GROUP ONE TRADING LLC Q1 2018 Filing

Filed May 11, 2018

Portfolio Value

$10.5M

Holdings

4,806

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (4,806 positions)

#	Stock	Shares	Value	% Portfolio	Type
3301	—COGINT INC	39,341	$98K	0.93%
3302	—ATHERSYS INC	53,399	$98K	0.93%
3303	—COTT CORP QUE	6,569	$97K	0.92%
3304	—AMERICAN CAMPUS CMNTYS INC	2,500	$97K	0.92%	Call
3305	PLUNPLUG POWER INC	51,112	$97K	0.92%
3306	—QUALITY CARE PPTYS INC	5,000	$97K	0.92%	Call
3307	DSXDIANA SHIPPING INC	26,500	$97K	0.92%	Put
3308	—ALDER BIOPHARMACEUTICALS INC	7,600	$97K	0.92%	Call
3309	KMXCARMAX INC	1,559	$97K	0.92%
3310	—DBV TECHNOLOGIES S A	4,200	$97K	0.92%	Call
3311	EATBRINKER INTL INC	2,700	$97K	0.92%	Call
3312	CALMCAL MAINE FOODS INC	2,223	$97K	0.92%
3313	PRIPRIMERICA INC	1,000	$97K	0.92%	Call
3314	—UNITED STS BRENT OIL FD LP	5,000	$96K	0.91%	Put
3315	AXSMAXSOME THERAPEUTICS INC	39,084	$96K	0.91%
3316	—BLUE APRON HLDGS INC	48,200	$96K	0.91%	Call
3317	—ATLANTIC PWR CORP	45,500	$96K	0.91%	Call
3318	—BIG 5 SPORTING GOODS CORP	13,200	$96K	0.91%	Put
3319	URBNURBAN OUTFITTERS INC	2,600	$96K	0.91%	Put
3320	—NORTHERN OIL & GAS INC NEV	47,800	$95K	0.90%	Put
3321	—ATHERSYS INC	51,700	$95K	0.90%	Put
3322	—ENDURANCE INTL GROUP HLDGS I	12,800	$95K	0.90%	Call
3323	GEGGEO GROUP INC NEW	4,635	$95K	0.90%
3324	VKTXVIKING THERAPEUTICS INC	21,800	$95K	0.90%	Put
3325	—LINE CORP	2,425	$95K	0.90%
3326	—HORTONWORKS INC	4,663	$95K	0.90%
3327	PENPENUMBRA INC	815	$94K	0.89%
3328	—CTI BIOPHARMA CORP	23,800	$93K	0.88%	Call
3329	—ZOGENIX INC	2,323	$93K	0.88%
3330	GXPGREAT PLAINS ENERGY INC	2,932	$93K	0.88%
3331	—INTREPID POTASH INC	25,500	$93K	0.88%	Put
3332	—PDC ENERGY INC	1,900	$93K	0.88%	Call
3333	TSTENARIS S A	2,676	$93K	0.88%
3334	—CLEARSIDE BIOMEDICAL INC	8,700	$93K	0.88%	Put
3335	TG7TRIUMPH GROUP INC NEW	3,635	$92K	0.87%
3336	—AKCEA THERAPEUTICS INC	3,600	$92K	0.87%	Put
3337	—2U INC	1,100	$92K	0.87%	Put
3338	—NEOS THERAPEUTICS INC	11,100	$92K	0.87%	Call
3339	BSMBLACK STONE MINERALS L P	5,549	$92K	0.87%
3340	—CONE MIDSTREAM PARTNERS LP	5,000	$92K	0.87%	Put
3341	ADIANALOG DEVICES INC	1,000	$91K	0.86%	Call
3342	XEJACCURAY INC	18,281	$91K	0.86%
3343	—BITAUTO HLDGS LTD	4,300	$91K	0.86%	Put
3344	RGLDROYAL GOLD INC	1,062	$91K	0.86%
3345	—CAI INTERNATIONAL INC	4,300	$91K	0.86%	Call
3346	SYNASYNAPTICS INC	2,000	$91K	0.86%	Call
3347	—BIODELIVERY SCIENCES INTL IN	40,400	$91K	0.86%	Call
3348	—GOLDEN STAR RES LTD CDA	152,600	$90K	0.85%	Call
3349	—WESTROCK CO	1,400	$90K	0.85%	Put
3350	MITKMITEK SYS INC	12,100	$90K	0.85%	Put
3351	CPSSCONSUMER PORTFOLIO SVCS INC	23,800	$90K	0.85%	Put
3352	—AIRCASTLE LTD	4,500	$89K	0.84%	Call
3353	—KINDRED BIOSCIENCES INC	10,303	$89K	0.84%
3354	—CONCERT PHARMACEUTICALS INC	3,900	$89K	0.84%	Call
3355	FROFRONTLINE LTD	20,100	$89K	0.84%	Put
3356	—COMPANHIA ENERGETICA DE MINA	34,600	$89K	0.84%	Call
3357	—ACACIA RESH CORP	25,300	$89K	0.84%	Call
3358	BCBRUNSWICK CORP	1,500	$89K	0.84%
3359	FNFABRINET	2,800	$88K	0.84%	Call
3360	—INTERNAP CORP	8,000	$88K	0.84%	Put
3361	—TWO HBRS INVT CORP	5,700	$88K	0.84%	Put
3362	FRPTFRESHPET INC	5,365	$88K	0.84%
3363	LILALIBERTY LATIN AMERICA LTD	4,548	$88K	0.84%
3364	—SCORPIO BULKERS INC	12,500	$88K	0.84%	Put
3365	CGNXCOGNEX CORP	1,700	$88K	0.84%	Call
3366	—KINDRED HEALTHCARE INC	9,600	$88K	0.84%	Put
3367	CARAEURCARA THERAPEUTICS INC	7,094	$88K	0.84%
3368	—COVANTA HLDG CORP	6,100	$88K	0.84%	Call
3369	—NAVIOS MARITIME PARTNERS L P	48,286	$87K	0.83%
3370	CRONCRONOS GROUP INC	13,000	$87K	0.83%	Call
3371	EVHEVOLENT HEALTH INC	6,100	$87K	0.83%	Call
3372	CGENCOMPUGEN LTD	19,256	$86K	0.82%
3373	—LAREDO PETROLEUM INC	9,900	$86K	0.82%	Put
3374	MEDMEDIFAST INC	920	$86K	0.82%
3375	WTFCWINTRUST FINL CORP	1,000	$86K	0.82%	Call
3376	SNDRSCHNEIDER NATIONAL INC	3,300	$86K	0.82%	Put
3377	INFYINFOSYS LTD	4,800	$86K	0.82%	Put
3378	GPREGREEN PLAINS INC	5,100	$86K	0.82%	Call
3379	KROKRONOS WORLDWIDE INC	3,800	$86K	0.82%	Put
3380	WTFCWINTRUST FINL CORP	1,000	$86K	0.82%	Put
3381	—MINDBODY INC	2,200	$86K	0.82%	Call
3382	ROSTROSS STORES INC	1,100	$86K	0.82%	Put
3383	ALSALLSTATE CORP	897	$85K	0.81%
3384	—NL INDS INC	10,800	$85K	0.81%	Put
3385	BTEBAYTEX ENERGY CORP	31,100	$85K	0.81%	Call
3386	—SYNOVUS FINL CORP	1,700	$85K	0.81%	Call
3387	HRIHERC HLDGS INC	1,300	$84K	0.80%	Put
3388	—ADAMIS PHARMACEUTICALS CORP	24,000	$84K	0.80%	Put
3389	EZPWEZCORP INC	6,400	$84K	0.80%	Call
3390	TPCTUTOR PERINI CORP	3,828	$84K	0.80%
3391	XBITXBIOTECH INC	15,765	$84K	0.80%
3392	BTUPEABODY ENERGY CORP NEW	2,290	$84K	0.80%
3393	HRIHERC HLDGS INC	1,290	$84K	0.80%
3394	LPXLOUISIANA PAC CORP	2,902	$83K	0.79%
3395	—CENTURY ALUM CO	5,000	$83K	0.79%	Call
3396	CALMCAL MAINE FOODS INC	1,900	$83K	0.79%	Put
3397	RNGRINGCENTRAL INC	1,300	$83K	0.79%
3398	—SHILOH INDS INC	9,500	$83K	0.79%	Put
3399	USACUSA COMPRESSION PARTNERS LP	4,900	$83K	0.79%	Call
3400	EXKENDEAVOUR SILVER CORP	33,700	$82K	0.78%	Put

PreviousPage 34 of 49Next