13F Pro13F Pro

SIMPLEX TRADING, LLC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1488542
Institutional-grade research for retail investors

Sector Allocation

  • Technology40.4%$1.6B
  • Other20.5%$784.9M
  • Consumer Discretionary8.3%$317.2M
  • Financials7.5%$289.0M
  • Healthcare6.4%$246.9M
  • Industrials4.7%$179.5M
  • Materials4.3%$163.8M
  • Communication Services2.1%$81.5M
  • Consumer Staples2.1%$81.3M
  • Energy1.6%$62.5M

AUM History

13fpro.ai/research/fund/simplex-trading-llc-1488542

Largest positions — Q2 2026

  • NVDANVDA
    $304.3M
  • ISHARES
    $161.3M
  • ISHARES
    $160.8M
  • GOOGLGOOGL
    $131.6M
  • ISHARES
    $103.5M
  • AMZNAMZN
    $96.6M

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/simplex-trading-llc-1488542

SIMPLEX TRADING, LLC 13F holdings — Q2 2026

$170.6B portfolio (+14.4% QoQ) · 9,154 holdings · Q2 2026 13F · top 10 are 33% of the stock portfolio

Includes $166.7B of put/call options ($89.0B puts, $77.8B calls), which 13F rules report at the value of the underlying shares, not the premium at risk. Stocks alone: $3.8B. Weights use the stock portfolio.

All holdings — SIMPLEX TRADING, LLC (Q2 2026)

9,154 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated. The page lists up to 1,000; every position is in the Excel export.

Company
— PUTISHARES TR - PUT$7.8B+15%
MU$MUPUTMICRON TECHNOLOGY INC$3.6B+48%
NVDA$NVDACALLNVIDIA CORP$3.5B-8%
— CALLISHARES TR - CALL$3.3B-20%
NVDA$NVDAPUTNVIDIA CORP$3.3B-15%
TSLA$TSLACALLTesla, Inc.$2.9B-24%
TSLA$TSLAPUTTesla, Inc.$2.4B-30%
GOOG$GOOGCALLAlphabet Inc.$2.4B-8%
AAPL$AAPLCALLApple Inc.$2.4B-7%
MU$MUCALLMICRON TECHNOLOGY INC$2.2B-6%
META$METACALLMeta Platforms, Inc.$2.0B-12%
SNDK$SNDKPUTSandisk Corp$2.0B+202%
AMD$AMDPUTADVANCED MICRO DEVICES INC$2.0B-3%
GOOG$GOOGPUTAlphabet Inc.$1.9B+7%
MSFT$MSFTCALLMICROSOFT CORP$1.7B+11%

What changed in Q2 2026

Against the previous quarter's 13F: 1,721 new, 3,689 added to, 3,483 trimmed, 1,492 sold out. Share-count changes; largest moves by dollar size first.

New positions (1,721)

  • CALLSPACE EXPLORATION TECHN CORP - CALL$401.3M

    first bought this quarter

  • PUTSPACE EXPLORATION TECHN CORP - PUT$322.9M

    first bought this quarter

  • MU$MUMICRON TECHNOLOGY INC$60.8M

    first bought this quarter

  • ROUNDHILL ETF TRUST - COM$46.2M

    first bought this quarter

  • CBRS$CBRSCALLCerebras Systems Inc.$43.2M

    first bought this quarter

  • CUK$CUKCALLCARNIVAL PLC$37.6M

    first bought this quarter

+1,715 more in the Excel export

Added to (3,689)

  • QQQ$QQQPUTINVESCO QQQ TRUST, SERIES 1+22%

    now $10.1B

  • SNDK$SNDKPUTSandisk Corp+202%

    now $2.0B

  • MU$MUPUTMICRON TECHNOLOGY INC+48%

    now $3.6B

  • PUTISHARES TR - PUT+15%

    now $7.8B

  • SPY$SPYCALLSPDR S&P 500 ETF TRUST+5%

    now $17.0B

  • QQQ$QQQCALLINVESCO QQQ TRUST, SERIES 1+5%

    now $8.0B

+3,683 more in the Excel export

Trimmed (3,483)

  • SPY$SPYPUTSPDR S&P 500 ETF TRUST-21%

    now $24.9B

  • TSLA$TSLAPUTTesla, Inc.-30%

    now $2.4B

  • TSLA$TSLACALLTesla, Inc.-24%

    now $2.9B

  • CALLISHARES TR - CALL-20%

    now $3.3B

  • GLD$GLDPUTSPDR GOLD TRUST-48%

    now $739.9M

  • GLD$GLDCALLSPDR GOLD TRUST-28%

    now $1.5B

+3,477 more in the Excel export

Sold out (1,492)

  • CCL$CCLPUTCarnival Corp Ltd.was $43.3M
  • CCL$CCLCALLCarnival Corp Ltd.was $36.3M
  • VANECK ETF TRUSTwas $35.9M
  • INTC$INTCINTEL CORPwas $33.4M
  • SLB$SLBSLB LIMITED/NVwas $28.1M
  • ISHARES TRwas $22.7M

+1,486 more in the Excel export

Holdings by quarter

Every 13F SIMPLEX TRADING, LLC has filed, 40 earlier quarters. Pick one to see what it held then.

Email me the moment this fund files its next 13FPro

Portfolio Overview

SIMPLEX TRADING, LLC disclosed 9,154 positions worth $170.6B in its Form 13F-HR for Q2 2026 — $3.8B in common stock plus $166.7B of put/call option positions (reported at underlying notional value, not premium at risk), led by $NVDA (NVIDIA CORP) at 7.9% of the equity portfolio. During the quarter the fund opened 1721 new positions and exited 1492 and a full exit from $CCL. The portfolio is most concentrated in Technology (40.4% of disclosed assets). All figures are sourced directly from SIMPLEX TRADING, LLC’s Form 13F-HR filing with the SEC under CIK 1488542.

Browse Top Institutional Investors

13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.

to search all 8,700+ institutional filers.

AI-Powered Hedge Fund Analysis: SIMPLEX TRADING, LLC

13F Pro is an AI hedge fund tracker and stock research platform. For SIMPLEX TRADING, LLC (SEC CIK: 1488542), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in SIMPLEX TRADING, LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.