GROUP ONE TRADING LLC Q2 2021 Filing

Filed August 10, 2021

Portfolio Value

$82.9M

Holdings

8,103

Report Date

Q2 2021

Filing Type

13F-HR

All Holdings (8,103 positions)

#	Stock	Shares	Value	% Portfolio	Type
4301	—CALITHERA BIOSCIENCES INC	210,100	$439K	0.53%	Call
4302	—SINCLAIR BROADCAST GROUP INC	13,200	$439K	0.53%	Call
4303	OSPNONESPAN INC	17,100	$437K	0.53%	Put
4304	—OFFICE PPTYS INCOME TR	14,900	$437K	0.53%	Call
4305	OPYOPPENHEIMER HLDGS INC	8,600	$437K	0.53%	Put
4306	—SPARK NETWORKS SE	84,413	$437K	0.53%
4307	FLBFLUIDIGM CORP DEL	70,982	$437K	0.53%
4308	MCRBSERES THERAPEUTICS INC	18,300	$436K	0.53%	Put
4309	—VIVOPOWER INTERNATIONAL PLC	59,700	$435K	0.52%	Put
4310	—ENABLE MIDSTREAM PARTNERS LP	47,800	$435K	0.52%	Put
4311	OVIDOVID THERAPEUTICS INC	111,200	$435K	0.52%	Call
4312	—LORAL SPACE & COM INC	11,200	$435K	0.52%	Call
4313	RPRXROYALTY PHARMA PLC	10,600	$434K	0.52%	Call
4314	—BROOKLYN IMMUNOTHERAPEUTICS	24,100	$434K	0.52%	Put
4315	—GLOBUS MED INC	5,600	$434K	0.52%	Put
4316	—RODGERS SILICON VALLEY AQ CO	18,900	$434K	0.52%	Call
4317	DOVDOVER CORP	2,872	$433K	0.52%
4318	KURAKURA ONCOLOGY INC	20,700	$432K	0.52%	Put
4319	—MICRO FOCUS INTL PLC	57,400	$432K	0.52%	Call
4320	CTLPCANTALOUPE INC	36,343	$431K	0.52%
4321	XPXP INC	9,900	$431K	0.52%	Call
4322	TXG10X GENOMICS INC	2,200	$431K	0.52%	Put
4323	IMMRIMMERSION CORP	49,100	$431K	0.52%	Put
4324	—PLAYA HOTELS & RESORTS NV	57,900	$430K	0.52%	Call
4325	BEEMBEAM GLOBAL	11,200	$429K	0.52%	Call
4326	—TWO HBRS INVT CORP	56,800	$429K	0.52%	Put
4327	AEISADVANCED ENERGY INDS	3,800	$428K	0.52%	Put
4328	—SOS LIMITED	129,200	$428K	0.52%	Put
4329	—TALEND S A	6,517	$428K	0.52%
4330	BCBRUNSWICK CORP	4,300	$428K	0.52%	Put
4331	—PACWEST BANCORP DEL	10,400	$428K	0.52%	Put
4332	SIEBSIEBERT FINL CORP	88,900	$428K	0.52%	Put
4333	—HEPION PHARMACEUTICALS INC	215,900	$427K	0.52%	Call
4334	CMBTEURONAV NV	45,709	$426K	0.51%
4335	—BIOSIG TECHNOLOGIES INC	110,300	$426K	0.51%	Call
4336	—PENNSYLVANIA REAL ESTATE INV	171,100	$426K	0.51%	Call
4337	—SUNNOVA ENERGY INTL INC.	11,300	$426K	0.51%	Call
4338	—FOLEY TRASIMENE ACQUISTN COR	43,577	$426K	0.51%
4339	ALTALTIMMUNE INC	43,100	$425K	0.51%	Put
4340	NSPINSPERITY INC	4,700	$425K	0.51%	Put
4341	—REGIS CORP MINN	45,300	$424K	0.51%	Call
4342	—BLACKSTONE MTG TR INC	13,300	$424K	0.51%	Put
4343	CNPCENTERPOINT ENERGY INC	17,300	$424K	0.51%	Put
4344	ARVNARVINAS INC	5,500	$424K	0.51%	Put
4345	ABCLABCELLERA BIOLOGICS INC	19,222	$423K	0.51%
4346	—JAMF HLDG CORP	12,600	$423K	0.51%	Put
4347	SPNSSAPIENS INTL CORP N V	16,100	$423K	0.51%
4348	IPGINTERPUBLIC GROUP COS INC	13,007	$423K	0.51%
4349	NVTNVENT ELECTRIC PLC	13,500	$422K	0.51%	Call
4350	—CYRUSONE INC	5,900	$422K	0.51%	Put
4351	—TRANSLATE BIO INC	15,321	$422K	0.51%
4352	—CASPER SLEEP INC	51,200	$422K	0.51%	Put
4353	COMPCOMPASS INC	32,100	$422K	0.51%	Call
4354	—BEACON ROOFING SUPPLY INC	7,900	$421K	0.51%	Call
4355	—ENDO INTL PLC	89,800	$420K	0.51%	Put
4356	—WABTEC	5,100	$420K	0.51%	Put
4357	—HILL-ROM HLDGS INC	3,700	$420K	0.51%	Put
4358	APLEAPPLE HOSPITALITY REIT INC	27,514	$420K	0.51%
4359	PORPORTLAND GEN ELEC CO	9,118	$420K	0.51%
4360	ETRNUSDEQUITRANS MIDSTREAM CORP	49,343	$420K	0.51%
4361	SOGOGBPSOGOU INC	49,161	$419K	0.51%
4362	—SURFACE ONCOLOGY INC	56,200	$419K	0.51%	Call
4363	CNXCCONCENTRIX CORP	2,600	$418K	0.50%	Call
4364	BRKRBRUKER CORP	5,500	$418K	0.50%	Put
4365	LPGDORIAN LPG LTD	29,600	$418K	0.50%	Put
4366	WLDNWILLDAN GROUP INC	11,100	$418K	0.50%	Call
4367	—NEXTGEN ACQUISITION CORP	42,000	$417K	0.50%	Put
4368	ESPRESPERION THERAPEUTICS INC NE	19,699	$417K	0.50%
4369	—ENERPLUS CORP	58,000	$417K	0.50%	Put
4370	—CALIFORNIA WTR SVC GROUP	7,500	$417K	0.50%	Put
4371	—SPARK ENERGY INC	36,800	$417K	0.50%	Call
4372	RCREADY CAPITAL CORP	26,200	$416K	0.50%	Put
4373	GERNGERON CORP	295,300	$416K	0.50%	Put
4374	—PROTHENA CORP PLC	8,100	$416K	0.50%	Call
4375	ADMAADMA BIOLOGICS INC	259,700	$416K	0.50%	Call
4376	TCRTZIOPHARM ONCOLOGY INC	157,215	$415K	0.50%
4377	CYHCOMMUNITY HEALTH SYS INC NEW	26,900	$415K	0.50%	Call
4378	PENGSMART GLOBAL HLDGS INC	8,700	$415K	0.50%	Call
4379	KOPNKOPIN CORP	50,693	$415K	0.50%
4380	—CASA SYS INC	46,700	$414K	0.50%	Call
4381	—BRIXMOR PPTY GROUP INC	18,100	$414K	0.50%	Call
4382	—PLANTRONICS INC NEW	9,900	$413K	0.50%	Put
4383	APTALPHA PRO TECH LTD	48,213	$413K	0.50%
4384	ADPTADAPTIVE BIOTECHNOLOGIES COR	10,100	$413K	0.50%	Put
4385	BENFRANKLIN RESOURCES INC	12,900	$413K	0.50%	Put
4386	—GREAT PANTHER MNG LTD	659,700	$412K	0.50%	Call
4387	ITTITT INC	4,500	$412K	0.50%	Put
4388	—APOLLO COML REAL EST FIN INC	25,800	$412K	0.50%	Call
4389	—LIGHTNING EMOTORS INC	49,500	$411K	0.50%	Put
4390	AOSSMITH A O CORP	5,700	$411K	0.50%	Call
4391	CTSOCYTOSORBENTS CORP	54,300	$410K	0.49%	Call
4392	—FAR PEAK ACQUISITION CORP	41,200	$410K	0.49%	Call
4393	EPAMEPAM SYS INC	800	$409K	0.49%
4394	ITRNITURAN LOCATION AND CONTROL	15,000	$409K	0.49%	Put
4395	HBMHUDBAY MINERALS INC	61,200	$408K	0.49%	Call
4396	—AKOUSTIS TECHNOLOGIES INC	38,100	$408K	0.49%	Put
4397	FPIFARMLAND PARTNERS INC	33,888	$408K	0.49%
4398	GWWGRAINGER W W INC	932	$408K	0.49%
4399	NKTRNEKTAR THERAPEUTICS	23,800	$408K	0.49%	Call
4400	JBLJABIL INC	7,000	$407K	0.49%	Put

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