GROUP ONE TRADING LLC Q1 2021 Filing

Filed May 12, 2021

Portfolio Value

$67.5M

Holdings

7,548

Report Date

Q1 2021

Filing Type

13F-HR

All Holdings (7,548 positions)

#	Stock	Shares	Value	% Portfolio	Type
2201	EMBJEMBRAER S.A.	238,837	$2.4M	3.54%
2202	MCHPMICROCHIP TECHNOLOGY INC.	15,400	$2.4M	3.54%	Call
2203	BBDBANCO BRADESCO S A	508,600	$2.4M	3.54%	Call
2204	—QIWI PLC	224,200	$2.4M	3.54%	Put
2205	PDPAGERDUTY INC	59,300	$2.4M	3.53%	Call
2206	—COMERICA INC	33,200	$2.4M	3.53%	Put
2207	—GX ACQUISITION CORP	236,100	$2.4M	3.53%	Call
2208	GOOSCANADA GOOSE HLDGS INC	60,600	$2.4M	3.52%	Put
2209	DECKDECKERS OUTDOOR CORP	7,200	$2.4M	3.52%	Put
2210	TDTORONTO DOMINION BK ONT	36,400	$2.4M	3.52%	Put
2211	GPREGREEN PLAINS INC	87,500	$2.4M	3.51%	Put
2212	TECKTECK RESOURCES LTD	123,500	$2.4M	3.51%	Put
2213	AHCOADAPTHEALTH CORP	64,400	$2.4M	3.51%	Call
2214	ONCBEIGENE LTD	6,800	$2.4M	3.51%	Call
2215	—SKECHERS U S A INC	56,700	$2.4M	3.50%	Put
2216	CHKPCHECK POINT SOFTWARE TECH LT	21,100	$2.4M	3.50%	Call
2217	YPFYPF SOCIEDAD ANONIMA	574,164	$2.4M	3.50%
2218	—XL FLEET CORP	262,500	$2.4M	3.49%	Call
2219	—TEAM INC	204,400	$2.4M	3.49%	Call
2220	—ARMOUR RESIDENTIAL REIT INC	193,200	$2.4M	3.49%	Put
2221	FUNCEDAR FAIR L P	47,395	$2.4M	3.49%
2222	ATIALLEGHENY TECHNOLOGIES INC	111,600	$2.4M	3.48%	Call
2223	HEHAWAIIAN ELEC INDUSTRIES	52,900	$2.4M	3.48%	Call
2224	BBIOBRIDGEBIO PHARMA INC	38,100	$2.3M	3.48%	Call
2225	—MCAFEE CORP	103,200	$2.3M	3.48%	Call
2226	—CM LIFE SCIENCES INC	157,500	$2.3M	3.47%	Call
2227	QUREUNIQURE NV	69,500	$2.3M	3.47%	Put
2228	4I1PHILIP MORRIS INTL INC	26,379	$2.3M	3.47%
2229	YRIYAMANA GOLD INC	539,121	$2.3M	3.47%
2230	—DYCOM INDS INC	25,200	$2.3M	3.47%	Call
2231	CAJPYCANON INC	102,700	$2.3M	3.46%	Call
2232	ISRGINTUIT	6,100	$2.3M	3.46%	Call
2233	RRRRED ROCK RESORTS INC	71,700	$2.3M	3.46%	Call
2234	ELDELDORADO GOLD CORP NEW	215,833	$2.3M	3.45%
2235	SOYSUNOPTA INC	157,441	$2.3M	3.44%
2236	—APARTMENT INCOME REIT CORP	54,300	$2.3M	3.44%	Call
2237	AMBAAMBARELLA INC	23,100	$2.3M	3.43%	Call
2238	—IRON MTN INC NEW	62,600	$2.3M	3.43%	Put
2239	AMHAMERICAN HOMES 4 RENT	69,400	$2.3M	3.43%	Call
2240	BFLYBUTTERFLY NETWORK INC	137,500	$2.3M	3.43%	Put
2241	AYXEURALTERYX INC	27,875	$2.3M	3.43%
2242	—BLUCORA INC	138,800	$2.3M	3.42%	Put
2243	CMICUMMINS INC	8,900	$2.3M	3.42%	Call
2244	URIUNITED RENTALS INC	7,000	$2.3M	3.41%	Call
2245	—SMUCKER J M CO	18,200	$2.3M	3.41%	Put
2246	CAKECHEESECAKE FACTORY INC	39,300	$2.3M	3.41%	Put
2247	—CHEFS WHSE INC	75,400	$2.3M	3.40%	Call
2248	BMBLBUMBLE INC	36,800	$2.3M	3.40%	Put
2249	ZVRAKEMPHARM INC	249,300	$2.3M	3.40%	Call
2250	SPGIS&P GLOBAL INC	6,500	$2.3M	3.40%	Put
2251	IRINGERSOLL RAND INC	46,500	$2.3M	3.39%	Call
2252	—NUVASIVE INC	34,900	$2.3M	3.39%	Put
2253	HPHELMERICH & PAYNE INC	84,781	$2.3M	3.39%
2254	—INPHI CORP	12,800	$2.3M	3.38%	Put
2255	IONSIONIS PHARMACEUTICALS INC	50,800	$2.3M	3.38%	Put
2256	BWBABCOCK & WILCOX ENTERPRISES	241,100	$2.3M	3.38%	Put
2257	—GRUBHUB INC	38,000	$2.3M	3.38%	Call
2258	SIVBEURSVB FINANCIAL GROUP	4,616	$2.3M	3.38%
2259	—XL FLEET CORP	253,700	$2.3M	3.37%	Put
2260	—DMY TECHNOLOGY GROUP INC II	154,700	$2.3M	3.37%	Call
2261	MDLZMONDELEZ INTL INC	38,800	$2.3M	3.36%	Put
2262	UNGUSDUNITED STS NAT GAS FD LP	236,848	$2.3M	3.36%
2263	EHCENCOMPASS HEALTH CORP	27,700	$2.3M	3.36%	Call
2264	PRLBPROTO LABS INC	18,600	$2.3M	3.35%	Call
2265	ACADACADIA PHARMACEUTICALS INC	87,788	$2.3M	3.35%
2266	—FINSERV ACQUISITION CORP	172,700	$2.3M	3.35%	Call
2267	—SUMO LOGIC INC	119,900	$2.3M	3.35%	Put
2268	XELXCEL ENERGY INC	34,000	$2.3M	3.35%	Call
2269	—2U INC	59,100	$2.3M	3.35%	Put
2270	AOSSMITH A O CORP	33,400	$2.3M	3.34%	Put
2271	PTCPTC INC	16,400	$2.3M	3.34%	Call
2272	SATSECHOSTAR CORP	94,000	$2.3M	3.34%	Call
2273	CORAMERISOURCEBERGEN CORP	19,100	$2.3M	3.34%	Call
2274	—PLURALSIGHT INC	100,900	$2.3M	3.34%	Call
2275	—CRESCENT ACQUISITION CORP	223,700	$2.3M	3.33%	Call
2276	ERIIENERGY RECOVERY INC	122,700	$2.3M	3.33%	Call
2277	—SHIFT TECHNOLOGIES INC	270,200	$2.2M	3.33%	Call
2278	ARMKARAMARK	59,500	$2.2M	3.33%	Call
2279	—PUBLIC SVC ENTERPRISE GRP IN	37,300	$2.2M	3.33%	Call
2280	AGIALAMOS GOLD INC NEW	287,100	$2.2M	3.32%	Put
2281	CBRECBRE GROUP INC	28,300	$2.2M	3.32%	Put
2282	CELHCELSIUS HLDGS INC	46,510	$2.2M	3.31%
2283	—ZIOPHARM ONCOLOGY INC	620,900	$2.2M	3.31%	Call
2284	—STAMPS COM INC	11,200	$2.2M	3.31%	Put
2285	—CHINA LIFE INS CO LTD	214,500	$2.2M	3.31%	Put
2286	MTZMASTEC INC	23,800	$2.2M	3.30%	Call
2287	LBRTLIBERTY OILFIELD SVCS INC	197,033	$2.2M	3.30%
2288	CVECENOVUS ENERGY INC	295,800	$2.2M	3.29%	Call
2289	—QURATE RETAIL INC	189,100	$2.2M	3.29%	Call
2290	—EDGEWELL PERS CARE CO	56,100	$2.2M	3.29%	Put
2291	MCHPMICROCHIP TECHNOLOGY INC.	14,300	$2.2M	3.29%	Put
2292	RDWRRADWARE LTD	85,000	$2.2M	3.28%	Put
2293	CXCEMEX SAB DE CV	318,000	$2.2M	3.28%	Call
2294	ESPRESPERION THERAPEUTICS INC NE	78,900	$2.2M	3.28%	Call
2295	HSTHOST HOTELS & RESORTS INC	131,300	$2.2M	3.28%	Call
2296	BFHALLIANCE DATA SYSTEMS CORP	19,700	$2.2M	3.27%	Put
2297	URIUNITED RENTALS INC	6,700	$2.2M	3.27%	Put
2298	—MAGELLAN MIDSTREAM PRTNRS LP	50,800	$2.2M	3.26%	Put
2299	GOOSCANADA GOOSE HLDGS INC	55,800	$2.2M	3.24%	Call
2300	—FLY LEASING LTD	129,900	$2.2M	3.24%	Call

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