Filing Details

This statement amends and supplements the Schedule 13G filed by the Reporting Persons (as defined below) on February 16, 2016.  Except as set forth herein, the Schedule 13G is unmodified. This statement reflects the beneficial ownership of the Reporting Persons as of January 20, 2017.

Item 1(a).

Name of Issuer:

Interactive Brokers Group, Inc. (the "Issuer")

Item 1(b).

Address of Issuer's Principal Executive Offices:

One Pickwick Plaza
Greenwich, Connecticut 06830

Item 2(a).

Name of Persons Filing:

The names of the persons filing this statement on Schedule 13G are (collectively, the "Reporting Persons"):

-	Kylin Offshore Master Fund Ltd. ("Offshore Fund")

-	Kylin Offshore Long Master Fund Ltd. ("Offshore Long Fund")

-	Kylin Management LLC ("Kylin Management")

-	Mr. Ted Kang ("Mr. Kang")

Kylin Management, which is controlled by Mr. Kang,  is the investment manager of the Offshore Fund, the Offshore Long Fund and other accounts it separately manages (the "Separately Managed Accounts"). Kylin Management and Mr. Kang may each be deemed to have voting and dispositive power with respect to the Ordinary Shares (as defined below) held by the Offshore Fund, the Offshore Long Fund and the Separately Managed Accounts.

Item 2(b).

Address of Principal Business Office or, if None, Residence:

The business address of each of Kylin Management  and Mr. Kang is 475 Fifth Ave, 11^th Floor, New York, NY 10017.

The business address of the Offshore Fund and the Offshore Long Fund is c/o Citco (Canada) Inc. 2 Bloor Street, Suite 2700, Toronto, Ontario M4W 1A8, Canada.

Item 2(c).

Citizenship:

Mr. Kang is a citizen of the United States.

Kylin Management is a limited liability company formed under the laws of the State of Delaware.

The Offshore Fund and the Offshore Long Fund are each a company formed under the laws of the Cayman Islands.

Item 2(d).

Title of Class of Securities:

Class A Common Stock, $0.01 par value per share (the "Common Shares")

Item 2(e).

CUSIP Number:

45841N107

Item 4.

Ownership.

As of the date hereof, the Reporting Persons no longer beneficially own any shares of Common Stock.

Item 5.

Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].

Item 10.

Certification.

By signing below the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

 

SIGNATURES

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct.

Dated:  February 14, 2017

KYLIN OFFSHORE MASTER FUND LTD.

By: Kylin Management LLC, as Investment Manager

By:  /s/ Jake H. Park
              Jake H. Park, Chief Compliance Officer

KYLIN OFFSHORE LONG MASTER FUND LTD.

By: Kylin Management LLC, as Investment Manager

By:  /s/ Jake H. Park
              Jake H. Park, Chief Compliance Officer

KYLIN MANAGEMENT LLC

By:  /s/ Jake H. Park
              Jake H. Park, Chief Compliance Officer

                              

                                /s/ Ted Kang
                                     Ted Kang