GROUP ONE TRADING LLC Q2 2019 Filing

Filed August 9, 2019

Portfolio Value

$11.1M

Holdings

4,933

Report Date

Q2 2019

Filing Type

13F-HR

All Holdings (4,933 positions)

#	Stock	Shares	Value	% Portfolio	Type
2101	BYDBOYD GAMING CORP	19,800	$533K	4.82%	Put
2102	AVXLANAVEX LIFE SCIENCES CORP	158,100	$533K	4.82%	Put
2103	—EPIZYME INC	42,500	$533K	4.82%	Put
2104	NVAXNOVAVAX INC	90,700	$532K	4.81%	Put
2105	MFINMEDALLION FINL CORP	78,900	$532K	4.81%	Call
2106	—INSEEGO CORP	110,900	$531K	4.81%	Call
2107	ROLROLLINS INC	14,800	$531K	4.81%	Call
2108	COSTCOSTCO WHSL CORP NEW	2,000	$529K	4.79%	Put
2109	USFDUS FOODS HLDG CORP	14,800	$529K	4.79%	Call
2110	HLTHILTON WORLDWIDE HLDGS INC	5,400	$528K	4.78%	Put
2111	—MACQUARIE INFRASTRUCTURE COR	13,000	$527K	4.77%	Put
2112	IOVAIOVANCE BIOTHERAPEUTICS INC	21,500	$527K	4.77%	Call
2113	—FS KKR CAPITAL CORP	88,000	$524K	4.74%	Put
2114	HAINHAIN CELESTIAL GROUP INC	23,900	$523K	4.73%	Call
2115	—GLADSTONE CAPITAL CORP	55,800	$523K	4.73%	Call
2116	GLNGGOLAR LNG LTD BERMUDA	28,200	$521K	4.71%	Put
2117	CPE3EURCALLON PETE CO DEL	78,922	$520K	4.71%
2118	—ARISTA NETWORKS INC	2,000	$519K	4.70%	Put
2119	DQDAQO NEW ENERGY CORP	12,220	$518K	4.69%
2120	—HORIZON THERAPEUTICS PUB LTD	21,500	$517K	4.68%	Put
2121	DVNDEVON ENERGY CORP NEW	18,100	$516K	4.67%	Put
2122	PGPROCTER AND GAMBLE CO	4,700	$515K	4.66%	Call
2123	—CONTROL4 CORP	21,700	$515K	4.66%	Call
2124	HALOHALOZYME THERAPEUTICS INC	29,900	$514K	4.65%	Put
2125	AAOIAPPLIED OPTOELECTRONICS INC	49,900	$513K	4.64%	Put
2126	—GLU MOBILE INC	71,300	$512K	4.63%	Call
2127	—U S CONCRETE INC	10,300	$512K	4.63%	Call
2128	KNKNOWLES CORP	27,900	$511K	4.62%	Call
2129	—ETFIS SER TR I	91,500	$510K	4.62%	Call
2130	—CANNTRUST HLDGS INC	101,300	$509K	4.61%	Put
2131	MOSMOSAIC CO NEW	20,340	$509K	4.61%
2132	—TATA MTRS LTD	43,400	$507K	4.59%	Call
2133	CVECENOVUS ENERGY INC	57,526	$507K	4.59%
2134	PBFPBF ENERGY INC	16,200	$507K	4.59%	Put
2135	SEICSEI INVESTMENTS CO	9,000	$505K	4.57%	Put
2136	LKNCYLUCKIN COFFEE INC	25,930	$505K	4.57%
2137	—ACTIVISION BLIZZARD INC	10,700	$505K	4.57%	Call
2138	2JEFOCUS FINL PARTNERS INC	18,499	$505K	4.57%
2139	PTENPATTERSON UTI ENERGY INC	43,800	$504K	4.56%	Put
2140	LYVLIVE NATION ENTERTAINMENT IN	7,600	$504K	4.56%	Put
2141	—MARINUS PHARMACEUTICALS INC	121,389	$504K	4.56%
2142	—SECUREWORKS CORP	37,900	$504K	4.56%	Call
2143	HBC2HSBC HLDGS PLC	12,076	$504K	4.56%
2144	RITMNEW RESIDENTIAL INVT CORP	32,700	$503K	4.55%	Put
2145	LEGLEGGETT & PLATT INC	13,100	$503K	4.55%	Put
2146	OMEROMEROS CORP	32,083	$503K	4.55%
2147	—MEI PHARMA INC	200,500	$501K	4.53%	Call
2148	GTNGRAY TELEVISION INC	30,500	$500K	4.52%	Call
2149	—HIBBETT SPORTS INC	27,400	$499K	4.52%	Put
2150	—BBVA BANCO FRANCES S A	44,100	$499K	4.52%	Put
2151	KTOSKRATOS DEFENSE & SEC SOLUTIO	21,800	$499K	4.52%	Put
2152	VCVISTEON CORP	8,500	$498K	4.51%	Put
2153	—NEOPHOTONICS CORP	119,189	$498K	4.51%
2154	SRGSERITAGE GROWTH PPTYS	11,600	$498K	4.51%	Put
2155	—CALLON PETE CO DEL	75,500	$498K	4.51%	Put
2156	CHWYCHEWY INC	14,200	$497K	4.50%	Call
2157	DOMODOMO INC	18,182	$497K	4.50%
2158	ATIALLEGHENY TECHNOLOGIES INC	19,700	$496K	4.49%	Put
2159	ADUNITED STATES CELLULAR CORP	11,098	$496K	4.49%
2160	MMLPMARTIN MIDSTREAM PRTNRS L P	69,500	$496K	4.49%	Put
2161	JNPJUNIPER NETWORKS INC	18,595	$495K	4.48%
2162	PENNPENN NATL GAMING INC	25,700	$495K	4.48%	Call
2163	RMBS*RAMBUS INC DEL	41,082	$495K	4.48%
2164	—TRANSENTERIX INC	363,000	$494K	4.47%	Put
2165	DXCMDEXCOM INC	3,300	$494K	4.47%	Call
2166	—RADIUS HEALTH INC	20,295	$494K	4.47%
2167	AYS1SANDSTORM GOLD LTD	88,905	$493K	4.46%
2168	NVDANVIDIA CORP	3,000	$493K	4.46%	Call
2169	—AGENUS INC	164,300	$493K	4.46%	Put
2170	—RETROPHIN INC	24,487	$492K	4.45%
2171	—LIBERTY MEDIA CORP DELAWARE	13,000	$492K	4.45%	Put
2172	MRNAMODERNA INC	33,589	$492K	4.45%
2173	—HAWAIIAN HOLDINGS INC	17,900	$491K	4.44%	Put
2174	LEGLEGGETT & PLATT INC	12,800	$491K	4.44%	Call
2175	PBFPBF ENERGY INC	15,671	$491K	4.44%
2176	CCXIEURCHEMOCENTRYX INC	52,644	$490K	4.43%
2177	—DIAMOND OFFSHORE DRILLING IN	55,100	$489K	4.43%	Put
2178	CDNSCADENCE DESIGN SYSTEM INC	6,900	$489K	4.43%	Call
2179	NKENIKE INC	5,800	$487K	4.41%	Call
2180	—TIFFANY & CO NEW	5,200	$487K	4.41%	Put
2181	AMBAAMBARELLA INC	11,027	$487K	4.41%
2182	VNET21VIANET GROUP INC	62,477	$487K	4.41%
2183	—FIDUS INVT CORP	30,500	$486K	4.40%	Call
2184	MSGNMSG NETWORK INC	23,413	$486K	4.40%
2185	BOOTBOOT BARN HLDGS INC	13,630	$486K	4.40%
2186	EDUNEW ORIENTAL ED & TECH GRP I	5,031	$486K	4.40%
2187	HOGHARLEY DAVIDSON INC	13,518	$484K	4.38%
2188	—VERINT SYS INC	9,000	$484K	4.38%	Put
2189	—MICRO FOCUS INTERNATIONAL PL	18,400	$482K	4.36%	Put
2190	OCULOCULAR THERAPEUTIX INC	109,600	$482K	4.36%	Call
2191	—STORE CAP CORP	14,500	$481K	4.35%	Call
2192	OASEUROASIS PETE INC NEW	84,436	$480K	4.34%
2193	THFFFIRST FINL BANCORP OH	19,800	$480K	4.34%	Put
2194	PBYIPUMA BIOTECHNOLOGY INC	37,800	$480K	4.34%	Call
2195	LEVILEVI STRAUSS & CO NEW	23,000	$480K	4.34%	Put
2196	WLKWESTLAKE CHEM CORP	6,900	$479K	4.33%	Put
2197	DQDAQO NEW ENERGY CORP	11,300	$479K	4.33%	Put
2198	SLDBSOLID BIOSCIENCES INC	83,262	$479K	4.33%
2199	—DUNKIN BRANDS GROUP INC	6,000	$478K	4.33%	Put
2200	—LIBERTY EXPEDIA HLDGS INC	10,000	$478K	4.33%	Call

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