GROUP ONE TRADING LLC Q1 2018 Filing

Filed May 11, 2018

Portfolio Value

$10.5M

Holdings

4,806

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (4,806 positions)

#	Stock	Shares	Value	% Portfolio	Type
3601	HTLDHEARTLAND EXPRESS INC	3,300	$59K	0.56%	Call
3602	ACHCACADIA HEALTHCARE COMPANY IN	1,500	$59K	0.56%	Put
3603	ADTADT INC	7,399	$59K	0.56%
3604	—CHART INDS INC	1,000	$59K	0.56%	Call
3605	HSYHERSHEY CO	600	$59K	0.56%	Put
3606	LENLENNAR CORP	1,000	$59K	0.56%	Call
3607	SRCLSTERICYCLE INC	1,000	$59K	0.56%
3608	HTLDEXPRESS INC	8,205	$59K	0.56%
3609	—ATARA BIOTHERAPEUTICS INC	1,500	$59K	0.56%	Call
3610	—IMMUNE DESIGN CORP	17,594	$58K	0.55%
3611	—RICE MIDSTREAM PARTNERS LP	3,200	$58K	0.55%	Put
3612	AMTAMERICAN TOWER CORP NEW	400	$58K	0.55%	Call
3613	—CBL & ASSOC PPTYS INC	14,003	$58K	0.55%
3614	ALDXALDEYRA THERAPEUTICS INC	7,700	$58K	0.55%	Call
3615	MIKUSDMICHAELS COS INC	2,966	$58K	0.55%
3616	LVSLAS VEGAS SANDS CORP	806	$58K	0.55%
3617	—FRONT YD RESIDENTIAL CORP	5,800	$58K	0.55%	Put
3618	—UTSTARCOM HOLDINGS CORP	11,800	$58K	0.55%	Call
3619	—CHINA INFORMATION TECHNOLOGY	32,300	$58K	0.55%	Call
3620	—INVITAE CORP	12,300	$58K	0.55%	Put
3621	CVSCVS HEALTH CORP	933	$58K	0.55%
3622	—PROSHARES TR II	2,100	$58K	0.55%	Put
3623	—SYNCHRONOSS TECHNOLOGIES INC	5,400	$57K	0.54%	Call
3624	SENSSENSEONICS HLDGS INC	19,100	$57K	0.54%	Call
3625	TDTORONTO DOMINION BK ONT	1,000	$57K	0.54%	Put
3626	INVAINNOVIVA INC	3,400	$57K	0.54%	Call
3627	IRWDIRONWOOD PHARMACEUTICALS INC	3,696	$57K	0.54%
3628	SPPIUSDSPECTRUM PHARMACEUTICALS INC	3,526	$57K	0.54%
3629	YEXTYEXT INC	4,500	$57K	0.54%	Call
3630	—MARATHON PATENT GROUP INC	50,700	$57K	0.54%	Call
3631	ALLALLSTATE CORP	600	$57K	0.54%	Put
3632	—VASCULAR BIOGENICS LTD	24,800	$57K	0.54%	Call
3633	—COOPER TIRE & RUBR CO	1,939	$57K	0.54%
3634	XIFRNEXTERA ENERGY PARTNERS LP	1,400	$56K	0.53%	Call
3635	CHRWC H ROBINSON WORLDWIDE INC	600	$56K	0.53%	Put
3636	SIMOSILICON MOTION TECHNOLOGY CO	1,172	$56K	0.53%
3637	GSATGLOBALSTAR INC	81,900	$56K	0.53%	Put
3638	ATENA10 NETWORKS INC	9,700	$56K	0.53%	Put
3639	—EMERGE ENERGY SVCS LP	9,096	$56K	0.53%
3640	WKCWORLD FUEL SVCS CORP	2,300	$56K	0.53%
3641	—ABRAXAS PETE CORP	25,200	$56K	0.53%	Call
3642	CYHCOMMUNITY HEALTH SYS INC NEW	14,200	$56K	0.53%	Put
3643	IOUSDION GEOPHYSICAL CORP	2,068	$56K	0.53%
3644	AMKRAMKOR TECHNOLOGY INC	5,400	$55K	0.52%	Call
3645	CXWCORECIVIC INC	2,800	$55K	0.52%	Put
3646	—ABLYNX NV	1,000	$55K	0.52%	Call
3647	—CENTENNIAL RESOURCE DEV INC	3,000	$55K	0.52%	Call
3648	—AEROHIVE NETWORKS INC	13,506	$55K	0.52%
3649	CRONCRONOS GROUP INC	8,121	$55K	0.52%
3650	LOCOEL POLLO LOCO HLDGS INC	5,808	$55K	0.52%
3651	ARAYACCURAY INC	10,900	$55K	0.52%	Put
3652	—NABRIVA THERAPEUTICS PLC	10,700	$54K	0.51%	Call
3653	WNCWABASH NATL CORP	2,600	$54K	0.51%	Put
3654	NVRIHARSCO CORP	2,600	$54K	0.51%	Call
3655	CCXIEURCHEMOCENTRYX INC	3,961	$54K	0.51%
3656	TGNATEGNA INC	4,709	$54K	0.51%
3657	PCARPACCAR INC	812	$54K	0.51%
3658	IRDMIRIDIUM COMMUNICATIONS INC	4,800	$54K	0.51%	Put
3659	—CELADON GROUP INC	14,645	$54K	0.51%
3660	—HORNBECK OFFSHORE SVCS INC N	18,400	$54K	0.51%	Call
3661	MVISMICROVISION INC DEL	47,548	$54K	0.51%
3662	PPHMEURAVID BIOSERVICES INC	18,246	$53K	0.50%
3663	—DUKE REALTY CORP	2,000	$53K	0.50%	Call
3664	SNNSMITH & NEPHEW PLC	1,400	$53K	0.50%	Call
3665	ASYSAMTECH SYS INC	7,300	$53K	0.50%	Call
3666	—DEPOMED INC	8,000	$53K	0.50%	Put
3667	ATHMAUTOHOME INC	600	$52K	0.49%	Put
3668	—PACIFIC ETHANOL INC	17,271	$52K	0.49%
3669	—PHOENIX NEW MEDIA LTD	12,000	$52K	0.49%	Put
3670	CWHCAMPING WORLD HLDGS INC	1,600	$52K	0.49%	Call
3671	U6ZURANIUM ENERGY CORP	39,662	$52K	0.49%
3672	—NORTHERN TR CORP	500	$52K	0.49%	Put
3673	—CREE INC	1,300	$52K	0.49%	Put
3674	—PINNACLE ENTMT INC NEW	1,719	$52K	0.49%
3675	LDOSLEIDOS HLDGS INC	800	$52K	0.49%	Put
3676	GOROGOLD RESOURCE CORP	11,400	$51K	0.48%	Call
3677	HHYATT HOTELS CORP	670	$51K	0.48%
3678	NYTNEW YORK TIMES CO	2,100	$51K	0.48%	Put
3679	—QUICKLOGIC CORP	33,700	$51K	0.48%	Call
3680	—NEWFIELD EXPL CO	2,100	$51K	0.48%	Call
3681	—MEDLEY CAP CORP	12,800	$51K	0.48%	Put
3682	YUMYUM BRANDS INC	600	$51K	0.48%	Put
3683	MTSIMACOM TECH SOLUTIONS HLDGS I	3,100	$51K	0.48%	Put
3684	RGNXREGENXBIO INC	1,678	$50K	0.47%
3685	CMCM1EURCHEETAH MOBILE INC	3,712	$50K	0.47%
3686	PJTPJT PARTNERS INC	1,000	$50K	0.47%	Put
3687	BAHBOOZ ALLEN HAMILTON HLDG COR	1,300	$50K	0.47%
3688	—OWENS & MINOR INC NEW	3,200	$50K	0.47%	Put
3689	SJTSAN JUAN BASIN RTY TR	6,300	$50K	0.47%	Call
3690	AXTIAXT INC	6,882	$50K	0.47%
3691	RPREALPAGE INC	953	$49K	0.47%
3692	—DEL TACO RESTAURANTS INC	4,700	$49K	0.47%	Put
3693	HDBHDFC BANK LTD	500	$49K	0.47%	Put
3694	BLMNBLOOMIN BRANDS INC	2,000	$49K	0.47%	Put
3695	BJRIBJS RESTAURANTS INC	1,100	$49K	0.47%	Put
3696	—FANHUA INC	1,800	$49K	0.47%	Put
3697	MCCUSDMEDLEY CAP CORP	12,377	$49K	0.47%
3698	—EVERI HLDGS INC	7,400	$49K	0.47%	Put
3699	—STATOIL ASA	2,055	$49K	0.47%
3700	KURAKURA ONCOLOGY INC	2,600	$49K	0.47%	Put

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