GROUP ONE TRADING LLC Q1 2021 Filing

Filed May 12, 2021

Portfolio Value

$67.5M

Holdings

7,548

Report Date

Q1 2021

Filing Type

13F-HR

All Holdings (7,548 positions)

#	Stock	Shares	Value	% Portfolio	Type
4101	—SESEN BIO INC	171,600	$446K	0.66%	Put
4102	—SPARTAN ACQUISITION CORP II	42,500	$445K	0.66%	Call
4103	ETRNUSDEQUITRANS MIDSTREAM CORP	54,441	$444K	0.66%
4104	SMSISMITH MICRO SOFTWARE INC	80,727	$444K	0.66%
4105	—BIOSIG TECHNOLOGIES INC	103,100	$444K	0.66%	Call
4106	NVTNVENT ELECTRIC PLC	15,900	$444K	0.66%	Call
4107	AJRDEURAEROJET ROCKETDYNE HLDGS INC	9,449	$444K	0.66%
4108	IOVAIOVANCE BIOTHERAPEUTICS INC	14,035	$444K	0.66%
4109	TRPTC ENERGY CORP	9,700	$444K	0.66%	Put
4110	ZDJ2 GLOBAL INC	3,700	$443K	0.66%	Call
4111	DBAINVESCO DB US DLR INDEX TR	21,100	$442K	0.65%	Call
4112	ALTGALTA EQUIPMENT GROUP INC	3,400	$442K	0.65%	Put
4113	GOEVQCANOO INC	48,828	$441K	0.65%
4114	AMXAMERICA MOVIL SAB DE CV	32,500	$441K	0.65%	Call
4115	CERSCERUS CORP	73,400	$441K	0.65%	Put
4116	AZTABROOKS AUTOMATION INC NEW	5,400	$441K	0.65%	Put
4117	—BHP GROUP PLC	7,600	$440K	0.65%	Put
4118	IMMRIMMERSION CORP	45,800	$439K	0.65%	Call
4119	TRMKTRUSTMARK CORP	1,300	$438K	0.65%	Call
4120	VKTXVIKING THERAPEUTICS INC	69,273	$438K	0.65%
4121	CURICURIOSITYSTREAM INC	32,353	$438K	0.65%
4122	CMCANADIAN IMP BK COMM	4,471	$438K	0.65%
4123	TECLDIREXION SHS ETF TR	10,590	$438K	0.65%
4124	ATHMAUTOHOME INC	4,700	$438K	0.65%	Put
4125	—ATLAS CORP	32,000	$437K	0.65%	Call
4126	—REGIS CORP MINN	34,700	$436K	0.65%	Put
4127	—SPARTAN ACQUISITION CORP II	41,700	$436K	0.65%	Put
4128	RVTYPERKINELMER INC	3,400	$436K	0.65%	Put
4129	HBANHUNTINGTON BANCSHARES INC	27,700	$435K	0.64%	Put
4130	LINDLINDBLAD EXPEDITIONS HLDGS I	23,000	$435K	0.64%	Put
4131	EAFEURGRAFTECH INTL LTD	35,579	$435K	0.64%
4132	TROXTRONOX HOLDINGS PLC	23,700	$434K	0.64%	Call
4133	—WESTERN ASSET MTG CAP CORP	136,200	$434K	0.64%	Call
4134	SCCOSOUTHERN COPPER CORP	6,400	$434K	0.64%	Put
4135	—ALEXCO RESOURCE CORP	173,100	$434K	0.64%	Put
4136	AXTAAXALTA COATING SYS LTD	14,600	$432K	0.64%	Put
4137	GPMTGRANITE PT MTG TR INC	36,110	$432K	0.64%
4138	—LANNET INC	81,700	$431K	0.64%	Put
4139	XYLXYLEM INC	4,100	$431K	0.64%	Call
4140	SLCAU S SILICA HLDGS INC	35,075	$431K	0.64%
4141	CGCARLYLE GROUP INC	11,700	$430K	0.64%	Put
4142	—SHELL MIDSTREAM PARTNERS L P	32,200	$430K	0.64%	Call
4143	DBAINVESCO DB MULTI-SECTOR COMM	25,400	$430K	0.64%	Put
4144	STSENSATA TECHNOLOGIES HLDG PL	7,400	$429K	0.64%	Call
4145	—COLFAX CORP	9,800	$429K	0.64%	Put
4146	GLPIGAMING & LEISURE PPTYS INC	10,100	$429K	0.64%	Put
4147	JOEST JOE CO	10,000	$429K	0.64%	Put
4148	DANDANA INC	17,600	$428K	0.63%	Call
4149	—NEW PROVIDENCE ACQUISITION	36,674	$428K	0.63%
4150	SUNSUNOCO LP/SUNOCO FIN CORP	13,400	$427K	0.63%	Call
4151	PBAPEMBINA PIPELINE CORP	14,800	$427K	0.63%	Put
4152	—LUMINEX CORP DEL	13,343	$426K	0.63%
4153	RBLXROBLOX CORP	6,535	$424K	0.63%
4154	TWTRADEWEB MKTS INC	5,729	$424K	0.63%
4155	OSWONESPAWORLD HOLDINGS LIMITED	39,800	$424K	0.63%	Put
4156	—JAMF HLDG CORP	12,000	$424K	0.63%	Put
4157	ADNTADIENT PLC	9,568	$423K	0.63%
4158	—VERSO CORP	28,900	$422K	0.63%	Call
4159	—DIGITAL ALLY INC	258,800	$422K	0.63%	Call
4160	NATNORDIC AMERICAN TANKERS LIMI	129,709	$422K	0.63%
4161	—GREAT PANTHER MNG LTD	547,100	$421K	0.62%	Call
4162	NTAPNETAPP INC	5,800	$421K	0.62%	Call
4163	QTWOQ2 HLDGS INC	4,200	$421K	0.62%	Put
4164	—PERDOCEO ED CORP	35,100	$420K	0.62%	Call
4165	SUPVGRUPO SUPERVIELLE S.A.	242,600	$420K	0.62%	Call
4166	MBIMBIA INC	43,700	$420K	0.62%	Put
4167	WTIW & T OFFSHORE INC	116,895	$420K	0.62%
4168	CSVCARRIAGE SVCS INC	11,900	$419K	0.62%	Put
4169	PCARPACCAR INC	4,500	$418K	0.62%	Put
4170	ASCARDMORE SHIPPING CORP	92,000	$418K	0.62%	Put
4171	LOPEGRAND CANYON ED INC	3,900	$418K	0.62%	Call
4172	POWWAMMO INC	70,200	$416K	0.62%	Call
4173	GIBCGI INC	500	$416K	0.62%	Call
4174	—UNITED STS BRENT OIL FD LP	26,200	$416K	0.62%	Call
4175	—MAGENTA THERAPEUTICS INC	35,100	$416K	0.62%	Call
4176	GGBGERDAU SA	77,800	$415K	0.61%	Put
4177	I9DNARBUTUS BIOPHARMA CORP	124,589	$415K	0.61%
4178	MPXMARINE PRODS CORP	25,533	$415K	0.61%
4179	—ACORDA THERAPEUTICS INC	85,200	$415K	0.61%	Call
4180	CTXSEURCITRIX SYS INC	2,960	$415K	0.61%
4181	CBOECBOE GLOBAL MKTS INC	4,200	$415K	0.61%	Put
4182	PWRQUANTA SVCS INC	4,700	$414K	0.61%	Call
4183	PRGSPROGRESS SOFTWARE CORP	9,400	$414K	0.61%	Call
4184	ICEINTERCONTINENTAL EXCHANGE IN	3,700	$413K	0.61%	Put
4185	TPCTUTOR PERINI CORP	21,800	$413K	0.61%	Call
4186	—FAST ACQUISITION CORP	33,000	$413K	0.61%
4187	RPDRAPID7 INC	5,533	$413K	0.61%
4188	BB4AXOS FINANCIAL INC	8,770	$412K	0.61%
4189	—VANGUARD SPECIALIZED FUNDS	2,800	$412K	0.61%	Call
4190	—ENVESTNET INC	5,700	$412K	0.61%	Call
4191	EGHT8X8 INC NEW	12,700	$412K	0.61%	Put
4192	EXCEXELON CORP	9,400	$411K	0.61%	Put
4193	—COMPANHIA SIDERURGICA NACION	61,300	$411K	0.61%	Call
4194	ELFE L F BEAUTY INC	15,300	$411K	0.61%	Call
4195	TEXTEREX CORP NEW	8,900	$410K	0.61%	Call
4196	—ZYMEWORKS INC	12,970	$410K	0.61%
4197	ATKRATKORE INC	5,700	$410K	0.61%	Call
4198	—DESPEGAR COM CORP	30,100	$410K	0.61%	Call
4199	—PROVENTION BIO INC	39,100	$410K	0.61%	Put
4200	NEWTHNEWTEK BUSINESS SVCS CORP	15,300	$409K	0.61%	Call

PreviousPage 42 of 76Next