GROUP ONE TRADING LLC Q2 2021 Filing

Filed August 10, 2021

Portfolio Value

$82.9M

Holdings

8,103

Report Date

Q2 2021

Filing Type

13F-HR

All Holdings (8,103 positions)

#	Stock	Shares	Value	% Portfolio	Type
1201	VTSIVIRTRA INC	47,700	$352K	0.42%	Call
1202	COHREURCOHERENT INC	1,332	$352K	0.42%
1203	ARAYACCURAY INC	77,900	$352K	0.42%	Call
1204	OMCOMNICOM GROUP INC	4,400	$352K	0.42%	Put
1205	MHOM/I HOMES INC	6,000	$352K	0.42%	Call
1206	ZKINZK INTL GROUP CO LTD	82,100	$352K	0.42%	Put
1207	—AYRO INC	71,900	$351K	0.42%	Put
1208	TXTTEXTRON INC	5,100	$351K	0.42%	Call
1209	ERFGBPENERPLUS CORP	48,827	$351K	0.42%
1210	RJFRAYMOND JAMES FINL INC	2,700	$351K	0.42%	Put
1211	MFICLAPOLLO INVT CORP	25,700	$351K	0.42%	Call
1212	CVICVR ENERGY INC	19,500	$350K	0.42%	Call
1213	—WESTERN ASSET MTG CAP CORP	107,800	$350K	0.42%	Call
1214	CDWCDW CORP	2,000	$349K	0.42%	Call
1215	GSGISHARES S&P GSCI COMMODITY-	21,675	$349K	0.42%
1216	COURCOURSERA INC	8,800	$348K	0.42%	Put
1217	SELBUSDSELECTA BIOSCIENCES INC	83,201	$348K	0.42%
1218	CLWCLEARWATER PAPER CORP	12,000	$348K	0.42%	Call
1219	—INSPIRE MED SYS INC	1,800	$348K	0.42%	Put
1220	ONTOONTO INNOVATION INC	4,758	$348K	0.42%
1221	PRGPROG HOLDINGS INC	7,200	$347K	0.42%	Call
1222	—ANSYS INC	1,000	$347K	0.42%	Put
1223	NEWTHNEWTEK BUSINESS SVCS CORP	9,900	$346K	0.42%	Call
1224	—GRACE W R & CO DEL NEW	5,000	$346K	0.42%	Call
1225	—XINYUAN REAL ESTATE CO LTD	130,500	$346K	0.42%	Put
1226	—1LIFE HEALTHCARE INC	10,469	$346K	0.42%
1227	LDOSLEIDOS HOLDINGS INC	3,400	$344K	0.41%	Put
1228	GDGENERAL DYNAMICS CORP	1,829	$344K	0.41%
1229	—ASPEN TECHNOLOGY INC	2,500	$344K	0.41%	Call
1230	GDYNGRID DYNAMICS HLDGS INC	22,900	$344K	0.41%	Call
1231	—TPI COMPOSITES INC	7,100	$344K	0.41%	Call
1232	IMMRIMMERSION CORP	39,183	$344K	0.41%
1233	PPLPEMBINA PIPELINE CORP	10,800	$343K	0.41%
1234	—ACCELERATE DIAGNOSTICS INC	42,600	$343K	0.41%	Put
1235	—ION GEOPHYSICAL CORP	164,000	$343K	0.41%	Call
1236	—BROOKFIELD PROPERTY PARTRS L	18,100	$343K	0.41%	Call
1237	—ORCHARD THERAPEUTICS PLC	78,200	$343K	0.41%	Put
1238	—FORESIGHT AUTONOMOUS HLDGS L	80,800	$343K	0.41%	Put
1239	GRMNGARMIN LTD	2,370	$343K	0.41%
1240	FCNFTI CONSULTING INC	2,500	$342K	0.41%	Put
1241	PLXPROTALIX BIOTHERAPEUTICS INC	179,088	$342K	0.41%
1242	—DEL TACO RESTAURANTS INC NEW	34,210	$342K	0.41%
1243	—PROS HOLDINGS INC	7,500	$342K	0.41%	Call
1244	VRSNVERISIGN INC	1,500	$342K	0.41%	Put
1245	BCELATRECA INC	40,130	$342K	0.41%
1246	CNMDCONMED CORP	2,485	$342K	0.41%
1247	SNXSYNNEX CORP	2,800	$341K	0.41%	Call
1248	CBCVR ENERGY INC	18,997	$341K	0.41%
1249	DDDUPONT DE NEMOURS INC	4,411	$341K	0.41%
1250	KFYKORN FERRY	4,700	$341K	0.41%	Call
1251	CODICOMPASS DIVERSIFIED	13,326	$340K	0.41%
1252	—U S GLOBAL INVS INC	54,900	$340K	0.41%	Call
1253	—9 METERS BIOPHARMA INC	309,099	$340K	0.41%
1254	KBRKBR INC	8,900	$340K	0.41%	Call
1255	TRI4EURTHOMSON REUTERS CORP.	3,412	$339K	0.41%
1256	—BERRY GLOBAL GROUP INC	5,200	$339K	0.41%	Call
1257	BPOPPOPULAR INC	4,500	$338K	0.41%	Call
1258	—GENETIC TECHNOLOGIES LTD	79,510	$338K	0.41%
1259	—WILLSCOT MOBIL MINI HLDNG CO	12,100	$337K	0.41%	Put
1260	QSIQUANTUM SI INC	27,500	$337K	0.41%
1261	—VALLEY NATL BANCORP	25,100	$337K	0.41%	Call
1262	—TRIVAGO N V	101,500	$336K	0.41%	Call
1263	—SURFACE ONCOLOGY INC	45,100	$336K	0.41%	Put
1264	—GLADSTONE CAPITAL CORP	29,400	$336K	0.41%	Call
1265	ZEUSOLYMPIC STEEL INC	11,447	$336K	0.41%
1266	FLEXFLEX LTD	18,800	$336K	0.41%	Put
1267	VRNSVARONIS SYS INC	5,806	$335K	0.40%
1268	MTLSMATERIALISE NV	13,900	$335K	0.40%	Call
1269	CLHCLEAN HARBORS INC	3,600	$335K	0.40%	Call
1270	RRXREGAL BELOIT CORP	2,500	$334K	0.40%	Put
1271	WDWALKER & DUNLOP INC	3,200	$334K	0.40%	Call
1272	—AMERICAN VRTUAL CLOUD TECH I	55,500	$334K	0.40%	Call
1273	VICIVICI PPTYS INC	10,763	$334K	0.40%
1274	UANCVR PARTNERS LP	5,400	$334K	0.40%	Call
1275	OCOWENS CORNING NEW	3,400	$333K	0.40%	Put
1276	BNSBANK NOVA SCOTIA B C	5,100	$332K	0.40%	Put
1277	CPRXCATALYST PHARMACEUTICALS INC	57,800	$332K	0.40%	Put
1278	BAHBOOZ ALLEN HAMILTON HLDG COR	3,900	$332K	0.40%	Put
1279	—STRONGBRIDGE BIOPHARMA PLC	111,500	$331K	0.40%	Call
1280	IMVTIMMUNOVANT INC	31,268	$331K	0.40%
1281	CRBPCORBUS PHARMACEUTICALS HLDGS	180,600	$331K	0.40%	Call
1282	—BEST INC	185,800	$331K	0.40%	Put
1283	—NABRIVA THERAPEUTICS PLC	244,200	$330K	0.40%	Call
1284	—CHIMERA INVT CORP	21,900	$330K	0.40%	Put
1285	DAOYOUDAO INC	14,300	$330K	0.40%	Put
1286	AMRCAMERESCO INC	5,261	$330K	0.40%
1287	—PREFERRED APT CMNTYS INC	33,820	$330K	0.40%
1288	WEXWEX INC	1,700	$330K	0.40%	Call
1289	XRAYDENTSPLY SIRONA INC	5,200	$329K	0.40%	Put
1290	NPKINEWPARK RES INC	95,200	$329K	0.40%	Call
1291	OUTOUTFRONT MEDIA INC	13,691	$329K	0.40%
1292	AAOIAPPLIED OPTOELECTRONICS INC	38,800	$329K	0.40%	Call
1293	—HORIZON ACQUISITION CORPORAT	33,529	$328K	0.40%
1294	—PETIQ INC	8,500	$328K	0.40%	Put
1295	—COMPANIA DE MINAS BUENAVENTU	36,200	$328K	0.40%	Put
1296	—CTI BIOPHARMA CORP	131,200	$328K	0.40%	Call
1297	—ENERPLUS CORP	45,500	$327K	0.39%	Call
1298	—EMCORE CORP	35,400	$326K	0.39%	Put
1299	TRUPTRUPANION INC	2,829	$326K	0.39%
1300	T7DTRANSDIGM GROUP INC	504	$326K	0.39%

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