GROUP ONE TRADING LLC Q4 2018 Filing

Filed February 6, 2019

Portfolio Value

$11.5M

Holdings

4,844

Report Date

Q4 2018

Filing Type

13F-HR

All Holdings (4,844 positions)

#	Stock	Shares	Value	% Portfolio	Type
3701	—ETFIS SER TR I	8,000	$40K	0.35%	Call
3702	—ROSETTA STONE INC	2,423	$40K	0.35%
3703	—SORL AUTO PTS INC	21,072	$40K	0.35%
3704	—EAGLE BULK SHIPPING INC	8,621	$40K	0.35%
3705	—ANTERO MIDSTREAM GP LP	3,600	$40K	0.35%
3706	MGPIMGP INGREDIENTS INC NEW	698	$40K	0.35%
3707	—GASLOG LTD	2,391	$39K	0.34%
3708	TEXTEREX CORP NEW	1,400	$39K	0.34%	Call
3709	—BRIGHTCOVE INC	5,600	$39K	0.34%	Call
3710	—RENREN INC	25,300	$39K	0.34%	Put
3711	—DAVIDSTEA INC	33,000	$39K	0.34%	Call
3712	—AXOVANT SCIENCES LTD	38,800	$39K	0.34%	Call
3713	MOVMOVADO GROUP INC	1,248	$39K	0.34%
3714	—STONEMOR PARTNERS L P	18,300	$38K	0.33%	Put
3715	HOGHARLEY DAVIDSON INC	1,100	$38K	0.33%	Put
3716	ARESARES MANAGEMENT CORPORATION	2,163	$38K	0.33%
3717	—HD SUPPLY HLDGS INC	100	$38K	0.33%	Call
3718	DHID R HORTON INC	1,100	$38K	0.33%	Put
3719	—CONATUS PHARMACEUTICALS INC	21,700	$38K	0.33%	Call
3720	BECNUSDBEACON ROOFING SUPPLY INC	1,187	$38K	0.33%
3721	—WESTERN GAS EQUITY PARTNERS	1,373	$38K	0.33%
3722	—STEMLINE THERAPEUTICS INC	4,000	$38K	0.33%	Put
3723	OPYOPPENHEIMER HLDGS INC	1,499	$38K	0.33%
3724	KRNTKORNIT DIGITAL LTD	2,036	$38K	0.33%
3725	—STEMLINE THERAPEUTICS INC	4,000	$38K	0.33%	Call
3726	CTSOCYTOSORBENTS CORP	4,664	$38K	0.33%
3727	—NXSTAGE MEDICAL INC	1,322	$38K	0.33%
3728	—CARBON BLACK INC	2,855	$38K	0.33%
3729	—NII HLDGS INC	8,700	$38K	0.33%	Put
3730	TSTENARIS S A	1,800	$38K	0.33%	Put
3731	—AFFIMED N V	12,287	$38K	0.33%
3732	CMCCOMMERCIAL METALS CO	2,303	$37K	0.32%
3733	—THL CREDIT INC	6,100	$37K	0.32%	Put
3734	—INFINITY PHARMACEUTICALS INC	31,300	$37K	0.32%	Call
3735	AVXLANAVEX LIFE SCIENCES CORP	23,800	$37K	0.32%	Call
3736	CAPLCROSSAMERICA PARTNERS LP	2,600	$37K	0.32%	Put
3737	—BONANZA CREEK ENERGY INC	1,800	$37K	0.32%	Call
3738	MMYTMAKEMYTRIP LIMITED MAURITIUS	1,501	$37K	0.32%
3739	AXGNAXOGEN INC	1,800	$37K	0.32%	Put
3740	SWCHFSIERRA WIRELESS INC	2,744	$37K	0.32%
3741	—WASHINGTON PRIME GROUP NEW	7,600	$37K	0.32%	Call
3742	BTGB2GOLD CORP	12,800	$37K	0.32%	Call
3743	LABFLUIDIGM CORP DEL	4,300	$37K	0.32%	Call
3744	—FLEETCOR TECHNOLOGIES INC	200	$37K	0.32%	Call
3745	OMEXODYSSEY MARINE EXPLORATION I	11,253	$37K	0.32%
3746	—PVH CORP	400	$37K	0.32%	Call
3747	MERCMERCER INTL INC	3,500	$37K	0.32%	Call
3748	FISVFISERV INC	500	$37K	0.32%	Put
3749	AXSAXIS CAPITAL HOLDINGS LTD	700	$36K	0.31%	Call
3750	—SHELL MIDSTREAM PARTNERS L P	2,200	$36K	0.31%	Put
3751	BENFRANKLIN RES INC	1,200	$36K	0.31%	Put
3752	—SPECTRUM PHARMACEUTICALS INC	4,100	$36K	0.31%	Put
3753	EXREXTRA SPACE STORAGE INC	400	$36K	0.31%	Call
3754	BCLIEURBRAINSTORM CELL THERAPEUTICS	10,067	$36K	0.31%
3755	CNXCNX RESOURCES CORPORATION	3,113	$36K	0.31%
3756	WABWABTEC CORP	518	$36K	0.31%
3757	SJTSAN JUAN BASIN RTY TR	7,442	$36K	0.31%
3758	—TALLGRASS ENERGY LP	1,470	$36K	0.31%
3759	CNKCINEMARK HOLDINGS INC	8,300	$36K	0.31%	Call
3760	—EASTERLY GOVT PPTYS INC	2,300	$36K	0.31%	Put
3761	AWIARMSTRONG WORLD INDS INC NEW	619	$36K	0.31%
3762	—SPIRIT AIRLS INC	600	$35K	0.30%	Put
3763	PRGSPROGRESS SOFTWARE CORP	1,000	$35K	0.30%	Call
3764	—MEDICAL PPTYS TRUST INC	2,200	$35K	0.30%	Put
3765	—SRC ENERGY INC	7,437	$35K	0.30%
3766	—BJS WHSL CLUB HLDGS INC	1,600	$35K	0.30%	Put
3767	—CAI INTERNATIONAL INC	1,510	$35K	0.30%
3768	—PLURALSIGHT INC	1,500	$35K	0.30%
3769	—SWITCH INC	5,000	$35K	0.30%	Put
3770	WPPWPP PLC NEW	633	$35K	0.30%
3771	—CAI INTERNATIONAL INC	1,500	$35K	0.30%	Put
3772	SMSISMITH MICRO SOFTWARE INC	19,191	$35K	0.30%
3773	PUKNPRUDENTIAL PLC	1,000	$35K	0.30%
3774	STAASTAAR SURGICAL CO	1,100	$35K	0.30%	Call
3775	MXMAGNACHIP SEMICONDUCTOR CORP	5,600	$35K	0.30%	Put
3776	APPSDIGITAL TURBINE INC	19,300	$35K	0.30%	Call
3777	—EXPEDITORS INTL WASH INC	500	$34K	0.29%	Call
3778	—ACHAOGEN INC	28,000	$34K	0.29%	Call
3779	TKCTURKCELL ILETISIM HIZMETLERI	6,000	$34K	0.29%	Put
3780	CAMPEURCALAMP CORP	2,600	$34K	0.29%
3781	GPMTGRANITE PT MTG TR INC	1,901	$34K	0.29%
3782	ZTSZOETIS INC	400	$34K	0.29%
3783	—BELLICUM PHARMACEUTICALS INC	11,800	$34K	0.29%	Call
3784	—CALADRIUS BIOSCIENCES INC	9,500	$34K	0.29%	Put
3785	—GOLDEN STAR RES LTD CDA	10,906	$34K	0.29%
3786	SPGIS&P GLOBAL INC	200	$34K	0.29%	Put
3787	TRMBTRIMBLE INC	1,000	$33K	0.29%
3788	—NYMOX PHARMACEUTICAL CORP	24,900	$33K	0.29%	Call
3789	INOINOVIO PHARMACEUTICALS INC	8,324	$33K	0.29%
3790	MRKRMARKER THERAPEUTICS INC	6,000	$33K	0.29%	Call
3791	AMKRAMKOR TECHNOLOGY INC	5,100	$33K	0.29%	Call
3792	—CONTANGO OIL & GAS COMPANY	10,100	$33K	0.29%	Call
3793	LXRXLEXICON PHARMACEUTICALS INC	5,000	$33K	0.29%	Call
3794	AMCXAMC NETWORKS INC	600	$33K	0.29%	Call
3795	KMTKENNAMETAL INC	1,000	$33K	0.29%	Call
3796	CCKCROWN HOLDINGS INC	800	$33K	0.29%	Put
3797	—REMARK HLDGS INC	27,300	$33K	0.29%	Put
3798	ENTGENTEGRIS INC	1,200	$33K	0.29%	Put
3799	IVPEFISHARES INC	700	$33K	0.29%	Call
3800	—ALDER BIOPHARMACEUTICALS INC	3,100	$32K	0.28%	Call

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