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The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALLIANCE DATA SYSTEMS CORP COM 018581108 12,138 47,887 SH   SOLE   47,887 0 0
ALLIANCE HOLDINGS GP LP COM UNITS LP 01861G100 1,964 73,321 SH   SOLE   73,321 0 0
ALPHABET INC CAP STK CL C 02079K305 12,870 12,300 SH   SOLE   12,300 0 0
BAIDU INC SPON ADR REP A 056752108 9,649 41,200 SH   SOLE   41,200 0 0
CARMAX INC COM 143130102 12,505 195,000 SH   SOLE   195,000 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 13,102 39,000 SH   SOLE   39,000 0 0
HALLADOR ENERGY COMPANY COM 40609P105 1,586 260,578 SH   SOLE   260,578 0 0
INTERACTIVE BROKERS GROUP IN COM 45841N107 18,915 319,469 SH   SOLE   319,469 0 0
STAR GROUP L P UNIT LTD PARTNR 85512C105 17,784 1,654,387 SH   SOLE   1,654,387 0 0
TRANSDIGM GROUP INC COM 893641100 13,485 49,106 SH   SOLE   49,106 0 0