GROUP ONE TRADING LLC Q4 2018 Filing

Filed February 6, 2019

Portfolio Value

$11.5M

Holdings

4,844

Report Date

Q4 2018

Filing Type

13F-HR

All Holdings (4,844 positions)

#	Stock	Shares	Value	% Portfolio	Type
3201	QDELUSDQUIDEL CORP	2,029	$99K	0.86%
3202	CLBKCOLUMBIA FINL INC	6,400	$98K	0.85%	Call
3203	FSICUSDFS KKR CAPITAL CORP	19,000	$98K	0.85%
3204	—DESPEGAR COM CORP	7,900	$98K	0.85%	Put
3205	—CALLAWAY GOLF CO	6,400	$98K	0.85%	Call
3206	—PETROCHINA CO LTD	1,600	$98K	0.85%	Put
3207	—CENTENNIAL RESOURCE DEV INC	8,900	$98K	0.85%	Put
3208	—QEP RES INC	17,400	$98K	0.85%	Call
3209	—NORTHWEST PIPE CO	4,200	$98K	0.85%	Put
3210	KNKNOWLES CORP	7,300	$97K	0.84%	Put
3211	—T2 BIOSYSTEMS INC	32,200	$97K	0.84%	Put
3212	VLYVALLEY NATL BANCORP	10,976	$97K	0.84%
3213	TUPTUPPERWARE BRANDS CORP	3,088	$97K	0.84%
3214	SONYSONY CORP	2,000	$97K	0.84%	Put
3215	—CHEETAH MOBILE INC	15,900	$97K	0.84%	Call
3216	—PACIFIC COAST OIL TR	59,028	$97K	0.84%
3217	—EXPRESS INC	18,900	$97K	0.84%	Put
3218	MTSIMACOM TECH SOLUTIONS HLDGS I	6,700	$97K	0.84%	Call
3219	—COMPANHIA SIDERURGICA NACION	44,100	$97K	0.84%	Call
3220	MEDMEDIFAST INC	766	$96K	0.83%
3221	—AFFIMED N V	30,900	$96K	0.83%	Put
3222	—MID AMER APT CMNTYS INC	1,000	$96K	0.83%	Put
3223	SHOPSHOPIFY INC	690	$96K	0.83%
3224	CMBTEURONAV NV ANTWERPEN	13,792	$96K	0.83%
3225	RDIREADING INTERNATIONAL INC	6,600	$96K	0.83%	Call
3226	—GCP APPLIED TECHNOLOGIES INC	3,900	$96K	0.83%	Call
3227	CMBTEURONAV NV ANTWERPEN	13,700	$95K	0.82%	Put
3228	FLEXFLEX LTD	12,500	$95K	0.82%	Put
3229	—TUPPERWARE BRANDS CORP	3,000	$95K	0.82%	Call
3230	GAPGAP INC DEL	3,690	$95K	0.82%
3231	RDNRADIAN GROUP INC	5,834	$95K	0.82%
3232	—ANTARES PHARMA INC	35,046	$95K	0.82%
3233	FHIFEDERATED INVS INC PA	3,522	$94K	0.81%
3234	BTUPEABODY ENERGY CORP NEW	3,100	$94K	0.81%	Call
3235	KRNTKORNIT DIGITAL LTD	5,000	$94K	0.81%	Put
3236	—VIRNETX HLDG CORP	39,100	$94K	0.81%	Call
3237	TTMITTM TECHNOLOGIES INC	9,658	$94K	0.81%
3238	KRNTKORNIT DIGITAL LTD	5,000	$94K	0.81%	Call
3239	GTESGATES INDUSTRIAL CORPRATIN P	7,100	$94K	0.81%	Call
3240	SSPSCRIPPS E W CO OHIO	5,994	$94K	0.81%
3241	—C&J ENERGY SVCS INC NEW	6,907	$93K	0.81%
3242	HRTXHERON THERAPEUTICS INC	3,581	$93K	0.81%
3243	RPDRAPID7 INC	3,000	$93K	0.81%	Put
3244	—BRIXMOR PPTY GROUP INC	6,300	$93K	0.81%	Put
3245	—KEMET CORP	5,300	$93K	0.81%	Put
3246	XBITXBIOTECH INC	18,331	$93K	0.81%
3247	OLNOLIN CORP	4,600	$93K	0.81%	Call
3248	BLMNBLOOMIN BRANDS INC	5,200	$93K	0.81%	Put
3249	—ROCKWELL MED INC	40,725	$92K	0.80%
3250	—PACKAGING CORP AMER	1,100	$92K	0.80%	Put
3251	BOOMDMC GLOBAL INC	2,625	$92K	0.80%
3252	AZTABROOKS AUTOMATION INC	3,500	$92K	0.80%	Call
3253	HLIHOULIHAN LOKEY INC	2,500	$92K	0.80%
3254	UECURANIUM ENERGY CORP	73,900	$92K	0.80%	Put
3255	—EYEPOINT PHARMACEUTICALS INC	48,900	$92K	0.80%	Call
3256	—LEGACY RESVS INC	59,900	$92K	0.80%
3257	LPLALPL FINL HLDGS INC	1,500	$92K	0.80%	Call
3258	—QIWI PLC	6,500	$92K	0.80%	Call
3259	NVSNNOVARTIS A G	1,063	$91K	0.79%
3260	CPRTCOPART INC	1,900	$91K	0.79%	Call
3261	—AMERIGAS PARTNERS L P	3,600	$91K	0.79%	Call
3262	BPBP PLC	2,388	$91K	0.79%
3263	—SORRENTO THERAPEUTICS INC	37,600	$90K	0.78%	Put
3264	WKWORKIVA INC	2,500	$90K	0.78%	Put
3265	IOVAIOVANCE BIOTHERAPEUTICS INC	10,200	$90K	0.78%	Call
3266	—ATLANTIC PWR CORP	41,400	$90K	0.78%	Call
3267	WKWORKIVA INC	2,500	$90K	0.78%	Call
3268	—CEDAR FAIR L P	1,900	$90K	0.78%	Call
3269	—J JILL INC	16,800	$90K	0.78%
3270	—RED LION HOTELS CORP	11,000	$90K	0.78%	Call
3271	DOMODOMO INC	4,600	$90K	0.78%	Call
3272	AMEDAMEDISYS INC	771	$90K	0.78%
3273	SBSAFE BULKERS INC	50,000	$89K	0.77%	Call
3274	—EP ENERGY CORP	126,956	$89K	0.77%
3275	CYBRCYBERARK SOFTWARE LTD	1,200	$89K	0.77%	Put
3276	AMWDAMERICAN WOODMARK CORPORATIO	1,600	$89K	0.77%	Call
3277	BOOTBOOT BARN HLDGS INC	5,200	$89K	0.77%	Put
3278	—TIFFANY & CO NEW	1,100	$89K	0.77%	Put
3279	TOLTOLL BROTHERS INC	2,708	$89K	0.77%
3280	SENSSENSEONICS HLDGS INC	34,500	$89K	0.77%	Put
3281	KTOSKRATOS DEFENSE & SEC SOLUTIO	6,263	$88K	0.76%
3282	—CONTROL4 CORP	5,000	$88K	0.76%	Put
3283	—WINDSTREAM HLDGS INC	42,271	$88K	0.76%
3284	SBSWSIBANYE STILLWATER	31,068	$88K	0.76%
3285	FROFRONTLINE LTD	16,000	$88K	0.76%	Put
3286	—HOSTESS BRANDS INC	8,000	$88K	0.76%	Put
3287	ABUSARBUTUS BIOPHARMA CORP	22,900	$88K	0.76%	Call
3288	AVNTNAVIENT CORPORATION	10,000	$88K	0.76%	Put
3289	REZIRESIDEO TECHNOLOGIES INC	4,300	$88K	0.76%	Put
3290	IEPICAHN ENTERPRISES LP	1,528	$87K	0.75%
3291	DOCUDOCUSIGN INC	2,164	$87K	0.75%
3292	EVAUSDENVIVA PARTNERS LP	3,130	$87K	0.75%
3293	NTLAINTELLIA THERAPEUTICS INC	6,400	$87K	0.75%	Put
3294	—TEEKAY OFFSHORE PARTNERS L P	72,200	$87K	0.75%	Call
3295	LIVNLIVANOVA PLC	946	$87K	0.75%
3296	CQPCHENIERE ENERGY PARTNERS LP	2,411	$87K	0.75%
3297	—MCEWEN MNG INC	48,000	$87K	0.75%	Call
3298	TEAMATLASSIAN CORP PLC	979	$87K	0.75%
3299	—T2 BIOSYSTEMS INC	28,766	$87K	0.75%
3300	—BIG 5 SPORTING GOODS CORP	33,400	$87K	0.75%	Call

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