GROUP ONE TRADING LLC Q1 2018 Filing

Filed May 11, 2018

Portfolio Value

$10.5B

Holdings

4,806

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (4,806 positions)

#StockSharesValue% PortfolioType
801
BALLARD PWR SYS INC NEW
101,300$360.0M3.42%Put
802
MATCH GROUP INC
8,100$360.0M3.42%Put
803
DISCOVER FINL SVCS
5,000$360.0M3.42%Put
804
TRANSENTERIX INC
211,200$359.0M3.41%Put
805
NATNORDIC AMERICAN TANKERS LIMI
185,200$359.0M3.41%Call
806
NEOS THERAPEUTICS INC
43,300$359.0M3.41%Put
807
FANHUA INC
13,229$357.0M3.39%
808
RGRSTURM RUGER & CO INC
6,800$357.0M3.39%Put
809
AGNC INVT CORP
18,800$356.0M3.38%Call
810
FUELCELL ENERGY INC
205,500$356.0M3.38%Call
811
ABJAABB LTD
15,015$356.0M3.38%
812
ACMAECOM
10,000$356.0M3.38%Call
813
ODPEUROFFICE DEPOT INC
165,016$355.0M3.37%
814
ZNGAEURZYNGA INC
96,426$353.0M3.35%
815
SERVICESOURCE INTL INC
92,700$353.0M3.35%Call
816
FANG HLDGS LTD
68,700$353.0M3.35%Put
817
CHDCHURCH & DWIGHT INC
7,000$353.0M3.35%Call
818
PENNSYLVANIA RL ESTATE INVT
36,600$353.0M3.35%Call
819
DQDAQO NEW ENERGY CORP
7,200$352.0M3.34%Call
820
PWRQUANTA SVCS INC
10,256$352.0M3.34%
821
LITHIA MTRS INC
3,500$352.0M3.34%Call
822
LA JOLLA PHARMACEUTICAL CO
11,800$351.0M3.33%Put
823
CCICROWN CASTLE INTL CORP NEW
3,200$351.0M3.33%Put
824
LINE CORP
9,000$351.0M3.33%Call
825
FSLRFIRST SOLAR INC
4,924$350.0M3.32%
826
NATIONAL OILWELL VARCO INC
9,500$350.0M3.32%Put
827
APACHE CORP
9,100$350.0M3.32%Call
828
TTS1EURTILE SHOP HLDGS INC
58,128$349.0M3.31%
829
ABEONA THERAPEUTICS INC
24,300$349.0M3.31%Put
830
PHOENIX NEW MEDIA LTD
80,208$349.0M3.31%
831
MUELLER WTR PRODS INC
32,100$349.0M3.31%Call
832
MURMURPHY OIL CORP
13,511$349.0M3.31%
833
PPCPILGRIMS PRIDE CORP NEW
14,200$349.0M3.31%Put
834
AXOVANT SCIENCES LTD
262,745$349.0M3.31%
835
VACMARRIOTT VACATIONS WRLDWDE C
2,616$348.0M3.30%
836
CLEARSIDE BIOMEDICAL INC
32,300$347.0M3.29%Call
837
NUSTAR GP HOLDINGS LLC
30,000$347.0M3.29%Put
838
TC PIPELINES LP
10,000$347.0M3.29%Put
839
TAUBMAN CTRS INC
6,100$347.0M3.29%Call
840
GREENHILL & CO INC
18,600$344.0M3.27%Call
841
GRUBHUB INC
3,392$344.0M3.27%
842
PBTPERMIAN BASIN RTY TR
35,600$344.0M3.27%Call
843
ACIWACI WORLDWIDE INC
14,500$344.0M3.27%Call
844
MCDERMOTT INTL INC
56,100$342.0M3.25%Put
845
RUTHS HOSPITALITY GROUP INC
14,000$342.0M3.25%Call
846
COMSTOCK RES INC
46,600$341.0M3.24%Put
847
SUNTRUST BKS INC
5,000$340.0M3.23%Put
848
GTT COMMUNICATIONS INC
6,000$340.0M3.23%Put
849
PKXPOSCO
4,300$339.0M3.22%Put
850
VCYTVERACYTE INC
60,700$337.0M3.20%Put
851
MXMAGNACHIP SEMICONDUCTOR CORP
35,110$337.0M3.20%
852
ARCPEURVEREIT INC
48,263$336.0M3.19%
853
MICRO FOCUS INTERNATIONAL PL
23,950$336.0M3.19%
854
RIGEL PHARMACEUTICALS INC
94,500$335.0M3.18%Call
855
TRUTRANSUNION
5,900$335.0M3.18%Put
856
RGLDROYAL GOLD INC
3,900$335.0M3.18%Put
857
COLFAX CORP
10,500$335.0M3.18%Put
858
EXPRESS INC
46,600$334.0M3.17%Put
859
ENRENERGIZER HLDGS INC NEW
5,600$334.0M3.17%Put
860
TRINITY INDS INC
10,200$333.0M3.16%Call
861
FINISAR CORP
21,086$333.0M3.16%
862
ULTRA PETROLEUM CORP
79,900$333.0M3.16%Put
863
TCXTUCOWS INC
5,953$333.0M3.16%
864
PARATEK PHARMACEUTICALS INC
25,500$332.0M3.15%Call
865
TDWTIDEWATER INC NEW
11,600$332.0M3.15%Call
866
STNGSCORPIO TANKERS INC
169,034$331.0M3.14%
867
WWAYFAIR INC
4,900$331.0M3.14%Put
868
LINK MOTION INC
198,800$330.0M3.13%Put
869
JUPAI HLDGS LTD
16,191$330.0M3.13%
870
HB6HIBBETT SPORTS INC
13,790$330.0M3.13%
871
NRG YIELD INC
20,000$329.0M3.12%Put
872
OMEXODYSSEY MARINE EXPLORATION I
39,671$328.0M3.11%
873
AMSCAMERICAN SUPERCONDUCTOR CORP
56,000$326.0M3.09%Put
874
NFLXNETFLIX INC
1,100$325.0M3.08%Call
875
KROKRONOS WORLDWIDE INC
14,400$325.0M3.08%Call
876
EMBJEMBRAER S A
12,465$324.0M3.08%
877
ACCELERATE DIAGNOSTICS INC
14,200$324.0M3.08%Call
878
CDZICADIZ INC
24,000$324.0M3.08%Call
879
BROOKLINE BANCORP INC DEL
200$324.0M3.08%Call
880
INVHINVITATION HOMES INC
14,200$324.0M3.08%Put
881
SONIC CORP
12,800$323.0M3.07%Put
882
SNDXSYNDAX PHARMACEUTICALS INC
22,700$323.0M3.07%Call
883
ARCH COAL INC
3,500$322.0M3.06%Put
884
ELFE L F BEAUTY INC
16,600$322.0M3.06%Call
885
CARBO CERAMICS INC
44,400$322.0M3.06%Call
886
GRPNCHFGROUPON INC
74,050$321.0M3.05%
887
PAGPPLAINS GP HLDGS L P
14,753$321.0M3.05%
888
HILLENBRAND INC
7,000$321.0M3.05%Call
889
HTDCORCEPT THERAPEUTICS INC
19,429$320.0M3.04%
890
SQMSOCIEDAD QUIMICA MINERA DE C
6,520$320.0M3.04%
891
OMEXODYSSEY MARINE EXPLORATION I
38,700$320.0M3.04%Call
892
ROCKWELL MED INC
61,300$319.0M3.03%Put
893
SBRASABRA HEALTH CARE REIT INC
18,100$319.0M3.03%Put
894
UNIVERSAL INS HLDGS INC
10,000$319.0M3.03%Call
895
TURQUOISE HILL RES LTD
103,700$318.0M3.02%Call
896
HDSUSDHD SUPPLY HLDGS INC
8,380$318.0M3.02%
897
SHELL MIDSTREAM PARTNERS L P
15,100$318.0M3.02%Call
898
CMCDN IMPERIAL BK COMM TORONTO
3,600$318.0M3.02%Call
899
FCFRANKLIN COVEY CO
11,800$317.0M3.01%Call
900
TIVITY HEALTH INC
8,000$317.0M3.01%Call
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