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
1601	—NEW GOLD INC CDA	364,900	$941K	8.93%	Put
1602	GGALGRUPO FINANCIERO GALICIA S A	14,300	$940K	8.92%	Put
1603	CCLCARNIVAL CORP	14,300	$938K	8.90%	Put
1604	—ORBCOMM INC	1,000	$937K	8.89%	Put
1605	—OLD REP INTL CORP	43,700	$937K	8.89%	Call
1606	—TD AMERITRADE HLDG CORP	15,800	$936K	8.88%	Put
1607	—ACACIA COMMUNICATIONS INC	24,314	$935K	8.87%
1608	RIOTRIOT BLOCKCHAIN INC	141,100	$934K	8.87%	Put
1609	VACMARRIOTT VACATIONS WRLDWDE C	7,000	$932K	8.85%	Put
1610	—ZIOPHARM ONCOLOGY INC	237,800	$932K	8.85%	Call
1611	GLPIGAMING & LEISURE PPTYS INC	27,800	$930K	8.83%	Call
1612	—MAGELLAN MIDSTREAM PRTNRS LP	15,900	$928K	8.81%	Put
1613	DXCMDEXCOM INC	12,500	$927K	8.80%	Put
1614	—TURQUOISE HILL RES LTD	301,600	$926K	8.79%	Put
1615	—EBIX INC	12,400	$924K	8.77%	Put
1616	JNJJOHNSON & JOHNSON	7,200	$923K	8.76%	Put
1617	TMUST MOBILE US INC	15,127	$923K	8.76%
1618	PGPROCTER AND GAMBLE CO	11,627	$922K	8.75%
1619	ICHRICHOR HOLDINGS	38,100	$922K	8.75%	Call
1620	SNYSANOFI	22,900	$918K	8.71%	Call
1621	VOYAVOYA FINL INC	18,100	$914K	8.68%	Call
1622	FEYECHFFIREEYE INC	53,993	$914K	8.68%
1623	NXSTNEXSTAR MEDIA GROUP INC	13,700	$911K	8.65%	Call
1624	SUNSUNOCO LP	35,700	$911K	8.65%	Call
1625	—22ND CENTY GROUP INC	387,800	$911K	8.65%	Call
1626	FITBFIFTH THIRD BANCORP	28,700	$911K	8.65%	Call
1627	—58 COM INC	11,400	$910K	8.64%	Call
1628	—CHANNELADVISOR CORP	1,000	$910K	8.64%	Call
1629	OREALTY INCOME CORP	17,600	$910K	8.64%	Call
1630	TDOCTELADOC INC	22,500	$907K	8.61%	Put
1631	SSNCSS&C TECHNOLOGIES HLDGS INC	16,900	$907K	8.61%	Call
1632	MCHPMICROCHIP TECHNOLOGY INC	9,912	$906K	8.60%
1633	WDCWESTERN DIGITAL CORP	9,811	$905K	8.59%
1634	DOEURDIAMOND OFFSHORE DRILLING IN	61,660	$904K	8.58%
1635	—WILDHORSE RESOURCE DEV CORP	47,300	$903K	8.57%	Call
1636	CYBRCYBERARK SOFTWARE LTD	17,700	$903K	8.57%	Put
1637	—CREE INC	22,400	$903K	8.57%	Call
1638	—SOTHEBYS	17,500	$898K	8.52%	Put
1639	AXTAAXALTA COATING SYS LTD	29,699	$897K	8.51%
1640	PTCTPTC THERAPEUTICS INC	33,100	$896K	8.50%	Call
1641	AGIALAMOS GOLD INC NEW	171,200	$892K	8.47%	Call
1642	—XINYUAN REAL ESTATE CO LTD	168,300	$889K	8.44%	Call
1643	UAAUNDER ARMOUR INC	54,295	$888K	8.43%
1644	—AIRCASTLE LTD	44,600	$886K	8.41%	Put
1645	—ROYAL BK SCOTLAND GROUP PLC	119,700	$886K	8.41%	Put
1646	HUNHUNTSMAN CORP	30,300	$886K	8.41%	Put
1647	JCIJOHNSON CTLS INTL PLC	25,100	$885K	8.40%	Put
1648	SGITEMPUR SEALY INTL INC	19,500	$883K	8.38%	Call
1649	—INFINERA CORPORATION	81,100	$881K	8.36%	Put
1650	—ASSEMBLY BIOSCIENCES INC	17,900	$880K	8.35%	Put
1651	SCISERVICE CORP INTL	23,210	$876K	8.31%
1652	CLLSCELLECTIS S A	27,700	$873K	8.29%	Call
1653	KMTKENNAMETAL INC	21,700	$871K	8.27%	Call
1654	—BARNES & NOBLE INC	175,800	$870K	8.26%	Call
1655	—ELDORADO RESORTS INC	26,300	$868K	8.24%	Put
1656	TRIPTRIPADVISOR INC	21,200	$867K	8.23%	Call
1657	—500 COM LTD	50,500	$867K	8.23%	Put
1658	IGTINTERNATIONAL GAME TECHNOLOG	32,442	$867K	8.23%
1659	JBLUJETBLUE AIRWAYS CORP	42,584	$865K	8.21%
1660	COTYCOTY INC	47,255	$865K	8.21%
1661	—MACQUARIE INFRASTRUCTURE COR	23,400	$864K	8.20%	Call
1662	BGSB & G FOODS INC NEW	36,400	$863K	8.19%	Put
1663	AMKRAMKOR TECHNOLOGY INC	85,000	$861K	8.17%	Put
1664	ENPHENPHASE ENERGY INC	188,100	$860K	8.16%	Put
1665	VUZIVUZIX CORP	156,200	$859K	8.15%	Call
1666	—AQUINOX PHARMACEUTICALS INC	61,000	$859K	8.15%	Put
1667	—LAZARD LTD	16,300	$857K	8.13%	Call
1668	—UNILEVER N V	15,200	$857K	8.13%	Put
1669	—SORRENTO THERAPEUTICS INC	166,200	$856K	8.13%	Call
1670	—SUPERVALU INC	56,050	$854K	8.11%
1671	—BUCKEYE PARTNERS L P	22,800	$852K	8.09%	Put
1672	—CHEETAH MOBILE INC	63,600	$850K	8.07%	Call
1673	—OASIS PETE INC NEW	104,600	$847K	8.04%	Put
1674	—COMPANIA DE MINAS BUENAVENTU	55,300	$842K	7.99%	Call
1675	HALHALLIBURTON CO	17,900	$840K	7.97%	Put
1676	IDCCINTERDIGITAL INC	11,400	$839K	7.96%	Call
1677	GGBGERDAU S A	179,764	$838K	7.95%
1678	—BOARDWALK PIPELINE PARTNERS	82,400	$836K	7.94%	Put
1679	ALKALASKA AIR GROUP INC	13,500	$836K	7.94%	Call
1680	SNAPSNAP INC	52,626	$835K	7.93%
1681	—FOUNDATION MEDICINE INC	10,600	$835K	7.93%	Put
1682	DGXQUEST DIAGNOSTICS INC	8,300	$832K	7.90%
1683	—LOXO ONCOLOGY INC	7,200	$831K	7.89%	Put
1684	—REALOGY HLDGS CORP	30,400	$829K	7.87%	Call
1685	—SORL AUTO PTS INC	127,100	$827K	7.85%	Put
1686	SBSWSIBANYE STILLWATER	206,921	$826K	7.84%
1687	MRSHMARSH & MCLENNAN COS INC	100	$826K	7.84%	Call
1688	BENFRANKLIN RES INC	23,800	$825K	7.83%	Call
1689	AXSAXIS CAPITAL HOLDINGS LTD	14,312	$824K	7.82%
1690	—ENERGEN CORP	13,100	$823K	7.81%	Call
1691	—AMTRUST FINL SVCS INC	66,800	$822K	7.80%	Call
1692	—CARRIZO OIL & GAS INC	51,100	$818K	7.76%	Put
1693	THOTHOR INDS INC	7,101	$818K	7.76%
1694	GMEGAMESTOP CORP NEW	64,600	$815K	7.74%	Put
1695	GGGGRACO INC	17,800	$814K	7.73%	Call
1696	AESAES CORP	71,600	$814K	7.73%	Call
1697	ARCOARCOS DORADOS HOLDINGS INC	88,500	$810K	7.69%	Put
1698	LOGILOGITECH INTL S A	22,044	$810K	7.69%
1699	ALKSALKERMES PLC	13,975	$810K	7.69%
1700	GNTXGENTEX CORP	35,057	$807K	7.66%

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