GROUP ONE TRADING LLC Q4 2020 Filing

Filed February 10, 2021

Portfolio Value

$57.8M

Holdings

6,453

Report Date

Q4 2020

Filing Type

13F-HR

All Holdings (6,453 positions)

#	Stock	Shares	Value	% Portfolio	Type
4201	—CERIDIAN HCM HLDG INC	1,500	$160K	0.28%	Put
4202	LGIHLGI HOMES INC	1,500	$159K	0.28%	Put
4203	WYNNWYNN RESORTS LTD	1,411	$159K	0.28%
4204	MGAMAGNA INTL INC	2,250	$159K	0.28%
4205	—EXONE CO	16,800	$159K	0.28%	Call
4206	CDWCDW CORP	1,200	$158K	0.27%	Put
4207	—THERAPEUTICSMD INC	130,581	$158K	0.27%
4208	QLYSQUALYS INC	1,300	$158K	0.27%	Call
4209	COLDAMERICOLD RLTY TR	4,200	$157K	0.27%	Call
4210	GPGREENPOWER MTR CO INC	5,386	$157K	0.27%
4211	ASNDASCENDIS PHARMA A/S	941	$157K	0.27%
4212	AMNAMN HEALTHCARE SVCS INC	2,300	$157K	0.27%	Call
4213	—APARTMENT INVT & MGMT CO	29,600	$156K	0.27%	Call
4214	FBKFB FINL CORP	4,500	$156K	0.27%	Call
4215	—PAMPA ENERGIA S A	11,300	$156K	0.27%	Put
4216	MFAUSDMFA FINL INC	40,036	$156K	0.27%
4217	—ENVESTNET INC	1,900	$156K	0.27%	Put
4218	KOPNKOPIN CORP	64,100	$156K	0.27%	Call
4219	ACIUAC IMMUNE SA	30,000	$155K	0.27%	Call
4220	TKRTIMKEN CO	2,000	$155K	0.27%	Call
4221	—GLYCOMIMETICS INC	41,200	$155K	0.27%	Call
4222	—UNITY BIOTECHNOLOGY INC	29,600	$155K	0.27%	Call
4223	—AMERICAN EQTY INVT LIFE HLD	5,600	$155K	0.27%	Put
4224	LSAKNET 1 UEPS TECHNOLOGIES INC	31,500	$155K	0.27%	Call
4225	LELANDS END INC NEW	7,200	$155K	0.27%	Put
4226	—PETIQ INC	4,000	$154K	0.27%	Put
4227	—CHICOS FAS INC	96,800	$154K	0.27%	Put
4228	IPIINTREPID POTASH INC	6,373	$154K	0.27%
4229	OGSONE GAS INC	2,000	$154K	0.27%	Put
4230	—TRIUMPH GROUP INC NEW	12,300	$154K	0.27%	Call
4231	—ALLAKOS INC	1,100	$154K	0.27%	Put
4232	CUTREURCUTERA INC	6,331	$153K	0.26%
4233	NXSTNEXSTAR MEDIA GROUP INC	1,400	$153K	0.26%	Put
4234	FICOFAIR ISAAC CORP	300	$153K	0.26%	Put
4235	KLICKULICKE & SOFFA INDS INC	4,800	$153K	0.26%	Call
4236	HBMHUDBAY MINERALS INC	21,900	$153K	0.26%	Call
4237	EVEREVERQUOTE INC	4,106	$153K	0.26%
4238	DOXAMDOCS LTD	2,140	$152K	0.26%
4239	OVIDOVID THERAPEUTICS INC	65,635	$152K	0.26%
4240	NMIHNMI HLDGS INC	6,700	$152K	0.26%	Call
4241	RGSUSDREGIS CORP MINN	16,519	$152K	0.26%
4242	PCARPACCAR INC	1,760	$152K	0.26%
4243	—U S CONCRETE INC	3,800	$152K	0.26%	Put
4244	—SECUREWORKS CORP	10,700	$152K	0.26%	Call
4245	—COVANTA HLDG CORP	11,600	$152K	0.26%	Call
4246	PRSPPERSPECTA INC	6,321	$152K	0.26%
4247	SEESEALED AIR CORP NEW	3,300	$151K	0.26%	Put
4248	—SYROS PHARMACEUTICALS INC	13,900	$151K	0.26%	Call
4249	—CALUMET SPECIALTY PRODS PTNR	48,100	$151K	0.26%	Call
4250	TENTSAKOS ENERGY NAVIGATION LTD	18,800	$151K	0.26%	Put
4251	BLKBBLACKBAUD INC	2,600	$150K	0.26%
4252	—FBL FINL GROUP INC	2,851	$150K	0.26%
4253	RIGLUSDRIGEL PHARMACEUTICALS INC	42,842	$150K	0.26%
4254	GERNGERON CORP	93,800	$149K	0.26%	Put
4255	PRTAPROTHENA CORP PLC	12,446	$149K	0.26%
4256	SLDBSOLID BIOSCIENCES INC	19,700	$149K	0.26%
4257	SATSECHOSTAR CORP	7,027	$149K	0.26%
4258	GOGROCERY OUTLET HLDG CORP	3,800	$149K	0.26%	Call
4259	ESPRESPERION THERAPEUTICS INC NE	5,700	$148K	0.26%	Put
4260	MGRCMCGRATH RENTCORP	2,200	$148K	0.26%
4261	TCMDTACTILE SYS TECHNOLOGY INC	3,300	$148K	0.26%
4262	TCSUSDCONTAINER STORE GROUP INC	15,514	$148K	0.26%
4263	—TIVITY HEALTH INC	7,500	$147K	0.25%	Put
4264	—ORBITAL ENERGY GROUP INC	67,135	$147K	0.25%
4265	ERFGBPENERPLUS CORP	46,962	$147K	0.25%
4266	DIODDIODES INC	2,087	$147K	0.25%
4267	—MEDNAX INC	6,000	$147K	0.25%	Put
4268	SUNSUNOCO LP/SUNOCO FIN CORP	5,100	$147K	0.25%	Put
4269	STAGSTAG INDL INC	4,700	$147K	0.25%	Put
4270	ARGXARGENX SE	500	$147K	0.25%	Put
4271	DCPHEURDECIPHERA PHARMACEUTICALS IN	2,584	$147K	0.25%
4272	CHS1USDCHICOS FAS INC	92,102	$146K	0.25%
4273	—ACM RESEARCH INC	1,800	$146K	0.25%	Put
4274	LQDALIQUIDIA CORPORATION	49,000	$145K	0.25%	Call
4275	FXBINVESCO CURRENCYSHARES BRIT	1,100	$145K	0.25%	Call
4276	BRKDDIREXION SHS ETF TR	21,100	$145K	0.25%	Call
4277	APPFAPPFOLIO INC	800	$144K	0.25%	Call
4278	—BEST INC	70,660	$144K	0.25%
4279	—ANTARES PHARMA INC	36,157	$144K	0.25%
4280	AUBATLANTIC UN BANKSHARES CORP	4,340	$143K	0.25%
4281	HUBGHUB GROUP INC	2,500	$143K	0.25%	Put
4282	—UGI CORP NEW	4,100	$143K	0.25%	Put
4283	WVEWAVE LIFE SCIENCES LTD	18,200	$143K	0.25%	Put
4284	YSGYATSEN HLDG LTD	8,400	$143K	0.25%
4285	—AVADEL PHARMACEUTICALS PLC	21,400	$143K	0.25%	Put
4286	HBANHUNTINGTON BANCSHARES INC	11,319	$143K	0.25%
4287	FLWSFLWS/1-800 FLOWERS	5,500	$143K	0.25%	Call
4288	—HOLLY ENERGY PARTNERS L P	10,000	$142K	0.25%	Put
4289	DMLPDORCHESTER MINERALS LP	12,900	$141K	0.24%
4290	ANAUTONATION INC	2,021	$141K	0.24%
4291	EXKENDEAVOUR SILVER CORP	28,000	$141K	0.24%	Put
4292	AVDLAVADEL PHARMACEUTICALS PLC	21,113	$141K	0.24%
4293	ACRSACLARIS THERAPEUTICS INC	21,600	$140K	0.24%	Call
4294	ATENA10 NETWORKS INC	14,200	$140K	0.24%	Call
4295	CMRECOSTAMARE INC	16,900	$140K	0.24%	Call
4296	—DIREXION SHS ETF TR	20,443	$140K	0.24%
4297	—ENTERGY CORP NEW	1,400	$140K	0.24%	Put
4298	KYNKAYNE ANDERSON ENERGY INFRST	24,129	$139K	0.24%
4299	CTRNCITI TRENDS INC	2,791	$139K	0.24%
4300	WW6WW INTL INC	5,684	$139K	0.24%

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