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GROUP ONE TRADING LLC

FundChicago · 2 holdings reports on file, from 2026 · Not one of the 16 funds we watch
$71.1B
Reported value of US stock holdings on Jun 30, the filing's own figure
7,824 positions · filed Aug 14, 45 days after the quarter ended
Not watched

Aeon posts holdings changes on the feed for the 16 watched managers; this fund's holdings are shown here each quarter.

Why no record

A holdings report says nothing about how a manager has done, because it gives no prices. That is why managers are never ranked.

What changed last quarter

Quarter ended Jun 30 · filed Aug 14 · against the report before it

New positions

1,401, biggest 4
no ticker ROUNDHILL ETF TRUST 3.7M shares0.4% of this fund's holdings
no ticker ROUNDHILL ETF TRUST 1.7M shares0.2% of this fund's holdings
no ticker SPACE EXPLORATION TECHN CORP 753K shares0.2% of this fund's holdings
DRAM ROUNDHILL ETF TRUST 1.5M shares0.2% of this fund's holdings

Sold out

1,399, biggest 4
no ticker FAIR ISAAC CORP All 33,100 shares
no ticker TERNS PHARMACEUTICALS INC All 602K shares
CYTK CYTOKINETICS INC All 364K shares
no ticker EVEREST GROUP LTD All 70,000 shares

Added to

2,828, biggest 4
no ticker MICRON TECHNOLOGY INC +593K shares+40%
no ticker MICRON TECHNOLOGY INC +348K shares+26%
no ticker SANDISK CORP +156K shares+39%
no ticker META PLATFORMS INC +287K shares+19%

Trimmed

3,021, biggest 4
no ticker SPDR GOLD TR −298K shares−7%
no ticker INTEL CORP −2.2M shares−31%
no ticker UNITEDHEALTH GROUP INC −1.1M shares−40%
no ticker SPDR GOLD TR −319K shares−21%

Top holdings

Reference, not news
Top holdings · 7,824 positionsSwipe →
#TickerCompanyShares Share of this fund's holdingsvs last quarter
1 MICRON TECHNOLOGY INC 2.1M 3.4% +40%
2 MICRON TECHNOLOGY INC 1.7M 2.8% +26%
3 SPDR GOLD TR 3.7M 1.9% −7%
4 SANDISK CORP 553K 1.8% +39%
5 TESLA INC 2.8M 1.7% −2%
6 META PLATFORMS INC 1.8M 1.4% +19%
7 VANECK ETF TRUST 3.0M 1.4% +107%
8 MICROSOFT CORP 2.4M 1.3% +105%

Ranked by value in the report. Share of this fund's holdings means the position's value as a share of the fund's reported total. It is not a share of any company; that is what a stake percent means.

Stakes filed by this fund

Schedules 13D and 13G · 5 on file
StakeStake reportSep 8
1.4% of the shares CATO CATO CORP
Schedule 13G: passive
Amendment
StakeStake reportSep 8
0.7% of the shares POET POET TECHNOLOGIES INC.
Schedule 13G: passive
Amendment
StakeStake reportAug 13
5% of the shares CATO CATO CORP
Schedule 13G: passive
First filing
StakeStake reportAug 13
5.5% of the shares POET POET TECHNOLOGIES INC.
Schedule 13G: passive
First filing
StakeStake reportMar 5
10.7% of the shares QNCX Quince Therapeutics, Inc.
Schedule 13G: passive
First filing