GROUP ONE TRADING LLC

Broker-dealer

CIK

932540

Location

CHICAGO, IL

Portfolio Value

Mid $3,300,387,922

Diversification

Diversified

Filing Date

Global Rank

#1,168 / 8,817 ▼ 25

Top Industry

Semiconductors 11.8%

Period ended 4 months ago

Filed Aug 14, 2026 · 2mo

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Broker-dealer

Schedule 13G, Sep 8, 2026

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Systematic-like

1,869 stocks (500+), trailing annual turnover 167.6% (100%+), top 10 weight 17.5% (25% or less)

Turnover

High turnover

167.6% over the last four quarters (100%+)

Horizon

Horizon unknown

The value-weighted holding period is at least 6.4 quarters, but 1.7% of the book was already held when coverage starts

Closest benchmark: every 13F filer's combined book, active share 77.7%; sector active share 12.4% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

2,133 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

3.2%

−1.1 pts

Top 5

11.9%

+0.3 pts

Top 10

17.5%

+0.4 pts

HHI

Diversified−2

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	27.3%	$900,227,730	313
Unclassified	13.3%	$440,229,626	343
Consumer Cyclical	12.2%	$401,418,449	217
Healthcare	11.0%	$362,941,082	340
Financial Services	8.1%	$265,827,568	188
Industrials	8.0%	$264,191,893	211
Basic Materials	6.4%	$209,677,936	123
Energy	4.5%	$148,932,486	89
Communication Services	3.7%	$123,229,004	100
Consumer Defensive	3.1%	$102,491,457	80
Real Estate	1.4%	$45,862,079	92
Utilities	1.1%	$35,358,612	37

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
IQ	iQIYI, Inc.	+1,630,393	1,962,931	$2,041,448
KEEL	Keel Infrastructure Corp.	+1,596,956	2,628,322	$15,086,568
TE	T1 Energy Inc.	+1,160,632	1,400,308	$13,274,919
FCEL	Fuelcell Energy Inc	+645,535	696,353	$25,075,671
MSOS	AdvisorShares Pure US Cannabis ETF	+635,648	891,056	$4,526,564
MPT	Medical Properties Trust Inc	+449,102	652,346	$3,013,838
ORBS	Eightco Holdings Inc.	+411,230	689,220	$479,697
RIVN	Rivian Automotive, Inc.	+391,525	560,729	$9,728,648
GPRO	GoPro, Inc.	+386,643	1,012,641	$787,834
XOVR	EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF	+382,689	395,280	$8,320,644
ALK	Alaska Air Group, Inc.	+340,007	351,374	$18,341,722
SIDU	Sidus Space Inc.	+330,396	373,756	$1,050,254
IEP	Icahn Enterprises L.P.	+324,248	408,446	$2,944,895
DGXX	Digi Power X Inc.	+321,659	433,091	$2,360,345
LAC	Lithium Americas Corp.	+306,322	780,416	$3,004,601
PURR	Hyperliquid Strategies Inc	+297,845	338,745	$2,665,923
HIMS	Hims & Hers Health, Inc.	+290,464	328,118	$11,375,851
DEFT	Defi Technologies, Inc.	+289,184	335,639	$172,518
VTGN	Vistagen Therapeutics, Inc.	+284,510	304,385	$70,008
CAN	Canaan Inc.	+282,935	573,476	$164,587
VG	Venture Global, Inc.	+277,322	792,704	$8,822,795
PFE	Pfizer Inc	+276,169	868,402	$20,911,120
U	Unity Software Inc.	+274,576	355,514	$10,160,590
BMBL	Bumble Inc.	+262,876	432,301	$1,383,363
WBD	Warner Bros. Discovery, Inc.	+255,087	450,107	$11,999,852
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
SILJ		−2,251,123	169,714	$4,398,986
EOSE	Eos Energy Enterprises, Inc.	−1,946,222	1,061,192	$6,239,808
PBR	Petrobras - Petroleo Brasileiro SA	−1,064,499	516,510	$8,346,801
SOFI	SoFi Technologies, Inc.	−997,008	260,866	$4,677,327
CDE	Coeur Mining, Inc.	−909,873	310,581	$5,068,681
OWL	Blue Owl Capital Inc.	−826,778	248,931	$2,178,146
UAMY	United States Antimony Corp	−665,524	55,206	$400,795
AG	First Majestic Silver Corp	−621,910	1,312,998	$22,268,446
ABSI	Absci Corp	−607,241	524,747	$6,081,817
RDW	Redwire Corp	−584,261	723,657	$8,850,325
EH	EHang Holdings Ltd	−507,949	458,712	$3,004,563
SGHC	Super Group (SGHC) Ltd	−495,019	1,126,513	$15,264,251
WULF	Terawulf Inc.	−478,174	232,220	$5,735,834
COUR	Coursera, Inc.	−412,549	63,801	$359,837
PL	Planet Labs PBC	−399,215	14,825	$491,152
EWZ	iShares MSCI Brazil ETF	−398,308	174,068	$6,005,346
AMC	Amc Entertainment Holdings, Inc.	−379,139	161,386	$306,633
RSI	Rush Street Interactive, Inc.	−379,094	9,409	$279,823
GRAB	Grab Holdings Ltd	−368,736	1,141,421	$4,303,157
INTC	Intel Corp	−364,250	105,240	$14,694,661
STLA	Stellantis N.V.	−359,408	247,514	$1,420,730
IOVA	Iovance Biotherapeutics, Inc.	−358,085	237,671	$988,711
SMCI	Super Micro Computer, Inc.	−342,277	196,697	$5,769,123
BULL	Webull Corp	−330,836	499,107	$3,254,177
AES	Aes Corp	−315,042	161,270	$2,364,218
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
BKNG	Booking Holdings Inc.	191,731	$34,174,133
DASH	DoorDash, Inc.	123,933	$22,869,356
NVDA	Nvidia Corp	109,278	$21,865,435
VSH	Vishay Intertechnology Inc	405,758	$21,821,665
XLK	State Street(R) Technology Select Sector SPDR(R) ETF	111,928	$21,324,522
PLTR	Palantir Technologies Inc.	158,800	$18,527,196
CIFR	Cipher Digital Inc.	618,316	$15,148,742
WDC	Western Digital Corp	23,641	$15,099,979
SHOP	Shopify Inc.	112,530	$12,848,675
LMT	Lockheed Martin Corp	23,584	$12,015,104
NU	Nu Holdings Ltd.	867,767	$11,593,367
FRMI	Fermi Inc.	1,225,687	$11,227,292
AMKR	Amkor Technology, Inc.	129,334	$11,152,470
EXE	EXPAND ENERGY Corp	116,167	$10,593,268
NFLX	Netflix Inc	133,424	$9,526,473
PENG	Penguin Solutions, Inc.	110,359	$8,388,387
NEM	NEWMONT Corp	89,784	$8,385,825
XLI	State Street(R) Industrial Select Sector SPDR(R) ETF	44,848	$8,307,195
WYNN	Wynn Resorts Ltd	84,980	$8,250,708
ADBE	Adobe Inc.	39,832	$8,166,356
MAGS	Roundhill Magnificent Seven ETF	126,424	$8,129,063
CDNS	Cadence Design Systems Inc	21,083	$7,912,871
IGV	iShares Expanded Tech-Software Sector ETF	81,548	$7,388,248
PM	Philip Morris International Inc.	39,243	$7,099,451
AVAV	AeroVironment Inc	39,592	$6,535,451
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
CYTK	Cytokinetics Inc	363,997	$23,991,042
CNC	Centene Corp	583,670	$19,109,355
FLG	Flagstar Bank, National Association	1,391,073	$18,320,431
NEE	Nextera Energy Inc	148,326	$13,776,518
XBI	State Street(R) SPDR(R) S&P(R) Biotech ETF	90,331	$11,537,978
UAL	United Airlines Holdings, Inc.	119,540	$11,006,047
BILI	Bilibili Inc.	457,844	$10,328,960
APO	Apollo Global Management, Inc.	88,087	$9,814,653
CORN		462,606	$8,511,950
JPM	Jpmorgan Chase & Co	26,729	$7,862,602
RDDT	Reddit, Inc.	57,342	$7,721,100
POET	Poet Technologies Inc.	1,196,057	$7,104,578
MSI	Motorola Solutions, Inc.	14,847	$6,443,152
RKLB	Rocket Lab Corp	74,924	$4,811,619
ADI	Analog Devices Inc	13,704	$4,359,790
VRTX	Vertex Pharmaceuticals Inc	9,357	$4,178,274
MP	MP Materials Corp.	82,791	$3,995,493
PZZA	Papa Johns International Inc	112,977	$3,661,584
ROK	Rockwell Automation, Inc	10,104	$3,626,123
BAC	Bank Of America Corp	74,179	$3,616,226
XHB	State Street(R) SPDR(R) S&P(R) Homebuilders ETF	36,528	$3,606,044
PTCT	Ptc Therapeutics, Inc.	52,713	$3,591,336
PLD	Prologis, Inc.	26,976	$3,565,687
INDA	iShares MSCI India ETF	74,399	$3,484,849
HUM	Humana Inc	19,495	$3,380,238
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

2,133 tracked positions · $3,300,387,922 total · filing declares 8,032 positions · $71,081,488,890 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 2,133 positions by value · page 1 of 43

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Added	193,229	+55,176	$92,280,373	+97.8%	3	$356.88	2.80%
MU	Micron Technology Inc Technology	Reduced	72,926	-82,762	$84,177,752	+60.0%	12	$278.43	2.55%
URA	Global X Uranium ETF	Added	1,820,258	+68,340	$79,545,274	−6.2%	7	unpriced	2.41%
MRVL	Marvell Technology, Inc. Technology	Added	186,955	+139,284	$55,692,024	+1079.5%	9	$170.94	1.69%
UNH	Unitedhealth Group Inc Healthcare	Added	127,354	+101,394	$52,932,143	+653.5%	19	$380.08	1.60%
KKR	KKR & Co. Inc. Financial Services	Added	482,993	+148,099	$44,329,097	+43.1%	6	$103.03	1.34%
BKNG	Booking Holdings Inc. Consumer Cyclical	NEW	191,731	NEW	$34,174,133	NEW	1	unpriced	1.04%
URNM		Added	624,929	+46,576	$32,865,016	−10.0%	2	$67.84	1.00%
OSCR	Oscar Health, Inc. Healthcare	Reduced	1,148,112	-109,665	$32,744,154	+127.0%	7	$15.10	0.99%
CI	Cigna Group Healthcare	Added	91,369	+51,769	$25,188,605	+138.5%	15	$284.60	0.76%
FCEL	Fuelcell Energy Inc Industrials	Added	696,353	+645,535	$25,075,671	+7456.5%	2	$15.62	0.76%
MAR	Marriott International Inc Consumer Cyclical	Reduced	63,890	-41,974	$23,676,995	−31.6%	7	$274.44	0.72%
CHTR	Charter Communications, Inc. Communication Services	Added	164,097	+146,057	$23,336,234	+499.2%	11	$177.76	0.71%
PDD	PDD Holdings Inc. Consumer Cyclical	Added	302,886	+218,472	$23,104,144	+167.9%	2	$95.93	0.70%
DASH	DoorDash, Inc. Consumer Cyclical	NEW	123,933	NEW	$22,869,356	NEW	1	$165.28	0.69%
AG	First Majestic Silver Corp Basic Materials	Reduced	1,312,998	-621,910	$22,268,446	−46.4%	14	$11.48	0.67%
NVDA	Nvidia Corp Technology	NEW	109,278	NEW	$21,865,435	NEW	1	$205.61	0.66%
VSH	Vishay Intertechnology Inc Technology	NEW	405,758	NEW	$21,821,665	NEW	1	$40.91	0.66%
XLK	State Street(R) Technology Select Sector SPDR(R) ETF	NEW	111,928	NEW	$21,324,522	NEW	1	$170.86	0.65%
COHR	Coherent Corp. Technology	Reduced	53,595	-22,087	$21,141,619	+17.3%	14	$153.23	0.64%
		Added	857,064	+83,753	$20,972,356	−4.6%	3	$36.26	0.64%
PFE	Pfizer Inc Healthcare	Added	868,402	+276,169	$20,911,120	+25.7%	6	$26.39	0.63%
ACMR	ACM Research, Inc. Technology	Added	157,056	+65,629	$19,928,835	+453.9%	9	$45.72	0.60%
MSTR	Strategy Inc Technology	Added	220,929	+194,447	$19,205,357	+481.1%	7	$152.27	0.58%
LITE	Lumentum Holdings Inc. Technology	Reduced	22,359	-5,111	$19,185,363	−0.6%	8	$268.37	0.58%
PLTR	Palantir Technologies Inc. Technology	NEW	158,800	NEW	$18,527,196	NEW	1	$136.41	0.56%
NN	Nextnav Inc. Technology	Reduced	1,029,972	-182	$18,364,400	+11.3%	12	$10.46	0.56%
ALK	Alaska Air Group, Inc. Industrials	Added	351,374	+340,007	$18,341,722	+4287.2%	14	$43.04	0.56%
SLB	Slb Limited Energy	Added	386,954	+75,979	$17,989,491	+12.6%	7	$39.66	0.55%
VFC	V F Corp Consumer Cyclical	Added	1,040,180	+24,414	$17,350,202	+0.5%	21	$18.23	0.53%
ECHO	EchoStar CORP Communication Services	Added	162,886	+159,104	$16,532,929	+3634.1%	2	$122.06	0.50%
PAAS	Pan American Silver Corp Basic Materials	Added	368,039	+68,281	$16,484,466	+0.7%	26+	before history	0.50%
GLNG	Golar Lng Ltd Energy	Added	330,159	+169,106	$16,455,124	+88.8%	26+	before history	0.50%
AAOI	Applied Optoelectronics, Inc. Technology	Reduced	110,362	-25,610	$16,351,233	+42.2%	12	$20.14	0.50%
PEP	Pepsico Inc Consumer Defensive	Added	120,280	+107,064	$16,285,912	+693.5%	4	$149.01	0.49%
AAL	American Airlines Group Inc. Industrials	Reduced	894,605	-291,696	$16,165,512	+26.9%	23	$13.21	0.49%
RKT	Rocket Companies, Inc. Financial Services	Reduced	1,016,570	-10,091	$16,010,977	+9.4%	3	$17.99	0.49%
IREN	IREN Ltd Financial Services	Reduced	344,912	-219,091	$15,772,825	−18.4%	10	$9.08	0.48%
CCJ	Cameco Corp Energy	Reduced	151,446	-5,140	$15,426,289	−9.3%	6	$82.19	0.47%
SGHC	Super Group (SGHC) Ltd Consumer Cyclical	Reduced	1,126,513	-495,019	$15,264,251	−12.8%	5	$11.80	0.46%
GLW	Corning Inc Technology	Reduced	59,465	-9,954	$15,189,144	+60.9%	3	$95.42	0.46%
CIFR	Cipher Digital Inc. Technology	NEW	618,316	NEW	$15,148,742	NEW	1	$21.10	0.46%
WDC	Western Digital Corp Technology	NEW	23,641	NEW	$15,099,979	NEW	1	$486.23	0.46%
KEEL	Keel Infrastructure Corp. Technology	Added	2,628,322	+1,596,956	$15,086,568	+650.1%	12	$3.22	0.46%
LMND	Lemonade, Inc. Financial Services	Added	231,456	+51,502	$15,056,212	+33.5%	12	$45.13	0.46%
HOOD	Robinhood Markets, Inc. Financial Services	Reduced	147,484	-11,048	$14,789,695	+34.6%	18	$41.22	0.45%
INTC	Intel Corp Technology	Reduced	105,240	-364,250	$14,694,661	−29.1%	10	$30.57	0.45%
MRNA	Moderna, Inc. Healthcare	Added	203,915	+156,014	$14,280,167	+486.8%	18	$55.97	0.43%
TGT	Target Corp Consumer Defensive	Added	107,879	+7,896	$14,090,076	+16.3%	7	$113.09	0.43%
SIL	Global X Silver Miners ETF	Reduced	176,160	-24,255	$13,645,353	−24.4%	7	unpriced	0.41%

Showing the top 50 of 2,133 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.