GROUP ONE TRADING LLC

CHICAGO, IL · CIK 932540 · 13F filing filed 2026-08-14

No investment adviser registration (Form ADV) found for this filer. It may be a parent company whose subsidiaries are the registered advisers, a bank or insurer, or a manager based outside the US.

Legal entityGROUP ONE TRADING LLC (US)
Part of GROUP ONE HOLDINGS LLC (US)

$3.5bn reported value +14.6% vs Q1 2026

2,157positions

17.8%in top 10

643 new 577 added 793 reduced 653 sold out vs Q1 2026

Options: 3059 call positions ($41.7bn notional), 2608 put positions ($25.9bn notional) – listed below, not included above.

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	ROUNDHILL ETF TRUST MEMORY ETF DRAM	DRAM	1,470,486	$108.6m3.13%	3.13%	New
2	TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADS TSM	TSM	193,229	$92.3m2.66%	2.66%	Added +55.2k	+55,176 40.0%
3	MICRON TECHNOLOGY INC COM MU	MU	72,926	$84.2m2.43%	2.43%	Reduced -82.8k	-82,762 -53.2%
4	GLOBAL X FDS GLOBAL X URANIUM URA	URA	1,820,258	$79.5m2.29%	2.29%	Added +68.3k	+68,340 3.9%
5	MARVELL TECHNOLOGY INC COM MRVL	MRVL	186,955	$55.7m1.61%	1.61%	Added +139.3k	+139,284 292.2%
6	UNITEDHEALTH GROUP INC COM UNH	UNH	127,354	$52.9m1.53%	1.53%	Added +101.4k	+101,394 390.6%
7	KKR & CO INC COM KKR	KKR	482,993	$44.3m1.28%	1.28%	Added +148.1k	+148,099 44.2%
8	BOOKING HOLDINGS INC COM BKNG	BKNG	191,731	$34.2m0.99%	0.99%	New
9	SPROTT FDS TR URANIUM MINERS E URNM	URNM	624,929	$32.9m0.95%	0.95%	Added +46.6k	+46,576 8.1%
10	OSCAR HEALTH INC CL A OSCR	OSCR	1,148,112	$32.7m0.94%	0.94%	Reduced -109.7k	-109,665 -8.7%
11	THE CIGNA GROUP COM CI	CI	91,369	$25.2m0.73%	0.73%	Added +51.8k	+51,769 130.7%
12	FUELCELL ENERGY INC COM NEW FCEL	FCEL	696,353	$25.1m0.72%	0.72%	Added +645.5k	+645,535 1270.3%
13	MARRIOTT INTL INC NEW CL A MAR	MAR	63,890	$23.7m0.68%	0.68%	Reduced -42.0k	-41,974 -39.6%
14	CHARTER COMMUNICATIONS INC N CL A CHTR	CHTR	164,097	$23.3m0.67%	0.67%	Added +146.1k	+146,057 809.6%
15	PDD HOLDINGS INC SPONSORED ADS PDD	PDD	302,886	$23.1m0.67%	0.67%	Added +218.5k	+218,472 258.8%
16	DOORDASH INC CL A DASH	DASH	123,933	$22.9m0.66%	0.66%	New
17	FIRST MAJESTIC SILVER CORP COM AG	AG	1,312,998	$22.3m0.64%	0.64%	Reduced -621.9k	-621,910 -32.1%
18	NVIDIA CORPORATION COM NVDA	NVDA	109,278	$21.9m0.63%	0.63%	New
19	VISHAY INTERTECHNOLOGY INC COM VSH	VSH	405,758	$21.8m0.63%	0.63%	New
20	SELECT SECTOR SPDR TR TECHNOLOGY XLK	XLK	111,928	$21.3m0.61%	0.61%	New
21	COHERENT CORP COM COHR	COHR	53,595	$21.1m0.61%	0.61%	Reduced -22.1k	-22,087 -29.2%
22	KRANESHARES TRUST CSI CHI INTERNET KWEB	KWEB	857,064	$21.0m0.60%	0.60%	Added +83.8k	+83,753 10.8%
23	PFIZER INC COM PFE	PFE	868,402	$20.9m0.60%	0.60%	Added +276.2k	+276,169 46.6%
24	ACM RESH INC COM CL A ACMR	ACMR	157,056	$19.9m0.57%	0.57%	Added +65.6k	+65,629 71.8%
25	MICROSTRATEGY INC CL A NEW MSTR	MSTR	220,929	$19.2m0.55%	0.55%	Added +194.4k	+194,447 734.3%
26	LUMENTUM HLDGS INC COM LITE	LITE	22,359	$19.2m0.55%	0.55%	Reduced -5.1k	-5,111 -18.6%
27	PALANTIR TECHNOLOGIES INC CL A PLTR	PLTR	158,800	$18.5m0.53%	0.53%	New
28	NEXTNAV INC COMMON STOCK NN	NN	1,029,972	$18.4m0.53%	0.53%	Reduced -182	-182 -0.0%
29	ALASKA AIR GROUP INC COM ALK	ALK	351,374	$18.3m0.53%	0.53%	Added +340.0k	+340,007 2991.2%
30	SCHLUMBERGER LTD COM STK SLB	SLB	386,954	$18.0m0.52%	0.52%	Added +76.0k	+75,979 24.4%
31	V F CORP COM VFC	VFC	1,040,180	$17.4m0.50%	0.50%	Added +24.4k	+24,414 2.4%
32	ECHOSTAR CORP CL A ECHO	ECHO	162,886	$16.5m0.48%	0.48%	Added +159.1k	+159,104 4206.9%
33	PAN AMERN SILVER CORP COM PAAS	PAAS	368,039	$16.5m0.48%	0.48%	Added +68.3k	+68,281 22.8%
34	GOLAR LNG LTD SHS GLNG	GLNG	330,159	$16.5m0.47%	0.47%	Added +169.1k	+169,106 105.0%
35	APPLIED OPTOELECTRONICS INC COM AAOI	AAOI	110,362	$16.4m0.47%	0.47%	Reduced -25.6k	-25,610 -18.8%
36	PEPSICO INC COM PEP	PEP	120,280	$16.3m0.47%	0.47%	Added +107.1k	+107,064 810.1%
37	AMERICAN AIRLS GROUP INC COM AAL	AAL	894,605	$16.2m0.47%	0.47%	Reduced -291.7k	-291,696 -24.6%
38	ENERGY TRANSFER L P COM UT LTD PTN ET	ET	840,158	$16.1m0.46%	0.46%	Reduced -108.8k	-108,804 -11.5%
39	ROCKET COS INC COM CL A RKT	RKT	1,016,570	$16.0m0.46%	0.46%	Reduced -10.1k	-10,091 -1.0%
40	IREN LIMITED ORDINARY SHARES IREN	IREN	344,912	$15.8m0.45%	0.45%	Reduced -219.1k	-219,091 -38.9%
41	CAMECO CORP COM CCJ	CCJ	151,446	$15.4m0.44%	0.44%	Reduced -5.1k	-5,140 -3.3%
42	SUPER GROUP SGHC LIMITED ORD SHS SGHC	SGHC	1,126,513	$15.3m0.44%	0.44%	Reduced -495.0k	-495,019 -30.5%
43	CORNING INC COM GLW	GLW	59,465	$15.2m0.44%	0.44%	Reduced -10.0k	-9,954 -14.3%
44	CIPHER MINING INC COM CIFR	CIFR	618,316	$15.1m0.44%	0.44%	New
45	WESTERN DIGITAL CORP COM WDC	WDC	23,641	$15.1m0.44%	0.44%	New
46	KEEL INFRASTRUCTURE CORP COM SHS KEEL	KEEL	2,628,322	$15.1m0.43%	0.43%	New
47	LEMONADE INC COM LMND	LMND	231,456	$15.1m0.43%	0.43%	Added +51.5k	+51,502 28.6%
48	ROBINHOOD MKTS INC COM CL A HOOD	HOOD	147,484	$14.8m0.43%	0.43%	Reduced -11.0k	-11,048 -7.0%
49	INTEL CORP COM INTC	INTC	105,240	$14.7m0.42%	0.42%	Reduced -364.2k	-364,250 -77.6%
50	MODERNA INC COM MRNA	MRNA	203,915	$14.3m0.41%	0.41%	Added +156.0k	+156,014 325.7%
51	TARGET CORP COM TGT	TGT	107,879	$14.1m0.41%	0.41%	Added +7.9k	+7,896 7.9%
52	ISHARES TR ISHARES SEMICDTR SOXX	SOXX	21,841	$14.0m0.40%	0.40%	New
53	GLOBAL X FDS GLOBAL X SILVER SIL	SIL	176,160	$13.6m0.39%	0.39%	Reduced -24.3k	-24,255 -12.1%
54	MAXLINEAR INC COM MXL	MXL	104,369	$13.4m0.39%	0.39%	Added +104.3k	+104,331 274555.3%
55	ZIM INTEGRATED SHIPPING SERV SHS ZIM	ZIM	512,427	$13.3m0.38%	0.38%	Added +106.0k	+105,955 26.1%
56	OUSTER INC COM NEW OUST	OUST	212,447	$13.3m0.38%	0.38%	Added +80.5k	+80,525 61.0%
57	T1 ENERGY INC COM NEW TE	TE	1,400,308	$13.3m0.38%	0.38%	Added +1.2m	+1,160,632 484.2%
58	MOSAIC CO NEW COM MOS	MOS	607,889	$12.9m0.37%	0.37%	Added +244.8k	+244,837 67.4%
59	SHOPIFY INC CL A SUB VTG SHS SHOP	SHOP	112,530	$12.8m0.37%	0.37%	New
60	BOEING CO COM BA	BA	57,917	$12.5m0.36%	0.36%	Added +46.2k	+46,236 395.8%
61	GLOBAL X FDS GLOBAL X COPPER COPX	COPX	160,884	$12.4m0.36%	0.36%	Reduced -145.3k	-145,302 -47.5%
62	MICROSOFT CORP COM MSFT	MSFT	32,986	$12.3m0.35%	0.35%	Reduced -501	-501 -1.5%
63	AXT INC COM AXTI	AXTI	168,015	$12.1m0.35%	0.35%	Added +131.1k	+131,113 355.3%
64	VIAVI SOLUTIONS INC COM VIAV	VIAV	252,334	$12.0m0.35%	0.35%	Added +82.2k	+82,237 48.4%
65	LOCKHEED MARTIN CORP COM LMT	LMT	23,584	$12.0m0.35%	0.35%	New
66	WARNER BROS DISCOVERY INC COM SER A WBD	WBD	450,107	$12.0m0.35%	0.35%	Added +255.1k	+255,087 130.8%
67	NU HLDGS LTD ORD SHS CL A NU	NU	867,767	$11.6m0.33%	0.33%	New
68	UNDER ARMOUR INC CL A UAA	UAA	1,801,320	$11.5m0.33%	0.33%	Added +233.1k	+233,093 14.9%
69	ISHARES TR CHINA LG-CAP ETF FXI	FXI	361,019	$11.4m0.33%	0.33%	Reduced -10.9k	-10,937 -2.9%
70	HIMS & HERS HEALTH INC COM CL A HIMS	HIMS	328,118	$11.4m0.33%	0.33%	Added +290.5k	+290,464 771.4%
71	FERMI INC COM FRMI	FRMI	1,225,687	$11.2m0.32%	0.32%	New
72	AMKOR TECHNOLOGY INC COM AMKR	AMKR	129,334	$11.2m0.32%	0.32%	New
73	GOLDMAN SACHS GROUP INC COM GS	GS	10,705	$10.8m0.31%	0.31%	Reduced -7.4k	-7,412 -40.9%
74	EXPAND ENERGY CORPORATION COM EXE	EXE	116,167	$10.6m0.31%	0.31%	New
75	ADVANCE AUTO PARTS INC COM AAP	AAP	168,792	$10.5m0.30%	0.30%	Added +46.6k	+46,622 38.2%
76	NRG ENERGY INC COM NEW NRG	NRG	70,008	$10.2m0.29%	0.29%	Added +46.1k	+46,090 192.7%
77	VIKING THERAPEUTICS INC COM VKTX	VKTX	261,443	$10.2m0.29%	0.29%	Added +49.6k	+49,626 23.4%
78	UNITY SOFTWARE INC COM U	U	355,514	$10.2m0.29%	0.29%	Added +274.6k	+274,576 339.2%
79	UNITED PARCEL SERVICE INC CL B UPS	UPS	93,946	$10.1m0.29%	0.29%	Reduced -14.4k	-14,442 -13.3%
80	FREEPORT-MCMORAN INC CL B FCX	FCX	159,813	$10.1m0.29%	0.29%	Added +154.3k	+154,329 2814.2%
81	PROSHARES TR ULTRAPRO QQQ TQQQ	TQQQ	123,865	$10.0m0.29%	0.29%	Reduced -171.2k	-171,166 -58.0%
82	CLOUDFLARE INC CL A COM NET	NET	40,636	$10.0m0.29%	0.29%	Added +1.1k	+1,137 2.9%
83	PROSHARES TR II ULSHT BLOOMB OIL SCO	SCO	278,583	$9.8m0.28%	0.28%	New
84	RIVIAN AUTOMOTIVE INC COM CL A RIVN	RIVN	560,729	$9.7m0.28%	0.28%	Added +391.5k	+391,525 231.4%
85	HECLA MNG CO COM HL	HL	629,809	$9.7m0.28%	0.28%	Added +101.7k	+101,664 19.2%
86	NETFLIX INC COM NFLX	NFLX	133,424	$9.5m0.27%	0.27%	New
87	PITNEY BOWES INC COM PBI	PBI	541,985	$9.5m0.27%	0.27%	Reduced -218.9k	-218,855 -28.8%
88	ARK ETF TR INNOVATION ETF ARKK	ARKK	116,664	$9.4m0.27%	0.27%	Added +103.7k	+103,708 800.5%
89	QXO INC COM NEW QXO	QXO	542,503	$9.4m0.27%	0.27%	Added +183.7k	+183,669 51.2%
90	UBER TECHNOLOGIES INC COM UBER	UBER	129,875	$9.4m0.27%	0.27%	Added +20.4k	+20,369 18.6%
91	NIKE INC CL B NKE	NKE	225,002	$9.2m0.27%	0.27%	Added +57.7k	+57,658 34.5%
92	PENNYMAC FINL SVCS INC NEW COM PFSI	PFSI	105,408	$9.2m0.26%	0.26%	Added +53.6k	+53,576 103.4%
93	ZOETIS INC CL A ZTS	ZTS	125,568	$9.0m0.26%	0.26%	Added +74.9k	+74,906 147.8%
94	REDWIRE CORPORATION COM RDW	RDW	723,657	$8.9m0.26%	0.26%	Reduced -584.3k	-584,261 -44.7%
95	VENTURE GLOBAL INC COM CL A VG	VG	792,704	$8.8m0.25%	0.25%	Added +277.3k	+277,322 53.8%
96	EXPEDIA GROUP INC COM NEW EXPE	EXPE	33,870	$8.7m0.25%	0.25%	Added +6.2k	+6,238 22.6%
97	RH COM RH	RH	51,837	$8.5m0.25%	0.25%	Added +20.8k	+20,842 67.2%
98	AGNICO EAGLE MINES LTD COM AEM	AEM	54,294	$8.4m0.24%	0.24%	Added +2.4k	+2,440 4.7%
99	PENGUIN SOLUTIONS INC COM PENG	PENG	110,359	$8.4m0.24%	0.24%	New
100	NEWMONT CORP COM NEM	NEM	89,784	$8.4m0.24%	0.24%	New

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
CYTOKINETICS INC CYTK	CYTK	363,997	$24.0m364.0k shares
CENTENE CORP DEL CNC	CNC	583,670	$19.1m583.7k shares
FLAGSTAR FINANCIAL INC FLG	FLG	1,391,073	$18.3m1.4m shares
NEXTERA ENERGY INC NEE	NEE	148,326	$13.8m148.3k shares
SPDR SER TR XBI	XBI	90,331	$11.5m90.3k shares
UNITED AIRLS HLDGS INC UAL	UAL	119,540	$11.0m119.5k shares
BILIBILI INC BILI	BILI	457,844	$10.3m457.8k shares
SEABRIDGE GOLD INC		351,285	$10.0m351.3k shares
APOLLO GLOBAL MGMT INC APO	APO	88,087	$9.8m88.1k shares
TEUCRIUM COMMODITY TR CORN	CORN	462,606	$8.5m462.6k shares
JPMORGAN CHASE & CO JPM	JPM	26,729	$7.9m26.7k shares
REDDIT INC RDDT	RDDT	57,342	$7.7m57.3k shares
POET TECHNOLOGIES INC POET	POET	1,196,057	$7.1m1.2m shares
MOTOROLA SOLUTIONS INC MSI	MSI	14,847	$6.4m14.8k shares
ROCKET LAB CORP RKLB	RKLB	74,924	$4.8m74.9k shares
ANALOG DEVICES INC ADI	ADI	13,704	$4.4m13.7k shares
VERTEX PHARMACEUTICALS INC VRTX	VRTX	9,357	$4.2m9.4k shares
MP MATERIALS CORP MP	MP	82,791	$4.0m82.8k shares
CARNIVAL CORP		150,169	$3.9m150.2k shares
PAPA JOHNS INTL INC PZZA	PZZA	112,977	$3.7m113.0k shares
ROCKWELL AUTOMATION INC ROK	ROK	10,104	$3.6m10.1k shares
BANK AMERICA CORP BAC	BAC	74,179	$3.6m74.2k shares
SPDR SER TR XHB	XHB	36,528	$3.6m36.5k shares
PTC THERAPEUTICS INC PTCT	PTCT	52,713	$3.6m52.7k shares
PROLOGIS INC. PLD	PLD	26,976	$3.6m27.0k shares

Options (notional value)

Underlying	Ticker	Type	Shares controlled	Notional	Change
MICRON TECHNOLOGY INC MU · Put	MU	Put	2,067,900	$2.4bn2.1m shares	Added
MICRON TECHNOLOGY INC MU · Call	MU	Call	1,713,300	$2.0bn1.7m shares	Added
SPDR GOLD TR GLD · Call	GLD	Call	3,706,400	$1.4bn3.7m shares	Reduced
SANDISK CORP SNDK · Put	SNDK	Put	552,500	$1.3bn552.5k shares	Added
TESLA INC TSLA · Call	TSLA	Call	2,807,700	$1.2bn2.8m shares	Reduced
META PLATFORMS INC META · Call	META	Call	1,825,000	$1.0bn1.8m shares	Added
VANECK ETF TRUST Put		Put	3,035,200	$1.0bn3.0m shares	Added
MICROSOFT CORP MSFT · Call	MSFT	Call	2,391,200	$892.0m2.4m shares	Added
SANDISK CORP SNDK · Call	SNDK	Call	372,500	$847.0m372.5k shares	Added
INTEL CORP INTC · Call	INTC	Call	4,994,200	$697.3m5.0m shares	Reduced
APPLE INC AAPL · Call	AAPL	Call	2,351,400	$680.4m2.4m shares	Added
TESLA INC TSLA · Put	TSLA	Put	1,601,900	$673.8m1.6m shares	Added
UNITEDHEALTH GROUP INC UNH · Call	UNH	Call	1,613,600	$670.7m1.6m shares	Reduced
NVIDIA CORPORATION NVDA · Call	NVDA	Call	3,157,000	$631.7m3.2m shares	Added
VANECK ETF TRUST GDX · Call	GDX	Call	3,977,500	$608.1m4.0m shares	Added
ELI LILLY & CO LLY · Call	LLY	Call	471,800	$565.9m471.8k shares	Added
TAIWAN SEMICONDUCTOR MFG LTD TSM · Put	TSM	Put	1,121,200	$535.5m1.1m shares	Added
ADVANCED MICRO DEVICES INC AMD · Call	AMD	Call	914,600	$531.3m914.6k shares	Added
ADVANCED MICRO DEVICES INC AMD · Put	AMD	Put	845,700	$491.3m845.7k shares	Added
ALPHABET INC GOOG · Call	GOOG	Call	1,303,900	$460.7m1.3m shares	Added
SPDR GOLD TR GLD · Put	GLD	Put	1,202,100	$442.8m1.2m shares	Reduced
NEBIUS GROUP N.V. NBIS · Call	NBIS	Call	1,539,400	$425.1m1.5m shares	Reduced
ISHARES INC Put		Put	1,986,400	$400.0m2.0m shares	Added
ISHARES INC EWO · Call	EWO	Call	1,920,000	$385.8m1.9m shares	Added
UNITEDHEALTH GROUP INC UNH · Put	UNH	Put	865,600	$359.8m865.6k shares	Reduced

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

Company	Ticker	Stake	Change	Schedule	Last filed
QUINCE THERAPEUTICS INC 13G · filed 2026-03-05		10.7%	new	13G	2026-03-05