GROUP ONE TRADING LLC Q1 2019 Filing

Filed May 13, 2019

Portfolio Value

$16.7B

Holdings

4,769

Report Date

Q1 2019

Filing Type

13F-HR

All Holdings (4,769 positions)

#StockSharesValue% PortfolioType
901
WELBILT INC
19,800$324.0M1.94%Put
902
GRMNGARMIN LTD
3,749$324.0M1.94%
903
HAINHAIN CELESTIAL GROUP INC
14,000$324.0M1.94%Put
904
LEVILEVI STRAUSS & CO NEW
13,700$323.0M1.94%Put
905
TREEHOUSE FOODS INC
5,000$323.0M1.94%Call
906
EDITEDITAS MEDICINE INC
13,200$323.0M1.94%Call
907
DBAINVESCO DB MLTI SECTR CMMTY
19,600$323.0M1.94%Put
908
BAKBRASKEM S A
12,497$323.0M1.94%
909
JUMEI INTL HLDG LTD
136,700$323.0M1.94%Call
910
NGDNEW GOLD INC CDA
373,987$322.0M1.93%
911
GRAN TIERRA ENERGY INC
141,900$322.0M1.93%Call
912
CSXCSX CORP
4,300$322.0M1.93%Put
913
BOXBOX INC
16,651$322.0M1.93%
914
DVNDEVON ENERGY CORP NEW
10,200$322.0M1.93%Put
915
QSRRESTAURANT BRANDS INTL INC
4,936$321.0M1.93%
916
BTOB2GOLD CORP
113,745$320.0M1.92%
917
NATIONAL INSTRS CORP
7,200$319.0M1.91%Call
918
IDEANOMICS INC
164,600$319.0M1.91%Call
919
IPGPIPG PHOTONICS CORP
2,100$319.0M1.91%Put
920
GTLSCHART INDS INC
3,526$319.0M1.91%
921
RDNRADIAN GROUP INC
15,400$319.0M1.91%Call
922
HBC2HSBC HLDGS PLC
7,825$318.0M1.91%
923
FOSLFOSSIL GROUP INC
23,119$317.0M1.90%
924
BLDRBUILDERS FIRSTSOURCE INC
23,800$317.0M1.90%Put
925
NEUROTROPE INC
58,100$317.0M1.90%Call
926
NVEEUSDNV5 GLOBAL INC
5,339$317.0M1.90%
927
ANDEAVOR LOGISTICS LP
9,000$317.0M1.90%Put
928
OZKBANK OZK
10,900$316.0M1.90%Call
929
GLREGREENLIGHT CAPITAL RE LTD
29,000$315.0M1.89%Put
930
PORTOLA PHARMACEUTICALS INC
9,092$315.0M1.89%
931
MCEWEN MNG INC
209,400$314.0M1.88%Put
932
SMGSCOTTS MIRACLE GRO CO
4,000$314.0M1.88%Call
933
EYENATIONAL VISION HLDGS INC
10,000$314.0M1.88%Call
934
CWENCLEARWAY ENERGY INC
21,600$314.0M1.88%Call
935
ASMBASSEMBLY BIOSCIENCES INC
15,965$314.0M1.88%
936
TAILORED BRANDS INC
40,000$314.0M1.88%Call
937
RGENREPLIGEN CORP
5,300$313.0M1.88%Call
938
HRLHORMEL FOODS CORP
7,000$313.0M1.88%Put
939
BURLBURLINGTON STORES INC
2,000$313.0M1.88%Call
940
NBRNABORS INDUSTRIES LTD
90,638$312.0M1.87%
941
AUPHAURINIA PHARMACEUTICALS INC
48,000$312.0M1.87%Call
942
GCP APPLIED TECHNOLOGIES INC
10,500$311.0M1.87%Call
943
SHELL MIDSTREAM PARTNERS L P
15,200$311.0M1.87%Call
944
CSTECAESARSTONE LTD
19,900$311.0M1.87%Put
945
PIIMPINJ INC
18,500$310.0M1.86%Put
946
RMBS*RAMBUS INC DEL
29,628$310.0M1.86%
947
REALPAGE INC
5,100$310.0M1.86%Call
948
TREXTREX CO INC
5,000$308.0M1.85%Call
949
CDWCDW CORP
3,200$308.0M1.85%Put
950
NVCRNOVOCURE LTD
6,400$308.0M1.85%Put
951
LIVENT CORP
25,100$308.0M1.85%Put
952
EHTHEHEALTH INC
4,942$308.0M1.85%
953
LNGCHENIERE ENERGY INC
4,500$308.0M1.85%Call
954
INSEEGO CORP
65,100$307.0M1.84%Call
955
JKSJINKOSOLAR HLDG CO LTD
17,063$307.0M1.84%
956
PBYIPUMA BIOTECHNOLOGY INC
7,900$306.0M1.84%Put
957
NUANCE COMMUNICATIONS INC
18,100$306.0M1.84%Put
958
CGNXCOGNEX CORP
6,000$305.0M1.83%Call
959
XECEURCIMAREX ENERGY CO
4,366$305.0M1.83%
960
BIDUNBAIDU INC
1,851$305.0M1.83%
961
PTCPTC INC
3,300$304.0M1.82%Put
962
PEOPLES UTD FINL INC
18,500$304.0M1.82%Call
963
NATNORDIC AMERICAN TANKERS LIMI
149,815$303.0M1.82%
964
PLUGPLUG POWER INC
126,100$303.0M1.82%Call
965
PTENPATTERSON UTI ENERGY INC
21,600$303.0M1.82%Call
966
HRTXHERON THERAPEUTICS INC
12,400$303.0M1.82%Put
967
ARCPEURVEREIT INC
36,245$303.0M1.82%
968
ZOGENIX INC
5,500$303.0M1.82%Put
969
APTIV PLC
3,800$302.0M1.81%Call
970
ZYNERBA PHARMACEUTICALS INC
55,800$302.0M1.81%Put
971
KTOSKRATOS DEFENSE & SEC SOLUTIO
19,316$302.0M1.81%
972
SDSANDRIDGE ENERGY INC
37,500$301.0M1.81%Call
973
22ND CENTY GROUP INC
175,700$300.0M1.80%Call
974
HOVHOVNANIAN ENTERPRISES INC
27,300$299.0M1.79%Call
975
BGC PARTNERS INC
56,100$298.0M1.79%Call
976
AYXEURALTERYX INC
3,545$297.0M1.78%
977
VTYVERINT SYS INC
4,964$297.0M1.78%
978
CANADIAN NAT RES LTD
10,800$297.0M1.78%Call
979
NV5 GLOBAL INC
5,000$297.0M1.78%Put
980
AMTAMERICAN TOWER CORP NEW
1,500$296.0M1.78%Call
981
SVMK INC
16,200$295.0M1.77%Call
982
GLADSTONE CAPITAL CORP
32,700$295.0M1.77%Call
983
QUANTENNA COMMUNICATIONS INC
12,100$294.0M1.76%Call
984
DAVE & BUSTERS ENTMT INC
5,900$294.0M1.76%Call
985
FIZZNATIONAL BEVERAGE CORP
5,100$294.0M1.76%Call
986
PENPENUMBRA INC
2,000$294.0M1.76%Call
987
ACMAECOM
9,900$294.0M1.76%Call
988
EDAPEDAP TMS S A
97,800$293.0M1.76%Call
989
RDWRRADWARE LTD
11,159$292.0M1.75%
990
TMUST MOBILE US INC
4,210$291.0M1.75%
991
APLEAPPLE HOSPITALITY REIT INC
17,839$291.0M1.75%
992
ETRNUSDEQUITRANS MIDSTREAM CORPORAT
13,320$290.0M1.74%
993
KRNTKORNIT DIGITAL LTD
12,165$290.0M1.74%
994
ADNTADIENT PLC
22,400$290.0M1.74%Put
995
LOGMEURLOGMEIN INC
3,620$290.0M1.74%
996
INFINERA CORPORATION
66,700$289.0M1.73%Call
997
MAG SILVER CORP
27,100$289.0M1.73%Call
998
AMRXAMNEAL PHARMACEUTICALS INC
20,400$289.0M1.73%Call
999
PROTEOSTASIS THERAPEUTICS IN
228,200$288.0M1.73%Put
1000
AGENUS INC
96,800$288.0M1.73%Call
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