GROUP ONE TRADING LLC

CIK 0000932540 · Q2 2026

13F Equity AUM

$71.1B

+36.2% QoQ

Positions

5,887

-149 QoQ

AUM Rank

#144

Top 2%

Skill Alpha (FF)

+1.0%/yr^ns

No Clear Edge

Rank #1,861 · Top 22%

vs S&P +0.8%/yr (unadj.)

Quarters Tracked

~13 years

Portfolio Concentration

Top 5: 11.5%Top 10: 17.8%Top 20: 26.0%

MU3.4%

MU2.8%

GLD1.9%

SNDK1.8%

TSLA1.7%

META PLATFORMS INC1.4%

VANECK ETF TRUST1.4%

MSFT1.3%

SNDK1.2%

INTC1.0%

Others (5877)82.2%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Unclassified35.8%

Technology26.4%

Fund10.8%

Financial Services4.7%

Healthcare4.7%

Consumer Cyclical4.0%

Industrials4.0%

Energy3.1%

Other6.5%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 5887Median: 0.00%Avg: 0.02%

0–0.5%

5861(70.6%)

0.5–1%

17(12.6%)

1–3%

8(13.4%)

3–5%

1(3.4%)

5%+

0(0.0%)

Count of positions per weight bucket — (%) = combined portfolio weight

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Portfolio Overlap

Shared: 0Unique: 5,887vs 20 funds

0%Low

5,887

Fund positions

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

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Position Changes This Quarter

New1400Increased2905Decreased3100Exited1397

New Positions

ROUNDHILL ETF TRUST0.4%

+3.7M

SPACE EXPLORATION TE…0.2%

+753K

ROUNDHILL ETF TRUST0.2%

+1.7M

ROUNDHILL ETF TRUST0.1%

+1.5M

SPACE EXPLORATION TE…0.1%

+623K

CEREBRAS SYSTEMS INC0.1%

+393K

HONEYWELL AEROSPACE …0.1%

+329K

AMERIPRISE FINL INC0.1%

+112K

BKNG0.1%

+267K

TT0.1%

+84K

Increased

POET0.2%

+9.5M(+134%)

NOKBF0.1%

+5.1M(+202%)

HIVE DIGITAL TECHNOL…0.0%

+5.0M(+588%)

IQ0.0%

+4.9M(+591%)

FORD MTR CO0.1%

+3.5M(+1807%)

EOSE0.1%

+3.5M(+49%)

WULF0.3%

+3.2M(+77%)

BLBLF0.1%

+3.1M(+536%)

PPLT0.1%

+2.8M(+641%)

SERVE ROBOTICS INC0.0%

+2.7M(+971%)

Decreased

STRIVE INC0.4%

-10,217,600(-30%)

OWL0.0%

-6,852,100(-84%)

GRABW0.0%

-4,918,500(-40%)

RANI THERAPEUTICS HL…0.0%

-3,011,400(-100%)

FLAGSTAR BANK NATION…0.1%

-2,588,400(-47%)

SLV0.4%

-2,328,200(-32%)

SILJ0.0%

-2,251,123(-93%)

INTC1.0%

-2,221,000(-31%)

SGHC0.0%

-2,153,800(-73%)

SELLAS LIFE SCIENCES…0.1%

-2,005,800(-23%)

Exited

HONEYWELL INTL INC

-229,000

FICO

-33,100

TERN

-602,400

CYTK

-363,997

UNITED THERAPEUTICS …

-47,700

CNC

-583,670

CCL

-878,200

QC10

-1,391,073

EVEREST GROUP LTD

-70,000

MSI

-50,300

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

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Holdings

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