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
1501	ANETEURARISTA NETWORKS INC	2,875	$904K	5.42%
1502	—U S CONCRETE INC	21,800	$903K	5.42%	Call
1503	GRPNCHFGROUPON INC	252,992	$898K	5.39%
1504	—AKORN INC	254,800	$897K	5.38%	Call
1505	—AVAYA HLDGS CORP	53,300	$897K	5.38%	Put
1506	IRDMIRIDIUM COMMUNICATIONS INC	33,900	$896K	5.37%	Call
1507	MPLXMPLX LP	27,200	$895K	5.37%	Call
1508	TPCTUTOR PERINI CORP	52,200	$894K	5.36%	Call
1509	—ATTUNITY LTD	38,100	$893K	5.36%	Call
1510	HLFHERBALIFE NUTRITION LTD	16,800	$890K	5.34%	Call
1511	FDPFRESH DEL MONTE PRODUCE INC	32,900	$889K	5.33%	Put
1512	—BUCKEYE PARTNERS L P	26,100	$888K	5.33%	Put
1513	ZTOZTO EXPRESS CAYMAN INC	48,600	$888K	5.33%	Call
1514	—HAWAIIAN HOLDINGS INC	33,800	$887K	5.32%	Put
1515	—II VI INC	23,800	$886K	5.31%	Put
1516	—HORIZON PHARMA PLC	33,500	$885K	5.31%	Put
1517	PGPROCTER AND GAMBLE CO	8,500	$884K	5.30%	Call
1518	TGTXTG THERAPEUTICS INC	109,826	$883K	5.30%
1519	FLRFLUOR CORP NEW	24,000	$883K	5.30%	Put
1520	FISFIDELITY NATL INFORMATION SV	7,779	$880K	5.28%
1521	RLJRLJ LODGING TR	50,000	$879K	5.27%	Call
1522	JBGSJBG SMITH PPTYS	21,200	$877K	5.26%	Put
1523	FNKOFUNKO INC	40,300	$875K	5.25%	Put
1524	RFREGIONS FINL CORP NEW	61,700	$873K	5.24%	Put
1525	NVTNVENT ELECTRIC PLC	32,300	$871K	5.22%	Call
1526	—RADIUS HEALTH INC	43,600	$869K	5.21%	Put
1527	—SIRIUS XM HLDGS INC	153,000	$868K	5.21%	Call
1528	—IMMUNOMEDICS INC	45,200	$868K	5.21%	Put
1529	—ATTUNITY LTD	36,900	$865K	5.19%	Put
1530	UPLDUPLAND SOFTWARE INC	20,400	$864K	5.18%	Call
1531	VYXNCR CORP NEW	31,600	$862K	5.17%	Call
1532	—AMC ENTMT HLDGS INC	58,000	$861K	5.16%	Put
1533	—SERVICEMASTER GLOBAL HLDGS I	18,400	$859K	5.15%	Call
1534	—GTT COMMUNICATIONS INC	24,763	$859K	5.15%
1535	—TEEKAY OFFSHORE PARTNERS L P	715,878	$859K	5.15%
1536	FLRFLUOR CORP NEW	23,327	$858K	5.15%
1537	—BLACK KNIGHT INC	15,700	$856K	5.13%	Call
1538	WSMWILLIAMS SONOMA INC	15,200	$855K	5.13%	Call
1539	—COUPA SOFTWARE INC	9,400	$855K	5.13%	Put
1540	NUSNU SKIN ENTERPRISES INC	17,800	$852K	5.11%	Put
1541	CHGGCHEGG INC	22,345	$852K	5.11%
1542	—AMYRIS INC	406,600	$850K	5.10%	Put
1543	GDGENERAL DYNAMICS CORP	5,000	$846K	5.07%	Put
1544	—BUCKEYE PARTNERS L P	24,859	$846K	5.07%
1545	GEOGEO GROUP INC NEW	44,000	$845K	5.07%	Put
1546	—PENNEY J C CORP INC	567,100	$845K	5.07%	Put
1547	VIAVVIAVI SOLUTIONS INC	68,100	$843K	5.06%	Call
1548	—SHUTTERFLY INC	20,700	$841K	5.04%	Call
1549	—SHIP FINANCE INTERNATIONAL L	68,100	$840K	5.04%	Call
1550	KTOSKRATOS DEFENSE & SEC SOLUTIO	53,700	$839K	5.03%	Call
1551	—FITBIT INC	141,800	$839K	5.03%	Put
1552	BBVABANCO BILBAO VIZCAYA ARGENTA	146,100	$837K	5.02%	Call
1553	—NOVAVAX INC	1,518,500	$837K	5.02%	Call
1554	SUPNSUPERNUS PHARMACEUTICALS INC	23,900	$837K	5.02%	Call
1555	AAOIAPPLIED OPTOELECTRONICS INC	68,200	$832K	4.99%	Put
1556	MTZMASTEC INC	17,300	$832K	4.99%	Put
1557	AGFIRST MAJESTIC SILVER CORP	126,316	$831K	4.98%
1558	GPCGENUINE PARTS CO	7,400	$829K	4.97%	Call
1559	HASIHANNON ARMSTRONG SUST INFR C	32,300	$828K	4.97%	Call
1560	METMETLIFE INC	19,400	$826K	4.95%	Call
1561	—GTT COMMUNICATIONS INC	23,800	$826K	4.95%	Put
1562	FTDRFRONTDOOR INC	24,000	$826K	4.95%	Call
1563	—CONNS INC	36,100	$825K	4.95%	Put
1564	BOXBOX INC	42,700	$825K	4.95%	Call
1565	—HI-CRUSH PARTNERS LP	185,100	$824K	4.94%	Call
1566	CDECOEUR MNG INC	201,740	$823K	4.94%
1567	—HORIZON PHARMA PLC	31,132	$823K	4.94%
1568	RESRPC INC	72,000	$822K	4.93%	Call
1569	—TRITON INTL LTD	26,400	$821K	4.92%	Put
1570	GOOSCANADA GOOSE HOLDINGS INC	17,100	$821K	4.92%	Call
1571	INGNINOGEN INC	8,600	$820K	4.92%	Put
1572	DLTRDOLLAR TREE INC	7,800	$819K	4.91%	Call
1573	PAYCPAYCOM SOFTWARE INC	4,300	$813K	4.88%	Call
1574	—IMMUNOGEN INC	299,900	$813K	4.88%	Put
1575	—ROSETTA STONE INC	37,100	$811K	4.86%	Put
1576	PAGSPAGSEGURO DIGITAL LTD	27,100	$809K	4.85%	Put
1577	—VECTOR GROUP LTD	74,900	$808K	4.85%	Call
1578	—AEROJET ROCKETDYNE HLDGS INC	22,700	$807K	4.84%	Call
1579	—PATTERN ENERGY GROUP INC	36,600	$805K	4.83%	Call
1580	DOMODOMO INC	19,900	$803K	4.82%	Put
1581	CTRPUSDCTRIP COM INTL LTD	18,379	$803K	4.82%
1582	—GLU MOBILE INC	73,200	$801K	4.80%	Call
1583	—FOOT LOCKER INC	13,200	$800K	4.80%	Put
1584	BLUEBLUEBIRD BIO INC	5,087	$800K	4.80%
1585	CXCEMEX SAB DE CV	172,499	$800K	4.80%
1586	TBCHTURTLE BEACH CORP	70,300	$799K	4.79%	Put
1587	—HOLLYFRONTIER CORP	16,200	$798K	4.79%	Call
1588	—RITE AID CORP	1,255,311	$797K	4.78%
1589	—OASIS PETE INC NEW	131,800	$796K	4.77%	Put
1590	EXTREXTREME NETWORKS INC	106,139	$795K	4.77%
1591	—JAGGED PEAK ENERGY INC	75,800	$794K	4.76%	Call
1592	—WEATHERFORD INTL PLC	1,138,200	$794K	4.76%	Put
1593	—TRITON INTL LTD	25,500	$793K	4.76%	Call
1594	MTARCELORMITTAL SA LUXEMBOURG	38,900	$793K	4.76%	Put
1595	OTEXOPEN TEXT CORP	20,500	$788K	4.73%	Put
1596	TDTORONTO DOMINION BK ONT	14,500	$788K	4.73%	Call
1597	IBNICICI BK LTD	68,700	$787K	4.72%	Call
1598	PDFSPDF SOLUTIONS INC	63,700	$787K	4.72%	Put
1599	ANETARISTA NETWORKS INC	2,500	$786K	4.71%	Call
1600	SUPNSUPERNUS PHARMACEUTICALS INC	22,400	$785K	4.71%	Put

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