GROUP ONE TRADING LLC Q4 2019 Filing

Filed February 10, 2020

Portfolio Value

$14.7M

Holdings

5,086

Report Date

Q4 2019

Filing Type

13F-HR

All Holdings (5,086 positions)

#	Stock	Shares	Value	% Portfolio	Type
4001	—GLYCOMIMETICS INC	10,000	$53K	0.36%	Call
4002	—TAUBMAN CTRS INC	1,700	$53K	0.36%	Put
4003	GNLGLOBAL NET LEASE INC	2,621	$53K	0.36%
4004	—EIDOS THERAPEUTICS INC	915	$53K	0.36%
4005	—SCORPIO BULKERS INC	8,200	$52K	0.35%	Call
4006	CSTMCONSTELLIUM SE	3,900	$52K	0.35%	Put
4007	—SCORPIO BULKERS INC	8,200	$52K	0.35%	Put
4008	TBPHTHERAVANCE BIOPHARMA INC	2,000	$52K	0.35%	Put
4009	—AKCEA THERAPEUTICS INC	3,077	$52K	0.35%
4010	AERIEURAERIE PHARMACEUTICALS INC	2,125	$51K	0.35%
4011	ALCALCON INC	900	$51K	0.35%	Put
4012	SVRASAVARA INC	11,300	$51K	0.35%	Call
4013	ACLSAXCELIS TECHNOLOGIES INC	2,100	$51K	0.35%
4014	FATEFATE THERAPEUTICS INC	2,592	$51K	0.35%
4015	SIDCOMPANHIA SIDERURGICA NACION	14,913	$51K	0.35%
4016	TXTERNIUM SA	2,300	$51K	0.35%	Call
4017	—TRIUMPH GROUP INC NEW	2,000	$51K	0.35%	Call
4018	—SENIOR HSG PPTYS TR	5,989	$51K	0.35%
4019	TEXTEREX CORP NEW	1,700	$51K	0.35%
4020	IDNINTELLICHECK INC	6,800	$51K	0.35%	Call
4021	UFIUNIFI INC	2,008	$51K	0.35%
4022	BLMNBLOOMIN BRANDS INC	2,300	$51K	0.35%	Call
4023	—ENERGOUS CORP	28,900	$51K	0.35%	Put
4024	AXTIAXT INC	11,500	$50K	0.34%	Call
4025	—NV5 GLOBAL INC	1,000	$50K	0.34%	Put
4026	—REMARK HLDGS INC	96,500	$50K	0.34%	Call
4027	MDC1USDM D C HLDGS INC	1,300	$50K	0.34%
4028	—WESTLAKE CHEM PARTNERS LP	1,900	$50K	0.34%	Call
4029	—EPIZYME INC	2,000	$49K	0.33%	Put
4030	—DRIVE SHACK INC	13,500	$49K	0.33%	Call
4031	—CONTANGO OIL & GAS COMPANY	13,400	$49K	0.33%	Call
4032	VEEVVEEVA SYS INC	345	$49K	0.33%
4033	—CONCERT PHARMACEUTICALS INC	5,300	$49K	0.33%	Call
4034	PENPENUMBRA INC	300	$49K	0.33%	Call
4035	VLYVALLEY NATL BANCORP	4,300	$49K	0.33%	Call
4036	WERNWERNER ENTERPRISES INC	1,345	$49K	0.33%
4037	35OBSCULPTOR CAP MGMT	2,202	$49K	0.33%
4038	MYGNMYRIAD GENETICS INC	1,800	$49K	0.33%	Call
4039	—JUST ENERGY GROUP INC	28,400	$48K	0.33%	Call
4040	YRDYIREN DIGITAL LTD	8,652	$48K	0.33%
4041	—AERIE PHARMACEUTICALS INC	2,000	$48K	0.33%	Call
4042	—LIBERTY GLOBAL PLC	2,100	$48K	0.33%	Call
4043	KALAKALA PHARMACEUTICALS INC	12,932	$48K	0.33%
4044	SCCOSOUTHERN COPPER CORP	1,125	$48K	0.33%
4045	—LIVENT CORP	5,600	$48K	0.33%	Call
4046	CRKCOMSTOCK RES INC	5,852	$48K	0.33%
4047	—MTS SYS CORP	1,000	$48K	0.33%	Put
4048	—INVESCO MORTGAGE CAPITAL INC	2,900	$48K	0.33%	Put
4049	ALAIR LEASE CORP	1,000	$48K	0.33%	Call
4050	RGRSTURM RUGER & CO INC	1,000	$47K	0.32%	Call
4051	—CELLCOM ISRAEL LTD	14,811	$47K	0.32%
4052	BANDBANDWIDTH INC	737	$47K	0.32%
4053	NFGNATIONAL FUEL GAS CO N J	1,012	$47K	0.32%
4054	RDHLREDHILL BIOPHARMA LTD	7,700	$47K	0.32%	Put
4055	—RA PHARMACEUTICALS INC	1,000	$47K	0.32%	Put
4056	—ZIX CORP	6,980	$47K	0.32%
4057	—VIRNETX HLDG CORP	12,300	$47K	0.32%	Call
4058	SNDXSYNDAX PHARMACEUTICALS INC	5,400	$47K	0.32%	Call
4059	—GAIN CAP HLDGS INC	11,800	$47K	0.32%	Call
4060	AQUAUSDEVOQUA WATER TECHNOLOGIES CO	2,479	$47K	0.32%
4061	—VIEWRAY INC	10,900	$46K	0.31%	Call
4062	—ROYAL BK SCOTLAND GROUP PLC	7,100	$46K	0.31%	Put
4063	—NATUS MEDICAL INC	1,394	$46K	0.31%
4064	—ATHERSYS INC	37,100	$46K	0.31%	Put
4065	MLKNMILLER HERMAN INC	1,093	$46K	0.31%
4066	—ANIXTER INTL INC	500	$46K	0.31%	Call
4067	NOAHNOAH HLDGS LTD	1,295	$46K	0.31%
4068	—M D C HLDGS INC	1,200	$46K	0.31%	Call
4069	MIMEMIMECAST LTD	1,049	$46K	0.31%
4070	—NEW RELIC INC	700	$46K	0.31%	Call
4071	OPLNKAR AUCTION SVCS INC	2,100	$46K	0.31%	Put
4072	LPLALPL FINL HLDGS INC	500	$46K	0.31%	Put
4073	—PREFERRED APT CMNTYS INC	3,400	$45K	0.31%	Put
4074	—ANWORTH MORTGAGE ASSET CP	12,800	$45K	0.31%
4075	OMEXODYSSEY MARINE EXPLORATION I	14,114	$45K	0.31%
4076	—BLACK KNIGHT INC	700	$45K	0.31%	Call
4077	CRTOCRITEO S A	2,600	$45K	0.31%	Call
4078	—ANWORTH MORTGAGE ASSET CP	12,900	$45K	0.31%	Put
4079	MCMOELIS & CO	1,400	$45K	0.31%	Call
4080	LPLLG DISPLAY CO LTD	6,500	$45K	0.31%	Call
4081	—OCWEN FINL CORP	32,700	$45K	0.31%	Call
4082	RXNEURREXNORD CORP NEW	1,389	$45K	0.31%
4083	UISUNISYS CORP	3,805	$45K	0.31%
4084	BRKRBRUKER CORP	876	$45K	0.31%
4085	—WASHINGTON PRIME GROUP NEW	12,200	$44K	0.30%	Call
4086	ADPTADAPTIVE BIOTECHNOLOGIES COR	1,478	$44K	0.30%
4087	—CSOP ETF TR	2,500	$44K	0.30%	Put
4088	SOHUSOHU COM LTD	3,900	$44K	0.30%	Put
4089	S76STORE CAP CORP	1,173	$44K	0.30%
4090	WERNWERNER ENTERPRISES INC	1,200	$44K	0.30%	Call
4091	—NANTKWEST INC	11,334	$43K	0.29%
4092	GLADUSDGLADSTONE CAPITAL CORP	4,330	$43K	0.29%
4093	—BARNES & NOBLE ED INC	10,000	$43K	0.29%	Call
4094	VVVVALVOLINE INC	2,000	$43K	0.29%	Put
4095	LWLAMB WESTON HLDGS INC	500	$43K	0.29%	Put
4096	—TSAKOS ENERGY NAVIGATION LTD	9,900	$43K	0.29%	Call
4097	BXCBLUELINX HLDGS INC	3,048	$43K	0.29%
4098	—LEGG MASON INC	1,200	$43K	0.29%	Call
4099	CYHCOMMUNITY HEALTH SYS INC NEW	14,826	$43K	0.29%
4100	JEGBPJUST ENERGY GROUP INC	25,279	$42K	0.29%

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