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
4801	—REGULUS THERAPEUTICS INC	147,400	$230K	0.34%	Call
4802	—SPIRIT RLTY CAP INC NEW	5,400	$230K	0.34%	Call
4803	—CYRUSONE INC	3,400	$230K	0.34%	Put
4804	SNBRSLEEP NUMBER CORP	1,600	$230K	0.34%	Put
4805	HASIHANNON ARMSTRONG SUST INFR C	4,100	$230K	0.34%	Put
4806	RGNXREGENXBIO INC	6,700	$229K	0.34%	Put
4807	YEXTYEXT INC	15,813	$229K	0.34%
4808	MOGOCADMOGO INC	26,951	$229K	0.34%
4809	STOKSTOKE THERAPEUTICS INC	5,900	$229K	0.34%	Call
4810	—MGM GROWTH PPTYS LLC	7,000	$228K	0.34%
4811	EXTREXTREME NETWORKS INC	26,100	$228K	0.34%	Call
4812	ALGMALLEGRO MICROSYSTEMS INC	9,000	$228K	0.34%	Put
4813	—COMMERCIAL VEH GROUP INC	23,500	$227K	0.34%	Put
4814	MRNS*MARINUS PHARMACEUTICALS INC	14,691	$227K	0.34%
4815	HEIHEICO CORP NEW	1,800	$226K	0.33%	Call
4816	ALKSALKERMES PLC	12,100	$226K	0.33%	Call
4817	UAMYUNITED STATES ANTIMONY CORP	186,900	$226K	0.33%	Call
4818	ASCARDMORE SHIPPING CORP	49,593	$225K	0.33%
4819	TBPHTHERAVANCE BIOPHARMA INC	1,100	$225K	0.33%	Call
4820	—ATHENEX INC	52,100	$224K	0.33%	Put
4821	SRJSPARTANNASH CO	11,388	$224K	0.33%
4822	—DPCM CAP INC	22,700	$224K	0.33%	Put
4823	RKDAARCADIA BIOSCIENCES INC	81,400	$224K	0.33%	Call
4824	—UNITED STS COMMODITY INDEX F	9,100	$224K	0.33%	Call
4825	AAMIBRIGHTSPHERE INVT GROUP INC	10,945	$223K	0.33%
4826	—KINDRED BIOSCIENCES INC	44,900	$223K	0.33%	Call
4827	—PHYSICIANS RLTY TR	12,600	$223K	0.33%	Put
4828	XBITXBIOTECH INC	12,999	$223K	0.33%
4829	RLIRLI CORP	2,000	$223K	0.33%	Call
4830	DVAXDYNAVAX TECHNOLOGIES CORP	22,693	$223K	0.33%
4831	—SECUREWORKS CORP	16,700	$223K	0.33%	Put
4832	—AULT GLOBAL HOLDINGS INC	67,818	$223K	0.33%
4833	ENRENERGIZER HLDGS INC NEW	4,700	$223K	0.33%	Call
4834	—ADVERUM BIOTECHNOLOGIES INC	22,500	$222K	0.33%	Call
4835	TGTREDEGAR CORP	14,800	$222K	0.33%	Put
4836	HUNHUNTSMAN CORP	7,700	$222K	0.33%	Call
4837	—AXONICS MODULATION TECHNOLOG	3,700	$222K	0.33%	Call
4838	LANDGLADSTONE LD CORP	12,146	$222K	0.33%
4839	TGBTASEKO MINES LTD	128,200	$221K	0.33%	Call
4840	—VIVOPOWER INTERNATIONAL PLC	21,900	$221K	0.33%	Put
4841	LULUFAX HOLDING LTD	15,240	$221K	0.33%
4842	TTMCHFTATA MTRS LTD	10,609	$221K	0.33%
4843	—GASLOG LTD	38,287	$221K	0.33%
4844	—EASTMAN CHEM CO	2,000	$220K	0.33%	Call
4845	—TRAVEL PLUS LEISURE CO	3,600	$220K	0.33%	Call
4846	FTAIEURFORTRESS TRANS INFRST INVS L	7,818	$220K	0.33%
4847	TENTSAKOS ENERGY NAVIGATION LTD	23,200	$220K	0.33%	Call
4848	KIMKIMCO RLTY CORP	11,750	$220K	0.33%
4849	WBSWEBSTER FINL CORP CONN	400	$220K	0.33%	Call
4850	LNTHLANTHEUS HLDGS INC	10,300	$220K	0.33%	Call
4851	—EVOGENE LTD	43,700	$220K	0.33%	Call
4852	GMABGENMAB A/S	6,700	$220K	0.33%	Call
4853	VKTXVIKING THERAPEUTICS INC	34,600	$219K	0.32%	Put
4854	—U S GLOBAL INVS INC	31,400	$219K	0.32%	Put
4855	—PPD INC	5,800	$219K	0.32%	Put
4856	BRKRBRUKER CORP	3,400	$219K	0.32%	Put
4857	PODDINSULET CORP	838	$219K	0.32%
4858	—EROS STX GLOBAL CORPORATION	121,000	$219K	0.32%	Put
4859	—BROADMARK RLTY CAP INC	20,900	$219K	0.32%	Put
4860	RLMDRELMADA THERAPEUTICS INC	6,220	$219K	0.32%
4861	CAPRCAPRICOR THERAPEUTICS INC	46,900	$219K	0.32%	Call
4862	BANCBANC OF CALIFORNIA INC	12,100	$219K	0.32%	Put
4863	SSLSASOL LTD	15,100	$219K	0.32%	Call
4864	TTNPTITAN PHARMACEUTICALS INC DE	73,113	$218K	0.32%
4865	CTRNCITI TRENDS INC	2,600	$218K	0.32%	Put
4866	—KINIKSA PHARMACEUTICALS LTD	11,800	$218K	0.32%	Call
4867	—REMARK HLDGS INC	95,600	$218K	0.32%	Put
4868	APTALPHA PRO TECH LTD	22,200	$217K	0.32%	Call
4869	SAICSCIENCE APPLICATIONS INTL CO	2,600	$217K	0.32%	Put
4870	LQDALIQUIDIA CORPORATION	80,800	$217K	0.32%	Call
4871	FTSFORTIS INC	500	$217K	0.32%	Put
4872	KYNKAYNE ANDERSON ENERGY INFRST	30,300	$217K	0.32%
4873	SIEBSIEBERT FINL CORP	53,600	$217K	0.32%	Put
4874	RMBS*RAMBUS INC DEL	11,161	$217K	0.32%
4875	NXRTNEXPOINT RESIDENTIAL TR INC	4,700	$217K	0.32%	Call
4876	CRSCARPENTER TECHNOLOGY CORP	5,246	$216K	0.32%
4877	TRUTRANSUNION	2,388	$215K	0.32%
4878	OSURORASURE TECHNOLOGIES INC	18,400	$215K	0.32%	Call
4879	—COVANTA HLDG CORP	15,500	$215K	0.32%	Call
4880	GTXIEURONCTERNAL THERAPEUTICS INC	25,695	$214K	0.32%
4881	—LIVEXLIVE MEDIA INC	49,300	$214K	0.32%	Put
4882	—DIGINEX LIMITED	19,500	$214K	0.32%	Call
4883	SVMSILVERCORP METALS INC	43,500	$214K	0.32%	Call
4884	—RAVEN INDS INC	5,583	$214K	0.32%
4885	—TPG PACE TECH OPPORTUNITIES	21,500	$213K	0.32%	Call
4886	IMOIMPERIAL OIL LTD	8,800	$213K	0.32%	Call
4887	LPLALPL FINL HLDGS INC	1,500	$213K	0.32%	Call
4888	—BARNES & NOBLE ED INC	26,000	$212K	0.31%	Call
4889	—GALLAGHER ARTHUR J & CO	1,700	$212K	0.31%	Call
4890	—EVOKE PHARMA INC	115,700	$212K	0.31%	Call
4891	—HENRY JACK & ASSOC INC	1,400	$212K	0.31%	Call
4892	IQVIQVIA HLDGS INC	1,100	$212K	0.31%	Put
4893	CDPCORPORATE OFFICE PPTYS TR	8,000	$211K	0.31%
4894	6PMPARAMOUNT GROUP INC	20,800	$211K	0.31%
4895	—SCORE MEDIA & GAMING INC	7,850	$211K	0.31%
4896	—APTOSE BIOSCIENCES INC	35,200	$210K	0.31%	Put
4897	—FINSERV ACQUISITION CORP	16,000	$210K	0.31%	Put
4898	GERNGERON CORP	133,000	$210K	0.31%	Put
4899	VACMARRIOTT VACTINS WORLDWID CO	1,200	$209K	0.31%	Call
4900	—INVESCO ACTIVLY MANGD ETC FD	12,100	$209K	0.31%	Call

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