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
1001	AXTAAXALTA COATING SYS LTD	14,600	$432K	0.64%	Put
1002	XYLXYLEM INC	4,100	$431K	0.64%	Call
1003	SLCAU S SILICA HLDGS INC	35,075	$431K	0.64%
1004	—LANNET INC	81,700	$431K	0.64%	Put
1005	—SHELL MIDSTREAM PARTNERS L P	32,200	$430K	0.64%	Call
1006	DBAINVESCO DB MULTI-SECTOR COMM	25,400	$430K	0.64%	Put
1007	CGCARLYLE GROUP INC	11,700	$430K	0.64%	Put
1008	JOEST JOE CO	10,000	$429K	0.64%	Put
1009	—COLFAX CORP	9,800	$429K	0.64%	Put
1010	GLPIGAMING & LEISURE PPTYS INC	10,100	$429K	0.64%	Put
1011	—SENSATA TECHNOLOGIES HLDG PL	7,400	$429K	0.64%	Call
1012	—NEW PROVIDENCE ACQUISITION	36,674	$428K	0.63%
1013	DANDANA INC	17,600	$428K	0.63%	Call
1014	PBAPEMBINA PIPELINE CORP	14,800	$427K	0.63%	Put
1015	SUNSUNOCO LP/SUNOCO FIN CORP	13,400	$427K	0.63%	Call
1016	—LUMINEX CORP DEL	13,343	$426K	0.63%
1017	OSWONESPAWORLD HOLDINGS LIMITED	39,800	$424K	0.63%	Put
1018	—JAMF HLDG CORP	12,000	$424K	0.63%	Put
1019	RBLXROBLOX CORP	6,535	$424K	0.63%
1020	TWTRADEWEB MKTS INC	5,729	$424K	0.63%
1021	AMDADVANCED MICRO DEVICES INC	5,396,200	$424K	0.63%	Put
1022	ADNTADIENT PLC	9,568	$423K	0.63%
1023	—DIGITAL ALLY INC	258,800	$422K	0.63%	Call
1024	—VERSO CORP	28,900	$422K	0.63%	Call
1025	NATNORDIC AMERICAN TANKERS LIMI	129,709	$422K	0.63%
1026	—GREAT PANTHER MNG LTD	547,100	$421K	0.62%	Call
1027	NTAPNETAPP INC	5,800	$421K	0.62%	Call
1028	QTWOQ2 HLDGS INC	4,200	$421K	0.62%	Put
1029	—PERDOCEO ED CORP	35,100	$420K	0.62%	Call
1030	WTIW & T OFFSHORE INC	116,895	$420K	0.62%
1031	SUPVGRUPO SUPERVIELLE S.A.	242,600	$420K	0.62%	Call
1032	MBIMBIA INC	43,700	$420K	0.62%	Put
1033	—CARRIAGE SVCS INC	11,900	$419K	0.62%	Put
1034	PCARPACCAR INC	4,500	$418K	0.62%	Put
1035	LOPEGRAND CANYON ED INC	3,900	$418K	0.62%	Call
1036	ASCARDMORE SHIPPING CORP	92,000	$418K	0.62%	Put
1037	POWWAMMO INC	70,200	$416K	0.62%	Call
1038	—MAGENTA THERAPEUTICS INC	35,100	$416K	0.62%	Call
1039	GIBCGI INC	500	$416K	0.62%	Call
1040	—UNITED STS BRENT OIL FD LP	26,200	$416K	0.62%	Call
1041	CTXSEURCITRIX SYS INC	2,960	$415K	0.61%
1042	MPXMARINE PRODS CORP	25,533	$415K	0.61%
1043	I9DNARBUTUS BIOPHARMA CORP	124,589	$415K	0.61%
1044	GGBGERDAU SA	77,800	$415K	0.61%	Put
1045	—ACORDA THERAPEUTICS INC	85,200	$415K	0.61%	Call
1046	CBOECBOE GLOBAL MKTS INC	4,200	$415K	0.61%	Put
1047	—QUANTA SVCS INC	4,700	$414K	0.61%	Call
1048	PRGSPROGRESS SOFTWARE CORP	9,400	$414K	0.61%	Call
1049	TPCTUTOR PERINI CORP	21,800	$413K	0.61%	Call
1050	—FAST ACQUISITION CORP	33,000	$413K	0.61%
1051	ICEINTERCONTINENTAL EXCHANGE IN	3,700	$413K	0.61%	Put
1052	RPDRAPID7 INC	5,533	$413K	0.61%
1053	—VANGUARD SPECIALIZED FUNDS	2,800	$412K	0.61%	Call
1054	—ENVESTNET INC	5,700	$412K	0.61%	Call
1055	BB4AXOS FINANCIAL INC	8,770	$412K	0.61%
1056	EGHT8X8 INC NEW	12,700	$412K	0.61%	Put
1057	ELFE L F BEAUTY INC	15,300	$411K	0.61%	Call
1058	—COMPANHIA SIDERURGICA NACION	61,300	$411K	0.61%	Call
1059	EXCEXELON CORP	9,400	$411K	0.61%	Put
1060	—DESPEGAR COM CORP	30,100	$410K	0.61%	Call
1061	—ZYMEWORKS INC	12,970	$410K	0.61%
1062	ATKRATKORE INC	5,700	$410K	0.61%	Call
1063	—PROVENTION BIO INC	39,100	$410K	0.61%	Put
1064	TEXTEREX CORP NEW	8,900	$410K	0.61%	Call
1065	NEWTHNEWTEK BUSINESS SVCS CORP	15,300	$409K	0.61%	Call
1066	AXUALEXCO RESOURCE CORP	162,612	$408K	0.60%
1067	EQIXEQUINIX INC	600	$408K	0.60%	Call
1068	—TRADEWEB MKTS INC	5,500	$407K	0.60%	Call
1069	ACRSACLARIS THERAPEUTICS INC	16,149	$407K	0.60%
1070	VCELVERICEL CORP	7,300	$406K	0.60%	Call
1071	TNDMTANDEM DIABETES CARE INC	4,600	$406K	0.60%	Put
1072	STRLSTERLING CONSTR INC	17,449	$405K	0.60%
1073	—CHICOS FAS INC	122,100	$404K	0.60%	Put
1074	OMFONEMAIN HLDGS INC	7,500	$403K	0.60%	Put
1075	ARESARES MANAGEMENT CORPORATION	7,200	$403K	0.60%	Call
1076	—FALCON CAPITAL ACQUISITN COR	40,399	$403K	0.60%
1077	VNTVONTIER CORPORATION	13,300	$403K	0.60%	Put
1078	CANETEUCRIUM COMMODITY TR	23,000	$403K	0.60%	Put
1079	—UNIVERSAL HLTH SVCS INC	3,000	$400K	0.59%	Put
1080	BLKBBLACKBAUD INC	5,627	$400K	0.59%
1081	—AEVA TECHNOLOGIES INC	34,400	$399K	0.59%	Put
1082	—TREVENA INC	222,700	$399K	0.59%	Put
1083	ALVAUTOLIV INC	4,300	$399K	0.59%	Put
1084	—LAKELAND INDS INC	14,300	$398K	0.59%	Put
1085	EBSEMERGENT BIOSOLUTIONS INC	4,268	$397K	0.59%
1086	—HERSHA HOSPITALITY TR	37,600	$397K	0.59%	Put
1087	—EPAM SYS INC	100	$397K	0.59%	Call
1088	CRBPCORBUS PHARMACEUTICALS HLDGS	201,100	$396K	0.59%	Call
1089	NTRANATERA INC	3,900	$396K	0.59%	Call
1090	PFGPRINCIPAL FINANCIAL GROUP IN	6,600	$396K	0.59%	Put
1091	CQPCHENIERE ENERGY PARTNERS LP	9,500	$395K	0.59%	Call
1092	—ZYMEWORKS INC	12,500	$395K	0.59%	Call
1093	MLKNMILLER HERMAN INC	9,600	$395K	0.59%	Put
1094	PPCPILGRIMS PRIDE CORP	16,574	$394K	0.58%
1095	—FLEXION THERAPEUTICS INC	44,000	$394K	0.58%	Call
1096	BANDBANDWIDTH INC	3,100	$393K	0.58%	Put
1097	ABGASBURY AUTOMOTIVE GROUP INC	200	$393K	0.58%	Put
1098	ABGASBURY AUTOMOTIVE GROUP INC	200	$393K	0.58%	Call
1099	PG4PRINCIPAL FINANCIAL GROUP IN	6,562	$393K	0.58%
1100	—HOMOLOGY MEDICINES INC	41,700	$392K	0.58%	Call

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