GROUP ONE TRADING LLC Q4 2018 Filing

Filed February 6, 2019

Portfolio Value

$11.5M

Holdings

4,844

Report Date

Q4 2018

Filing Type

13F-HR

All Holdings (4,844 positions)

#	Stock	Shares	Value	% Portfolio	Type
1901	—BLACKSTONE MTG TR INC	19,300	$615K	5.33%	Put
1902	—NEW RELIC INC	7,600	$615K	5.33%	Call
1903	LEALEAR CORP	5,000	$614K	5.32%	Call
1904	—ZIOPHARM ONCOLOGY INC	328,300	$614K	5.32%	Put
1905	—ZENDESK INC	10,500	$613K	5.31%	Put
1906	—GOVERNMENT PPTYS INCOME TR	89,081	$612K	5.31%
1907	ADSKAUTODESK INC	4,754	$611K	5.30%
1908	YEXTYEXT INC	41,100	$610K	5.29%	Call
1909	—NABORS INDUSTRIES LTD	304,400	$609K	5.28%	Call
1910	—PANDORA MEDIA INC	75,200	$608K	5.27%	Put
1911	—HOLLYFRONTIER CORP	11,900	$608K	5.27%	Call
1912	—ESTERLINE TECHNOLOGIES CORP	5,000	$607K	5.26%	Call
1913	DQDAQO NEW ENERGY CORP	25,900	$606K	5.25%	Put
1914	RMDRESMED INC	5,300	$604K	5.24%	Call
1915	SLCAU S SILICA HLDGS INC	59,276	$603K	5.23%
1916	—CHIMERA INVT CORP	33,800	$602K	5.22%	Call
1917	TGTXTG THERAPEUTICS INC	146,034	$599K	5.19%
1918	—AMERICAN ELEC PWR INC	8,000	$598K	5.18%	Call
1919	MPCMARATHON PETE CORP	10,124	$597K	5.18%
1920	AMXAMERICA MOVIL SAB DE CV	41,800	$596K	5.17%	Put
1921	UNMUNUM GROUP	20,300	$596K	5.17%	Put
1922	KTOSKRATOS DEFENSE & SEC SOLUTIO	42,300	$596K	5.17%	Call
1923	JAZZJAZZ PHARMACEUTICALS PLC	4,800	$595K	5.16%	Put
1924	GTXGARRETT MOTION INC	48,200	$595K	5.16%	Put
1925	—FLEETCOR TECHNOLOGIES INC	3,200	$594K	5.15%	Put
1926	—SITE CENTERS CORP	53,600	$593K	5.14%	Call
1927	—PDC ENERGY INC	19,900	$592K	5.13%	Put
1928	WFRDWEATHERFORD INTL PLC	1,058,973	$592K	5.13%
1929	SPOTSPOTIFY TECHNOLOGY S A	5,212	$592K	5.13%
1930	AMBAAMBARELLA INC	16,936	$592K	5.13%
1931	GLPIGAMING & LEISURE PPTYS INC	18,300	$591K	5.12%	Call
1932	—VIRNETX HLDG CORP	245,958	$590K	5.11%
1933	—WILDHORSE RESOURCE DEV CORP	41,800	$590K	5.11%	Call
1934	KOSKOSMOS ENERGY LTD	144,500	$588K	5.10%	Put
1935	RRGBRED ROBIN GOURMET BURGERS IN	22,000	$588K	5.10%	Put
1936	SRGSERITAGE GROWTH PPTYS	18,200	$588K	5.10%	Call
1937	KMXCARMAX INC	9,300	$583K	5.05%	Call
1938	—CONTAINER STORE GROUP INC	122,200	$583K	5.05%	Put
1939	MBIMBIA INC	65,300	$582K	5.05%	Call
1940	UCTTULTRA CLEAN HLDGS INC	68,700	$582K	5.05%	Put
1941	NEMNEWMONT MINING CORP	16,788	$582K	5.05%
1942	OCOWENS CORNING NEW	13,200	$581K	5.04%	Call
1943	—SUNPOWER CORP	116,700	$580K	5.03%	Put
1944	SLBSCHLUMBERGER LTD	15,940	$575K	4.98%
1945	XINUSDXINYUAN REAL ESTATE CO LTD	151,406	$575K	4.98%
1946	—POLARITYTE INC	42,400	$572K	4.96%	Put
1947	MASMASCO CORP	19,557	$572K	4.96%
1948	—GARDNER DENVER HLDGS INC	27,900	$571K	4.95%	Put
1949	BKBANK NEW YORK MELLON CORP	12,100	$570K	4.94%	Call
1950	FIVNFIVE9 INC	12,964	$567K	4.92%
1951	PCARPACCAR INC	9,900	$566K	4.91%	Call
1952	PEOEXELON CORP	12,518	$565K	4.90%
1953	—PYXUS INTL INC	47,600	$565K	4.90%	Call
1954	—CHINA BIOLOGIC PRODS HLDGS I	7,400	$562K	4.87%	Put
1955	—GRUBHUB INC	7,300	$561K	4.86%	Call
1956	—MCEWEN MNG INC	308,300	$561K	4.86%	Put
1957	—BLUEPRINT MEDICINES CORP	10,400	$561K	4.86%	Put
1958	EDITEDITAS MEDICINE INC	24,500	$557K	4.83%	Put
1959	NKENIKE INC	7,500	$556K	4.82%	Call
1960	—U S G CORP	13,000	$555K	4.81%	Put
1961	GRA1EURGRACE W R & CO DEL NEW	8,552	$555K	4.81%
1962	ZNGAEURZYNGA INC	140,613	$553K	4.79%
1963	—MERITOR INC	32,700	$553K	4.79%	Call
1964	—ANADARKO PETE CORP	12,600	$552K	4.79%	Put
1965	FSLRFIRST SOLAR INC	13,000	$552K	4.79%	Call
1966	VMCVULCAN MATLS CO	5,578	$551K	4.78%
1967	STWDSTARWOOD PPTY TR INC	27,947	$551K	4.78%
1968	—ALTRA INDL MOTION CORP	21,900	$551K	4.78%	Call
1969	—TIVO CORP	58,500	$550K	4.77%	Call
1970	—SEASPAN CORP	70,100	$549K	4.76%	Put
1971	MBTGBPMOBILE TELESYSTEMS PJSC	78,289	$548K	4.75%
1972	VICRVICOR CORP	14,500	$548K	4.75%	Call
1973	YETIYETI HLDGS INC	36,877	$547K	4.74%
1974	SBHSALLY BEAUTY HLDGS INC	32,000	$546K	4.73%	Put
1975	—SCORPIO TANKERS INC	309,400	$545K	4.72%	Call
1976	—TRIVAGO N V	96,614	$544K	4.72%
1977	—TURQUOISE HILL RES LTD	329,600	$544K	4.72%	Put
1978	SUPNSUPERNUS PHARMACEUTICALS INC	16,357	$543K	4.71%
1979	NYCBEURNEW YORK CMNTY BANCORP INC	57,689	$543K	4.71%
1980	RGRSTURM RUGER & CO INC	10,200	$543K	4.71%	Call
1981	ECECOPETROL S A	34,056	$541K	4.69%
1982	KNDIKANDI TECHNOLOGIES GROUP INC	148,709	$540K	4.68%
1983	—THERAPEUTICSMD INC	141,634	$540K	4.68%
1984	WHWYNDHAM HOTELS & RESORTS INC	11,895	$540K	4.68%
1985	AM6AMICUS THERAPEUTICS INC	56,152	$538K	4.66%
1986	HUMHUMANA INC	1,875	$537K	4.66%
1987	MACMACERICH CO	12,342	$534K	4.63%
1988	—FRONTIER COMMUNICATIONS CORP	223,600	$532K	4.61%	Call
1989	CLWCLEARWATER PAPER CORP	21,800	$531K	4.60%	Put
1990	—HOSTESS BRANDS INC	48,400	$530K	4.59%	Call
1991	—CALUMET SPECIALTY PRODS PTNR	239,800	$530K	4.59%	Put
1992	TRTN-PATRITON INTL LTD	17,022	$529K	4.59%
1993	GOGOGOGO INC	176,500	$528K	4.58%	Put
1994	ADSKAUTODESK INC	4,100	$527K	4.57%	Call
1995	PLNTPLANET FITNESS INC	9,800	$525K	4.55%	Put
1996	—PURE STORAGE INC	32,600	$524K	4.54%	Call
1997	BIGGQBIG LOTS INC	18,088	$523K	4.53%
1998	—WORLD ACCEP CORP DEL	5,100	$522K	4.53%	Call
1999	—PRUDENTIAL FINL INC	6,400	$522K	4.53%	Put
2000	—CENTENNIAL RESOURCE DEV INC	47,300	$521K	4.52%	Call

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