GROUP ONE TRADING LLC Q1 2021 Filing

Filed May 12, 2021

Portfolio Value

$67.5T

Holdings

7,548

Report Date

Q1 2021

Filing Type

13F-HR

All Holdings (7,548 positions)

#StockSharesValue% PortfolioType
101
NEPTUNE WELLNESS SOLUTIONS I
708,300$928.0M0.00%Call
102
ERIIENERGY RECOVERY INC
50,500$926.0M0.00%Put
103
ROOTGBPROOT INC
72,647$925.0M0.00%
104
MEOHMETHANEX CORP
25,100$924.0M0.00%Call
105
ALTITUDE ACQUISITION CORP
91,900$922.0M0.00%Put
106
KRATON CORPORATION
25,198$922.0M0.00%
107
PLDPROLOGIS INC.
8,700$922.0M0.00%Put
108
ZBRAZEBRA TECHNOLOGIES CORPORATI
1,900$922.0M0.00%Put
109
VOXX INTL CORP
48,300$921.0M0.00%Call
110
LOGILOGITECH INTL S A
8,818$921.0M0.00%
111
SBLKSTAR BULK CARRIERS CORP.
62,600$919.0M0.00%Call
112
CALMCAL MAINE FOODS INC
23,900$918.0M0.00%Call
113
SILVER SPIKE ACQUISITION COR
50,000$918.0M0.00%Put
114
KLICKULICKE & SOFFA INDS INC
18,700$918.0M0.00%Call
115
VIEW INC
123,500$914.0M0.00%Put
116
BACVERIZON COMMUNICATIONS INC
15,722$914.0M0.00%
117
GBCIGLACIER BANCORP INC NEW
16,000$913.0M0.00%Call
118
MCEWEN MNG INC
877,520$913.0M0.00%
119
SELECTA BIOSCIENCES INC
201,700$913.0M0.00%Call
120
SFLSFL CORPORATION LTD
113,700$912.0M0.00%Put
121
RADIUS HEALTH INC
43,700$912.0M0.00%Put
122
LOVELOVESAC COMPANY
16,100$911.0M0.00%Call
123
MARINUS PHARMACEUTICALS INC
58,800$910.0M0.00%Put
124
HUBSHUBSPOT INC
2,000$908.0M0.00%Put
125
WRAPWRAP TECHNOLOGIES INC
163,200$907.0M0.00%Call
126
WESWESTERN MIDSTREAM PARTNERS L
48,700$905.0M0.00%Put
127
BRIGHTCOVE INC
44,800$901.0M0.00%Put
128
NEXTGEN ACQUISITION CORP
90,600$899.0M0.00%Put
129
MNKDMANNKIND CORP
229,200$898.0M0.00%Call
130
YELLOW CORP
102,000$897.0M0.00%Put
131
SVMSILVERCORP METALS INC
182,700$897.0M0.00%Put
132
NGLNGL ENERGY PARTNERS LP
439,500$897.0M0.00%Put
133
SYFSYNCHRONY FINANCIAL
22,068$897.0M0.00%
134
VOCERA COMMUNICATIONS INC
23,300$896.0M0.00%Call
135
RCKTROCKET PHARMACEUTICALS INC
20,200$896.0M0.00%Put
136
TRILLIUM THERAPEUTICS INC
83,400$896.0M0.00%Put
137
BUNGE LIMITED
11,300$896.0M0.00%Put
138
OLLIES BARGAIN OUTLET HLDGS
10,300$896.0M0.00%Call
139
GDOTGREEN DOT CORP
19,550$895.0M0.00%
140
GRANITE CONSTR INC
22,200$894.0M0.00%Call
141
RGENREPLIGEN CORP
4,600$894.0M0.00%Call
142
BRAINSTORM CELL THERAPEUTICS
232,600$891.0M0.00%Call
143
YPFYPF SOCIEDAD ANONIMA
216,900$891.0M0.00%Put
144
SOHUSOHU COM LTD
56,700$891.0M0.00%Call
145
USACUSA COMPRESSION PARTNERS LP
58,100$890.0M0.00%Call
146
EDCONSOLIDATED EDISON INC
11,900$890.0M0.00%Put
147
ALNYALNYLAM PHARMACEUTICALS INC
6,300$890.0M0.00%Call
148
VSTOEURVISTA OUTDOOR INC
27,758$890.0M0.00%
149
SAJACOMPANHIA DE SANEAMENTO BASI
121,407$890.0M0.00%
150
RFREGIONS FINANCIAL CORP NEW
42,900$886.0M0.00%Put
151
PDPAGERDUTY INC
22,000$885.0M0.00%Put
152
TTITETRA TECHNOLOGIES INC DEL
368,300$884.0M0.00%Put
153
QIWQIWI PLC
82,900$883.0M0.00%
154
PROSHARES TR
90,900$882.0M0.00%Call
155
VIACOMCBS INC
18,700$882.0M0.00%Put
156
APTOSE BIOSCIENCES INC
146,900$878.0M0.00%Call
157
CDWCDW CORP
5,300$878.0M0.00%Call
158
SILVERCREST METALS INC
108,700$878.0M0.00%Put
159
CNXCNX RES CORP
59,530$875.0M0.00%
160
DLTRDOLLAR TREE INC
7,635$874.0M0.00%
161
OGEOGE ENERGY CORP
27,000$874.0M0.00%Call
162
CPNGCOUPANG INC
17,700$874.0M0.00%Put
163
CRNTCERAGON NETWORKS LTD
231,600$873.0M0.00%Call
164
QUOTIENT TECHNOLOGY INC
53,300$871.0M0.00%Call
165
PSMTPRICESMART INC
900$871.0M0.00%Put
166
ITRNITURAN LOCATION AND CONTROL
41,000$870.0M0.00%Put
167
NOGNORTHERN OIL AND GAS INC MN
72,000$870.0M0.00%Put
168
NIUNIU TECHNOLOGIES
23,700$869.0M0.00%Put
169
IHRTIHEARTMEDIA INC
47,800$868.0M0.00%Call
170
UDNINVESCO DB US DLR INDEX TR
41,464$868.0M0.00%
171
AMDADVANCED MICRO DEVICES INC
11,062$868.0M0.00%
172
XRXXEROX HOLDINGS CORP
35,700$866.0M0.00%Call
173
MOHAWK INDS INC
4,500$865.0M0.00%Call
174
UCTTULTRA CLEAN HLDGS INC
14,900$865.0M0.00%Call
175
LAMRLAMAR ADVERTISING CO NEW
9,200$864.0M0.00%Call
176
ATLANTICA SUSTAINABLE INFR P
23,600$864.0M0.00%Call
177
AEROJET ROCKETDYNE HLDGS INC
18,400$864.0M0.00%Put
178
ISHARES GOLD TR
53,100$863.0M0.00%Put
179
GAN LTD
47,400$863.0M0.00%Put
180
ESTAESTABLISHMENT LABS HLDGS INC
13,800$863.0M0.00%Call
181
AMAZON COM INC
278,600$862.0M0.00%Call
182
LYGLLOYDS BANKING GROUP PLC
371,700$862.0M0.00%Call
183
ALSNALLISON TRANSMISSION HLDGS I
21,100$862.0M0.00%Call
184
MITEK SYS INC
59,000$860.0M0.00%Call
185
EIGER BIOPHARMACEUTICALS INC
97,100$859.0M0.00%Call
186
JKSJINKOSOLAR HLDG CO LTD
20,579$858.0M0.00%
187
RPDRAPID7 INC
11,500$858.0M0.00%Call
188
AERIE PHARMACEUTICALS INC
4,800$858.0M0.00%Call
189
PLURISTEM THERAPEUTICS INC
179,700$857.0M0.00%Put
190
FORESIGHT AUTONOMOUS HLDGS L
136,600$854.0M0.00%Put
191
TRTN-PATRITON INTL LTD
15,503$853.0M0.00%
192
RADIUS HEALTH INC
40,900$853.0M0.00%Call
193
DERMTECH INC
16,800$853.0M0.00%Call
194
ZYMEWORKS INC
27,000$853.0M0.00%Put
195
WHOLE EARTH BRANDS INC
65,300$852.0M0.00%Call
196
LOVELOVESAC COMPANY
15,000$849.0M0.00%Put
197
ACADACADIA PHARMACEUTICALS INC
32,900$849.0M0.00%Call
198
EVERBRIDGE INC
7,000$848.0M0.00%Put
199
WENDYS CO
41,800$847.0M0.00%Put
200
KPTIKARYOPHARM THERAPEUTICS INC
80,400$846.0M0.00%Put
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