GROUP ONE TRADING LLC Q3 2018 Filing

Filed November 8, 2018

Portfolio Value

$12.7M

Holdings

5,172

Report Date

Q3 2018

Filing Type

13F-HR

All Holdings (5,172 positions)

#	Stock	Shares	Value	% Portfolio	Type
4201	—AEROHIVE NETWORKS INC	8,344	$34K	0.27%
4202	NVTA1EURINVITAE CORP	2,041	$34K	0.27%
4203	—PROVIDENCE SVC CORP	500	$34K	0.27%	Call
4204	MSMORGAN STANLEY CHINA A SH FD	1,600	$34K	0.27%	Put
4205	OMFONEMAIN HLDGS INC	1,003	$34K	0.27%
4206	—TABLEAU SOFTWARE INC	300	$34K	0.27%	Put
4207	—LOXO ONCOLOGY INC	200	$34K	0.27%	Put
4208	BLBLACKLINE INC	600	$34K	0.27%
4209	—CELSION CORPORATION	12,100	$34K	0.27%	Call
4210	PENGSMART GLOBAL HLDGS INC	1,200	$34K	0.27%	Call
4211	CMCCOMMERCIAL METALS CO	1,662	$34K	0.27%
4212	ARRUSDARMOUR RESIDENTIAL REIT INC	1,535	$34K	0.27%
4213	CNHCNH INDL N V	2,800	$34K	0.27%	Put
4214	—CAI INTERNATIONAL INC	1,500	$34K	0.27%	Put
4215	NVRIHARSCO CORP	1,200	$34K	0.27%	Put
4216	—EXONE CO	3,600	$34K	0.27%	Put
4217	INVAINNOVIVA INC	2,260	$34K	0.27%
4218	—LIPOCINE INC NEW	23,674	$33K	0.26%
4219	SHLDEURSEARS HLDGS CORP	34,602	$33K	0.26%
4220	—QUIDEL CORP	500	$33K	0.26%	Call
4221	CCICROWN CASTLE INTL CORP NEW	300	$33K	0.26%	Put
4222	FPIFARMLAND PARTNERS INC	4,900	$33K	0.26%	Put
4223	—JUNIPER NETWORKS INC	1,100	$33K	0.26%	Put
4224	—LUMINEX CORP DEL	1,100	$33K	0.26%	Call
4225	—KEMPHARM INC	6,873	$33K	0.26%
4226	—TREVENA INC	15,600	$33K	0.26%	Put
4227	—WEB COM GROUP INC	1,200	$33K	0.26%	Call
4228	SVRASAVARA INC	3,000	$33K	0.26%	Call
4229	ENTAENANTA PHARMACEUTICALS INC	387	$33K	0.26%
4230	—ARCH COAL INC	368	$33K	0.26%
4231	—AEROHIVE NETWORKS INC	8,100	$33K	0.26%	Call
4232	MHLAMAIDEN HOLDINGS LTD	11,600	$33K	0.26%	Put
4233	—HOLLYSYS AUTOMATION TECHNOLO	1,500	$32K	0.25%	Put
4234	IPHIINPHI CORP	831	$32K	0.25%
4235	GSATGLOBALSTAR INC	62,900	$32K	0.25%	Put
4236	—CISION LTD	1,900	$32K	0.25%	Call
4237	MSBMESABI TR	1,200	$32K	0.25%	Put
4238	—EVERI HLDGS INC	3,500	$32K	0.25%	Call
4239	MACKEURMERRIMACK PHARMACEUTICALS IN	6,084	$32K	0.25%
4240	SFESSAFEGUARD SCIENTIFICS INC	3,370	$32K	0.25%
4241	CBTCABOT CORP	516	$32K	0.25%
4242	—J JILL INC	5,000	$31K	0.24%
4243	—MAZOR ROBOTICS LTD	536	$31K	0.24%
4244	—NUVECTRA CORP	1,426	$31K	0.24%
4245	OSKOSHKOSH CORP	434	$31K	0.24%
4246	REEVEREST RE GROUP LTD	136	$31K	0.24%
4247	—CHANGYOU COM LTD	2,316	$31K	0.24%
4248	LNCLINCOLN NATL CORP IND	463	$31K	0.24%
4249	—YRC WORLDWIDE INC	3,500	$31K	0.24%	Put
4250	—FLOTEK INDS INC DEL	12,900	$31K	0.24%	Put
4251	KFYKORN FERRY INTL	600	$30K	0.24%	Call
4252	—NEWLINK GENETICS CORP	12,500	$30K	0.24%	Put
4253	—FIBROGEN INC	500	$30K	0.24%	Call
4254	—TWO HBRS INVT CORP	2,000	$30K	0.24%	Call
4255	NEOGNEOGEN CORP	414	$30K	0.24%
4256	—GREENBRIER COS INC	500	$30K	0.24%	Put
4257	—INTERXION HOLDING N.V	443	$30K	0.24%
4258	BCRXBIOCRYST PHARMACEUTICALS	3,879	$30K	0.24%
4259	—YRC WORLDWIDE INC	3,288	$30K	0.24%
4260	FLEXFLEX LTD	2,300	$30K	0.24%	Put
4261	LOCOEL POLLO LOCO HLDGS INC	2,400	$30K	0.24%	Call
4262	—MEDLEY CAP CORP	7,800	$30K	0.24%	Put
4263	ATLCATLANTICUS HLDGS CORP	10,300	$30K	0.24%
4264	INOINOVIO PHARMACEUTICALS INC	5,433	$30K	0.24%
4265	—ARADIGM CORP	26,500	$30K	0.24%	Call
4266	—QUICKLOGIC CORP	29,655	$30K	0.24%
4267	—ORBOTECH LTD	500	$30K	0.24%
4268	—CNX MIDSTREAM PARTNERS LP	1,500	$29K	0.23%	Put
4269	PFGPRINCIPAL FINL GROUP INC	500	$29K	0.23%	Call
4270	BHRBRAEMAR HOTELS & RESORTS INC	2,500	$29K	0.23%	Put
4271	STAASTAAR SURGICAL CO	600	$29K	0.23%	Call
4272	—AMERICAN MIDSTREAM PARTNERS	4,600	$29K	0.23%	Call
4273	DATATABLEAU SOFTWARE INC	260	$29K	0.23%
4274	ARDXARDELYX INC	6,600	$29K	0.23%	Call
4275	—EXPEDITORS INTL WASH INC	400	$29K	0.23%	Call
4276	BMABANCO MACRO SA	700	$29K	0.23%	Put
4277	—NOVELION THERAPEUTICS INC	9,800	$29K	0.23%	Call
4278	PAMPAMPA ENERGIA S A	926	$29K	0.23%
4279	—TARO PHARMACEUTICAL INDS LTD	300	$29K	0.23%	Call
4280	—REALNETWORKS INC	9,952	$29K	0.23%
4281	—INTREPID POTASH INC	8,000	$29K	0.23%	Put
4282	FLRFLUOR CORP NEW	500	$29K	0.23%	Put
4283	CVGWCALAVO GROWERS INC	300	$29K	0.23%	Call
4284	REFRRESEARCH FRONTIERS INC	18,400	$29K	0.23%	Call
4285	PENGSMART GLOBAL HLDGS INC	1,025	$29K	0.23%
4286	CVLGCOVENANT TRANSN GROUP INC	1,000	$29K	0.23%	Call
4287	AKRACADIA RLTY TR	1,000	$28K	0.22%
4288	—PROTALIX BIOTHERAPEUTICS INC	38,356	$28K	0.22%
4289	SYU1SYNOVUS FINL CORP	610	$28K	0.22%
4290	SPHSEURSOPHIRIS BIO INC	9,995	$28K	0.22%
4291	AKRACADIA RLTY TR	1,000	$28K	0.22%	Put
4292	SBRASABRA HEALTH CARE REIT INC	1,200	$28K	0.22%	Call
4293	—COMPUTER TASK GROUP INC	5,400	$28K	0.22%	Put
4294	CUBICUSTOMERS BANCORP INC	1,200	$28K	0.22%	Call
4295	TDWTIDEWATER INC NEW	899	$28K	0.22%
4296	—BRITISH AMERN TOB PLC	600	$28K	0.22%	Call
4297	MCCUSDMEDLEY CAP CORP	7,377	$28K	0.22%
4298	—OWENS & MINOR INC NEW	1,700	$28K	0.22%	Put
4299	KRGKITE RLTY GROUP TR	1,700	$28K	0.22%
4300	—GRAN TIERRA ENERGY INC	7,300	$28K	0.22%	Call

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