FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * Frank Thomas AJ   2. Issuer Name and Ticker or Trading Symbol Interactive Brokers Group, Inc. [IBKR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Information Officer (Last) (First) (Middle) ONE PICKWICK PLAZA 3. Date of Earliest Transaction (Month/Day/Year) 12/31/2017 (Street) GREENWICH, CT 06830 4. If Amendment, Date Original Filed(Month/Day/Year) 01/03/2018 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 Class A common stock 12/31/2017   A   15,075 (1) A $ 0 (1) 326,902 (2) D

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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Frank Thomas AJ ONE PICKWICK PLAZA GREENWICH, CT 06830			Chief Information Officer

Signatures

/s/ Raymond Bussiere as authorized signatory for Thomas AJ Frank		04/06/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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 represents a grant of restricted stock units under the amended 2007 Stock Incentive Plan, pending stockholder approval, that will vest 10% on 5/9/2018 and 15% on each of the first six anniversaries of 5/9/2018.
(2)	This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the 2007 Stock Incentive Plan ("Plan"), (b) unvested restricted stock units that were awarded under the Plan, and (c) 15,075 restricted stock units that will be issued under the amended 2007 Stock Incentive Plan ("Amended Plan") subject to shareholder approval of the Amended Plan.
Remarks: The original Form 4 incorrectly reported the restricted stock units of 15,075, to be issued under the Amended Plan, subject to shareholder approval of the Amended Plan, as restricted stock.

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