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
901	FTNTFORTINET INC	25,200	$2.1M	12.69%	Put
902	—INTEGRATED DEVICE TECHNOLOGY	43,200	$2.1M	12.69%	Call
903	DPZDOMINOS PIZZA INC	8,200	$2.1M	12.69%	Put
904	QUREUNIQURE NV	35,400	$2.1M	12.67%	Call
905	DDD3-D SYS CORP DEL	196,225	$2.1M	12.66%
906	—ROYAL BK SCOTLAND GROUP PLC	323,700	$2.1M	12.66%	Call
907	AMNAMN HEALTHCARE SERVICES INC	44,800	$2.1M	12.66%	Put
908	—WILLIAMS COS INC DEL	73,300	$2.1M	12.63%	Call
909	—MEI PHARMA INC	685,100	$2.1M	12.61%	Call
910	MOSMOSAIC CO NEW	76,900	$2.1M	12.60%	Put
911	—WORLD WRESTLING ENTMT INC	24,200	$2.1M	12.60%	Put
912	NRGNRG ENERGY INC	49,400	$2.1M	12.59%	Call
913	—CHINA BIOLOGIC PRODS HLDGS I	23,000	$2.1M	12.59%	Put
914	—HCP INC	67,000	$2.1M	12.58%	Put
915	CBCHUBB LIMITED	14,900	$2.1M	12.52%	Call
916	DHRDANAHER CORPORATION	15,800	$2.1M	12.51%	Call
917	—ARENA PHARMACEUTICALS INC	46,500	$2.1M	12.51%	Call
918	—TURNING PT BRANDS INC	45,100	$2.1M	12.47%	Call
919	—ATHENE HLDG LTD	50,700	$2.1M	12.41%	Call
920	MGMMGM RESORTS INTERNATIONAL	80,500	$2.1M	12.39%	Call
921	FOLDAMICUS THERAPEUTICS INC	151,900	$2.1M	12.39%	Call
922	—BRIGHTHOUSE FINL INC	56,900	$2.1M	12.39%	Put
923	TPRTAPESTRY INC	63,459	$2.1M	12.37%
924	—IAC INTERACTIVECORP	9,800	$2.1M	12.35%	Call
925	—MONOLITHIC PWR SYS INC	15,200	$2.1M	12.35%	Call
926	BNSBANK N S HALIFAX	38,600	$2.1M	12.34%	Call
927	—CITIZENS FINL GROUP INC	63,300	$2.1M	12.34%	Put
928	LNWOSCIENTIFIC GAMES CORP	100,666	$2.1M	12.33%
929	GTGOODYEAR TIRE & RUBR CO	113,200	$2.1M	12.33%	Call
930	CVECENOVUS ENERGY INC	236,800	$2.1M	12.33%	Put
931	FNDFLOOR & DECOR HLDGS INC	49,800	$2.1M	12.31%	Put
932	BAHBOOZ ALLEN HAMILTON HLDG COR	35,300	$2.1M	12.31%	Call
933	CHGGCHEGG INC	53,800	$2.1M	12.30%	Put
934	—FLEETCOR TECHNOLOGIES INC	8,300	$2.0M	12.28%	Put
935	—NOBLE MIDSTREAM PARTNERS LP	56,800	$2.0M	12.27%	Call
936	CHGGCHEGG INC	53,600	$2.0M	12.25%	Call
937	OMEROMEROS CORP	117,600	$2.0M	12.25%	Put
938	—DICKS SPORTING GOODS INC	55,500	$2.0M	12.25%	Call
939	—PROS HOLDINGS INC	48,200	$2.0M	12.21%	Call
940	WTWISDOMTREE INVTS INC	288,000	$2.0M	12.19%	Call
941	UBSUBS GROUP AG	167,706	$2.0M	12.18%
942	DBXDROPBOX INC	92,542	$2.0M	12.10%
943	USX1UNITED STATES STL CORP NEW	103,229	$2.0M	12.07%
944	—MACQUARIE INFRASTRUCTURE COR	48,800	$2.0M	12.07%	Call
945	BAHBOOZ ALLEN HAMILTON HLDG COR	34,600	$2.0M	12.07%	Put
946	LITELUMENTUM HLDGS INC	35,500	$2.0M	12.04%	Put
947	BUDANHEUSER BUSCH INBEV SA/NV	23,900	$2.0M	12.04%	Put
948	—ALTA MESA RES INC	5,800	$2.0M	12.00%
949	—MARATHON PATENT GROUP INC	4,700	$2.0M	12.00%	Put
950	ACADACADIA PHARMACEUTICALS INC	74,300	$2.0M	11.97%	Put
951	SLVISHARES SILVER TRUST	140,353	$2.0M	11.94%
952	—CREDIT ACCEP CORP MICH	4,400	$2.0M	11.92%	Put
953	—AGNC INVT CORP	110,200	$2.0M	11.90%	Call
954	VZVERIZON COMMUNICATIONS INC	33,400	$2.0M	11.85%	Call
955	CMCSACOMCAST CORP NEW	49,100	$2.0M	11.77%	Put
956	—ATLASSIAN CORP PLC	17,400	$2.0M	11.73%	Put
957	MATMATTEL INC	149,500	$1.9M	11.66%	Put
958	HALHALLIBURTON CO	66,338	$1.9M	11.66%
959	YYEURYY INC	23,124	$1.9M	11.65%
960	NEONEOGENOMICS INC	94,900	$1.9M	11.65%	Call
961	—MEDICAL PPTYS TRUST INC	104,700	$1.9M	11.62%	Call
962	DXCDXC TECHNOLOGY CO	30,100	$1.9M	11.61%	Call
963	POSTPOST HLDGS INC	17,700	$1.9M	11.61%	Call
964	GGALGRUPO FINANCIERO GALICIA S A	75,784	$1.9M	11.60%
965	WDCWESTERN DIGITAL CORP	40,181	$1.9M	11.58%
966	—GLU MOBILE INC	176,300	$1.9M	11.57%	Put
967	—APHRIA INC	206,900	$1.9M	11.56%	Call
968	SSYSSTRATASYS LTD	80,843	$1.9M	11.55%
969	—WRIGHT MED GROUP N V	61,200	$1.9M	11.55%	Call
970	DUKDUKE ENERGY CORP NEW	21,300	$1.9M	11.50%	Call
971	OZKBANK OZK	66,000	$1.9M	11.47%	Put
972	—BERRY GLOBAL GROUP INC	35,500	$1.9M	11.47%	Put
973	—VODAFONE GROUP PLC NEW	104,800	$1.9M	11.43%	Put
974	OMEROMEROS CORP	109,500	$1.9M	11.41%	Call
975	CVECENOVUS ENERGY INC	218,654	$1.9M	11.38%
976	—TELLURIAN INC NEW	169,400	$1.9M	11.38%	Call
977	SPGIS&P GLOBAL INC	9,000	$1.9M	11.37%	Call
978	—WPX ENERGY INC	144,000	$1.9M	11.32%	Put
979	—INVESTORS BANCORP INC NEW	159,200	$1.9M	11.32%	Put
980	TSNTYSON FOODS INC	27,168	$1.9M	11.31%
981	—FRONT YD RESIDENTIAL CORP	203,200	$1.9M	11.30%	Put
982	—TRAVELPORT WORLDWIDE LTD	119,700	$1.9M	11.29%	Call
983	UBNTEURUBIQUITI NETWORKS INC	12,569	$1.9M	11.29%
984	—SPROUTS FMRS MKT INC	87,200	$1.9M	11.26%	Put
985	—CLOVIS ONCOLOGY INC	75,600	$1.9M	11.25%	Put
986	VACMARRIOTT VACTINS WORLDWID CO	20,000	$1.9M	11.22%	Put
987	EGOELDORADO GOLD CORP NEW	403,700	$1.9M	11.21%	Put
988	—MICHAELS COS INC	163,400	$1.9M	11.19%	Call
989	—U S SILICA HLDGS INC	107,400	$1.9M	11.18%	Call
990	—HEALTH INS INNOVATIONS INC	69,500	$1.9M	11.18%	Put
991	AMWDAMERICAN WOODMARK CORPORATIO	22,500	$1.9M	11.15%	Call
992	—NEW AGE BEVERAGES CORP	352,900	$1.9M	11.13%	Call
993	TTETOTAL S A	33,300	$1.9M	11.11%	Call
994	NGLNGL ENERGY PARTNERS LP	132,000	$1.9M	11.11%	Put
995	XLNXEURXILINX INC	14,533	$1.8M	11.05%
996	—HANESBRANDS INC	103,000	$1.8M	11.05%	Call
997	FORMFORMFACTOR INC	114,500	$1.8M	11.05%	Call
998	WINGWINGSTOP INC	24,200	$1.8M	11.04%	Put
999	OLEDUNIVERSAL DISPLAY CORP	12,000	$1.8M	11.00%	Call
1000	INSMINSMED INC	62,600	$1.8M	10.92%	Call

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