UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C. 20549



                                    SCHEDULE 13G

                                    Under the Securities Exchange Act of 1934


                              Issuer-CBOE Holdings, Inc.

                            Securities Class-common

                                         CUSIP Number-12503M108

                             Event  Requiring Filing -May 2011

                              Filed pursuant to Rule 13d-1(b)

                             CUSIP  Number 12503M108

                              Reporter- Horizon Kinetics LLC
                              Tax ID#45-0642972

                               Place of Organization-Delaware

                                Number of Shares-sole voting power-10,857,166
                                Sole dispositive power-10,857,166
                                Amount beneficially owned-10,857,166


                                Percent of Class represented by above-20.9618%

                                 Type of Reporting Person-HC

Name of Issuer-CBOE Holdings, Inc.
Address of Issuer-400 South LaSalle Street, Chicago, Illinois 60605

Name of Person Filing-Horizon Kinetics LLC
Address -470 Park Avenue South, 4th Floor South, NY, NY, 10016
Citizenship-Delaware
 Securities Class-common stock

Filing re Section 240.13d-1(b) by investment
adviser under Section 240.13d-1(b)(1)(ii)(E).
Amount beneficially owned-10,857,166
Percent of class-20.9618%
sole voting power-10,857,166
shared power to vote or direct the vote-0
sole power to dispose/direct the disposition-10,857,166
shared power to dispose/direct the disposition-0

Reporter-Horizon Asset Management, LLC
Tax ID #13-3776334
Place of Organization-Delaware
Number of Shares-sole voting power-5,848,094
sole dispositive power-5,848,094
amount beneficially owned-5,848,094
percent of class represented by above-11.291%
type of reporting person-IA

Name of Issuer-CBOE Holdings, Inc.
Address of Issuer-400 South LaSalle Street, Chicago, Illinois 60605
Name of Person Filing-Horizon Asset Management, LLC
Address-470 Park Avenue South, 4th Floor South, NY, NY 10016
Citizenship-Delaware
Securities Class-common stock
Filing re Section 240.13d-1(b) by investment adviser under Section
240.13d-1(b)(1))ii) (E)
Amount beneficially owned-5,848,094
percent of class 11.291%
sole voting power-5,848,094
shared power to vote or direct the vote-0
sole power to dispose/direct the disposition-5,848,094
shared power to dispose/direct the dispostion-0


Certification pursuant to Section 240.13d-1(b):
 By signing below I certify that, to the
best of my 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.

After reasonable inquiry and to the best of
 my knowledge and belief, I certify that the
information set forth in this statement is
 true, complete and correct.

Date-June 10, 2011
Signature-Andrew M. Fishman
Title-Associate General Counsel

EXHIBIT A
This joint filing agreement dated JUne 10, 2011 is by and
among Horizon Kinetics LLC and Horizon Asset Management, LLC
("the Filing Persons").
Each of the filing persons may be required to file with the
United States Securities and Exchange Commission a statement on
Schedule G with respect to the common stock of Texas Pacific Land
Trust beneficially owned by them from time to time.
Pursuant to and in accordance with Rule 13(d)(1) (k) promulgated
under the Securities Exchange Act of 1934, as amended, the Filing
Persons hereby agree to file a single statement on Schedule G
and any amendments thereto on behalf of each such parties, and hereby
further agree to file this Joint Filing Agreement as an exhibit to
such statement, as required by such rule.
This joint filing agreement may be terminated by any of filers upon
one week's written notice or such lesser period of notice as the
Filing Persons many mutually agree.

Horizon Kinetics LLC and Horizon Asset Management,LLC
by Andrew M. Fishman, Associate General Counsel of each.
June 10, 2011