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
3901	HZOMARINEMAX INC	12,900	$629K	0.76%	Put
3902	A4SAMERIPRISE FINL INC	2,527	$629K	0.76%
3903	SJTSAN JUAN BASIN RTY TR	122,200	$628K	0.76%	Call
3904	HQYHEALTHEQUITY INC	7,800	$628K	0.76%	Call
3905	CRMDCORMEDIX INC	91,500	$628K	0.76%	Call
3906	PLXPROTALIX BIOTHERAPEUTICS INC	328,800	$628K	0.76%	Call
3907	LADRLADDER CAP CORP	54,400	$628K	0.76%	Call
3908	ODFLOLD DOMINION FREIGHT LINE IN	2,470	$627K	0.76%
3909	TRUTRANSUNION	5,700	$626K	0.76%	Put
3910	DACDANAOS CORPORATION	8,142	$625K	0.75%
3911	—PAYA HOLDINGS INC	56,700	$625K	0.75%	Call
3912	JACKJACK IN THE BOX INC	5,600	$624K	0.75%	Call
3913	—BRIGHTCOVE INC	43,400	$623K	0.75%	Put
3914	—CRESTWOOD EQUITY PARTNERS LP	20,785	$623K	0.75%
3915	ATOMATOMERA INC	29,065	$623K	0.75%
3916	NVDANVIDIA CORPORATION	778,600	$623K	0.75%	Call
3917	TLSTELOS CORP MD	18,300	$622K	0.75%	Call
3918	MBIMBIA INC	56,500	$622K	0.75%	Put
3919	EAFEURGRAFTECH INTL LTD	53,421	$621K	0.75%
3920	—PETIQ INC	16,100	$621K	0.75%	Call
3921	—LIVEVOX HOLDING INC	74,201	$620K	0.75%
3922	YRDYIREN DIGITAL LTD	102,984	$619K	0.75%
3923	NEONEOGENOMICS INC	13,700	$619K	0.75%	Put
3924	PLMRPALOMAR HLDGS INC	8,200	$619K	0.75%	Call
3925	—SINO-GLOBAL SHIPPING AMER LT	191,500	$619K	0.75%	Call
3926	—GENPREX INC	184,400	$618K	0.75%	Call
3927	—ASHFORD HOSPITALITY TR INC	135,300	$617K	0.74%	Call
3928	PRLBPROTO LABS INC	6,700	$615K	0.74%	Put
3929	—MEDALLIA INC	18,200	$614K	0.74%	Call
3930	—ALTAIR ENGR INC	8,900	$614K	0.74%	Call
3931	BLDTOPBUILD CORP	3,100	$613K	0.74%	Call
3932	CNPCENTERPOINT ENERGY INC	25,000	$613K	0.74%	Call
3933	KODKEASTMAN KODAK CO	73,700	$613K	0.74%	Put
3934	EBIXEUREBIX INC	18,060	$612K	0.74%
3935	AMPYAMPLIFY ENERGY CORP NEW	150,800	$611K	0.74%	Call
3936	AVAVAEROVIRONMENT INC	6,100	$611K	0.74%	Put
3937	PHGKONINKLIJKE PHILIPS N V	12,300	$611K	0.74%	Put
3938	ABMDEURABIOMED INC	1,953	$610K	0.74%
3939	BANDBANDWIDTH INC	4,412	$609K	0.73%
3940	ENVAENOVA INTL INC	17,800	$609K	0.73%	Call
3941	—LSB INDS INC	100,700	$609K	0.73%	Call
3942	CARGCARGURUS INC	23,197	$608K	0.73%
3943	ASRTASSERTIO HOLDINGS INC	389,800	$608K	0.73%	Call
3944	—CAPITAL PRODUCT PARTNERS L P	49,800	$608K	0.73%	Put
3945	LULULULULEMON ATHLETICA INC	1,665	$608K	0.73%
3946	MFINMEDALLION FINL CORP	68,500	$607K	0.73%	Call
3947	BAPCREDICORP LTD	5,000	$606K	0.73%	Call
3948	CPRXCATALYST PHARMACEUTICALS INC	105,248	$605K	0.73%
3949	CORTCORCEPT THERAPEUTICS INC	27,500	$605K	0.73%	Put
3950	—BERKELEY LTS INC	13,500	$605K	0.73%	Call
3951	—FLAGSTAR BANCORP INC	14,300	$604K	0.73%	Put
3952	USACUSA COMPRESSION PARTNERS LP	36,600	$603K	0.73%	Call
3953	LESLLESLIES INC	21,923	$603K	0.73%
3954	NXENEXGEN ENERGY LTD	146,479	$601K	0.72%
3955	—PERDOCEO ED CORP	49,000	$601K	0.72%	Call
3956	RILYB. RILEY FINANCIAL INC	7,947	$600K	0.72%
3957	PLXPROTALIX BIOTHERAPEUTICS INC	313,900	$600K	0.72%	Put
3958	TRUPTRUPANION INC	5,200	$599K	0.72%	Call
3959	CMICUMMINS INC	2,456	$599K	0.72%
3960	—PAVMED INC	93,562	$599K	0.72%
3961	—TRILLIUM THERAPEUTICS INC	61,800	$599K	0.72%	Put
3962	—EVOFEM BIOSCIENCES INC	529,650	$599K	0.72%
3963	HCCWARRIOR MET COAL INC	34,800	$599K	0.72%	Put
3964	TSTENARIS S A	27,300	$598K	0.72%	Call
3965	DIODDIODES INC	7,485	$597K	0.72%
3966	IMAXIMAX CORP	27,700	$596K	0.72%	Call
3967	—ZYNERBA PHARMACEUTICALS INC	112,512	$595K	0.72%
3968	—AETERNA ZENTARIS INC	676,900	$594K	0.72%	Call
3969	CALMCAL MAINE FOODS INC	16,400	$594K	0.72%	Put
3970	ADMAADMA BIOLOGICS INC	371,426	$594K	0.72%
3971	OSWONESPAWORLD HOLDINGS LIMITED	61,200	$593K	0.72%	Call
3972	—SPORTSMANS WHSE HLDGS INC	33,300	$592K	0.71%	Put
3973	EBEVENTBRITE INC	31,100	$591K	0.71%	Put
3974	MRSHMARSH & MCLENNAN COS INC	4,200	$591K	0.71%	Put
3975	—RENESOLA LTD	64,900	$591K	0.71%	Put
3976	VFCV F CORP	7,200	$591K	0.71%	Put
3977	IBRXIMMUNITYBIO INC	41,300	$590K	0.71%	Put
3978	DVAXDYNAVAX TECHNOLOGIES CORP	59,934	$590K	0.71%
3979	—PROTERRA INC	34,500	$590K	0.71%	Put
3980	MSTRMICROSTRATEGY INC	887,500	$590K	0.71%	Call
3981	ELFE L F BEAUTY INC	21,700	$589K	0.71%	Call
3982	TSTENARIS S A	26,900	$589K	0.71%	Put
3983	—QELL ACQUISITION CORP	59,182	$589K	0.71%
3984	—GREENSKY INC	105,900	$588K	0.71%	Call
3985	—INTRUSION INC	38,000	$586K	0.71%	Call
3986	—AMPIO PHARMACEUTICALS INC	350,202	$585K	0.71%
3987	—CALLAWAY GOLF CO	17,300	$584K	0.70%	Put
3988	CHEFCHEFS WHSE INC	18,342	$584K	0.70%
3989	—OWENS & MINOR INC NEW	13,800	$584K	0.70%	Put
3990	FOLDAMICUS THERAPEUTICS INC	60,500	$583K	0.70%	Put
3991	HWKNHAWKINS INC	17,800	$583K	0.70%	Call
3992	MSCIMSCI INC	1,093	$583K	0.70%
3993	CSTECAESARSTONE LTD	39,400	$582K	0.70%	Put
3994	UFSDOMTAR CORP	10,586	$582K	0.70%
3995	INVHINVITATION HOMES INC	15,600	$582K	0.70%	Put
3996	—INTERPUBLIC GROUP COS INC	17,900	$582K	0.70%	Call
3997	SCSANTANDER CONSUMER USA HLDGS	15,985	$581K	0.70%
3998	DAKTDAKTRONICS INC	88,200	$581K	0.70%	Call
3999	TBCHTURTLE BEACH CORP	18,200	$581K	0.70%	Call
4000	RGRSTURM RUGER & CO INC	6,456	$581K	0.70%

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