GROUP ONE TRADING LLC Q1 2021 Filing

Filed May 12, 2021

Portfolio Value

$67.5M

Holdings

7,548

Report Date

Q1 2021

Filing Type

13F-HR

All Holdings (7,548 positions)

#	Stock	Shares	Value	% Portfolio	Type
3801	OSCROSCAR HEALTH INC	20,900	$562K	0.83%	Call
3802	—500 COM LTD	26,300	$562K	0.83%	Call
3803	ETWOGBPE2OPEN PARENT HOLDINGS INC	56,374	$561K	0.83%
3804	—NORTHERN STAR ACQUISITION CO	50,422	$561K	0.83%
3805	—KADMON HLDGS INC	144,100	$561K	0.83%	Call
3806	AMPYAMPLIFY ENERGY CORP NEW	201,600	$560K	0.83%	Call
3807	KPTIEURKARYOPHARM THERAPEUTICS INC	53,249	$560K	0.83%
3808	VOYAVOYA FINANCIAL INC	8,800	$560K	0.83%	Put
3809	—SHELL MIDSTREAM PARTNERS L P	42,000	$560K	0.83%	Put
3810	—SVMK INC	30,500	$559K	0.83%	Call
3811	NVSTENVISTA HOLDINGS CORPORATION	13,700	$559K	0.83%	Put
3812	—HILLENBRAND INC	11,700	$558K	0.83%	Put
3813	SEASEABRIDGE GOLD INC	34,531	$558K	0.83%
3814	VRSNVERISIGN INC	2,800	$557K	0.82%	Put
3815	AUDCAUDIOCODES LTD	20,654	$557K	0.82%
3816	—YAMANA GOLD INC	128,400	$557K	0.82%	Call
3817	INCYINCYTE CORP	6,849	$557K	0.82%
3818	—CASA SYS INC	58,300	$556K	0.82%	Call
3819	HIIHUNTINGTON INGALLS INDS INC	2,700	$556K	0.82%	Call
3820	—NEW GOLD INC CDA	360,900	$556K	0.82%	Call
3821	—VEDANTA LIMITED	44,197	$556K	0.82%
3822	—CRESCENT ACQUISITION CORP	55,199	$555K	0.82%
3823	—APOLLO COML REAL EST FIN INC	39,700	$555K	0.82%	Put
3824	REGREGENCY CTRS CORP	9,782	$555K	0.82%
3825	MBUUMALIBU BOATS INC	700	$555K	0.82%	Call
3826	ADMAADMA BIOLOGICS INC	314,599	$554K	0.82%
3827	PGENPRECIGEN INC	80,362	$554K	0.82%
3828	RPRXROYALTY PHARMA PLC	12,700	$554K	0.82%	Call
3829	CURICURIOSITYSTREAM INC	40,900	$554K	0.82%	Put
3830	—ORCHARD THERAPEUTICS PLC	76,300	$554K	0.82%	Put
3831	HRLHORMEL FOODS CORP	11,600	$554K	0.82%	Call
3832	—AVALONBAY CMNTYS INC	3,000	$554K	0.82%	Put
3833	MDXGMIMEDX GROUP INC	53,670	$553K	0.82%
3834	WENWENDYS CO	27,283	$553K	0.82%
3835	DAKTDAKTRONICS INC	88,200	$553K	0.82%	Call
3836	KALVKALVISTA PHARMACEUTICALS INC	21,500	$552K	0.82%	Put
3837	SIMOSILICON MOTION TECHNOLOGY CO	9,300	$552K	0.82%	Call
3838	AMTXAEMETIS INC	22,529	$552K	0.82%
3839	CLOVCLOVER HEALTH INVESTMENTS CO	73,033	$552K	0.82%
3840	COHUCOHU INC	13,200	$552K	0.82%	Call
3841	WIMIWIMI HOLOGRAM CLOUD INC	83,527	$551K	0.82%
3842	WRAPWRAP TECHNOLOGIES INC	99,186	$551K	0.82%
3843	—MERIT MED SYS INC	9,200	$551K	0.82%	Call
3844	—CBDMD INC	133,100	$551K	0.82%	Call
3845	—HEPION PHARMACEUTICALS INC	299,000	$550K	0.81%	Call
3846	EXKENDEAVOUR SILVER CORP	110,800	$550K	0.81%	Put
3847	—SILVER SPIKE ACQUISITION COR	29,900	$549K	0.81%	Call
3848	DECKDECKERS OUTDOOR CORP	1,662	$549K	0.81%
3849	—BEACON ROOFING SUPPLY INC	10,500	$549K	0.81%	Put
3850	ASOACADEMY SPORTS & OUTDOORS IN	20,260	$547K	0.81%
3851	—PORTLAND GEN ELEC CO	11,500	$546K	0.81%	Call
3852	CSTECAESARSTONE LTD	39,800	$546K	0.81%	Put
3853	ARLPALLIANCE RESOURCE PARTNERS L	94,000	$545K	0.81%	Call
3854	OIO-I GLASS INC	37,000	$545K	0.81%	Call
3855	—PARTY CITY HOLDCO INC	94,000	$545K	0.81%	Put
3856	—WINNEBAGO INDS INC	7,100	$545K	0.81%	Call
3857	—TRAVELCENTERS OF AMERICA INC	20,100	$545K	0.81%	Put
3858	—ACELRX PHARMACEUTICALS INC	320,000	$544K	0.81%	Call
3859	GLPIGAMING & LEISURE PPTYS INC	12,800	$543K	0.80%	Call
3860	—SVB FINANCIAL GROUP	1,100	$543K	0.80%	Call
3861	—PLURISTEM THERAPEUTICS INC	113,800	$543K	0.80%	Call
3862	HOUSREALOGY HLDGS CORP	35,808	$542K	0.80%
3863	CLMTUSDCALUMET SPECIALTY PRODS PTNR	88,862	$542K	0.80%
3864	—CORE MARK HOLDING CO INC	1,400	$542K	0.80%	Call
3865	APTALPHA PRO TECH LTD	55,535	$542K	0.80%
3866	PRGPROG HOLDINGS INC	12,500	$541K	0.80%	Call
3867	—CIT GROUP INC	10,500	$541K	0.80%	Put
3868	ALTALTIMMUNE INC	38,200	$540K	0.80%	Put
3869	EBSEMERGENT BIOSOLUTIONS INC	5,800	$539K	0.80%	Put
3870	INVHINVITATION HOMES INC	16,846	$539K	0.80%
3871	HZOMARINEMAX INC	10,922	$539K	0.80%
3872	—VIVOPOWER INTERNATIONAL PLC	53,500	$539K	0.80%	Call
3873	IDXXIDEXX LABS INC	1,100	$538K	0.80%	Call
3874	RXTRACKSPACE TECHNOLOGY INC	22,600	$537K	0.80%	Put
3875	YALAYALLA GROUP LTD	21,400	$535K	0.79%	Put
3876	VNOVORNADO RLTY TR	11,780	$535K	0.79%
3877	—MID-AMER APT CMNTYS INC	3,700	$534K	0.79%	Put
3878	HIMSHIMS & HERS HEALTH INC	40,400	$534K	0.79%	Put
3879	FMFFORMFACTOR INC	11,846	$534K	0.79%
3880	—ASPIRA WOMENS HEALTH INC	78,900	$533K	0.79%	Call
3881	LINLINDE PLC	1,900	$532K	0.79%	Put
3882	—LORAL SPACE & COM INC	14,100	$531K	0.79%	Put
3883	—ENERGOUS CORP	130,900	$531K	0.79%	Put
3884	DHTDHT HOLDINGS INC	89,508	$531K	0.79%
3885	CARSCARS COM INC	40,900	$530K	0.78%	Call
3886	SRESEMPRA ENERGY	4,000	$530K	0.78%	Put
3887	XPELXPEL INC	10,200	$530K	0.78%	Put
3888	APAAPA CORPORATION	29,568	$529K	0.78%
3889	PLBYPLBY GROUP INC	26,900	$527K	0.78%	Put
3890	—SINCLAIR BROADCAST GROUP INC	18,000	$527K	0.78%	Call
3891	FTITECHNIPFMC PLC	68,200	$527K	0.78%	Call
3892	INGING GROEP N.V.	42,900	$525K	0.78%	Put
3893	—FOLEY TRASIMENE ACQUISTN COR	52,300	$525K	0.78%	Call
3894	LABFLUIDIGM CORP DEL	116,100	$525K	0.78%	Put
3895	—LIMELIGHT NETWORKS INC	146,900	$524K	0.78%	Call
3896	PZZAPAPA JOHNS INTL INC	5,903	$523K	0.77%
3897	—CORELOGIC INC	6,600	$523K	0.77%	Put
3898	ESNTESSENT GROUP LTD	11,000	$522K	0.77%	Call
3899	CTRACABOT OIL & GAS CORP	27,799	$522K	0.77%
3900	REVEURREVLON INC	42,302	$522K	0.77%

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