GROUP ONE TRADING LLC Q2 2018 Filing

Filed August 14, 2018

Portfolio Value

$11.7M

Holdings

5,072

Report Date

Q2 2018

Filing Type

13F-HR

All Holdings (5,072 positions)

#	Stock	Shares	Value	% Portfolio	Type
4201	NSPINSPERITY INC	332	$32K	0.27%
4202	—NEVSUN RES LTD	9,346	$32K	0.27%
4203	—ENZO BIOCHEM INC	6,200	$32K	0.27%	Put
4204	—MAG SILVER CORP	3,000	$32K	0.27%	Put
4205	WLKWESTLAKE CHEM CORP	300	$32K	0.27%	Call
4206	—AVID TECHNOLOGY INC	6,100	$32K	0.27%	Put
4207	EVREVERCORE INC	300	$32K	0.27%	Call
4208	GNRCGENERAC HLDGS INC	600	$31K	0.27%	Call
4209	CLLSCELLECTIS S A	1,100	$31K	0.27%	Call
4210	—SUMMIT MIDSTREAM PARTNERS LP	2,000	$31K	0.27%	Call
4211	—CELESTICA INC	2,600	$31K	0.27%	Call
4212	—ZAFGEN INC	3,002	$31K	0.27%
4213	—CIMAREX ENERGY CO	300	$31K	0.27%	Put
4214	—ENDOLOGIX INC	5,400	$31K	0.27%	Call
4215	EZPWEZCORP INC	2,575	$31K	0.27%
4216	STAASTAAR SURGICAL CO	1,000	$31K	0.27%	Call
4217	—REVOLUTION LIGHTING TECHNOLO	7,800	$31K	0.27%	Call
4218	—YRC WORLDWIDE INC	3,100	$31K	0.27%	Call
4219	AXSMAXSOME THERAPEUTICS INC	9,735	$31K	0.27%
4220	—ORBOTECH LTD	500	$31K	0.27%	Call
4221	—CELLCOM ISRAEL LTD	5,200	$30K	0.26%	Put
4222	BECNUSDBEACON ROOFING SUPPLY INC	695	$30K	0.26%
4223	—CHANGYOU COM LTD	1,771	$30K	0.26%
4224	—REVANCE THERAPEUTICS INC	1,100	$30K	0.26%	Put
4225	BURLBURLINGTON STORES INC	200	$30K	0.26%	Call
4226	NSCNORFOLK SOUTHERN CORP	200	$30K	0.26%	Put
4227	SIMOSILICON MOTION TECHNOLOGY CO	559	$30K	0.26%
4228	—SIERRA ONCOLOGY INC	10,000	$30K	0.26%
4229	—SIERRA ONCOLOGY INC	10,000	$30K	0.26%	Put
4230	—OWENS & MINOR INC NEW	1,800	$30K	0.26%	Call
4231	SLMSLM CORP	2,600	$30K	0.26%	Call
4232	INVAINNOVIVA INC	2,200	$30K	0.26%	Call
4233	FNFFIDELITY NATIONAL FINANCIAL	800	$30K	0.26%	Put
4234	—BIOSCRIP INC	10,000	$29K	0.25%	Call
4235	—SIERRA WIRELESS INC	1,800	$29K	0.25%	Put
4236	—HIGHPOINT RES CORP	4,813	$29K	0.25%
4237	ARANTERO RES CORP	1,345	$29K	0.25%
4238	—PREFERRED APT CMNTYS INC	1,700	$29K	0.25%	Call
4239	GCI1EURGANNETT CO INC	2,700	$29K	0.25%
4240	—STARS GROUP INC	800	$29K	0.25%	Put
4241	—GCP APPLIED TECHNOLOGIES INC	1,000	$29K	0.25%	Call
4242	—TALLGRASS ENERGY GP LP	1,300	$29K	0.25%	Put
4243	CLWCLEARWATER PAPER CORP	1,270	$29K	0.25%
4244	—GARDNER DENVER HLDGS INC	1,000	$29K	0.25%	Put
4245	CALXCALIX INC	3,677	$29K	0.25%
4246	MCMOELIS & CO	500	$29K	0.25%	Call
4247	—AIR TRANSPORT SERVICES GRP I	1,300	$29K	0.25%	Call
4248	—LA JOLLA PHARMACEUTICAL CO	1,000	$29K	0.25%	Call
4249	INFIQINFINITY PHARMACEUTICALS INC	15,000	$29K	0.25%
4250	WCCWESCO INTL INC	500	$29K	0.25%	Put
4251	KLICKULICKE & SOFFA INDS INC	1,200	$29K	0.25%	Call
4252	—NORTHSTAR REALTY EUROPE CORP	2,000	$29K	0.25%	Put
4253	HGVHILTON GRAND VACATIONS INC	799	$28K	0.24%
4254	—CONTAINER STORE GROUP INC	3,300	$28K	0.24%	Call
4255	—INVITAE CORP	3,800	$28K	0.24%	Put
4256	—ZAGG INC	1,600	$28K	0.24%	Call
4257	EVRGEVERGY INC	500	$28K	0.24%	Put
4258	PPLPEMBINA PIPELINE CORP	800	$28K	0.24%
4259	—LANDMARK INFRASTRUCTURE LP	2,000	$28K	0.24%	Call
4260	—OPHTHOTECH CORP	10,262	$28K	0.24%
4261	BPYBROOKFIELD PPTY PARTNERS L P	1,394	$27K	0.23%
4262	—RESONANT INC	4,800	$27K	0.23%	Put
4263	CYTKCYTOKINETICS INC	3,300	$27K	0.23%	Call
4264	NUENUCOR CORP	425	$27K	0.23%
4265	—FOAMIX PHARMACEUTICALS LTD	5,300	$27K	0.23%	Put
4266	—GRAN TIERRA ENERGY INC	7,856	$27K	0.23%
4267	NMRKNEWMARK GROUP INC	1,900	$27K	0.23%	Put
4268	—MELINTA THERAPEUTICS INC	4,269	$27K	0.23%
4269	VYGRVOYAGER THERAPEUTICS INC	1,400	$27K	0.23%	Call
4270	STKLSUNOPTA INC	3,200	$27K	0.23%	Call
4271	GLYCEURGLYCOMIMETICS INC	1,703	$27K	0.23%
4272	CGNXCOGNEX CORP	600	$27K	0.23%	Call
4273	CMRXEURCHIMERIX INC	5,700	$27K	0.23%
4274	—FORESCOUT TECHNOLOGIES INC	800	$27K	0.23%	Call
4275	IFNINDIA FD INC	1,101	$27K	0.23%
4276	—HOVNANIAN ENTERPRISES INC	16,700	$27K	0.23%	Call
4277	—EQT GP HLDGS LP	1,100	$26K	0.22%	Call
4278	CORAMERISOURCEBERGEN CORP	300	$26K	0.22%	Call
4279	NCMIEURNATIONAL CINEMEDIA INC	3,130	$26K	0.22%
4280	HMCHONDA MOTOR LTD	900	$26K	0.22%
4281	—QUOTIENT TECHNOLOGY INC	2,000	$26K	0.22%	Call
4282	—PRIMO WTR CORP	1,500	$26K	0.22%	Put
4283	VTEBVANGUARD TAX MANAGED INTL FD	600	$26K	0.22%	Call
4284	—LIMELIGHT NETWORKS INC	5,733	$26K	0.22%
4285	EBFENNIS INC	1,300	$26K	0.22%	Call
4286	LQDTLIQUIDITY SERVICES INC	3,900	$26K	0.22%	Call
4287	—PERNIX THERAPEUTICS HLDGS IN	10,521	$26K	0.22%
4288	—PHYSICIANS RLTY TR	1,600	$26K	0.22%	Call
4289	—ANTARES PHARMA INC	10,200	$26K	0.22%	Put
4290	LSCCLATTICE SEMICONDUCTOR CORP	3,900	$26K	0.22%	Call
4291	KALAKALA PHARMACEUTICALS INC	1,875	$26K	0.22%
4292	—POLARITYTE INC	1,100	$26K	0.22%	Put
4293	—GREENHILL & CO INC	900	$26K	0.22%	Put
4294	—ICONIX BRAND GROUP INC	45,000	$26K	0.22%	Put
4295	CUBECUBESMART	800	$26K	0.22%	Call
4296	MXMAGNACHIP SEMICONDUCTOR CORP	2,500	$26K	0.22%	Put
4297	—ZION OIL & GAS INC	6,500	$26K	0.22%	Put
4298	—ELECTRO SCIENTIFIC INDS	1,600	$25K	0.21%
4299	UISUNISYS CORP	1,900	$25K	0.21%	Call
4300	—VIVUS INC	35,868	$25K	0.21%

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