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SIMPLEX TRADING, LLC

FundChicago · 2 holdings reports on file, from 2026 · Not one of the 16 funds we watch
$170.6B
Reported value of US stock holdings on Jun 30, the filing's own figure
9,154 positions · filed Aug 12, 43 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 12 · against the report before it

New positions

1,775, biggest 4
no ticker SPACE EXPLORATION TECHN CORP 2.3M shares0.2% of this fund's holdings
no ticker SPACE EXPLORATION TECHN CORP 1.9M shares0.2% of this fund's holdings
MU MICRON TECHNOLOGY INC 52,682 sharesunder 0.1% of this fund's holdings
no ticker CARNIVAL CORP LTD 2.1M sharesunder 0.1% of this fund's holdings

Sold out

1,548, biggest 4
INTC INTEL CORP All 758K shares
SLB SLB LIMITED All 547K shares
NFLX NETFLIX INC. All 185K shares
NVO NOVO-NORDISK A S All 393K shares

Added to

3,587, biggest 4
no ticker STATE STR SPDR S&P 500 ETF T +1.1M shares+5%
no ticker INVESCO QQQ TR +2.5M shares+22%
no ticker INVESCO QQQ TR +527K shares+5%
no ticker ISHARES TR +5.1M shares+15%

Trimmed

3,368, biggest 4
no ticker STATE STR SPDR S&P 500 ETF T −8.7M shares−21%
no ticker NVIDIA CORPORATION −1.6M shares−8%
no ticker ISHARES TR −6.5M shares−20%
no ticker NVIDIA CORPORATION −2.8M shares−15%

Top holdings

Reference, not news
Top holdings · 9,154 positionsSwipe →
#TickerCompanyShares Share of this fund's holdingsvs last quarter
1 STATE STR SPDR S&P 500 ETF T 33.4M 14.6% −21%
2 STATE STR SPDR S&P 500 ETF T 22.7M 9.9% +5%
3 INVESCO QQQ TR 13.8M 5.9% +22%
4 INVESCO QQQ TR 10.9M 4.7% +5%
5 ISHARES TR 39.4M 4.5% +15%
6 MICRON TECHNOLOGY INC 3.1M 2.1% +48%
7 NVIDIA CORPORATION 17.5M 2.1% −8%
8 ISHARES TR 26.9M 2.0% −20%

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.