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
6501	—PROGENITY INC	14,600	$52K	0.06%	Put
6502	INSPINSPIRE MED SYS INC	268	$52K	0.06%
6503	QNSTQUINSTREET INC	2,807	$52K	0.06%
6504	—DYADIC INTL INC DEL	14,400	$52K	0.06%	Call
6505	IDTIDT CORP	1,400	$52K	0.06%	Call
6506	—SHARPS COMPLIANCE CORP	5,000	$52K	0.06%	Call
6507	MGRCMCGRATH RENTCORP	632	$52K	0.06%
6508	BPYPNBROOKFIELD PPTY REIT INC	2,757	$52K	0.06%
6509	—U S XPRESS ENTERPRISES INC	6,100	$52K	0.06%	Call
6510	—NANOSTRING TECHNOLOGIES INC	800	$52K	0.06%	Call
6511	CRICARTERS INC	500	$52K	0.06%	Call
6512	—RYB ED INC	12,000	$52K	0.06%	Call
6513	—RENALYTIX PLC	1,700	$52K	0.06%	Call
6514	—GLYCOMIMETICS INC	22,400	$52K	0.06%	Call
6515	—PHASEBIO PHARMACEUTICALS INC	14,100	$52K	0.06%	Call
6516	RDHLREDHILL BIOPHARMA LTD	7,500	$52K	0.06%	Put
6517	ABTUGBXAQUABOUNTY TECHNOLOGIES INC	9,583	$51K	0.06%
6518	—IVERIC BIO INC	8,100	$51K	0.06%	Put
6519	ABGASBURY AUTOMOTIVE GROUP INC	300	$51K	0.06%	Call
6520	ACCUSDAMERICAN CAMPUS CMNTYS INC	1,100	$51K	0.06%
6521	ABGASBURY AUTOMOTIVE GROUP INC	300	$51K	0.06%	Put
6522	—SHIFTPIXY INC	21,700	$51K	0.06%	Put
6523	NNVCNANOVIRICIDES INC	11,000	$51K	0.06%	Call
6524	GKOSGLAUKOS CORP	600	$51K	0.06%	Put
6525	CTLPCANTALOUPE INC	4,300	$51K	0.06%	Put
6526	SNPUSDCHINA PETROLEUM & CHEMICAL C	1,000	$51K	0.06%
6527	GOSSGOSSAMER BIO INC	6,300	$51K	0.06%	Call
6528	—ALGONQUIN PWR UTILS CORP	3,400	$51K	0.06%	Call
6529	AYTUAYTU BIOPHARMA INC	10,100	$51K	0.06%	Call
6530	CTMXCYTOMX THERAPEUTICS INC	8,000	$51K	0.06%	Put
6531	MGNXMACROGENICS INC	1,900	$51K	0.06%	Call
6532	—BONANZA CREEK ENERGY INC	1,082	$51K	0.06%
6533	LFUSLITTELFUSE INC	200	$51K	0.06%	Put
6534	INVAINNOVIVA INC	3,813	$51K	0.06%
6535	VYGRVOYAGER THERAPEUTICS INC	12,000	$50K	0.06%	Call
6536	—LUX HEALTH TECH ACQUISITION	5,100	$50K	0.06%	Put
6537	GMREUSDGLOBAL MED REIT INC	3,400	$50K	0.06%
6538	ZEUSOLYMPIC STEEL INC	1,700	$50K	0.06%	Call
6539	—SERVICE PPTYS TR	4,000	$50K	0.06%	Call
6540	CBAYUSDCYMABAY THERAPEUTICS INC	11,540	$50K	0.06%
6541	—CERECOR INC	15,239	$50K	0.06%
6542	FUE1FUEL TECH INC	21,064	$50K	0.06%
6543	SGRYSURGERY PARTNERS INC	751	$50K	0.06%
6544	MGYMAGNOLIA OIL & GAS CORP	3,200	$50K	0.06%	Call
6545	—ADITX THERAPEUTICS INC	19,400	$50K	0.06%	Call
6546	—NABRIVA THERAPEUTICS PLC	37,387	$50K	0.06%
6547	PDSPRECISION DRILLING CORP	1,200	$50K	0.06%	Call
6548	EVCENTRAVISION COMMUNICATIONS C	7,420	$50K	0.06%
6549	TXTERNIUM SA	1,300	$50K	0.06%	Put
6550	EKSOEUREKSO BIONICS HLDGS INC	9,143	$50K	0.06%
6551	—SITE CTRS CORP	3,300	$50K	0.06%	Put
6552	KPTIEURKARYOPHARM THERAPEUTICS INC	4,783	$49K	0.06%
6553	PLYAPLAYA HOTELS & RESORTS NV	6,555	$49K	0.06%
6554	—HENRY JACK & ASSOC INC	300	$49K	0.06%	Put
6555	ACVAACV AUCTIONS INC	1,900	$49K	0.06%	Call
6556	KRCKILROY RLTY CORP	700	$49K	0.06%	Call
6557	—RATTLER MIDSTREAM LP	4,500	$49K	0.06%	Put
6558	AAMIBRIGHTSPHERE INVT GROUP INC	2,100	$49K	0.06%	Call
6559	FNHCUSDFEDNAT HLDG CO	11,846	$49K	0.06%
6560	TPVGTRIPLEPOINT VENTURE GROWTH B	3,200	$49K	0.06%	Put
6561	ZUMZZUMIEZ INC	1,000	$49K	0.06%	Put
6562	—ZYMEWORKS INC	1,400	$49K	0.06%	Call
6563	PNNTPENNANTPARK INVT CORP	7,301	$49K	0.06%
6564	—BENEFITFOCUS INC	3,500	$49K	0.06%	Call
6565	CUKCARNIVAL PLC	2,100	$49K	0.06%	Put
6566	CPGCRESCENT PT ENERGY CORP	10,708	$49K	0.06%
6567	HTGCHERCULES CAPITAL INC	2,900	$49K	0.06%	Put
6568	VOCVOC ENERGY TR	10,300	$49K	0.06%	Put
6569	—TPG PACE TECH OPPORTUNITIES	4,933	$49K	0.06%
6570	NOWSERVICENOW INC	88,600	$49K	0.06%	Put
6571	—AVADEL PHARMACEUTICALS PLC	7,100	$48K	0.06%	Put
6572	CDZICADIZ INC	3,500	$48K	0.06%	Call
6573	—FINTECH ACQUISITION CORP V	3,939	$48K	0.06%
6574	PACKRANPAK HOLDINGS CORP	1,900	$48K	0.06%	Call
6575	RYZRYERSON HLDG CORP	3,300	$48K	0.06%	Call
6576	—STEEL CONNECT INC	23,837	$48K	0.06%
6577	—DATTO HLDG CORP	1,741	$48K	0.06%
6578	—PAYA HOLDINGS INC	4,400	$48K	0.06%	Put
6579	—DURECT CORP	29,400	$48K	0.06%	Put
6580	CFRXUSDCONTRAFECT CORP	10,933	$48K	0.06%
6581	—ION GEOPHYSICAL CORP	23,000	$48K	0.06%	Put
6582	—AGILE THERAPEUTICS INC	36,377	$48K	0.06%
6583	MFINMEDALLION FINL CORP	5,400	$48K	0.06%	Put
6584	WSRWHITESTONE REIT	5,800	$48K	0.06%
6585	—POTLATCHDELTIC CORPORATION	900	$48K	0.06%	Call
6586	—LYDALL INC	800	$48K	0.06%	Put
6587	—F N B CORP	3,900	$48K	0.06%	Put
6588	—PHOENIX NEW MEDIA LTD	30,900	$48K	0.06%	Put
6589	—COUSINS PPTYS INC	1,300	$48K	0.06%	Put
6590	—BOTTOMLINE TECH DEL INC	1,300	$48K	0.06%	Put
6591	CHHCHOICE HOTELS INTL INC	400	$48K	0.06%	Call
6592	EFXEQUIFAX INC	200	$48K	0.06%	Put
6593	ACHCACADIA HEALTHCARE COMPANY IN	767	$48K	0.06%
6594	BBTBERKSHIRE HILLS BANCORP INC	1,747	$48K	0.06%
6595	AMZNAMAZON COM INC	13,816	$48K	0.06%
6596	—CELSION CORP	37,000	$47K	0.06%	Put
6597	CLWCLEARWATER PAPER CORP	1,635	$47K	0.06%
6598	—IVERIC BIO INC	7,500	$47K	0.06%	Call
6599	LQDALIQUIDIA CORPORATION	16,355	$47K	0.06%
6600	—QUAKER CHEM CORP	200	$47K	0.06%	Put

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