31/2009		A		4,233(1)	A	$0	4,233	I	Robert W. Trudeau(2)
Common Stock								1,487,970	I	TCV VI, L.P.(3)
Common Stock								2,289,635	I	TCV VII, L.P.(4)
Common Stock								1,189,061	I	TCV VII (A), L.P.(5)
Common Stock								33,334	I	TCV Member Fund, L.P.(6)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Trudeau Robert (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* HOAG JAY C (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* KIMBALL RICK (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* DREW JOHN (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* REYNOLDS JON Q JR (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* GRIFFITH WILLIAM (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

1. Name and Address of Reporting Person* Marshall Christopher P (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET (Street) PALO ALTO CA 94301 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) May be part of a 13(d) group

Explanation of Responses:

1. Represents a grant of restricted stock which will vest in five equal annual installments, beginning on December 31, 2010.

2. These shares of restricted stock are directly held by Robert W. Trudeau. Mr. Trudeau has the sole voting and dispositive power over the shares; however, TCV VI Management, L.L.C. ("Management VI") and TCV VII Management, L.L.C. ("Management VII") collectively own 100% of the pecuniary interest therein. Mr. Trudeau, Jay C. Hoag, Richard H. Kimball, John L. Drew, Jon Q. Reynolds, Jr., and William J.G. Griffith IV (collectively, the "TCM VI Members") are members of Management VI and each of the TCM VI Members and Christopher P. Marshall (collectively, the "TCM VII Members") are members of Management VII, but each disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein.

3. These securities are directly held by TCV VI, L.P. The TCM VI Members are Class A Members of Technology Crossover Management VI, L.L.C. ("TCM VI"), which is the sole general partner of TCV VI, L.P. The TCM VI Members and TCM VI may be deemed to beneficially own the securities held by TCV VI, L.P., but the TCM VI Members and TCM VI disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

4. These securities are directly held by TCV VII, L.P. The TCM VII Members are Class A Directors of Technology Crossover Management VII, Ltd. ("TCM VII") and limited partners of Technology Crossover Management VII, L.P. ("TCM VII LP"). TCM VII is the general partner of TCM VII LP, which is the general partner of TCV VII, L.P. The TCM VII Members, TCM VII and TCM VII LP may be deemed to beneficially own the securities held by TCV VII, L.P., but the TCM VII Members , TCM VII and TCM VII LP disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

5. These securities are directly held by TCV VII (A), L.P. The TCM VII Members are Class A Directors of TCM VII and limited partners of TCM VII LP. TCM VII is the general partner of TCM VII LP, which is the general partner of TCV VII (A), L.P. The TCM VII Members, TCM VII and TCM VII LP may be deemed to beneficially own the securities held by TCV VII (A), L.P., but the TCM VII Members, TCM VII and TCM VII LP disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

6. These securities are directly held by TCV Member Fund, L.P. ("TCV MF"). The TCM VII Members 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 Members, 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 Members, TCM VII, the TCM VI Members and TCM VI disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Remarks:

	Frederic D. Fenton Authorized signatory for Robert W. Trudeau	01/05/2010
	Frederic D. Fenton Authorized signatory for Jay C. Hoag	01/05/2010
	Frederic D. Fenton Authorized signatory for Richard H. Kimball	01/05/2010
	Frederic D. Fenton Authorized signatory for John L. Drew	01/05/2010
	Frederic D. Fenton Authorized signatory for Jon Q. Reynolds, Jr.	01/05/2010
	Frederic D. Fenton Authorized signatory for William J.G. Griffith IV	01/05/2010
	Frederic D. Fenton Authorized signatory for Christopher P. Marshall	01/05/2010
	** Signature of Reporting Person	Date
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* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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