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
1901	SEESEALED AIR CORP NEW	14,825	$634K	6.02%
1902	FIVNFIVE9 INC	21,200	$632K	6.00%	Call
1903	—INTREXON CORP	41,204	$632K	6.00%
1904	—SANDRIDGE PERMIAN TR	332,400	$632K	6.00%	Put
1905	PRTAPROTHENA CORP PLC	17,159	$630K	5.98%
1906	—SERVICE CORP INTL	16,700	$630K	5.98%	Put
1907	—MEET GROUP INC	301,141	$629K	5.97%
1908	MDXGMIMEDX GROUP INC	90,188	$629K	5.97%
1909	—FLEETCOR TECHNOLOGIES INC	3,100	$628K	5.96%	Put
1910	—GLOBUS MED INC	12,600	$628K	5.96%	Put
1911	FVICHFFORTUNA SILVER MINES INC	119,929	$625K	5.93%
1912	TRUTRANSUNION	11,000	$625K	5.93%	Call
1913	NENOBLE CORP PLC	168,115	$624K	5.92%
1914	KIMKIMCO RLTY CORP	43,300	$624K	5.92%	Call
1915	ABTABBOTT LABS	10,400	$623K	5.91%	Call
1916	XXII22ND CENTY GROUP INC	265,055	$623K	5.91%
1917	—KANDI TECHNOLOGIES GROUP INC	128,500	$623K	5.91%	Call
1918	—COEUR MNG INC	77,700	$622K	5.90%	Put
1919	URIUNITED RENTALS INC	3,600	$622K	5.90%	Call
1920	NGNOVAGOLD RES INC	143,117	$620K	5.88%
1921	—ABB LTD	26,100	$620K	5.88%	Put
1922	SKTTANGER FACTORY OUTLET CTRS I	28,200	$620K	5.88%	Call
1923	YRDYIRENDAI LTD	15,400	$620K	5.88%	Put
1924	TOLTOLL BROTHERS INC	14,300	$618K	5.87%	Put
1925	—AMERICAN OUTDOOR BRANDS CORP	59,800	$617K	5.86%	Call
1926	ALLALLSTATE CORP	6,500	$616K	5.85%	Call
1927	WNCWABASH NATL CORP	29,600	$616K	5.85%	Call
1928	CVNACARVANA CO	26,800	$615K	5.84%	Put
1929	RUNSUNRUN INC	68,900	$615K	5.84%	Put
1930	—ACCELERATE DIAGNOSTICS INC	26,887	$614K	5.83%
1931	—SORL AUTO PTS INC	94,100	$613K	5.82%	Call
1932	ENTGENTEGRIS INC	17,600	$612K	5.81%	Call
1933	—DDR CORP	83,500	$612K	5.81%	Call
1934	NXSTNEXSTAR MEDIA GROUP INC	9,200	$612K	5.81%	Put
1935	—DCP MIDSTREAM LP	17,400	$611K	5.80%	Call
1936	WLKWESTLAKE CHEM CORP	5,500	$611K	5.80%	Call
1937	MASMASCO CORP	15,085	$610K	5.79%
1938	—ORBITAL ATK INC	4,600	$610K	5.79%	Call
1939	CZFSCITIZENS FINL GROUP INC	14,500	$609K	5.78%	Put
1940	—PANDORA MEDIA INC	121,100	$609K	5.78%	Call
1941	CYTKCYTOKINETICS INC	84,500	$608K	5.77%	Put
1942	—ZENDESK INC	12,700	$608K	5.77%	Call
1943	NGNOVAGOLD RES INC	140,100	$607K	5.76%	Call
1944	—RENREN INC	72,300	$607K	5.76%	Put
1945	NATNORDIC AMERICAN TANKERS LIMI	311,514	$604K	5.73%
1946	CWHCAMPING WORLD HLDGS INC	18,696	$603K	5.72%
1947	—MAXIM INTEGRATED PRODS INC	10,000	$602K	5.71%	Put
1948	CAGCONAGRA BRANDS INC	16,300	$601K	5.70%	Put
1949	—VIRNETX HLDG CORP	152,035	$601K	5.70%
1950	—ATLANTICA YIELD PLC	30,700	$601K	5.70%	Call
1951	—ARROW ELECTRS INC	7,800	$601K	5.70%	Call
1952	BWPBOARDWALK PIPELINE PARTNERS	59,239	$601K	5.70%
1953	HN9HANESBRANDS INC	32,567	$600K	5.70%
1954	MATMATTEL INC	45,562	$599K	5.69%
1955	FNVFRANCO NEVADA CORP	8,750	$598K	5.68%
1956	—SPROUTS FMRS MKT INC	25,500	$598K	5.68%	Put
1957	SFIXSTITCH FIX INC	29,400	$596K	5.66%	Call
1958	AAGILENT TECHNOLOGIES INC	8,900	$595K	5.65%	Call
1959	—NATIONSTAR MTG HLDGS INC	33,100	$594K	5.64%	Call
1960	—II VI INC	14,500	$593K	5.63%	Put
1961	NHTCNATURAL HEALTH TRENDS CORP	31,200	$593K	5.63%	Call
1962	SNYSANOFI	14,800	$593K	5.63%	Put
1963	—SPECTRUM BRANDS HLDGS INC	5,700	$591K	5.61%	Call
1964	ASMBASSEMBLY BIOSCIENCES INC	11,939	$587K	5.57%
1965	SEESEALED AIR CORP NEW	13,700	$586K	5.56%	Call
1966	—PARSLEY ENERGY INC	20,200	$586K	5.56%	Put
1967	PCRXPACIRA PHARMACEUTICALS INC	18,800	$586K	5.56%	Call
1968	QIWQIWI PLC	30,627	$585K	5.55%
1969	—AIR TRANSPORT SERVICES GRP I	25,100	$585K	5.55%	Put
1970	—ENSCO PLC	133,000	$584K	5.54%	Call
1971	—WESTERN UN CO	30,300	$583K	5.53%	Put
1972	—MAZOR ROBOTICS LTD	9,500	$583K	5.53%	Call
1973	NLYANNALY CAP MGMT INC	55,800	$582K	5.52%	Call
1974	—JUMEI INTL HLDG LTD	200,800	$582K	5.52%	Call
1975	—WELLCARE HEALTH PLANS INC	3,000	$581K	5.51%	Put
1976	—MAZOR ROBOTICS LTD	9,448	$580K	5.51%
1977	—CERNER CORP	10,000	$580K	5.51%	Put
1978	MDTMEDTRONIC PLC	7,200	$578K	5.49%	Put
1979	—OASIS PETE INC NEW	71,200	$577K	5.48%	Call
1980	PXGBXPRAXAIR INC	3,997	$577K	5.48%
1981	SEASEABRIDGE GOLD INC	53,300	$576K	5.47%
1982	MYGNMYRIAD GENETICS INC	19,475	$575K	5.46%
1983	—AEROJET ROCKETDYNE HLDGS INC	20,500	$573K	5.44%	Put
1984	ANABANAPTYSBIO INC	5,500	$572K	5.43%	Call
1985	—SANCHEZ ENERGY CORP	182,400	$571K	5.42%	Put
1986	ACTGACACIA RESH CORP	163,250	$571K	5.42%
1987	—DENBURY RES INC	207,900	$570K	5.41%	Call
1988	—TRIUMPH GROUP INC NEW	22,600	$570K	5.41%	Call
1989	VCELVERICEL CORP	57,200	$569K	5.40%	Put
1990	NSUSDNUSTAR ENERGY LP	27,856	$568K	5.39%
1991	AMNAMN HEALTHCARE SERVICES INC	100	$568K	5.39%	Put
1992	SBRASABRA HEALTH CARE REIT INC	32,200	$568K	5.39%	Call
1993	—TCF FINL CORP	24,800	$566K	5.37%	Call
1994	—CENTENE CORP DEL	5,300	$566K	5.37%	Call
1995	PSXPHILLIPS 66	5,900	$566K	5.37%	Call
1996	WWAYFAIR INC	8,350	$564K	5.35%
1997	WALWESTERN ALLIANCE BANCORP	9,700	$564K	5.35%	Call
1998	MITKMITEK SYS INC	76,090	$563K	5.34%
1999	JACKJACK IN THE BOX INC	6,600	$563K	5.34%	Call
2000	—BLUE APRON HLDGS INC	281,163	$562K	5.33%

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