GROUP ONE TRADING LLC Q1 2016 Filing

Filed May 12, 2016

Portfolio Value

$7.1M

Holdings

4,548

Report Date

Q1 2016

Filing Type

13F-HR

All Holdings (4,548 positions)

#	Stock	Shares	Value	% Portfolio	Type
801	—FLAMEL TECHNOLOGIES SA	30,600	$338K	4.77%	Call
802	—QUALITY SYS INC	22,200	$338K	4.77%	Put
803	—DIAMOND RESORTS INTL INC	13,915	$338K	4.77%
804	NOAHNOAH HLDGS LTD	13,600	$338K	4.77%	Put
805	—ALLSTATE CORP	5,000	$337K	4.76%	Put
806	LGIHLGI HOMES INC	13,900	$337K	4.76%	Put
807	—APPLIED MICRO CIRCUITS CORP	51,928	$335K	4.73%
808	—JAKKS PAC INC	45,000	$335K	4.73%	Call
809	—ASTRAZENECA PLC	11,894	$335K	4.73%
810	IDCCINTERDIGITAL INC	6,000	$334K	4.72%	Put
811	—RADIUS HEALTH INC	10,600	$333K	4.70%	Call
812	—NORTHERN TIER ENERGY LP	14,124	$333K	4.70%
813	—GRUBHUB INC	13,256	$333K	4.70%
814	—RUBICON PROJ INC	18,200	$333K	4.70%	Call
815	MTGMGIC INVT CORP WIS	43,227	$332K	4.69%
816	—SPIRIT AIRLS INC	6,900	$331K	4.67%	Call
817	—PRETIUM RES INC	61,800	$331K	4.67%	Call
818	—STAMPS COM INC	3,100	$329K	4.64%	Put
819	GTGOODYEAR TIRE & RUBR CO	9,969	$329K	4.64%
820	AKBAAKEBIA THERAPEUTICS INC	36,400	$328K	4.63%	Call
821	—MAGICJACK VOCALTEC LTD	49,900	$327K	4.62%	Put
822	HQYHEALTHEQUITY INC	13,200	$326K	4.60%	Call
823	OMFONEMAIN HLDGS INC	11,900	$326K	4.60%	Call
824	—AMERICAN CAPITAL AGENCY CORP	17,422	$325K	4.59%
825	—DENBURY RES INC	146,500	$325K	4.59%	Put
826	COPCONOCOPHILLIPS	8,057	$324K	4.57%
827	—FIFTH STREET FINANCE CORP	64,600	$324K	4.57%	Put
828	—FIRST DATA CORP NEW	25,000	$324K	4.57%	Put
829	—ARROWHEAD RESH CORP	67,200	$324K	4.57%	Call
830	—AMARIN CORP PLC	212,000	$324K	4.57%	Put
831	JACKJACK IN THE BOX INC	5,061	$323K	4.56%
832	TYLTYLER TECHNOLOGIES INC	2,500	$322K	4.55%	Call
833	SEASEABRIDGE GOLD INC	29,414	$322K	4.55%
834	OPLNKAR AUCTION SVCS INC	8,400	$320K	4.52%	Call
835	LXRXLEXICON PHARMACEUTICALS INC	26,700	$319K	4.50%	Call
836	—TETRAPHASE PHARMACEUTICALS I	68,800	$319K	4.50%	Put
837	—AVNET INC	7,200	$319K	4.50%	Call
838	—CHINA BIOLOGIC PRODS INC	2,785	$319K	4.50%
839	—ULTRA PETROLEUM CORP	637,700	$318K	4.49%	Put
840	—TESORO CORP	3,700	$318K	4.49%	Put
841	—BOB EVANS FARMS INC	6,800	$317K	4.48%	Put
842	—CINCINNATI BELL INC NEW	81,686	$316K	4.46%
843	—CLUBCORP HLDGS INC	22,482	$316K	4.46%
844	HQYHEALTHEQUITY INC	12,800	$316K	4.46%	Put
845	—SWIFT TRANSN CO	16,900	$315K	4.45%	Put
846	AXTAAXALTA COATING SYS LTD	10,800	$315K	4.45%	Put
847	—NATUS MEDICAL INC DEL	8,200	$315K	4.45%	Put
848	—FIRST NIAGARA FINL GP INC	32,500	$315K	4.45%	Call
849	QCOMQUALCOMM INC	6,158	$315K	4.45%
850	—STATOIL ASA	20,094	$313K	4.42%
851	—RAPTOR PHARMACEUTICAL CORP	67,900	$312K	4.40%	Call
852	—GNC HLDGS INC	9,800	$311K	4.39%	Put
853	—LION BIOTECHNOLOGIES INC	61,300	$311K	4.39%	Call
854	—IKANG HEALTHCARE GROUP INC	14,216	$311K	4.39%
855	—ZAYO GROUP HLDGS INC	12,800	$310K	4.38%	Call
856	—CALIFORNIA RES CORP	301,200	$310K	4.38%	Call
857	—IKANG HEALTHCARE GROUP INC	14,200	$310K	4.38%	Call
858	—ORGANOVO HLDGS INC	142,755	$310K	4.38%
859	—CIT GROUP INC	10,000	$310K	4.38%	Put
860	—CURRENCYSHS JAPANESE YEN TR	3,600	$310K	4.38%	Call
861	—ALERE INC	6,096	$309K	4.36%
862	—ARIAD PHARMACEUTICALS INC	48,395	$309K	4.36%
863	ALKSALKERMES PLC	9,000	$308K	4.35%	Call
864	—INTERPUBLIC GROUP COS INC	13,400	$308K	4.35%	Call
865	—AMKOR TECHNOLOGY INC	52,100	$307K	4.33%	Put
866	—CAESARS ENTMT CORP	45,200	$307K	4.33%	Call
867	—REGULUS THERAPEUTICS INC	44,087	$306K	4.32%
868	RJFRAYMOND JAMES FINANCIAL INC	6,400	$305K	4.31%	Put
869	—TRANSENTERIX INC	71,721	$305K	4.31%
870	—INPHI CORP	9,100	$303K	4.28%	Put
871	—ARRIS INTL INC	13,200	$303K	4.28%	Put
872	DBDEUTSCHE BANK AG	17,841	$302K	4.26%
873	FDO.FMACYS INC	6,822	$301K	4.25%
874	—ZELTIQ AESTHETICS INC	11,100	$301K	4.25%	Put
875	HBANHUNTINGTON BANCSHARES INC	31,453	$300K	4.24%
876	—HORTONWORKS INC	26,500	$299K	4.22%	Put
877	—MOBILE TELESYSTEMS PJSC	37,000	$299K	4.22%	Call
878	—PURE STORAGE INC	21,800	$298K	4.21%	Call
879	FLOFLOWERS FOODS INC	16,142	$298K	4.21%
880	—CEMPRA INC	16,998	$298K	4.21%
881	VFCV F CORP	4,600	$298K	4.21%	Put
882	—CRESUD S A C I F Y A	25,600	$298K	4.21%	Put
883	CPRTCOPART INC	7,300	$298K	4.21%	Call
884	—JAMBA INC	24,000	$297K	4.19%	Put
885	—TIVO INC	31,200	$297K	4.19%	Call
886	—ST JUDE MED INC	5,400	$297K	4.19%	Call
887	—COLUMBIA PIPELINE GROUP INC	11,800	$296K	4.18%	Put
888	—EXAMWORKS GROUP INC	10,000	$296K	4.18%	Put
889	—NQ MOBILE INC	64,500	$295K	4.16%	Call
890	VCYTVERACYTE INC	54,623	$295K	4.16%
891	—FINISAR CORP	16,200	$295K	4.16%	Put
892	SCCOSOUTHERN COPPER CORP	10,600	$294K	4.15%	Call
893	—CALLON PETE CO DEL	33,200	$294K	4.15%	Put
894	ECECOPETROL S A	34,200	$294K	4.15%	Put
895	IRDMIRIDIUM COMMUNICATIONS INC	37,400	$294K	4.15%	Call
896	INGMINGRAM MICRO INC	8,175	$294K	4.15%
897	—CREE INC	10,100	$294K	4.15%	Put
898	ZIONZIONS BANCORPORATION	12,100	$293K	4.14%	Call
899	AGQPROSHARES TR	18,400	$293K	4.14%	Call
900	—MERITOR INC	36,200	$292K	4.12%	Put

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