GROUP ONE TRADING LLC Q2 2019 Filing

Filed August 9, 2019

Portfolio Value

$11.1M

Holdings

4,933

Report Date

Q2 2019

Filing Type

13F-HR

All Holdings (4,933 positions)

#	Stock	Shares	Value	% Portfolio	Type
3701	MASMASCO CORP	1,500	$59K	0.53%	Put
3702	—ACTUANT CORP	2,364	$59K	0.53%
3703	ANAUTONATION INC	1,400	$59K	0.53%	Call
3704	NCLHNORWEGIAN CRUISE LINE HLDG L	1,100	$59K	0.53%	Call
3705	—CARLYLE GROUP L P	2,600	$59K	0.53%	Put
3706	—TOCAGEN INC	8,700	$58K	0.52%	Put
3707	—ACACIA RESH CORP	19,500	$58K	0.52%	Put
3708	—GOLDEN STAR RES LTD CDA	14,400	$58K	0.52%	Put
3709	LKQ1LKQ CORP	2,162	$58K	0.52%
3710	IBKRINTERACTIVE BROKERS GROUP IN	1,072	$58K	0.52%
3711	EBEVENTBRITE INC	3,600	$58K	0.52%	Call
3712	ENRENERGIZER HLDGS INC NEW	1,500	$58K	0.52%
3713	—ADAMIS PHARMACEUTICALS CORP	44,800	$58K	0.52%	Put
3714	ALDXALDEYRA THERAPEUTICS INC	9,600	$58K	0.52%	Put
3715	KDPKEURIG DR PEPPER INC	2,000	$58K	0.52%	Put
3716	—COMPANIA DE MINAS BUENAVENTU	3,500	$58K	0.52%	Put
3717	LXLEXINFINTECH HLDGS LTD	5,183	$58K	0.52%
3718	—GCP APPLIED TECHNOLOGIES INC	2,500	$57K	0.52%	Call
3719	—ORBCOMM INC	7,900	$57K	0.52%	Call
3720	PJTPJT PARTNERS INC	1,400	$57K	0.52%	Call
3721	—NATUS MEDICAL INC DEL	2,210	$57K	0.52%
3722	LXRXLEXICON PHARMACEUTICALS INC	9,000	$57K	0.52%	Put
3723	FLXNFLEXION THERAPEUTICS INC	4,648	$57K	0.52%
3724	—UNITED NAT FOODS INC	6,300	$57K	0.52%	Call
3725	GLREGREENLIGHT CAPITAL RE LTD	6,600	$56K	0.51%	Call
3726	—PIER 1 IMPORTS INC	7,400	$56K	0.51%	Put
3727	—TRIVAGO N V	13,200	$56K	0.51%	Call
3728	OMEXODYSSEY MARINE EXPLORATION I	9,600	$56K	0.51%	Call
3729	BCCBOISE CASCADE CO DEL	2,000	$56K	0.51%	Put
3730	CYHCOMMUNITY HEALTH SYS INC NEW	20,900	$56K	0.51%	Call
3731	—IDERA PHARMACEUTICALS INC	20,998	$56K	0.51%
3732	ALSNALLISON TRANSMISSION HLDGS I	1,200	$56K	0.51%
3733	SNDXSYNDAX PHARMACEUTICALS INC	6,000	$56K	0.51%	Put
3734	CHKPCHECK POINT SOFTWARE TECH LT	478	$55K	0.50%
3735	—COMMSCOPE HLDG CO INC	3,500	$55K	0.50%	Call
3736	CRWDCROWDSTRIKE HLDGS INC	803	$55K	0.50%
3737	—GROUPON INC	15,400	$55K	0.50%	Put
3738	—DIAMOND OFFSHORE DRILLING IN	6,200	$55K	0.50%	Call
3739	—NEW YORK MTG TR INC	8,800	$55K	0.50%	Call
3740	TEFOFTELEFONIC A S A	6,600	$55K	0.50%	Call
3741	—CABOT MICROELECTRONICS CORP	500	$55K	0.50%	Put
3742	MYGNMYRIAD GENETICS INC	1,991	$55K	0.50%
3743	—H & E EQUIPMENT SERVICES INC	1,900	$55K	0.50%	Call
3744	SEISOLARIS OILFIELD INFRSTR INC	3,700	$55K	0.50%	Call
3745	BYDBOYD GAMING CORP	2,048	$55K	0.50%
3746	—NANOSTRING TECHNOLOGIES INC	1,800	$55K	0.50%	Put
3747	ALLOALLOGENE THERAPEUTICS INC	2,000	$54K	0.49%	Call
3748	—YRC WORLDWIDE INC	13,300	$54K	0.49%	Put
3749	CENTCENTRAL GARDEN & PET CO	2,000	$54K	0.49%	Call
3750	NMPGYNAVIOS MARITIME HLDGS INC	12,043	$54K	0.49%
3751	HMCHONDA MOTOR LTD	2,100	$54K	0.49%	Put
3752	—VOCERA COMMUNICATIONS INC	1,700	$54K	0.49%	Call
3753	BNSBANK N S HALIFAX	1,000	$54K	0.49%	Put
3754	CGENCOMPUGEN LTD	14,117	$54K	0.49%
3755	SBSAFE BULKERS INC	34,100	$53K	0.48%	Call
3756	ACMAECOM	1,400	$53K	0.48%	Call
3757	—QUOTIENT LTD	5,679	$53K	0.48%
3758	PLUNPLUG POWER INC	23,576	$53K	0.48%
3759	UFIUNIFI INC	2,900	$53K	0.48%	Call
3760	HESMHESS MIDSTREAM PARTNERS LP	2,712	$53K	0.48%
3761	SIEBSIEBERT FINL CORP	5,781	$52K	0.47%
3762	—CORE LABORATORIES N V	1,000	$52K	0.47%	Put
3763	XCAFXMORGAN STANLEY CHINA A SH FD	2,400	$52K	0.47%
3764	—AXA EQUITABLE HLDGS INC	2,502	$52K	0.47%
3765	KPTIEURKARYOPHARM THERAPEUTICS INC	8,698	$52K	0.47%
3766	—CENTENNIAL RESOURCE DEV INC	6,900	$52K	0.47%	Put
3767	DLTHDULUTH HLDGS INC	3,800	$52K	0.47%	Put
3768	—SPECTRUM PHARMACEUTICALS INC	6,000	$52K	0.47%	Put
3769	—FLEXION THERAPEUTICS INC	4,200	$52K	0.47%	Call
3770	NAKNORTHERN DYNASTY MINERALS LT	86,900	$52K	0.47%	Put
3771	—MAG SILVER CORP	4,900	$52K	0.47%	Put
3772	DNOWNOW INC	3,500	$52K	0.47%
3773	—EAGLE BULK SHIPPING INC	10,000	$52K	0.47%	Put
3774	PEPPEPSICO INC	400	$52K	0.47%	Call
3775	IVPEFISHARES INC	1,000	$51K	0.46%	Call
3776	—TSAKOS ENERGY NAVIGATION LTD	15,600	$51K	0.46%
3777	—MOMENTA PHARMACEUTICALS INC	4,100	$51K	0.46%	Call
3778	FIVNFIVE9 INC	1,000	$51K	0.46%	Put
3779	—LSC COMMUNICATIONS INC	13,900	$51K	0.46%	Call
3780	—AFFIMED N V	17,600	$51K	0.46%	Put
3781	ALLALLSTATE CORP	500	$51K	0.46%	Put
3782	GSMFERROGLOBE PLC	30,004	$51K	0.46%
3783	CELHCELSIUS HOLDINGS INC	11,400	$51K	0.46%	Call
3784	TUSKMAMMOTH ENERGY SVCS INC	7,368	$51K	0.46%
3785	—HIGHPOINT RES CORP	27,789	$51K	0.46%
3786	—LYON WILLIAM HOMES	2,800	$51K	0.46%	Put
3787	—WESTERN ASSET MTG CAP CORP	5,000	$50K	0.45%	Put
3788	—RITCHIE BROS AUCTIONEERS	1,500	$50K	0.45%	Call
3789	PEPPEPSICO INC	380	$50K	0.45%
3790	NVTNVENT ELECTRIC PLC	2,000	$50K	0.45%	Put
3791	—AMERICAN OUTDOOR BRANDS CORP	5,600	$50K	0.45%	Call
3792	BHRBRAEMAR HOTELS & RESORTS INC	5,000	$50K	0.45%	Call
3793	SBLKSTAR BULK CARRIERS CORP	5,165	$50K	0.45%
3794	TTS1EURTILE SHOP HLDGS INC	12,480	$50K	0.45%
3795	CRNTCERAGON NETWORKS LTD	16,964	$50K	0.45%
3796	—TEEKAY CORPORATION	14,600	$50K	0.45%	Put
3797	PXLWEURPIXELWORKS INC	16,899	$50K	0.45%
3798	—GSV CAP CORP	7,800	$50K	0.45%	Put
3799	—MFA FINL INC	7,000	$50K	0.45%	Put
3800	—ON DECK CAP INC	11,974	$50K	0.45%

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