GROUP ONE TRADING LLC Q2 2019 Filing

Filed August 9, 2019

Portfolio Value

$11.1M

Holdings

4,933

Report Date

Q2 2019

Filing Type

13F-HR

All Holdings (4,933 positions)

#	Stock	Shares	Value	% Portfolio	Type
4001	JELDJELD-WEN HLDG INC	1,500	$32K	0.29%	Call
4002	PWIPOWER INTEGRATIONS INC	400	$32K	0.29%
4003	GNTXGENTEX CORP	1,300	$32K	0.29%
4004	GLPGLOBAL PARTNERS LP	1,600	$32K	0.29%	Put
4005	CALXCALIX INC	4,857	$32K	0.29%
4006	—ATHERSYS INC	19,300	$32K	0.29%	Put
4007	—TALLGRASS ENERGY LP	1,500	$32K	0.29%	Put
4008	EZPWEZCORP INC	3,341	$32K	0.29%
4009	IRWDIRONWOOD PHARMACEUTICALS INC	2,900	$32K	0.29%	Call
4010	SXCSUNCOKE ENERGY INC	3,600	$32K	0.29%	Call
4011	—PROTHENA CORP PLC	3,000	$32K	0.29%	Put
4012	—UNITED STS GASOLINE FD LP	1,000	$31K	0.28%	Put
4013	MRCYMERCURY SYS INC	440	$31K	0.28%
4014	—NABRIVA THERAPEUTICS PLC	12,800	$31K	0.28%	Put
4015	—CLOROX CO DEL	200	$31K	0.28%	Call
4016	—PHOENIX NEW MEDIA LTD	9,500	$31K	0.28%	Call
4017	WPPWPP PLC NEW	500	$31K	0.28%	Put
4018	—MERRIMACK PHARMACEUTICALS IN	5,200	$31K	0.28%	Call
4019	VSHVISHAY INTERTECHNOLOGY INC	1,900	$31K	0.28%	Put
4020	VCRAUSDVOCERA COMMUNICATIONS INC	983	$31K	0.28%
4021	—COMPANHIA ENERGETICA DE MINA	8,200	$31K	0.28%	Call
4022	KROKRONOS WORLDWIDE INC	2,000	$31K	0.28%	Put
4023	—STEELCASE INC	1,800	$31K	0.28%	Put
4024	BZHBEAZER HOMES USA INC	3,200	$31K	0.28%	Call
4025	WVEWAVE LIFE SCIENCES LTD	1,200	$31K	0.28%	Call
4026	—TRIVAGO N V	7,427	$31K	0.28%
4027	—BRITISH AMERN TOB PLC	900	$31K	0.28%	Call
4028	DLTHDULUTH HLDGS INC	2,266	$31K	0.28%
4029	—RENREN INC	32,424	$31K	0.28%
4030	IVPEFISHARES INC	600	$31K	0.28%	Put
4031	—BRIGGS & STRATTON CORP	3,000	$31K	0.28%	Call
4032	—MOBILEIRON INC	5,000	$31K	0.28%	Put
4033	—AROTECH CORP	15,000	$30K	0.27%	Put
4034	MSBMESABI TR	1,000	$30K	0.27%	Put
4035	KPTIKARYOPHARM THERAPEUTICS INC	5,000	$30K	0.27%	Put
4036	—AZUL S A	900	$30K	0.27%	Call
4037	—FORESCOUT TECHNOLOGIES INC	900	$30K	0.27%	Call
4038	BXPBOSTON PROPERTIES INC	229	$30K	0.27%
4039	—SUNESIS PHARMACEUTICALS INC	40,800	$30K	0.27%	Call
4040	—MEET GROUP INC	8,700	$30K	0.27%	Call
4041	CROXCROCS INC	1,500	$30K	0.27%	Put
4042	—CHUYS HLDGS INC	1,300	$30K	0.27%	Call
4043	FATEFATE THERAPEUTICS INC	1,464	$30K	0.27%
4044	TMOTHERMO FISHER SCIENTIFIC INC	100	$29K	0.26%	Call
4045	—CORNERSTONE ONDEMAND INC	500	$29K	0.26%	Put
4046	HEPUSDHOLLY ENERGY PARTNERS L P	1,065	$29K	0.26%
4047	—SUPERIOR ENERGY SVCS INC	21,940	$29K	0.26%
4048	EXCEXELON CORP	600	$29K	0.26%	Put
4049	JAZZJAZZ PHARMACEUTICALS PLC	200	$29K	0.26%	Call
4050	ACAARCOSA INC	781	$29K	0.26%
4051	LASRNLIGHT INC	1,500	$29K	0.26%	Call
4052	IAUUSDISHARES GOLD TRUST	2,122	$29K	0.26%
4053	—QUICKLOGIC CORP	50,000	$29K	0.26%	Put
4054	—ALDER BIOPHARMACEUTICALS INC	2,500	$29K	0.26%	Put
4055	—CHANGYOU COM LTD	3,000	$29K	0.26%	Call
4056	NBL2EURNOBLE ENERGY INC	1,279	$29K	0.26%
4057	TRIPTRIPADVISOR INC	600	$28K	0.25%	Put
4058	DXCDXC TECHNOLOGY CO	500	$28K	0.25%	Put
4059	CTRPUSDCTRIP COM INTL LTD	771	$28K	0.25%
4060	SOHUSOHU COM LTD	2,000	$28K	0.25%	Call
4061	RESRPC INC	3,900	$28K	0.25%	Call
4062	YUMCYUM CHINA HLDGS INC	600	$28K	0.25%	Put
4063	—LIPOCINE INC NEW	14,140	$28K	0.25%
4064	BCCBOISE CASCADE CO DEL	1,000	$28K	0.25%	Call
4065	TXM1TRAVELZOO	1,843	$28K	0.25%
4066	MVOMV OIL TR	3,506	$28K	0.25%
4067	—DESPEGAR COM CORP	2,000	$28K	0.25%	Call
4068	MFCMANULIFE FINL CORP	1,500	$27K	0.24%	Put
4069	KPTIKARYOPHARM THERAPEUTICS INC	4,500	$27K	0.24%	Call
4070	—PATTERSON COMPANIES INC	1,200	$27K	0.24%	Call
4071	—MEI PHARMA INC	10,700	$27K	0.24%	Put
4072	CODICOMPASS DIVERSIFIED HOLDINGS	1,400	$27K	0.24%	Put
4073	SFESSAFEGUARD SCIENTIFICS INC	2,275	$27K	0.24%
4074	IPGINTERPUBLIC GROUP COS INC	1,193	$27K	0.24%
4075	ALLOALLOGENE THERAPEUTICS INC	1,000	$27K	0.24%	Put
4076	ASAASA GOLD AND PRECIOUS MTLS L	2,300	$26K	0.24%
4077	TSTENARIS S A	1,000	$26K	0.24%	Call
4078	—CBL & ASSOC PPTYS INC	25,074	$26K	0.24%
4079	—CONTAINER STORE GROUP INC	3,600	$26K	0.24%	Call
4080	NVMINOVA MEASURING INSTRUMENTS L	1,000	$26K	0.24%	Call
4081	—JUPAI HLDGS LTD	11,467	$26K	0.24%
4082	CLNECLEAN ENERGY FUELS CORP	9,800	$26K	0.24%	Call
4083	—CARBONITE INC	1,000	$26K	0.24%	Call
4084	NYTNEW YORK TIMES CO	800	$26K	0.24%	Put
4085	—INTERSECT ENT INC	1,100	$25K	0.23%	Put
4086	—DIAMOND S SHIPPING INC	1,972	$25K	0.23%
4087	—MOMENTA PHARMACEUTICALS INC	2,000	$25K	0.23%	Put
4088	—RUBICON PROJ INC	3,900	$25K	0.23%	Call
4089	RDWRRADWARE LTD	1,000	$25K	0.23%	Put
4090	—QUICKLOGIC CORP	43,412	$25K	0.23%
4091	—STEMLINE THERAPEUTICS INC	1,600	$25K	0.23%	Call
4092	—ONCOCYTE CORPORATION	10,100	$25K	0.23%	Call
4093	—PARATEK PHARMACEUTICALS INC	6,200	$25K	0.23%	Call
4094	MCRBSERES THERAPEUTICS INC	7,700	$25K	0.23%	Put
4095	PPCPILGRIMS PRIDE CORP NEW	1,000	$25K	0.23%	Put
4096	CECELANESE CORP DEL	234	$25K	0.23%
4097	HCPHCP INC	785	$25K	0.23%
4098	WRAPWRAP TECHNOLOGIES INC	4,000	$25K	0.23%	Call
4099	—SMTC CORP	6,500	$25K	0.23%	Call
4100	SESNSESEN BIO INC	16,631	$25K	0.23%

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