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
501	PENGSMART GLOBAL HLDGS INC	16,958	$540K	4.62%
502	—ROYAL DUTCH SHELL PLC	7,400	$538K	4.60%	Call
503	—AMIRA NATURE FOODS LTD	242,100	$537K	4.59%	Put
504	BWXTBWX TECHNOLOGIES INC	8,600	$536K	4.58%	Put
505	INTCINTEL CORP	10,781	$536K	4.58%
506	—ENDO INTL PLC	56,762	$535K	4.58%
507	AMATAPPLIED MATLS INC	11,576	$535K	4.58%
508	—XL GROUP LTD	9,500	$532K	4.55%	Call
509	SASEABRIDGE GOLD INC	47,700	$532K	4.55%	Put
510	GKOSGLAUKOS CORP	13,100	$532K	4.55%	Call
511	INFNEURINFINERA CORPORATION	53,590	$532K	4.55%
512	DXCMDEXCOM INC	5,600	$532K	4.55%	Call
513	IACIEURIAC INTERACTIVECORP	3,483	$531K	4.54%
514	—SKECHERS U S A INC	17,700	$531K	4.54%	Call
515	SDSANDRIDGE ENERGY INC	29,800	$529K	4.52%	Call
516	UNMUNUM GROUP	14,300	$529K	4.52%
517	—VARONIS SYS INC	7,100	$529K	4.52%	Call
518	—ULTRA PETROLEUM CORP	228,845	$529K	4.52%
519	—ROCKWELL MED INC	107,100	$528K	4.52%	Call
520	WRKUSDWESTROCK CO	9,226	$526K	4.50%
521	—EVERI HLDGS INC	73,000	$526K	4.50%	Put
522	WCGEURWELLCARE HEALTH PLANS INC	2,132	$525K	4.49%
523	—CONSTELLIUM NV	50,800	$523K	4.47%	Call
524	—PACIFIC COAST OIL TR	227,300	$523K	4.47%	Call
525	MPAAMOTORCAR PTS AMER INC	27,911	$522K	4.46%
526	—WNS HOLDINGS LTD	10,000	$522K	4.46%	Put
527	MEDMEDIFAST INC	3,254	$521K	4.46%
528	HXLHEXCEL CORP NEW	7,840	$520K	4.45%
529	—TC PIPELINES LP	20,000	$519K	4.44%	Put
530	ADNTADIENT PLC	10,550	$519K	4.44%
531	—ROSETTA STONE INC	32,293	$518K	4.43%
532	—MIRATI THERAPEUTICS INC	10,500	$518K	4.43%	Call
533	—DOMINION ENERGY MIDSTRM PRTN	38,100	$518K	4.43%	Call
534	—SAILPOINT TECHNLGIES HLDGS I	21,100	$518K	4.43%	Call
535	—SPECTRA ENERGY PARTNERS LP	14,566	$516K	4.41%
536	—BLUE APRON HLDGS INC	153,659	$515K	4.40%
537	B7SBROOKDALE SR LIVING INC	56,685	$515K	4.40%
538	BBDBANCO BRADESCO S A	75,100	$515K	4.40%	Put
539	GTNGRAY TELEVISION INC	32,500	$514K	4.40%	Put
540	VFCV F CORP	6,300	$514K	4.40%	Call
541	—OBSIDIAN ENERGY LTD	453,811	$513K	4.39%
542	GLWCORNING INC	18,600	$512K	4.38%	Put
543	—HIGHWOODS PPTYS INC	10,100	$512K	4.38%	Call
544	—PROGENICS PHARMACEUTICALS IN	63,566	$511K	4.37%
545	CXOEURCONCHO RES INC	3,697	$511K	4.37%
546	—CNH INDL N V	48,500	$511K	4.37%	Call
547	FATEFATE THERAPEUTICS INC	45,000	$510K	4.36%	Put
548	ADPAUTOMATIC DATA PROCESSING IN	3,800	$510K	4.36%	Put
549	—ATHENAHEALTH INC	3,200	$509K	4.35%	Put
550	CARSCARS COM INC	17,900	$508K	4.34%	Call
551	FLEXFLEX LTD	35,900	$507K	4.34%	Call
552	—MARINUS PHARMACEUTICALS INC	71,600	$506K	4.33%	Put
553	—ULTRA PETROLEUM CORP	219,000	$506K	4.33%	Put
554	—KEMET CORP	20,872	$504K	4.31%
555	—LKQ CORP	15,800	$504K	4.31%	Call
556	VCVISTEON CORP	3,900	$504K	4.31%	Call
557	NGNOVAGOLD RES INC	112,810	$502K	4.29%
558	—SPIRIT AIRLS INC	13,800	$502K	4.29%	Call
559	—MCEWEN MNG INC	242,700	$502K	4.29%	Call
560	SEESEALED AIR CORP NEW	11,778	$500K	4.28%
561	—ENDURANCE INTL GROUP HLDGS I	50,300	$500K	4.28%	Put
562	—SEADRILL LIMITED	2,327,800	$500K	4.28%	Call
563	PHPARKER HANNIFIN CORP	3,200	$499K	4.27%	Call
564	—SPECTRA ENERGY PARTNERS LP	14,100	$499K	4.27%	Call
565	WFRDWEATHERFORD INTL PLC	151,724	$499K	4.27%
566	FFIVF5 NETWORKS INC	2,892	$499K	4.27%
567	MPLXMPLX LP	14,583	$498K	4.26%
568	PPTPREMIER INC	13,700	$498K	4.26%	Call
569	ZNGAEURZYNGA INC	122,173	$497K	4.25%
570	FLOFLOWERS FOODS INC	23,800	$496K	4.24%	Call
571	KMXCARMAX INC	6,800	$496K	4.24%	Put
572	—CONVERGYS CORP	20,300	$496K	4.24%	Call
573	RUNSUNRUN INC	37,700	$496K	4.24%	Put
574	—CLEARSIDE BIOMEDICAL INC	46,300	$495K	4.23%	Put
575	—GTT COMMUNICATIONS INC	11,000	$495K	4.23%	Call
576	GDDYGODADDY INC	7,000	$494K	4.22%	Call
577	—CENTURY CMNTYS INC	15,600	$492K	4.21%	Put
578	—MANULIFE FINL CORP	27,300	$491K	4.20%	Call
579	CRSPCRISPR THERAPEUTICS AG	8,361	$491K	4.20%
580	—UNIVERSAL INS HLDGS INC	14,000	$491K	4.20%	Call
581	ALRMALARM COM HLDGS INC	12,163	$491K	4.20%
582	ATENA10 NETWORKS INC	78,500	$489K	4.18%	Put
583	—GLOBUS MED INC	9,700	$489K	4.18%	Call
584	NUENUCOR CORP	7,800	$488K	4.17%	Call
585	GPKGRAPHIC PACKAGING HLDG CO	33,600	$488K	4.17%	Call
586	—PIVOTAL SOFTWARE INC	20,100	$488K	4.17%	Put
587	—ZUORA INC	17,900	$487K	4.16%	Call
588	—180 DEGREE CAP CORP	210,900	$487K	4.16%	Call
589	—RENREN INC	197,257	$487K	4.16%
590	YRDYIRENDAI LTD	22,900	$486K	4.16%	Put
591	5TCTRUECAR INC	48,126	$486K	4.16%
592	ACIWACI WORLDWIDE INC	19,700	$486K	4.16%	Call
593	NLYEURANNALY CAP MGMT INC	47,216	$486K	4.16%
594	RGENREPLIGEN CORP	10,300	$485K	4.15%	Call
595	ALKSALKERMES PLC	11,785	$485K	4.15%
596	—JUPAI HLDGS LTD	25,589	$484K	4.14%
597	STWDSTARWOOD PPTY TR INC	22,282	$484K	4.14%
598	—BASIC ENERGY SVCS INC NEW	43,444	$483K	4.13%
599	—T2 BIOSYSTEMS INC	62,400	$483K	4.13%	Call
600	DHTDHT HOLDINGS INC	102,800	$482K	4.12%	Put

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