GROUP ONE TRADING LLC Q2 2019 Filing

Filed August 9, 2019

Portfolio Value

$11.1B

Holdings

4,933

Report Date

Q2 2019

Filing Type

13F-HR

All Holdings (4,933 positions)

#StockSharesValue% PortfolioType
801
PETSPETMED EXPRESS INC
24,100$378.0M3.42%Put
802
ENERPLUS CORP
50,000$377.0M3.41%Call
803
ACLSAXCELIS TECHNOLOGIES INC
25,000$376.0M3.40%Put
804
SOHUSOHU COM LTD
26,808$375.0M3.39%
805
HASIHANNON ARMSTRONG SUST INFR C
13,300$375.0M3.39%Call
806
SVRASAVARA INC
158,200$375.0M3.39%Call
807
APPNAPPIAN CORP
10,400$375.0M3.39%Call
808
CRBPEURCORBUS PHARMACEUTICALS HLDGS
54,111$375.0M3.39%
809
MERCMERCER INTL INC
24,200$374.0M3.38%Call
810
AMANTERO MIDSTREAM CORP
32,600$374.0M3.38%Put
811
AMANTERO MIDSTREAM CORP
32,600$374.0M3.38%Call
812
DINDINE BRANDS GLOBAL INC
3,903$373.0M3.38%
813
PENNPENN NATL GAMING INC
19,376$373.0M3.38%
814
CONTAINER STORE GROUP INC
50,800$372.0M3.37%Put
815
FPIFARMLAND PARTNERS INC
52,600$371.0M3.36%Call
816
LTHM1EURLIVENT CORP
53,411$370.0M3.35%
817
CTLEURCENTURYLINK INC
31,504$370.0M3.35%
818
ANIKANIKA THERAPEUTICS INC
9,100$370.0M3.35%Call
819
WTWISDOMTREE INVTS INC
59,890$370.0M3.35%
820
EDITEDITAS MEDICINE INC
14,900$369.0M3.34%Call
821
HEXO CORP
69,400$369.0M3.34%Call
822
FIDELITY NATL INFORMATION SV
3,000$368.0M3.33%Call
823
MCRBSERES THERAPEUTICS INC
114,300$368.0M3.33%Call
824
KLACKLA-TENCOR CORP
3,100$366.0M3.31%Call
825
AMERICAN AXLE & MFG HLDGS IN
28,600$365.0M3.30%Put
826
SFIXSTITCH FIX INC
11,400$365.0M3.30%Put
827
FBPFIRST BANCORP N C
10,000$364.0M3.29%Call
828
PROPETRO HLDG CORP
17,600$364.0M3.29%Put
829
SRCUSDSPIRIT RLTY CAP INC NEW
8,500$363.0M3.28%
830
MTGMGIC INVT CORP WIS
27,519$362.0M3.28%
831
ELFE L F BEAUTY INC
25,700$362.0M3.28%Put
832
AEGON N V
73,200$362.0M3.28%Call
833
MAXREURMAXAR TECHNOLOGIES INC
46,146$361.0M3.27%
834
HOSTESS BRANDS INC
25,000$361.0M3.27%Call
835
ADIANALOG DEVICES INC
3,200$361.0M3.27%Put
836
INGNINOGEN INC
5,400$361.0M3.27%Call
837
NORTHERN TR CORP
4,000$360.0M3.26%Call
838
AMANTERO MIDSTREAM CORP
31,403$360.0M3.26%
839
ROSTROSS STORES INC
3,617$359.0M3.25%
840
TREXTREX CO INC
5,000$359.0M3.25%Call
841
MERCURY SYS INC
5,100$359.0M3.25%Put
842
WABTEC CORP
5,000$359.0M3.25%Call
843
ALTRA INDL MOTION CORP
10,000$359.0M3.25%Put
844
HOSTESS BRANDS INC
24,800$358.0M3.24%Put
845
GDDYGODADDY INC
5,100$358.0M3.24%Call
846
ALRMALARM COM HLDGS INC
6,668$357.0M3.23%
847
PEOPLES UTD FINL INC
21,300$357.0M3.23%Put
848
SKTTANGER FACTORY OUTLET CTRS I
21,934$356.0M3.22%
849
ALNYALNYLAM PHARMACEUTICALS INC
4,900$356.0M3.22%Put
850
WUBAUSD58 COM INC
5,708$355.0M3.21%
851
INSGEURINSEEGO CORP
74,065$355.0M3.21%
852
SIENTRA INC
57,700$355.0M3.21%Put
853
AUDCAUDIOCODES LTD
22,900$354.0M3.20%
854
OSPNONESPAN INC
25,000$354.0M3.20%Put
855
FBINFORTUNE BRANDS HOME & SEC IN
6,200$354.0M3.20%Call
856
PNRPENTAIR PLC
9,500$353.0M3.19%Put
857
PPTPREMIER INC
9,000$352.0M3.19%Call
858
DENBURY RES INC
284,200$352.0M3.19%Call
859
ADAMAS PHARMACEUTICALS INC
56,700$352.0M3.19%Call
860
RVLVREVOLVE GROUP INC
10,200$352.0M3.19%Call
861
CATALENT INC
6,500$352.0M3.19%Put
862
FLOFLOWERS FOODS INC
15,100$351.0M3.18%Call
863
CORE LABORATORIES N V
6,700$350.0M3.17%Call
864
CVETUSDCOVETRUS INC
14,310$350.0M3.17%
865
TEEKAY LNG PARTNERS L P
24,700$348.0M3.15%Call
866
PDPAGERDUTY INC
7,400$348.0M3.15%Call
867
CCKCROWN HOLDINGS INC
5,700$348.0M3.15%Put
868
MMM3M CO
2,000$347.0M3.14%Put
869
ACIWACI WORLDWIDE INC
10,100$347.0M3.14%Call
870
TAUBMAN CTRS INC
8,490$347.0M3.14%
871
LOGMEIN INC
4,700$346.0M3.13%Put
872
TAT&T INC
10,328$346.0M3.13%
873
ARLPALLIANCE RES PARTNER L P
20,400$346.0M3.13%Call
874
CCCHEMOURS CO
14,355$345.0M3.12%
875
LOBLIVE OAK BANCSHARES INC
20,000$343.0M3.10%Call
876
SBSCOMPANHIA DE SANEAMENTO BASI
28,100$342.0M3.09%Call
877
PEOPLES UTD FINL INC
20,400$342.0M3.09%Call
878
BBYBEST BUY INC
4,900$342.0M3.09%Call
879
HABIT RESTAURANTS INC
32,555$342.0M3.09%
880
VENATOR MATLS PLC
64,398$341.0M3.09%
881
HUBSHUBSPOT INC
2,000$341.0M3.09%Put
882
ACCELERATE DIAGNOSTICS INC
14,900$341.0M3.09%Put
883
MGNXMACROGENICS INC
20,100$341.0M3.09%Call
884
LGFEURLIONS GATE ENTMNT CORP
27,850$341.0M3.09%
885
CALCALERES INC
17,100$341.0M3.09%Call
886
BEBLOOM ENERGY CORP
27,800$341.0M3.09%Put
887
EXPEDITORS INTL WASH INC
4,500$341.0M3.09%Put
888
SEASEABRIDGE GOLD INC
25,196$341.0M3.09%
889
BURLBURLINGTON STORES INC
2,000$340.0M3.08%Call
890
CELESTICA INC
49,800$340.0M3.08%Put
891
NEW YORK MTG TR INC
54,800$340.0M3.08%Put
892
IMMRIMMERSION CORP
44,700$340.0M3.08%Call
893
VERSUM MATLS INC
6,600$340.0M3.08%Put
894
SMFGSUMITOMO MITSUI FINL GROUP I
48,000$339.0M3.07%Put
895
AKBAAKEBIA THERAPEUTICS INC
70,077$339.0M3.07%
896
EOLSEVOLUS INC
23,140$338.0M3.06%
897
UECURANIUM ENERGY CORP
246,200$337.0M3.05%Call
898
NOBLE CORP PLC
180,100$337.0M3.05%Call
899
PHGKONINKLIJKE PHILIPS N V
7,700$336.0M3.04%Put
900
GNLGLOBAL NET LEASE INC
17,100$336.0M3.04%Call
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