GROUP ONE TRADING LLC Q2 2021 Filing

Filed August 10, 2021

Portfolio Value

$82.9B

Holdings

8,103

Report Date

Q2 2021

Filing Type

13F-HR

All Holdings (8,103 positions)

#StockSharesValue% PortfolioType
801
BECNUSDBEACON ROOFING SUPPLY INC
9,518$507.0M0.61%
802
ATLAS CORP
35,600$507.0M0.61%Put
803
ZYNERBA PHARMACEUTICALS INC
95,800$507.0M0.61%Put
804
ESTAESTABLISHMENT LABS HLDGS INC
5,800$507.0M0.61%Call
805
HIIHUNTINGTON INGALLS INDS INC
2,400$506.0M0.61%Call
806
DBAINVESCO DB US DLR INDEX TR
24,000$506.0M0.61%Call
807
SSS1EURLIFE STORAGE INC
4,703$505.0M0.61%
808
SCHNITZER STEEL INDS INC
10,300$505.0M0.61%Put
809
SGMOSANGAMO THERAPEUTICS INC
42,000$503.0M0.61%Put
810
SMSISMITH MICRO SOFTWARE INC
96,095$502.0M0.61%
811
RPT REALTY
38,700$502.0M0.61%Call
812
OTLYOATLY GROUP AB
20,500$501.0M0.60%Call
813
NVMINOVA MEASURING INSTRUMENTS L
4,868$501.0M0.60%
814
PRAAPRA GROUP INC
13,000$500.0M0.60%Put
815
PBFPBF ENERGY INC
32,700$500.0M0.60%Put
816
EIXEDISON INTL
8,648$500.0M0.60%
817
KTKT CORP
35,800$499.0M0.60%Put
818
PIERIS PHARMACEUTICALS INC
130,400$499.0M0.60%Put
819
AKBAAKEBIA THERAPEUTICS INC
131,400$498.0M0.60%Put
820
FMCFMC CORP
4,600$498.0M0.60%Put
821
LPGDORIAN LPG LTD
35,300$498.0M0.60%Call
822
CHIMERA INVT CORP
33,000$497.0M0.60%Call
823
PHILLIPS 66 PARTNERS LP
12,600$497.0M0.60%Call
824
BETTER WORLD ACQUISITION COR
49,700$497.0M0.60%Call
825
MLKNMILLER HERMAN INC
10,500$495.0M0.60%Call
826
FATEFATE THERAPEUTICS INC
5,700$495.0M0.60%Put
827
SECUREWORKS CORP
26,700$495.0M0.60%Call
828
CRCCANADIAN NAT RES LTD
13,645$495.0M0.60%
829
AMDADVANCED MICRO DEVICES INC
5,269,000$494.9M0.60%Call
830
AKERNA CORP
122,700$494.0M0.60%Put
831
VIRNETX HLDG CORP
115,100$491.0M0.59%Call
832
AGQPROSHARES TR II
17,510$490.0M0.59%
833
PATTERSON COS INC
16,100$489.0M0.59%Call
834
MNROMONRO INC
7,700$489.0M0.59%Call
835
JAMFJAMF HLDG CORP
14,572$489.0M0.59%
836
INSTALLED BLDG PRODS INC
4,000$489.0M0.59%Call
837
MSBMESABI TR
13,747$487.0M0.59%
838
PHYSICIANS RLTY TR
26,300$486.0M0.59%Call
839
NIELSEN HLDGS PLC
19,700$486.0M0.59%Put
840
INGING GROEP N.V.
36,600$485.0M0.59%Call
841
BLUCORA INC
28,000$485.0M0.59%Call
842
VIAVVIAVI SOLUTIONS INC
27,400$484.0M0.58%Call
843
GCOGENESCO INC
7,600$484.0M0.58%Call
844
XNETXUNLEI LTD
106,100$484.0M0.58%Call
845
NVDANVIDIA CORPORATION
604,500$483.7M0.58%Put
846
YUMYUM BRANDS INC
4,200$483.0M0.58%Put
847
WCCWESCO INTL INC
4,700$483.0M0.58%Put
848
JAGUAR HEALTH INC
304,900$482.0M0.58%Call
849
CAI INTERNATIONAL INC
8,600$482.0M0.58%Call
850
ITCIEURINTRA-CELLULAR THERAPIES INC
11,794$481.0M0.58%
851
MSG NETWORK INC
33,000$481.0M0.58%Put
852
INTEGER HLDGS CORP
5,100$480.0M0.58%Call
853
XYLXYLEM INC
3,999$480.0M0.58%
854
CCKCROWN HLDGS INC
4,700$480.0M0.58%Call
855
AGREE RLTY CORP
6,800$479.0M0.58%Call
856
RVPRETRACTABLE TECHNOLOGIES INC
41,400$479.0M0.58%Call
857
ACRSACLARIS THERAPEUTICS INC
27,200$478.0M0.58%Put
858
RCKTROCKET PHARMACEUTICALS INC
10,800$478.0M0.58%Put
859
CAPRCAPRICOR THERAPEUTICS INC
93,200$478.0M0.58%Put
860
INVHINVITATION HOMES INC
12,800$477.0M0.58%Call
861
IHS MARKIT LTD
4,238$477.0M0.58%
862
ICAD INC
27,500$476.0M0.57%Put
863
ABUSARBUTUS BIOPHARMA CORP
157,200$476.0M0.57%Call
864
LLOEWS CORP
8,700$475.0M0.57%Put
865
KKRKKR & CO INC
8,012$475.0M0.57%
866
NOVNOV INC
31,000$475.0M0.57%Put
867
BKNGBOOKING HOLDINGS INC
216,900$474.6M0.57%Put
868
WIDEOPENWEST INC
22,900$474.0M0.57%Call
869
MGYMAGNOLIA OIL & GAS CORP
30,300$474.0M0.57%Put
870
WTWISDOMTREE INVTS INC
76,223$473.0M0.57%
871
AVANOS MED INC
13,000$473.0M0.57%Call
872
TENNECO INC
24,500$473.0M0.57%Put
873
CLFDCLEARFIELD INC
12,600$472.0M0.57%Call
874
SONYSONY GROUP CORPORATION
4,852$472.0M0.57%
875
BENEFITFOCUS INC
33,500$472.0M0.57%Put
876
FATEFATE THERAPEUTICS INC
5,427$471.0M0.57%
877
FNFABRINET
4,900$470.0M0.57%Call
878
BANDBANDWIDTH INC
3,400$469.0M0.57%Put
879
NVONOVO-NORDISK A S
5,600$469.0M0.57%Put
880
UNIVERSAL HLTH SVCS INC
3,200$469.0M0.57%Put
881
FREEDOM HLDG CORP NEV
7,200$469.0M0.57%Call
882
CCEPCOCA-COLA EUROPACIFIC PARTNE
7,900$469.0M0.57%Call
883
ENVAENOVA INTL INC
13,700$469.0M0.57%Put
884
EQHEQUITABLE HLDGS INC
15,400$469.0M0.57%Call
885
NAM TAI PPTY INC
16,900$468.0M0.56%Put
886
UECURANIUM ENERGY CORP
175,700$467.0M0.56%Put
887
ICAHN ENTERPRISES LP
8,500$467.0M0.56%Call
888
OSPREY TECHNLGY AQUISTION CO
46,700$467.0M0.56%Call
889
LINDLINDBLAD EXPEDITIONS HLDGS I
29,200$467.0M0.56%Put
890
VOCERA COMMUNICATIONS INC
11,700$466.0M0.56%Call
891
XIFRNEXTERA ENERGY PARTNERS LP
6,100$466.0M0.56%Put
892
ZYMEWORKS INC
13,400$465.0M0.56%Put
893
PRFTUSDPERFICIENT INC
5,773$464.0M0.56%
894
OSURORASURE TECHNOLOGIES INC
45,800$464.0M0.56%Put
895
SBHSALLY BEAUTY HLDGS INC
21,000$463.0M0.56%Put
896
BDXBECTON DICKINSON & CO
1,900$462.0M0.56%
897
DOMTAR CORP
8,400$462.0M0.56%Put
898
TLVGRUPO TELEVISA S A B
32,297$461.0M0.56%
899
IGTINTERNATIONAL GAME TECHNOLOG
19,224$461.0M0.56%
900
TEEKAY CORPORATION
123,900$461.0M0.56%Put
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