GROUP ONE TRADING LLC Q4 2018 Filing

Filed February 6, 2019

Portfolio Value

$11.5T

Holdings

4,844

Report Date

Q4 2018

Filing Type

13F-HR

All Holdings (4,844 positions)

#	Stock	Shares	Value	% Portfolio	Type
1	DHRDANAHER CORP DEL	9,700	$1.0B	0.01%	Call
2	—FITBIT INC	201,284	$1.0B	0.01%
3	PANWPALO ALTO NETWORKS INC	5,300	$998.0M	0.01%	Put
4	—COLUMBIA FINL INC	65,300	$998.0M	0.01%	Put
5	ACHCACADIA HEALTHCARE COMPANY IN	38,819	$998.0M	0.01%
6	WUBAUSD58 COM INC	18,392	$997.0M	0.01%
7	TBCHTURTLE BEACH CORP	69,900	$997.0M	0.01%	Put
8	BAHBOOZ ALLEN HAMILTON HLDG COR	22,100	$996.0M	0.01%	Call
9	XLNXEURXILINX INC	11,633	$991.0M	0.01%
10	MASMASCO CORP	33,900	$991.0M	0.01%	Put
11	—AXIS CAPITAL HOLDINGS LTD	19,200	$991.0M	0.01%	Put
12	PSXPHILLIPS 66	11,500	$991.0M	0.01%	Call
13	OLLIOLLIES BARGAIN OUTLT HLDGS I	14,891	$990.0M	0.01%
14	—GUESS INC	47,600	$989.0M	0.01%	Put
15	—AVEO PHARMACEUTICALS INC	617,700	$988.0M	0.01%	Put
16	—NOVAGOLD RES INC	250,100	$988.0M	0.01%	Call
17	—CYPRESS SEMICONDUCTOR CORP	77,600	$987.0M	0.01%	Call
18	STMSTMICROEL ECTRONICS N V	71,100	$987.0M	0.01%	Put
19	ALRMALARM COM HLDGS INC	19,000	$986.0M	0.01%	Put
20	—ACORDA THERAPEUTICS INC	63,200	$985.0M	0.01%	Put
21	STMSTMICROEL ECTRONICS N V	70,826	$983.0M	0.01%
22	BAXBAXTER INTL INC	14,900	$981.0M	0.01%	Put
23	—ROSETTA STONE INC	59,800	$981.0M	0.01%	Call
24	HUNHUNTSMAN CORP	50,700	$978.0M	0.01%	Call
25	YYEURYY INC	16,328	$977.0M	0.01%
26	YRDYIRENDAI LTD	90,512	$973.0M	0.01%
27	—WILLIAMS COS INC DEL	44,100	$972.0M	0.01%	Put
28	MSBMESABI TR	40,900	$969.0M	0.01%	Call
29	SFIXSTITCH FIX INC	56,700	$969.0M	0.01%	Put
30	MURMURPHY OIL CORP	41,400	$968.0M	0.01%	Put
31	FTITECHNIPFMC PLC	49,300	$965.0M	0.01%	Call
32	—BEMIS INC	21,000	$964.0M	0.01%	Put
33	—EATON VANCE CORP	27,200	$957.0M	0.01%	Call
34	—ANGI HOMESERVICES INC	59,400	$955.0M	0.01%	Call
35	—OFFICE DEPOT INC	370,100	$955.0M	0.01%	Call
36	—DENBURY RES INC	558,700	$955.0M	0.01%	Put
37	—TIVO CORP	101,400	$954.0M	0.01%	Put
38	—NUANCE COMMUNICATIONS INC	72,100	$954.0M	0.01%	Call
39	TRQEURTURQUOISE HILL RES LTD	577,582	$953.0M	0.01%
40	VEONVEON LTD	405,500	$949.0M	0.01%	Put
41	—PVH CORP	10,200	$948.0M	0.01%	Put
42	—ROYAL DUTCH SHELL PLC	15,800	$947.0M	0.01%	Put
43	—CITRIX SYS INC	9,200	$943.0M	0.01%	Put
44	HAINHAIN CELESTIAL GROUP INC	59,400	$942.0M	0.01%	Put
45	RGLDROYAL GOLD INC	11,000	$942.0M	0.01%	Put
46	ANFABERCROMBIE & FITCH CO	46,956	$941.0M	0.01%
47	—DAVE & BUSTERS ENTMT INC	21,100	$940.0M	0.01%	Call
48	—WEATHERFORD INTL PLC	1,677,100	$938.0M	0.01%	Put
49	TRUPTRUPANION INC	36,800	$937.0M	0.01%	Put
50	BCBRUNSWICK CORP	20,100	$934.0M	0.01%	Call
51	CAHCARDINAL HEALTH INC	20,900	$932.0M	0.01%	Put
52	TPCTUTOR PERINI CORP	58,100	$928.0M	0.01%	Call
53	—MELLANOX TECHNOLOGIES LTD	10,009	$925.0M	0.01%
54	—SIRIUS XM HLDGS INC	161,400	$922.0M	0.01%	Put
55	—FIBROGEN INC	19,900	$921.0M	0.01%	Call
56	—MARINUS PHARMACEUTICALS INC	320,200	$919.0M	0.01%	Put
57	TMOTHERMO FISHER SCIENTIFIC INC	4,100	$918.0M	0.01%	Call
58	GLPGGALAPAGOS NV	10,000	$917.0M	0.01%	Put
59	—ENERGOUS CORP	158,000	$915.0M	0.01%	Put
60	—KANDI TECHNOLOGIES GROUP INC	252,000	$915.0M	0.01%	Put
61	—AMERICAN AXLE & MFG HLDGS IN	82,300	$914.0M	0.01%	Put
62	SLMSLM CORP	110,010	$914.0M	0.01%
63	—HI-CRUSH PARTNERS LP	254,900	$913.0M	0.01%	Put
64	URIUNITED RENTALS INC	8,900	$913.0M	0.01%	Put
65	—PORTOLA PHARMACEUTICALS INC	46,700	$912.0M	0.01%	Put
66	BANCBANC OF CALIFORNIA INC	68,435	$911.0M	0.01%
67	CMTLCOMTECH TELECOMMUNICATIONS C	37,400	$910.0M	0.01%	Call
68	PBFPBF ENERGY INC	27,800	$908.0M	0.01%	Call
69	—CAMBREX CORP	24,000	$906.0M	0.01%	Put
70	WINGWINGSTOP INC	14,100	$905.0M	0.01%	Put
71	FLRFLUOR CORP NEW	28,100	$905.0M	0.01%	Call
72	HIGHARTFORD FINL SVCS GROUP INC	20,329	$904.0M	0.01%
73	NVMINOVA MEASURING INSTRUMENTS L	39,600	$902.0M	0.01%	Call
74	—VULCAN MATLS CO	9,100	$899.0M	0.01%	Put
75	VNDAVANDA PHARMACEUTICALS INC	34,400	$899.0M	0.01%	Call
76	CAKECHEESECAKE FACTORY INC	20,600	$896.0M	0.01%	Call
77	CMCDN IMPERIAL BK COMM TORONTO	12,027	$896.0M	0.01%
78	—PORTOLA PHARMACEUTICALS INC	45,866	$895.0M	0.01%
79	NBIXNEUROCRINE BIOSCIENCES INC	12,500	$893.0M	0.01%	Call
80	—EMERGE ENERGY SVCS LP	578,400	$891.0M	0.01%	Put
81	INFNEURINFINERA CORPORATION	223,164	$890.0M	0.01%
82	SOGOGBPSOGOU INC	169,564	$890.0M	0.01%
83	—PENNEY J C INC	855,200	$889.0M	0.01%	Put
84	—ALLY FINL INC	39,200	$888.0M	0.01%	Call
85	—RADIUS HEALTH INC	53,700	$886.0M	0.01%	Put
86	NVDANVIDIA CORP	6,629	$885.0M	0.01%
87	PHGKONINKLIJKE PHILIPS N V	25,190	$884.0M	0.01%
88	ARANTERO RES CORP	94,100	$884.0M	0.01%	Call
89	RGENREPLIGEN CORP	16,700	$881.0M	0.01%	Call
90	KHCKRAFT HEINZ CO	20,470	$881.0M	0.01%
91	VICRVICOR CORP	23,313	$881.0M	0.01%
92	UPLDUPLAND SOFTWARE INC	32,300	$878.0M	0.01%	Put
93	PIIMPINJ INC	60,200	$876.0M	0.01%	Put
94	—TEEKAY OFFSHORE PARTNERS L P	720,332	$872.0M	0.01%
95	LITELUMENTUM HLDGS INC	20,731	$871.0M	0.01%
96	—TRITON INTL LTD	28,000	$870.0M	0.01%	Call
97	SESEA LTD	76,700	$868.0M	0.01%	Put
98	STLDSTEEL DYNAMICS INC	28,900	$868.0M	0.01%	Call
99	PIIPOLARIS INDS INC	11,300	$866.0M	0.01%	Put
100	PIIPOLARIS INDS INC	11,300	$866.0M	0.01%	Call

Page 1 of 49Next