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
2601	—JACOBS ENGR GROUP INC	3,100	$233K	1.40%	Put
2602	ABGAMERISOURCEBERGEN CORP	2,924	$233K	1.40%
2603	KOSKOSMOS ENERGY LTD	37,300	$232K	1.39%	Call
2604	CLCOLGATE PALMOLIVE CO	3,377	$231K	1.39%
2605	—TRANSENTERIX INC	97,039	$231K	1.39%
2606	MBTGBPMOBILE TELESYSTEMS PJSC	30,510	$231K	1.39%
2607	DLTRDOLLAR TREE INC	2,198	$231K	1.39%
2608	—COMPANIA DE MINAS BUENAVENTU	13,300	$230K	1.38%	Call
2609	PPCPILGRIMS PRIDE CORP NEW	10,300	$230K	1.38%	Call
2610	—COLONY CAP INC NEW	43,000	$229K	1.37%	Call
2611	HLIHOULIHAN LOKEY INC	5,000	$229K	1.37%	Put
2612	OLEDUNIVERSAL DISPLAY CORP	1,500	$229K	1.37%	Put
2613	—PARTY CITY HOLDCO INC	28,700	$228K	1.37%	Put
2614	NKTRNEKTAR THERAPEUTICS	6,800	$228K	1.37%	Call
2615	FQIDIGITAL RLTY TR INC	1,919	$228K	1.37%
2616	EEFTEURONET WORLDWIDE INC	1,600	$228K	1.37%	Put
2617	REIRING ENERGY INC	38,800	$228K	1.37%	Call
2618	—GMS INC	15,100	$228K	1.37%	Put
2619	ZTOZTO EXPRESS CAYMAN INC	12,444	$227K	1.36%
2620	LAURLAUREATE EDUCATION INC	15,100	$226K	1.36%	Put
2621	OLLIOLLIES BARGAIN OUTLT HLDGS I	2,651	$226K	1.36%
2622	—AMERIGAS PARTNERS L P	7,300	$225K	1.35%	Call
2623	KSUEURKANSAS CITY SOUTHERN	1,935	$224K	1.34%
2624	XXII22ND CENTY GROUP INC	131,073	$224K	1.34%
2625	—AMAG PHARMACEUTICALS INC	17,400	$224K	1.34%	Put
2626	LFCUSDCHINA LIFE INS CO LTD	16,705	$224K	1.34%
2627	—FORTUNA SILVER MINES INC	66,900	$224K	1.34%	Call
2628	—BLUE APRON HLDGS INC	227,800	$223K	1.34%	Call
2629	CORTCORCEPT THERAPEUTICS INC	19,000	$223K	1.34%	Call
2630	—ECHO GLOBAL LOGISTICS INC	9,000	$223K	1.34%	Put
2631	XNETXUNLEI LTD	60,846	$223K	1.34%
2632	MUMICRON TECHNOLOGY INC	5,385	$223K	1.34%
2633	—NATIONAL INSTRS CORP	5,000	$222K	1.33%	Put
2634	—INSEEGO CORP	46,800	$221K	1.33%	Put
2635	—AMERICAN OUTDOOR BRANDS CORP	23,700	$221K	1.33%	Put
2636	AVNTNAVIENT CORPORATION	19,100	$221K	1.33%	Call
2637	EVRGEVERGY INC	3,800	$221K	1.33%	Call
2638	—INTEC PHARMA LTD JERUSALEM	30,200	$221K	1.33%	Call
2639	ITTITT INC	3,800	$220K	1.32%	Call
2640	GTGOODYEAR TIRE & RUBR CO	12,095	$220K	1.32%
2641	VRAVERA BRADLEY INC	16,600	$220K	1.32%	Call
2642	CSTECAESARSTONE LTD	14,053	$219K	1.31%
2643	SATSECHOSTAR CORP	6,000	$219K	1.31%	Call
2644	VNDAVANDA PHARMACEUTICALS INC	11,900	$219K	1.31%	Call
2645	—SOCIEDAD QUIMICA MINERA DE C	5,700	$219K	1.31%	Call
2646	—PATTERSON COMPANIES INC	10,000	$219K	1.31%	Put
2647	—VEDANTA LTD	20,700	$219K	1.31%	Call
2648	—VEECO INSTRS INC DEL	20,200	$219K	1.31%	Put
2649	—TATA MTRS LTD	17,400	$219K	1.31%	Put
2650	YRIYAMANA GOLD INC	83,427	$218K	1.31%
2651	HUNHUNTSMAN CORP	9,700	$218K	1.31%
2652	OECORION ENGINEERED CARBONS S A	11,500	$218K	1.31%	Call
2653	HUNHUNTSMAN CORP	9,700	$218K	1.31%	Call
2654	GLNGGOLAR LNG LTD BERMUDA	10,353	$218K	1.31%
2655	WLKWESTLAKE CHEM CORP	3,200	$217K	1.30%	Call
2656	DISCAUSDDISCOVERY INC	8,023	$217K	1.30%
2657	—DERMIRA INC	16,000	$217K	1.30%	Put
2658	—CALLAWAY GOLF CO	13,600	$217K	1.30%	Call
2659	BOOTBOOT BARN HLDGS INC	7,387	$217K	1.30%
2660	—SOUTHWESTERN ENERGY CO	46,200	$217K	1.30%	Put
2661	IRWDIRONWOOD PHARMACEUTICALS INC	16,000	$216K	1.30%	Call
2662	CREECREE INC	3,782	$216K	1.30%
2663	RIGLUSDRIGEL PHARMACEUTICALS INC	83,898	$216K	1.30%
2664	AMEAMETEK INC NEW	2,600	$216K	1.30%	Call
2665	SRJSPARTANNASH CO	13,576	$215K	1.29%
2666	ARLOARLO TECHNOLOGIES INC	52,100	$215K	1.29%	Call
2667	BEBLOOM ENERGY CORP	16,537	$214K	1.28%
2668	LHCGUSDLHC GROUP INC	1,931	$214K	1.28%
2669	FTITECHNIPFMC PLC	9,052	$213K	1.28%
2670	EFXEQUIFAX INC	1,800	$213K	1.28%	Put
2671	UNMUNUM GROUP	6,300	$213K	1.28%	Put
2672	—SYNCHRONOSS TECHNOLOGIES INC	34,800	$212K	1.27%	Put
2673	EMREMERSON ELEC CO	3,100	$212K	1.27%	Put
2674	BKBANK NEW YORK MELLON CORP	4,200	$212K	1.27%	Call
2675	—NATIONAL CINEMEDIA INC	30,100	$212K	1.27%	Call
2676	LPSNLIVEPERSON INC	7,300	$212K	1.27%	Call
2677	—TAUBMAN CTRS INC	4,000	$212K	1.27%	Put
2678	BLMNBLOOMIN BRANDS INC	10,300	$211K	1.27%	Call
2679	FIVEFIVE BELOW INC	1,700	$211K	1.27%	Call
2680	TAKTAKEDA PHARMACEUTICAL CO LTD	10,300	$210K	1.26%	Put
2681	—RECRO PHARMA INC	35,800	$210K	1.26%	Call
2682	REZIRESIDEO TECHNOLOGIES INC	10,862	$210K	1.26%
2683	EDGGOLD FIELDS LTD NEW	55,881	$208K	1.25%
2684	—ABEONA THERAPEUTICS INC	28,200	$208K	1.25%	Put
2685	—LOGMEIN INC	2,600	$208K	1.25%	Call
2686	—HESS MIDSTREAM PARTNERS LP	9,800	$208K	1.25%	Call
2687	MFINMEDALLION FINL CORP	30,100	$208K	1.25%	Put
2688	—PROTEOSTASIS THERAPEUTICS IN	164,700	$208K	1.25%	Call
2689	DBCINVESCO DB COMMDY INDX TRCK	13,063	$208K	1.25%
2690	—INSTRUCTURE INC	4,399	$207K	1.24%
2691	OLNOLIN CORP	8,954	$207K	1.24%
2692	—MARINUS PHARMACEUTICALS INC	49,600	$207K	1.24%	Call
2693	GMS1EURGMS INC	13,670	$207K	1.24%
2694	TERTERADYNE INC	5,200	$207K	1.24%	Put
2695	VRAYQVIEWRAY INC	28,045	$207K	1.24%
2696	—ZYNERBA PHARMACEUTICALS INC	38,178	$207K	1.24%
2697	—SEAGATE TECHNOLOGY PLC	4,300	$206K	1.24%	Call
2698	—AVALARA INC	3,700	$206K	1.24%	Call
2699	—ZIX CORP	30,000	$206K	1.24%	Put
2700	GDOTGREEN DOT CORP	3,400	$206K	1.24%	Call

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