GROUP ONE TRADING LLC Q1 2019 Filing

Filed May 13, 2019

Portfolio Value

$16.7M

Holdings

4,769

Report Date

Q1 2019

Filing Type

13F-HR

All Holdings (4,769 positions)

#	Stock	Shares	Value	% Portfolio	Type
2901	—HABIT RESTAURANTS INC	14,200	$154K	0.92%	Put
2902	KEYKEYCORP NEW	9,800	$154K	0.92%	Put
2903	WEXWEX INC	800	$154K	0.92%	Put
2904	—NII HLDGS INC	78,000	$153K	0.92%	Put
2905	—ENABLE MIDSTREAM PARTNERS LP	10,696	$153K	0.92%
2906	PRTY1EURPARTY CITY HOLDCO INC	19,285	$153K	0.92%
2907	AAPLAPPLE INC	800	$152K	0.91%	Put
2908	—PIONEER NAT RES CO	1,000	$152K	0.91%	Put
2909	—ASSEMBLY BIOSCIENCES INC	7,700	$152K	0.91%	Put
2910	—EAGLE BULK SHIPPING INC	32,600	$152K	0.91%	Call
2911	—ATLANTIC PWR CORP	59,900	$151K	0.91%	Call
2912	SNPUSDCHINA PETE & CHEM CORP	1,900	$151K	0.91%
2913	—EAGLE PHARMACEUTICALS INC	3,000	$151K	0.91%	Call
2914	HBANHUNTINGTON BANCSHARES INC	11,900	$151K	0.91%	Call
2915	PCARPACCAR INC	2,200	$150K	0.90%	Call
2916	—MGIC INVT CORP WIS	11,400	$150K	0.90%	Call
2917	GLOBGLOBANT S A	2,100	$150K	0.90%	Call
2918	SIGASIGA TECHNOLOGIES INC	25,000	$150K	0.90%	Call
2919	BALLBALL CORP	2,600	$150K	0.90%	Call
2920	—GNC HLDGS INC	55,100	$150K	0.90%	Call
2921	UNHUNITEDHEALTH GROUP INC	603	$149K	0.89%
2922	TKCTURKCELL ILETISIM HIZMETLERI	27,801	$149K	0.89%
2923	—DBV TECHNOLOGIES S A	19,200	$148K	0.89%	Call
2924	BLDRBUILDERS FIRSTSOURCE INC	11,062	$148K	0.89%
2925	SEDGSOLAREDGE TECHNOLOGIES INC	3,931	$148K	0.89%
2926	—PREFERRED APT CMNTYS INC	10,000	$148K	0.89%	Put
2927	—BEACON ROOFING SUPPLY INC	4,600	$148K	0.89%	Call
2928	CNKCINEMARK HOLDINGS INC	3,700	$148K	0.89%	Call
2929	OMEXODYSSEY MARINE EXPLORATION I	20,500	$147K	0.88%	Put
2930	—GAIN CAP HLDGS INC	23,400	$147K	0.88%	Call
2931	—SANDRIDGE PERMIAN TR	62,000	$147K	0.88%	Call
2932	LTHM1EURLIVENT CORP	11,999	$147K	0.88%
2933	—BLACK KNIGHT INC	2,700	$147K	0.88%	Put
2934	—LIONS GATE ENTMNT CORP	9,400	$147K	0.88%	Put
2935	—MEDIDATA SOLUTIONS INC	2,000	$146K	0.88%	Put
2936	UISUNISYS CORP	12,500	$146K	0.88%	Put
2937	CXWCORECIVIC INC	7,500	$146K	0.88%	Call
2938	CODICOMPASS DIVERSIFIED HOLDINGS	9,300	$146K	0.88%	Call
2939	—ADAMIS PHARMACEUTICALS CORP	69,400	$146K	0.88%	Put
2940	CPE3EURCALLON PETE CO DEL	19,380	$146K	0.88%
2941	DHTDHT HOLDINGS INC	32,500	$145K	0.87%	Put
2942	—OLLIES BARGAIN OUTLT HLDGS I	1,700	$145K	0.87%	Call
2943	DHID R HORTON INC	3,500	$145K	0.87%	Put
2944	—COWEN INC	10,000	$145K	0.87%	Put
2945	—ROCKWELL MED INC	25,500	$145K	0.87%	Call
2946	FLEXFLEX LTD	14,500	$145K	0.87%	Call
2947	AMSCAMERICAN SUPERCONDUCTOR CORP	11,300	$145K	0.87%	Put
2948	GILGILDAN ACTIVEWEAR INC	4,000	$144K	0.86%	Put
2949	VERIVERITONE INC	27,600	$144K	0.86%	Call
2950	—VONAGE HLDGS CORP	14,300	$144K	0.86%	Put
2951	—AUDENTES THERAPEUTICS INC	3,700	$144K	0.86%	Call
2952	—ENLINK MIDSTREAM LLC	11,300	$144K	0.86%	Put
2953	NENOBLE CORP PLC	50,139	$144K	0.86%
2954	—PIVOTAL SOFTWARE INC	6,900	$144K	0.86%	Put
2955	HCAHCA HEALTHCARE INC	1,094	$143K	0.86%
2956	DBAINVESCO DB COMMDY INDX TRCK	9,000	$143K	0.86%	Put
2957	EEFTEURONET WORLDWIDE INC	1,000	$143K	0.86%	Call
2958	—LEGG MASON INC	5,200	$142K	0.85%	Call
2959	—LAREDO PETROLEUM INC	45,800	$142K	0.85%	Call
2960	MOHMOLINA HEALTHCARE INC	1,000	$142K	0.85%	Call
2961	YELPYELP INC	4,100	$141K	0.85%	Call
2962	UISUNISYS CORP	12,113	$141K	0.85%
2963	LSCCLATTICE SEMICONDUCTOR CORP	11,800	$141K	0.85%	Put
2964	—INOVALON HLDGS INC	11,300	$140K	0.84%	Put
2965	MVISMICROVISION INC DEL	144,150	$140K	0.84%
2966	VNDAVANDA PHARMACEUTICALS INC	7,600	$140K	0.84%	Put
2967	CCXIEURCHEMOCENTRYX INC	9,979	$139K	0.83%
2968	TDSTELEPHONE & DATA SYS INC	4,500	$138K	0.83%	Put
2969	TELTE CONNECTIVITY LTD	1,705	$138K	0.83%
2970	CLBKCOLUMBIA FINL INC	8,800	$138K	0.83%	Call
2971	MANHMANHATTAN ASSOCS INC	2,508	$138K	0.83%
2972	GSHDGOOSEHEAD INS INC	4,966	$138K	0.83%
2973	—HI-CRUSH PARTNERS LP	30,919	$138K	0.83%
2974	AXONAXON ENTERPRISE INC	2,530	$138K	0.83%
2975	—FITBIT INC	23,300	$138K	0.83%	Call
2976	—ALLSCRIPTS HEALTHCARE SOLUTN	14,400	$137K	0.82%	Call
2977	NPKINEWPARK RES INC	15,000	$137K	0.82%	Call
2978	AEOAMERICAN EAGLE OUTFITTERS IN	6,200	$137K	0.82%	Put
2979	TMOTHERMO FISHER SCIENTIFIC INC	500	$137K	0.82%	Call
2980	RYAMRAYONIER ADVANCED MATLS INC	10,100	$137K	0.82%	Call
2981	THFFFIRST FINL BANCORP OH	5,700	$137K	0.82%	Put
2982	SHAKSHAKE SHACK INC	2,296	$136K	0.82%
2983	—SINA CORP	2,300	$136K	0.82%	Call
2984	AKRACADIA RLTY TR	5,000	$136K	0.82%	Put
2985	—CLEARSIDE BIOMEDICAL INC	98,800	$136K	0.82%	Put
2986	—CHINA BIOLOGIC PRODS HLDGS I	1,493	$136K	0.82%
2987	—ANTARES PHARMA INC	44,400	$135K	0.81%	Call
2988	—DEL FRISCOS RESTAURANT GROUP	21,000	$135K	0.81%	Put
2989	DXCDXC TECHNOLOGY CO	2,100	$135K	0.81%	Put
2990	AXSAXIS CAPITAL HOLDINGS LTD	2,470	$135K	0.81%
2991	TGNATEGNA INC	9,598	$135K	0.81%
2992	—CONSOLIDATED COMM HLDGS INC	12,400	$135K	0.81%	Call
2993	SGRYSURGERY PARTNERS INC	12,000	$135K	0.81%	Call
2994	—MONOLITHIC PWR SYS INC	1,000	$135K	0.81%	Put
2995	—SUNPOWER CORP	20,700	$135K	0.81%	Put
2996	HRBBLOCK H & R INC	5,600	$134K	0.80%	Call
2997	AXAXOS FINL INC	4,600	$133K	0.80%	Call
2998	XEJACCURAY INC	27,980	$133K	0.80%
2999	COWNEURCOWEN INC	9,200	$133K	0.80%
3000	—WPX ENERGY INC	10,126	$133K	0.80%

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