GROUP ONE TRADING LLC Q1 2019 Filing

Filed May 13, 2019

Portfolio Value

$16.7M

Holdings

4,769

Report Date

Q1 2019

Filing Type

13F-HR

All Holdings (4,769 positions)

#	Stock	Shares	Value	% Portfolio	Type
1001	—PROTEOSTASIS THERAPEUTICS IN	228,200	$288K	1.73%	Put
1002	—TWO HBRS INVT CORP	21,200	$287K	1.72%	Put
1003	BTUPEABODY ENERGY CORP NEW	10,124	$287K	1.72%
1004	—GATES INDUSTRIAL CORPRATIN P	20,000	$287K	1.72%	Call
1005	QRVOQORVO INC	4,000	$287K	1.72%	Put
1006	ANIKANIKA THERAPEUTICS INC	9,495	$287K	1.72%
1007	—MAXWELL TECHNOLOGIES INC	64,300	$287K	1.72%	Call
1008	—MAXWELL TECHNOLOGIES INC	64,152	$287K	1.72%
1009	—NATUS MEDICAL INC DEL	11,300	$287K	1.72%	Put
1010	—GATES INDUSTRIAL CORPRATIN P	20,000	$287K	1.72%	Put
1011	KOPKOPPERS HOLDINGS INC	11,000	$286K	1.72%	Call
1012	PACBPACIFIC BIOSCIENCES CALIF IN	39,530	$286K	1.72%
1013	—ARMOUR RESIDENTIAL REIT INC	14,600	$285K	1.71%	Call
1014	FIVNFIVE9 INC	5,400	$285K	1.71%	Call
1015	TSTENARIS S A	10,100	$285K	1.71%	Put
1016	—SANDRIDGE PERMIAN TR	120,277	$285K	1.71%
1017	AMBAAMBARELLA INC	6,600	$285K	1.71%	Put
1018	MERCMERCER INTL INC	21,000	$284K	1.70%	Call
1019	—NEPTUNE WELLNESS SOLUTIONS I	89,100	$284K	1.70%	Put
1020	—LUMBER LIQUIDATORS HLDGS INC	28,096	$284K	1.70%
1021	—CARBON BLACK INC	20,300	$283K	1.70%	Call
1022	FDO.FMACYS INC	11,752	$282K	1.69%
1023	—SEADRILL LTD	33,900	$282K	1.69%	Put
1024	—PATTERN ENERGY GROUP INC	12,800	$282K	1.69%	Put
1025	VCELVERICEL CORP	16,100	$282K	1.69%	Call
1026	IMGNEURIMMUNOGEN INC	103,695	$281K	1.69%
1027	—ATLANTIC PWR CORP	111,600	$281K	1.69%	Put
1028	—MACOM TECH SOLUTIONS HLDGS I	16,800	$281K	1.69%	Put
1029	—HOLLYFRONTIER CORP	5,700	$281K	1.69%	Put
1030	HLFHERBALIFE NUTRITION LTD	5,280	$280K	1.68%
1031	IPINTL PAPER CO	6,039	$279K	1.67%
1032	ROLROLLINS INC	6,700	$279K	1.67%	Put
1033	VNET21VIANET GROUP INC	35,200	$279K	1.67%	Call
1034	LYGLLOYDS BANKING GROUP PLC	86,800	$279K	1.67%	Call
1035	AYAEURSTARS GROUP INC	15,869	$278K	1.67%
1036	CHTRCHARTER COMMUNICATIONS INC N	800	$278K	1.67%	Put
1037	AVXLANAVEX LIFE SCIENCES CORP	90,892	$277K	1.66%
1038	—MAKEMYTRIP LIMITED MAURITIUS	10,000	$276K	1.66%	Put
1039	SOHUSOHU COM LTD	16,649	$276K	1.66%
1040	VYXNCR CORP NEW	10,072	$275K	1.65%
1041	GLPGLOBAL PARTNERS LP	14,000	$275K	1.65%	Call
1042	MEDMEDIFAST INC	2,156	$275K	1.65%
1043	—RENEWABLE ENERGY GROUP INC	12,500	$275K	1.65%	Put
1044	ZM3ZUMIEZ INC	11,015	$274K	1.64%
1045	—FIREEYE INC	16,300	$274K	1.64%	Put
1046	—FARFETCH LTD	10,200	$274K	1.64%	Put
1047	SAJACOMPANHIA DE SANEAMENTO BASI	25,901	$274K	1.64%
1048	YEXTYEXT INC	12,500	$273K	1.64%	Put
1049	—PENNEY J C CORP INC	183,300	$273K	1.64%	Call
1050	4DHDANA INCORPORATED	15,373	$273K	1.64%
1051	—LANDSTAR SYS INC	2,500	$273K	1.64%	Call
1052	—GENOMIC HEALTH INC	3,900	$273K	1.64%	Put
1053	ELFE L F BEAUTY INC	25,800	$273K	1.64%	Put
1054	—TEXAS CAPITAL BANCSHARES INC	5,000	$273K	1.64%	Call
1055	—ENERGOUS CORP	42,900	$272K	1.63%	Put
1056	—O REILLY AUTOMOTIVE INC NEW	700	$272K	1.63%	Call
1057	GNLGLOBAL NET LEASE INC	14,400	$272K	1.63%	Call
1058	FLSFLOWSERVE CORP	6,000	$271K	1.63%	Call
1059	AYS1SANDSTORM GOLD LTD	49,382	$271K	1.63%
1060	GDDYGODADDY INC	3,600	$271K	1.63%	Call
1061	KOCOCA COLA FEMSA S A B DE C V	4,100	$271K	1.63%	Put
1062	—CHINA PETE & CHEM CORP	3,400	$270K	1.62%	Put
1063	PRGOPERRIGO CO PLC	5,600	$270K	1.62%	Put
1064	ALKSALKERMES PLC	7,400	$270K	1.62%	Call
1065	—58 COM INC	4,100	$269K	1.61%	Put
1066	—ABM INDS INC	7,400	$269K	1.61%	Put
1067	—EVERI HLDGS INC	25,600	$269K	1.61%	Put
1068	—ENABLE MIDSTREAM PARTNERS LP	18,700	$268K	1.61%	Put
1069	LYVLIVE NATION ENTERTAINMENT IN	4,200	$267K	1.60%	Call
1070	—OCWEN FINL CORP	146,873	$267K	1.60%
1071	PANWPALO ALTO NETWORKS INC	1,100	$267K	1.60%	Put
1072	—ZION OIL & GAS INC	353,300	$267K	1.60%	Call
1073	—COOPER TIRE & RUBR CO	8,900	$266K	1.60%	Call
1074	MTGMGIC INVT CORP WIS	20,116	$265K	1.59%
1075	—BOTTOMLINE TECH DEL INC	5,300	$265K	1.59%	Call
1076	LXLEXINFINTECH HLDGS LTD	25,200	$265K	1.59%	Call
1077	SIXEURSIX FLAGS ENTMT CORP NEW	5,361	$265K	1.59%
1078	—PROPETRO HLDG CORP	11,700	$264K	1.58%	Call
1079	ROFKFORCE INC	7,510	$264K	1.58%
1080	PHPARKER HANNIFIN CORP	1,541	$264K	1.58%
1081	KODKEASTMAN KODAK CO	88,900	$263K	1.58%	Call
1082	—STATE STR CORP	4,000	$263K	1.58%	Put
1083	—GSV CAP CORP	34,700	$263K	1.58%	Call
1084	MSCIMSCI INC	1,324	$263K	1.58%
1085	SOHUSOHU COM LTD	15,800	$262K	1.57%	Call
1086	TBPHTHERAVANCE BIOPHARMA INC	11,577	$262K	1.57%
1087	—SINCLAIR BROADCAST GROUP INC	6,800	$262K	1.57%	Call
1088	—HIBBETT SPORTS INC	11,500	$262K	1.57%	Call
1089	WTTRSELECT ENERGY SVCS INC	21,700	$261K	1.57%	Put
1090	—AMERICAN WTR WKS CO INC NEW	2,500	$261K	1.57%	Call
1091	FHBFIRST HAWAIIAN INC	10,000	$261K	1.57%	Call
1092	—CONNS INC	11,400	$261K	1.57%	Call
1093	ARESARES MANAGEMENT CORPORATION	11,200	$260K	1.56%	Put
1094	MXMAGNACHIP SEMICONDUCTOR CORP	35,200	$260K	1.56%	Call
1095	CLFDCLEARFIELD INC	17,700	$260K	1.56%	Call
1096	CAKECHEESECAKE FACTORY INC	5,309	$260K	1.56%
1097	—AETERNA ZENTARIS INC	56,000	$260K	1.56%	Call
1098	ALTALTIMMUNE INC	89,400	$259K	1.55%	Call
1099	—DIPLOMAT PHARMACY INC	44,481	$258K	1.55%
1100	NUSNU SKIN ENTERPRISES INC	5,400	$258K	1.55%	Call

PreviousPage 11 of 48Next