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
6101	—CYCLERION THERAPEUTICS INC	1,148	$4K	0.01%
6102	UDRUDR INC	100	$4K	0.01%	Call
6103	—GENETIC TECHNOLOGIES LTD	1,000	$4K	0.01%	Call
6104	—ARCH RESOURCES INC	100	$4K	0.01%	Put
6105	—CELESTICA INC	500	$4K	0.01%	Call
6106	FLSFLOWSERVE CORP	100	$4K	0.01%	Call
6107	SNDRSCHNEIDER NATIONAL INC	200	$4K	0.01%	Call
6108	DNOWNOW INC	500	$4K	0.01%	Put
6109	KLICKULICKE & SOFFA INDS INC	140	$4K	0.01%
6110	POSTPOST HLDGS INC	37	$4K	0.01%
6111	—EMPIRE ST RLTY TR INC	400	$4K	0.01%	Put
6112	—SURGALIGN HOLDINGS INC	2,000	$4K	0.01%	Put
6113	UMHUMH PPTYS INC	300	$4K	0.01%
6114	COHUCOHU INC	100	$4K	0.01%	Put
6115	AVNTAVIENT CORPORATION	100	$4K	0.01%	Call
6116	—1LIFE HEALTHCARE INC	100	$4K	0.01%	Put
6117	—GLOBAL MED REIT INC	300	$4K	0.01%	Call
6118	NVRIHARSCO CORP	217	$4K	0.01%
6119	GAINGLADSTONE INVT CORP	400	$4K	0.01%
6120	—INTEC PHARMA LTD JERUSALEM	1,300	$4K	0.01%	Call
6121	RDVTRED VIOLET INC	145	$4K	0.01%
6122	—NYMOX PHARMACEUTICAL CORP	1,500	$4K	0.01%	Put
6123	—JUPAI HLDGS LTD	2,378	$4K	0.01%
6124	—INVESTORS BANCORP INC NEW	400	$4K	0.01%	Call
6125	—EMAGIN CORP	2,600	$4K	0.01%	Put
6126	—CLEARSIDE BIOMEDICAL INC	1,600	$4K	0.01%	Call
6127	INGNINOGEN INC	100	$4K	0.01%
6128	PLYAPLAYA HOTELS & RESORTS NV	600	$4K	0.01%
6129	—ARLINGTON ASSET INVST CORP	1,100	$4K	0.01%	Call
6130	TMQTRILOGY METALS INC NEW	1,900	$4K	0.01%
6131	AIRAAR CORP	100	$4K	0.01%	Put
6132	—MOBILE TELESYSTEMS PJSC	500	$4K	0.01%	Put
6133	AVTAVNET INC	100	$4K	0.01%	Call
6134	—ACCELERATE DIAGNOSTICS INC	500	$4K	0.01%	Put
6135	NINEQNINE ENERGY SERVICE INC	1,424	$4K	0.01%
6136	—NAVIOS MARITIME ACQUIS CORP	1,297	$4K	0.01%
6137	BVNCOMPANIA DE MINAS BUENAVENTU	300	$4K	0.01%
6138	FPIFARMLAND PARTNERS INC	500	$4K	0.01%	Call
6139	TDGTRANSDIGM GROUP INC	5,600	$3K	0.01%	Put
6140	35VVEON LTD	1,987	$3K	0.01%
6141	BSBRBANCO SANTANDER BRASIL S A	300	$3K	0.01%	Call
6142	—OBSEVA SA	1,500	$3K	0.01%	Put
6143	TEXTEREX CORP NEW	100	$3K	0.01%	Put
6144	ADUNITED STATES CELLULAR CORP	100	$3K	0.01%	Call
6145	OXSQOXFORD SQUARE CAP CORP	1,000	$3K	0.01%	Put
6146	—OBSEVA SA	1,336	$3K	0.01%
6147	OECORION ENGINEERED CARBONS S A	200	$3K	0.01%	Put
6148	NGMUSDNGM BIOPHARMACEUTICALS INC	100	$3K	0.01%
6149	—NEW MTN FIN CORP	300	$3K	0.01%	Call
6150	QUIKQUICKLOGIC CORP	800	$3K	0.01%	Put
6151	—PRIMO WATER CORPORATION	200	$3K	0.01%	Put
6152	—NEW MTN FIN CORP	300	$3K	0.01%	Put
6153	—DATTO HLDG CORP	100	$3K	0.01%	Put
6154	DAOYOUDAO INC	100	$3K	0.01%	Put
6155	—CHIASMA INC	600	$3K	0.01%	Put
6156	—FLUENT INC	500	$3K	0.01%	Call
6157	NSSCNAPCO SEC TECHNOLOGIES INC	100	$3K	0.01%
6158	HTHHILLTOP HOLDINGS INC	100	$3K	0.01%	Put
6159	—UNITY BIOTECHNOLOGY INC	500	$3K	0.01%	Put
6160	SGRYSURGERY PARTNERS INC	100	$3K	0.01%	Call
6161	—9 METERS BIOPHARMA INC	3,300	$3K	0.01%	Put
6162	TTNPTITAN PHARMACEUTICALS INC DE	806	$3K	0.01%
6163	HDSNHUDSON TECHNOLOGIES INC	3,154	$3K	0.01%
6164	—AVID TECHNOLOGY INC	200	$3K	0.01%	Put
6165	SANWS&W SEED CO	1,000	$3K	0.01%
6166	ADUNITED STATES CELLULAR CORP	100	$3K	0.01%	Put
6167	—NAVIOS MARITIME ACQUIS CORP	1,000	$3K	0.01%	Call
6168	SIISPROTT INC	100	$3K	0.01%
6169	FSSFEDERAL SIGNAL CORP	100	$3K	0.01%	Put
6170	—FERRO CORP	200	$3K	0.01%	Put
6171	OIIOCEANEERING INTL INC	398	$3K	0.01%
6172	—UMH PPTYS INC	200	$3K	0.01%	Put
6173	—FORTERRA INC	200	$3K	0.01%	Call
6174	—ACORDA THERAPEUTICS INC	4,700	$3K	0.01%	Put
6175	CUBECUBESMART	100	$3K	0.01%	Call
6176	VIAVVIAVI SOLUTIONS INC	200	$3K	0.01%	Put
6177	INNSUMMIT HOTEL PPTYS INC	300	$3K	0.01%	Put
6178	SPNEUSDSEASPINE HLDGS CORP	149	$3K	0.01%
6179	—KRATON CORPORATION	100	$3K	0.01%	Put
6180	—LA JOLLA PHARMACEUTICAL CO	800	$3K	0.01%	Call
6181	—INTEC PHARMA LTD JERUSALEM	961	$3K	0.01%
6182	TVTXTRAVERE THERAPEUTICS INC	100	$3K	0.01%	Put
6183	—LANDMARK INFRASTRCTUR PARTR	300	$3K	0.01%	Call
6184	CNETZW DATA ACTION TECHNOLOGS IN	1,900	$3K	0.01%	Call
6185	GOSSGOSSAMER BIO INC	300	$3K	0.01%	Call
6186	SSBUSDSOUTH ST CORP	46	$3K	0.01%
6187	—CONSOL ENERGY INC DISC COML	400	$3K	0.01%	Call
6188	—DEL TACO RESTAURANTS INC NEW	300	$3K	0.01%	Put
6189	—PACWEST BANCORP DEL	100	$3K	0.01%	Put
6190	RYNRAYONIER INC	100	$3K	0.01%	Put
6191	—EDGEWELL PERS CARE CO	100	$3K	0.01%	Put
6192	FCPTFOUR CORNERS PPTY TR INC	100	$3K	0.01%	Call
6193	NVSTENVISTA HOLDINGS CORPORATION	100	$3K	0.01%	Put
6194	—PLAYA HOTELS & RESORTS NV	500	$3K	0.01%	Call
6195	SVASINOVAC BIOTECH LTD	412	$3K	0.01%
6196	—GASLOG PARTNERS LP	1,200	$3K	0.01%	Put
6197	—PENN VA CORP	300	$3K	0.01%	Put
6198	SIVRABERDEEN STD SILVER ETF TR	100	$3K	0.01%	Put
6199	ONBPPOLD NATL BANCORP IND	200	$3K	0.01%	Call
6200	MGTXMEIRAGTX HLDGS PLC	200	$3K	0.01%	Call

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