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Millennium Management portfolio

Quant or multi-manager

Portfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

Millennium Management reported a $143 bn portfolio of 3,608 companies (3,698 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are IVV, SPY, SPCX.

Stock portfolio
$143 bn
Companies
3,608
3,698 positions (by CUSIP)Top 10: 19%
Turnover
35%
Copying its 13F, 5 years
—
Not calculated: not counted as a concentrated manager

Sections with a free account

What it reported after the quarter end (Q2 2026)

The 13F shows the portfolio as of Jun 30, 2026. Since then Millennium Management has filed these own trades with the SEC (Form 4, when it owns more than 10% of a company or holds a role in it) and stakes above 5% (13D and 13G). It is not everything it did: only what it must report before the next 13F.

  • 13G/ACytek BiosciencesCTKB7.2 % → 5.6 %

    Stake reported in the company · event of Sep 30, 2026 · filed Nov 3, 2026 · filing ↗

  • 13G/ARxSightRXST7.3 % → 5.1 %

    Stake reported in the company · event of Sep 30, 2026 · filed Nov 2, 2026 · filing ↗

  • 13G/ACatalyst Acquisition6 %

    Stake reported in the company · event of Sep 30, 2026 · filed Nov 2, 2026 · filing ↗

  • 13G/AAres Acquisition Corp III3.9 %

    Stake reported in the company · event of Sep 30, 2026 · filed Oct 29, 2026 · filing ↗

  • Stake reported in the company · event of Sep 30, 2026 · filed Oct 26, 2026 · filing ↗

  • 13G/ALincoln InternationalLCLN5.6 % → 2 %

    Stake reported in the company · event of Sep 30, 2026 · filed Oct 26, 2026 · filing ↗

  • 13G/ANetstreitNTST5.4 % → 3.1 %

    Stake reported in the company · event of Sep 30, 2026 · filed Oct 22, 2026 · filing ↗

  • 13G/ALENZ TherapeuticsLENZ5.1 % → 3.7 %

    Stake reported in the company · event of Sep 30, 2026 · filed Oct 21, 2026 · filing ↗

Plus 53 more, in its EDGAR filings.

What changed this quarter

3878 positions with a change (412 new, 1353 added to, 1612 trimmed, 501 sold); also, 63 entered through an IPO, 64 exited through an acquisition or merger, 42 entered through a spin-off. 4 are listed here: those of 0.5 points of the portfolio or more (up to 12).

It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.

Top holdings

Portfolio by sector

  • ● Information Technology 18%
  • ● Industrials 15%
  • ● No sector 14%
  • ● Health Care 11%
  • ● Financials 10%
  • ● Consumer Discretionary 7%
  • ● Materials 5%
  • ● Communication Services 5%
  • ● Real Estate 4%
  • ● Energy 3%
  • ● Consumer Staples 3%
  • ● Utilities 3%
  • ● SPAC / vehículos 1%

Declared options (25)

Besides stocks, Millennium Management declared 17 puts (they gain if the stock falls) and 8 calls (they gain if it rises) with a notional of $128 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.

Stakes above 5% (13D/13G)

Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.

How we classify it

Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%; more than 20% is options; it is a quant or multi-manager firm; its 13F does not reflect a thesis. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided

Managers of a similar size

A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.

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