GROUP ONE TRADING LLC Q1 2018 Filing

Filed May 11, 2018

Portfolio Value

$10.5M

Holdings

4,806

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (4,806 positions)

#	Stock	Shares	Value	% Portfolio	Type
2001	—DUNKIN BRANDS GROUP INC	9,400	$561K	5.32%	Put
2002	—AIMMUNE THERAPEUTICS INC	17,612	$561K	5.32%
2003	EBIXEUREBIX INC	7,526	$561K	5.32%
2004	VRAVERA BRADLEY INC	52,800	$560K	5.32%	Call
2005	—IHS MARKIT LTD	11,600	$560K	5.32%	Call
2006	RYAMRAYONIER ADVANCED MATLS INC	26,000	$558K	5.30%	Put
2007	PBYIPUMA BIOTECHNOLOGY INC	8,200	$558K	5.30%	Call
2008	—WENDYS CO	31,800	$558K	5.30%	Put
2009	—MARVELL TECHNOLOGY GROUP LTD	26,500	$557K	5.29%	Call
2010	—JUMEI INTL HLDG LTD	191,573	$556K	5.28%
2011	—INTREXON CORP	36,300	$556K	5.28%	Put
2012	ERIIENERGY RECOVERY INC	67,569	$555K	5.27%
2013	BIPBROOKFIELD INFRAST PARTNERS	13,300	$554K	5.26%	Put
2014	HDHOME DEPOT INC	3,100	$553K	5.25%	Put
2015	AVPUSDAVON PRODS INC	194,850	$553K	5.25%
2016	—ATLANTIC PWR CORP	263,100	$553K	5.25%	Put
2017	FTNTFORTINET INC	10,300	$552K	5.24%	Put
2018	RDFNREDFIN CORP	24,135	$551K	5.23%
2019	LNGCHENIERE ENERGY INC	10,300	$551K	5.23%	Put
2020	—TRIVAGO N V	79,100	$550K	5.22%	Call
2021	—AMAG PHARMACEUTICALS INC	27,300	$550K	5.22%	Put
2022	—STARWOOD PPTY TR INC	26,200	$549K	5.21%	Call
2023	—PULTE GROUP INC	18,600	$549K	5.21%	Call
2024	—UNIVAR INC	19,700	$547K	5.19%	Call
2025	OASEUROASIS PETE INC NEW	67,576	$547K	5.19%
2026	ORCLORACLE CORP	11,942	$546K	5.18%
2027	—THERAPEUTICSMD INC	112,098	$546K	5.18%
2028	—TIVO CORP	40,200	$545K	5.17%	Put
2029	—ARRIS INTL INC	20,500	$545K	5.17%	Call
2030	VNOVORNADO RLTY TR	8,100	$545K	5.17%	Call
2031	—HOSPITALITY PPTYS TR	21,500	$545K	5.17%	Put
2032	—APTIV PLC	6,400	$544K	5.16%	Call
2033	GALTGALECTIN THERAPEUTICS INC	114,700	$544K	5.16%	Call
2034	—SOTHEBYS	10,600	$544K	5.16%	Call
2035	—TRIUMPH GROUP INC NEW	21,600	$544K	5.16%	Put
2036	ANAUTONATION INC	11,600	$543K	5.15%	Put
2037	—FRANKS INTL N V	1,000	$543K	5.15%	Call
2038	—LAREDO PETROLEUM INC	62,300	$543K	5.15%	Call
2039	VEEVVEEVA SYS INC	7,412	$541K	5.14%
2040	—PATTERN ENERGY GROUP INC	31,300	$541K	5.14%	Call
2041	—CIMPRESS N V	3,500	$541K	5.14%	Put
2042	PRAAPRA GROUP INC	14,200	$540K	5.13%	Put
2043	—KIRKLAND LAKE GOLD LTD	34,900	$540K	5.13%	Call
2044	—TRITON INTL LTD	17,600	$539K	5.12%	Call
2045	SSYSSTRATASYS LTD	26,669	$538K	5.11%
2046	—TEEKAY LNG PARTNERS L P	30,000	$537K	5.10%	Put
2047	—AMERICAN AXLE & MFG HLDGS IN	35,300	$537K	5.10%	Call
2048	PENNPENN NATL GAMING INC	20,400	$536K	5.09%	Call
2049	SUPNSUPERNUS PHARMACEUTICALS INC	11,700	$536K	5.09%	Put
2050	—ETFIS SER TR I	78,300	$536K	5.09%	Put
2051	LULULULULEMON ATHLETICA INC	6,000	$535K	5.08%	Call
2052	ABALLIANCEBERNSTEIN HOLDING LP	19,900	$534K	5.07%	Put
2053	HLHECLA MNG CO	145,282	$533K	5.06%
2054	WTWISDOMTREE INVTS INC	58,100	$533K	5.06%	Call
2055	IBNICICI BK LTD	60,100	$532K	5.05%	Call
2056	TXTTEXTRON INC	9,000	$531K	5.04%	Put
2057	—RSP PERMIAN INC	11,300	$530K	5.03%	Call
2058	—NEVRO CORP	6,100	$529K	5.02%	Put
2059	LGIHLGI HOMES INC	7,500	$529K	5.02%	Put
2060	NGGNATIONAL GRID PLC	9,350	$528K	5.01%
2061	—MICRO FOCUS INTERNATIONAL PL	37,500	$527K	5.00%	Call
2062	WBAWALGREENS BOOTS ALLIANCE INC	8,040	$526K	4.99%
2063	EOGEOG RES INC	5,000	$526K	4.99%	Call
2064	SHAKSHAKE SHACK INC	12,600	$525K	4.98%	Put
2065	—CLOUDERA INC	24,300	$524K	4.97%	Call
2066	—GW PHARMACEUTICALS PLC	4,638	$523K	4.96%
2067	TDOCTELADOC INC	12,967	$523K	4.96%
2068	PIIMPINJ INC	40,155	$523K	4.96%
2069	—CALLAWAY GOLF CO	31,900	$522K	4.95%	Put
2070	—EBIX INC	7,000	$522K	4.95%	Call
2071	—SINA CORP	5,000	$521K	4.95%	Call
2072	—CATALYST BIOSCIENCES INC	20,100	$519K	4.93%	Put
2073	—CALLON PETE CO DEL	39,200	$519K	4.93%	Put
2074	CTSHCOGNIZANT TECHNOLOGY SOLUTIO	6,424	$517K	4.91%
2075	EOGEOG RES INC	4,900	$516K	4.90%	Put
2076	—SPARTAN MTRS INC	300	$516K	4.90%	Call
2077	—WILDHORSE RESOURCE DEV CORP	26,968	$515K	4.89%
2078	ARWRARROWHEAD PHARMACEUTICALS IN	71,400	$515K	4.89%	Call
2079	—AMERICAN OUTDOOR BRANDS CORP	49,800	$514K	4.88%	Put
2080	—ATLAS AIR WORLDWIDE HLDGS IN	8,500	$514K	4.88%	Call
2081	—MEDICAL PPTYS TRUST INC	39,500	$514K	4.88%	Put
2082	NUENUCOR CORP	8,400	$513K	4.87%	Call
2083	R6C2ROYAL DUTCH SHELL PLC	7,828	$513K	4.87%
2084	—GRIDSUM HLDG INC	62,682	$512K	4.86%
2085	MCRIMONARCH CASINO & RESORT INC	12,100	$512K	4.86%	Call
2086	—VEREIT INC	73,400	$511K	4.85%	Put
2087	—ADAMAS PHARMACEUTICALS INC	21,396	$511K	4.85%
2088	—BLUEKNIGHT ENERGY PARTNERS L	1,200	$510K	4.84%	Put
2089	—ACXIOM CORP	22,400	$509K	4.83%	Call
2090	RRRRED ROCK RESORTS INC	17,400	$509K	4.83%	Call
2091	PENNPENN NATL GAMING INC	19,358	$508K	4.82%
2092	—ENDOLOGIX INC	1,200	$508K	4.82%	Put
2093	HCCWARRIOR MET COAL INC	18,096	$507K	4.81%
2094	—REMARK HLDGS INC	89,300	$507K	4.81%	Call
2095	—ENZO BIOCHEM INC	92,500	$507K	4.81%	Call
2096	GGBGERDAU S A	108,500	$506K	4.80%	Call
2097	LYGLLOYDS BANKING GROUP PLC	136,000	$506K	4.80%	Put
2098	—MCDERMOTT INTL INC	82,960	$505K	4.79%
2099	NSMNATIONSTAR MTG HLDGS INC	28,060	$504K	4.78%
2100	—SECOND SIGHT MED PRODS INC	262,500	$504K	4.78%	Call

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