GROUP ONE TRADING LLC Q2 2018 Filing

Filed August 14, 2018

Portfolio Value

$11.7M

Holdings

5,072

Report Date

Q2 2018

Filing Type

13F-HR

All Holdings (5,072 positions)

#	Stock	Shares	Value	% Portfolio	Type
3801	—ORCHID IS CAP INC	9,100	$68K	0.58%	Call
3802	UPLDUPLAND SOFTWARE INC	1,983	$68K	0.58%
3803	—ORGANOVO HLDGS INC	48,405	$68K	0.58%
3804	—MERRIMACK PHARMACEUTICALS IN	13,800	$68K	0.58%	Put
3805	—NEW MTN FIN CORP	5,000	$68K	0.58%	Put
3806	—ARRIS INTL INC	2,800	$68K	0.58%	Call
3807	YRDYIRENDAI LTD	3,200	$68K	0.58%	Call
3808	—ENTERCOM COMMUNICATIONS CORP	9,000	$68K	0.58%	Put
3809	—APPROACH RESOURCES INC	27,695	$68K	0.58%
3810	—TABLEAU SOFTWARE INC	700	$68K	0.58%	Call
3811	—IDERA PHARMACEUTICALS INC	50,500	$67K	0.57%	Call
3812	GEGGEO GROUP INC NEW	2,428	$67K	0.57%
3813	—COMPUTER TASK GROUP INC	8,600	$67K	0.57%	Put
3814	—ORIGIN AGRITECH LIMITED	87,900	$67K	0.57%	Call
3815	—SIERRA WIRELESS INC	4,200	$67K	0.57%	Call
3816	XYLXYLEM INC	1,000	$67K	0.57%	Put
3817	—QUOTIENT LTD	8,300	$67K	0.57%	Call
3818	ZZILLOW GROUP INC	1,100	$66K	0.56%	Put
3819	GSGOLDMAN SACHS GROUP INC	300	$66K	0.56%	Put
3820	—ARATANA THERAPEUTICS INC	15,600	$66K	0.56%	Call
3821	VSATVIASAT INC	1,000	$66K	0.56%	Call
3822	DKLDELEK LOGISTICS PARTNERS LP	2,400	$66K	0.56%	Call
3823	TSTENARIS S A	1,800	$66K	0.56%	Put
3824	—ORBCOMM INC	6,500	$66K	0.56%	Call
3825	—AEROJET ROCKETDYNE HLDGS INC	2,200	$65K	0.56%	Put
3826	AQMSEURAQUA METALS INC	22,475	$65K	0.56%
3827	ALGTALLEGIANT TRAVEL CO	466	$65K	0.56%
3828	—PLATFORM SPECIALTY PRODS COR	5,600	$65K	0.56%	Call
3829	—NEW AGE BEVERAGES CORP	34,800	$65K	0.56%	Call
3830	—VERSARTIS INC	32,200	$65K	0.56%
3831	DBAINVESCO DB COMMDY INDX TRCK	3,700	$65K	0.56%	Put
3832	—VISTA OUTDOOR INC	4,200	$65K	0.56%	Call
3833	—PHOENIX NEW MEDIA LTD	15,200	$65K	0.56%	Put
3834	—POTBELLY CORP	5,000	$65K	0.56%	Call
3835	FNKOFUNKO INC	5,100	$64K	0.55%	Put
3836	DMRCDIGIMARC CORP NEW	2,400	$64K	0.55%	Call
3837	RAREULTRAGENYX PHARMACEUTICAL IN	829	$64K	0.55%
3838	—BITAUTO HLDGS LTD	2,685	$64K	0.55%
3839	—STEMLINE THERAPEUTICS INC	3,966	$64K	0.55%
3840	—VASCULAR BIOGENICS LTD	29,220	$64K	0.55%
3841	FLRFLUOR CORP NEW	1,300	$63K	0.54%	Call
3842	—HOVNANIAN ENTERPRISES INC	38,800	$63K	0.54%	Put
3843	—MACQUARIE INFRASTRUCTURE COR	1,500	$63K	0.54%	Put
3844	—CATALYST BIOSCIENCES INC	5,400	$63K	0.54%	Call
3845	HBMHUDBAY MINERALS INC	11,200	$63K	0.54%	Call
3846	—PGT INNOVATIONS INC	3,000	$63K	0.54%	Put
3847	—PIER 1 IMPORTS INC	26,264	$63K	0.54%
3848	BLDPBALLARD PWR SYS INC NEW	22,024	$63K	0.54%
3849	QTM1EURQUANTUM CORP	28,742	$63K	0.54%
3850	—ICONIX BRAND GROUP INC	107,600	$63K	0.54%	Call
3851	VLYVALLEY NATL BANCORP	5,200	$63K	0.54%	Call
3852	—INVACARE CORP	3,400	$63K	0.54%	Put
3853	SNDRSCHNEIDER NATIONAL INC	2,300	$63K	0.54%	Put
3854	—JACOBS ENGR GROUP INC DEL	1,000	$63K	0.54%	Put
3855	—M D C HLDGS INC	2,000	$62K	0.53%	Call
3856	—DOMTAR CORP	1,300	$62K	0.53%	Put
3857	LVSLAS VEGAS SANDS CORP	806	$62K	0.53%
3858	KFYKORN FERRY INTL	1,000	$62K	0.53%	Call
3859	—CTI BIOPHARMA CORP	12,400	$62K	0.53%	Call
3860	KFYKORN FERRY INTL	1,000	$62K	0.53%	Put
3861	—ENDURANCE INTL GROUP HLDGS I	6,206	$62K	0.53%
3862	—TILE SHOP HLDGS INC	8,100	$62K	0.53%	Put
3863	STAASTAAR SURGICAL CO	2,006	$62K	0.53%
3864	GRMNGARMIN LTD	1,000	$61K	0.52%	Call
3865	RRGBRED ROBIN GOURMET BURGERS IN	1,300	$61K	0.52%	Put
3866	3M4MASIMO CORP	628	$61K	0.52%
3867	SJTSAN JUAN BASIN RTY TR	10,500	$61K	0.52%	Call
3868	—NEVSUN RES LTD	17,700	$61K	0.52%	Put
3869	AGXARGAN INC	1,500	$61K	0.52%	Put
3870	—PACIFIC ETHANOL INC	23,500	$61K	0.52%	Put
3871	—TRUECAR INC	6,000	$61K	0.52%	Call
3872	INSYEURINSYS THERAPEUTICS INC NEW	8,486	$61K	0.52%
3873	WDWALKER & DUNLOP INC	1,100	$61K	0.52%	Call
3874	—WRIGHT MED GROUP N V	2,300	$60K	0.51%	Put
3875	SASEABRIDGE GOLD INC	5,300	$59K	0.50%	Call
3876	MTWMANITOWOC CO INC	2,300	$59K	0.50%	Put
3877	FISVFISERV INC	800	$59K	0.50%	Call
3878	—AMPIO PHARMACEUTICALS INC	26,700	$59K	0.50%	Call
3879	AOSSMITH A O	1,000	$59K	0.50%	Put
3880	—LAZARD LTD	1,200	$59K	0.50%	Put
3881	—LAZARD LTD	1,200	$59K	0.50%	Call
3882	TDTORONTO DOMINION BK ONT	1,000	$58K	0.50%	Put
3883	XYLXYLEM INC	860	$58K	0.50%
3884	—CENTENNIAL RESOURCE DEV INC	3,200	$58K	0.50%	Call
3885	IMAXIMAX CORP	2,600	$58K	0.50%	Put
3886	—LA JOLLA PHARMACEUTICAL CO	2,000	$58K	0.50%	Put
3887	RBBNRIBBON COMMUNICATIONS INC	8,200	$58K	0.50%	Call
3888	YEXTYEXT INC	3,000	$58K	0.50%	Put
3889	—TWO HBRS INVT CORP	3,700	$58K	0.50%	Put
3890	—FANHUA INC	2,000	$57K	0.49%	Call
3891	—ELECTRO SCIENTIFIC INDS	3,600	$57K	0.49%	Put
3892	RGNXREGENXBIO INC	800	$57K	0.49%	Call
3893	—ATLAS AIR WORLDWIDE HLDGS IN	800	$57K	0.49%	Call
3894	TPCTUTOR PERINI CORP	3,087	$57K	0.49%
3895	BHRBRAEMAR HOTELS & RESORTS INC	5,000	$57K	0.49%	Put
3896	SGRYSURGERY PARTNERS INC	3,800	$57K	0.49%	Call
3897	—TETRAPHASE PHARMACEUTICALS I	16,000	$57K	0.49%	Call
3898	WCCWESCO INTL INC	1,000	$57K	0.49%	Call
3899	—ABRAXAS PETE CORP	19,700	$57K	0.49%	Call
3900	—TPI COMPOSITES INC	1,900	$56K	0.48%	Call

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