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
1701	FIVNFIVE9 INC	18,400	$804K	6.97%	Call
1702	FLOFLOWERS FOODS INC	43,400	$802K	6.95%	Call
1703	TSNTYSON FOODS INC	15,000	$801K	6.94%	Put
1704	ESNTESSENT GROUP LTD	23,400	$800K	6.93%	Call
1705	4DHDANA INCORPORATED	58,608	$799K	6.93%
1706	RYNRAYONIER INC	28,800	$797K	6.91%	Put
1707	—WYNDHAM DESTINATIONS INC	22,200	$796K	6.90%	Put
1708	EWEDWARDS LIFESCIENCES CORP	5,200	$796K	6.90%	Put
1709	CLVSEURCLOVIS ONCOLOGY INC	44,285	$795K	6.89%
1710	MIKUSDMICHAELS COS INC	58,699	$795K	6.89%
1711	—EAGLE PHARMACEUTICALS INC	19,700	$794K	6.88%	Put
1712	—CONSOLIDATED COMM HLDGS INC	80,300	$793K	6.87%	Call
1713	NKENIKE INC	10,700	$793K	6.87%	Put
1714	CERSCERUS CORP	156,400	$793K	6.87%	Put
1715	OASEUROASIS PETE INC NEW	143,273	$792K	6.87%
1716	—PATTERN ENERGY GROUP INC	42,500	$791K	6.86%	Put
1717	RRRRED ROCK RESORTS INC	38,900	$790K	6.85%	Put
1718	—SCIENTIFIC GAMES CORP	44,100	$789K	6.84%	Put
1719	VYXNCR CORP NEW	34,200	$789K	6.84%	Call
1720	—BP PRUDHOE BAY RTY TR	36,400	$788K	6.83%	Put
1721	—ASSERTIO THERAPEUTICS INC	218,400	$788K	6.83%	Call
1722	—TAILORED BRANDS INC	57,800	$788K	6.83%	Call
1723	FLSFLOWSERVE CORP	20,700	$787K	6.82%	Call
1724	—GRUBHUB INC	10,200	$783K	6.79%	Put
1725	TNDMTANDEM DIABETES CARE INC	20,600	$782K	6.78%	Put
1726	SG7SAGE THERAPEUTICS INC	8,166	$782K	6.78%
1727	—MAXWELL TECHNOLOGIES INC	377,059	$781K	6.77%
1728	DHTDHT HOLDINGS INC	198,500	$778K	6.74%	Call
1729	BTUPEABODY ENERGY CORP NEW	25,500	$777K	6.74%	Put
1730	—ACELRX PHARMACEUTICALS INC	336,000	$776K	6.73%	Put
1731	—RENEWABLE ENERGY GROUP INC	30,100	$774K	6.71%	Call
1732	PAGPENSKE AUTOMOTIVE GRP INC	19,200	$774K	6.71%	Call
1733	9990302DAPACHE CORP	29,440	$773K	6.70%
1734	THRMGENTHERM INC	19,300	$772K	6.69%	Call
1735	—CARA THERAPEUTICS INC	59,300	$771K	6.68%	Put
1736	AMTTD AMERITRADE HLDG CORP	15,708	$769K	6.67%
1737	AMCAMC ENTMT HLDGS INC	62,500	$768K	6.66%
1738	—ACORDA THERAPEUTICS INC	49,200	$767K	6.65%	Call
1739	COPCONOCOPHI LLIPS	12,300	$767K	6.65%	Put
1740	ATRCATRICURE INC	25,000	$765K	6.63%	Call
1741	PVACUSDPENN VA CORP NEW	14,152	$765K	6.63%
1742	—DUNKIN BRANDS GROUP INC	11,900	$763K	6.61%	Put
1743	NVAXNOVAVAX INC	414,024	$762K	6.61%
1744	HRLHORMEL FOODS CORP	17,800	$760K	6.59%	Put
1745	—WESTERN ASSET MTG CAP CORP	91,000	$759K	6.58%	Call
1746	—WORLDPAY INC	9,900	$757K	6.56%	Put
1747	KODKEASTMAN KODAK CO	296,859	$757K	6.56%
1748	—U S CONCRETE INC	21,400	$755K	6.54%	Call
1749	PDFSPDF SOLUTIONS INC	89,400	$754K	6.54%	Put
1750	MLCOMELCO RESORT ENTERTAINMENT L	42,600	$751K	6.51%	Call
1751	NATNORDIC AMERICAN TANKERS LIMI	373,377	$747K	6.48%
1752	OSISOSI SYSTEMS INC	10,146	$744K	6.45%
1753	LYVLIVE NATION ENTERTAINMENT IN	15,100	$744K	6.45%	Call
1754	—CVR REFNG LP	71,100	$742K	6.43%	Call
1755	UPLDUPLAND SOFTWARE INC	27,256	$741K	6.42%
1756	PEGPUBLIC SVC ENTERPRISE GROUP	14,227	$741K	6.42%
1757	SONOSONOS INC	75,400	$740K	6.41%	Put
1758	—JUNIPER NETWORKS INC	27,500	$740K	6.41%	Call
1759	—AERIE PHARMACEUTICALS INC	20,500	$740K	6.41%	Call
1760	IRDMIRIDIUM COMMUNICATIONS INC	40,100	$740K	6.41%	Call
1761	JBGSJBG SMITH PPTYS	21,200	$738K	6.40%	Put
1762	IRDMIRIDIUM COMMUNICATIONS INC	40,000	$738K	6.40%	Put
1763	RUNSUNRUN INC	67,500	$735K	6.37%	Put
1764	SWN1EURSOUTHWESTERN ENERGY CO	215,548	$735K	6.37%
1765	—CONNS INC	38,900	$734K	6.36%	Put
1766	—OASIS PETE INC NEW	132,600	$733K	6.35%	Put
1767	—TEEKAY OFFSHORE PARTNERS L P	605,800	$733K	6.35%	Put
1768	—DSW INC	29,600	$731K	6.34%	Put
1769	—CF INDS HLDGS INC	16,800	$731K	6.34%	Put
1770	—GOVERNMENT PPTYS INCOME TR	106,400	$731K	6.34%	Call
1771	—CARRIZO OIL & GAS INC	64,500	$728K	6.31%	Call
1772	—INTERSECT ENT INC	25,748	$726K	6.29%
1773	—AKCEA THERAPEUTICS INC	24,100	$726K	6.29%	Call
1774	—HAWAIIAN HOLDINGS INC	27,500	$726K	6.29%	Call
1775	—ZIOPHARM ONCOLOGY INC	386,700	$723K	6.27%	Call
1776	PBFPBF ENERGY INC	22,100	$722K	6.26%	Put
1777	SUSUNCOR ENERGY INC NEW	25,808	$722K	6.26%
1778	—CLOUDERA INC	65,200	$721K	6.25%	Put
1779	—OCWEN FINL CORP	538,100	$721K	6.25%	Put
1780	—SPIRIT AEROSYSTEMS HLDGS INC	10,000	$721K	6.25%	Call
1781	NENOBLE CORP PLC	275,133	$721K	6.25%
1782	CALXCALIX INC	73,900	$721K	6.25%	Call
1783	RRRRED ROCK RESORTS INC	35,457	$720K	6.24%
1784	—IRON MTN INC NEW	22,200	$720K	6.24%	Put
1785	TGTXTG THERAPEUTICS INC	175,300	$719K	6.23%	Put
1786	—LENDINGCLUB CORP	272,400	$716K	6.21%	Put
1787	TELTE CONNECTIVITY LTD	9,442	$714K	6.19%
1788	ERICERICSSON	80,543	$714K	6.19%
1789	—ICAHN ENTERPRISES LP	12,500	$714K	6.19%	Put
1790	FNDFLOOR & DECOR HLDGS INC	27,500	$712K	6.17%	Call
1791	—GW PHARMACEUTICALS PLC	7,300	$711K	6.16%	Put
1792	PAAPLAINS ALL AMERN PIPELINE L	35,500	$711K	6.16%	Put
1793	—CANADIAN PAC RY LTD	4,000	$710K	6.15%	Put
1794	—BB&T CORP	16,400	$710K	6.15%	Put
1795	USFDUS FOODS HLDG CORP	22,400	$709K	6.15%	Put
1796	—VIRTU FINL INC	27,500	$708K	6.14%	Call
1797	WTWEURWEIGHT WATCHERS INTL INC NEW	18,335	$707K	6.13%
1798	DVAXDYNAVAX TECHNOLOGIES CORP	77,252	$707K	6.13%
1799	GGBGERDAU S A	187,637	$706K	6.12%
1800	—GOVERNMENT PPTYS INCOME TR	102,600	$705K	6.11%	Put

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