GROUP ONE TRADING LLC Q2 2021 Filing

Filed August 10, 2021

Portfolio Value

$82.9M

Holdings

8,103

Report Date

Q2 2021

Filing Type

13F-HR

All Holdings (8,103 positions)

#	Stock	Shares	Value	% Portfolio	Type
4101	NMRKNEWMARK GROUP INC	44,500	$534K	0.64%	Put
4102	VIRTVIRTU FINL INC	19,340	$534K	0.64%
4103	ATNMACTINIUM PHARMACEUTICALS INC	67,500	$534K	0.64%	Call
4104	PZZAPAPA JOHNS INTL INC	5,112	$534K	0.64%
4105	—COMMERCIAL VEH GROUP INC	50,100	$533K	0.64%	Call
4106	XPXP INC	12,244	$533K	0.64%
4107	—ORBCOMM INC	47,322	$532K	0.64%
4108	IDTIDT CORP	14,400	$532K	0.64%	Put
4109	INVZINNOVIZ TECHNOLOGIES LTD	50,300	$532K	0.64%	Put
4110	—PROQR THRAPEUTICS N V	79,000	$532K	0.64%	Call
4111	EAFGRAFTECH INTL LTD	45,700	$531K	0.64%	Call
4112	WFGWEST FRASER TIMBER CO LTD	7,400	$530K	0.64%	Put
4113	LASRNLIGHT INC	14,600	$530K	0.64%	Call
4114	ANABANAPTYSBIO INC	20,400	$529K	0.64%	Call
4115	TEXTEREX CORP NEW	11,100	$529K	0.64%	Call
4116	LEVILEVI STRAUSS & CO NEW	19,100	$529K	0.64%	Put
4117	NSUSDNUSTAR ENERGY LP	29,078	$525K	0.63%
4118	—AVEO PHARMACEUTICALS INC	79,600	$525K	0.63%	Put
4119	—CONTANGO OIL & GAS CO	121,200	$524K	0.63%	Put
4120	HTHTHUAZHU GROUP LTD	9,900	$523K	0.63%	Call
4121	MDXGMIMEDX GROUP INC	41,798	$523K	0.63%
4122	—VERSO CORP	29,500	$522K	0.63%	Call
4123	HRTXHERON THERAPEUTICS INC	33,600	$521K	0.63%	Put
4124	ARLOARLO TECHNOLOGIES INC	77,000	$521K	0.63%	Call
4125	—CANO HEALTH INC	43,000	$520K	0.63%	Put
4126	BSMBLACK STONE MINERALS L P	48,400	$520K	0.63%	Put
4127	BRSPBRIGHTSPIRE CAPITAL INC	55,200	$519K	0.63%	Call
4128	—BROOKDALE SR LIVING INC	65,700	$519K	0.63%	Put
4129	DINDINE BRANDS GLOBAL INC	5,800	$518K	0.62%	Call
4130	EYPTEYEPOINT PHARMACEUTICALS INC	57,653	$518K	0.62%
4131	—LANNET INC	111,000	$518K	0.62%	Put
4132	—MODINE MFG CO	31,200	$518K	0.62%	Put
4133	—EXONE CO	23,900	$517K	0.62%
4134	—SYROS PHARMACEUTICALS INC	94,800	$517K	0.62%	Put
4135	HB6HIBBETT INC	5,768	$517K	0.62%
4136	USACUSA COMPRESSION PARTNERS LP	31,348	$517K	0.62%
4137	XNETXUNLEI LTD	112,664	$514K	0.62%
4138	—CLOOPEN GROUP HOLDING LIMITE	60,600	$514K	0.62%	Call
4139	BHRBRAEMAR HOTELS & RESORTS INC	82,600	$513K	0.62%	Put
4140	—DADA NEXUS LTD	17,700	$513K	0.62%	Put
4141	—MESOBLAST LTD	68,500	$512K	0.62%	Call
4142	MYOVMYOVANT SCIENCES LTD	22,481	$512K	0.62%
4143	ICADUSDICAD INC	29,542	$511K	0.62%
4144	TEFOFTELEFONICA S A	108,400	$509K	0.61%	Call
4145	FTFTFUTURE FINTECH GROUP INC	161,600	$509K	0.61%	Call
4146	—APOLLO COML REAL EST FIN INC	31,900	$509K	0.61%	Put
4147	CQPCHENIERE ENERGY PARTNERS LP	11,500	$509K	0.61%	Call
4148	—SEELOS THERAPEUTICS INC	192,900	$509K	0.61%	Call
4149	EXREXTRA SPACE STORAGE INC	3,100	$508K	0.61%	Call
4150	—APTOSE BIOSCIENCES INC	152,861	$508K	0.61%
4151	ESTAESTABLISHMENT LABS HLDGS INC	5,800	$507K	0.61%	Call
4152	—ATLAS CORP	35,600	$507K	0.61%	Put
4153	BECNUSDBEACON ROOFING SUPPLY INC	9,518	$507K	0.61%
4154	—ZYNERBA PHARMACEUTICALS INC	95,800	$507K	0.61%	Put
4155	HIIHUNTINGTON INGALLS INDS INC	2,400	$506K	0.61%	Call
4156	DBAINVESCO DB US DLR INDEX TR	24,000	$506K	0.61%	Call
4157	—SCHNITZER STEEL INDS INC	10,300	$505K	0.61%	Put
4158	SSS1EURLIFE STORAGE INC	4,703	$505K	0.61%
4159	SGMOSANGAMO THERAPEUTICS INC	42,000	$503K	0.61%	Put
4160	—RPT REALTY	38,700	$502K	0.61%	Call
4161	SMSISMITH MICRO SOFTWARE INC	96,095	$502K	0.61%
4162	NVMINOVA MEASURING INSTRUMENTS L	4,868	$501K	0.60%
4163	OTLYOATLY GROUP AB	20,500	$501K	0.60%	Call
4164	PBFPBF ENERGY INC	32,700	$500K	0.60%	Put
4165	EIXEDISON INTL	8,648	$500K	0.60%
4166	PRAAPRA GROUP INC	13,000	$500K	0.60%	Put
4167	—PIERIS PHARMACEUTICALS INC	130,400	$499K	0.60%	Put
4168	KTKT CORP	35,800	$499K	0.60%	Put
4169	AKBAAKEBIA THERAPEUTICS INC	131,400	$498K	0.60%	Put
4170	FMCFMC CORP	4,600	$498K	0.60%	Put
4171	LPGDORIAN LPG LTD	35,300	$498K	0.60%	Call
4172	—BETTER WORLD ACQUISITION COR	49,700	$497K	0.60%	Call
4173	—PHILLIPS 66 PARTNERS LP	12,600	$497K	0.60%	Call
4174	—CHIMERA INVT CORP	33,000	$497K	0.60%	Call
4175	FATEFATE THERAPEUTICS INC	5,700	$495K	0.60%	Put
4176	MLKNMILLER HERMAN INC	10,500	$495K	0.60%	Call
4177	CRCCANADIAN NAT RES LTD	13,645	$495K	0.60%
4178	—SECUREWORKS CORP	26,700	$495K	0.60%	Call
4179	—AKERNA CORP	122,700	$494K	0.60%	Put
4180	—VIRNETX HLDG CORP	115,100	$491K	0.59%	Call
4181	AGQPROSHARES TR II	17,510	$490K	0.59%
4182	JAMFJAMF HLDG CORP	14,572	$489K	0.59%
4183	MNROMONRO INC	7,700	$489K	0.59%	Call
4184	—INSTALLED BLDG PRODS INC	4,000	$489K	0.59%	Call
4185	—PATTERSON COS INC	16,100	$489K	0.59%	Call
4186	MSBMESABI TR	13,747	$487K	0.59%
4187	—PHYSICIANS RLTY TR	26,300	$486K	0.59%	Call
4188	—NIELSEN HLDGS PLC	19,700	$486K	0.59%	Put
4189	—BLUCORA INC	28,000	$485K	0.59%	Call
4190	INGING GROEP N.V.	36,600	$485K	0.59%	Call
4191	XNETXUNLEI LTD	106,100	$484K	0.58%	Call
4192	GCOGENESCO INC	7,600	$484K	0.58%	Call
4193	VIAVVIAVI SOLUTIONS INC	27,400	$484K	0.58%	Call
4194	NVDANVIDIA CORPORATION	604,500	$484K	0.58%	Put
4195	YUMYUM BRANDS INC	4,200	$483K	0.58%	Put
4196	WCCWESCO INTL INC	4,700	$483K	0.58%	Put
4197	—CAI INTERNATIONAL INC	8,600	$482K	0.58%	Call
4198	—JAGUAR HEALTH INC	304,900	$482K	0.58%	Call
4199	ITCIEURINTRA-CELLULAR THERAPIES INC	11,794	$481K	0.58%
4200	—MSG NETWORK INC	33,000	$481K	0.58%	Put

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