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Millennium Management
Founder of Millennium, a multi-strategy fund running hundreds of independent trading teams, which produces a very broad 13F.
Millennium Management reported 3693 positions worth $142.92B in U.S.-listed equities as of Q2 2026. It opened 286 new positions that quarter. It exited 336 positions. The largest holding is iShares Core S&P 500 ETF (IVV), at 7.6% of the portfolio. The biggest new position was Space Exploration Techn Corp (SPCX), at $2.98B. The ten largest holdings account for 19% of the total.
Positions as of Q2 2026, per the 13F filed on Aug 14, 2026. Current positions may differ.
Positions opened, added to, trimmed or closed in the Q2 2026 filing.
A 13F does not report cash. It covers only U.S.-listed securities — cash, bonds, foreign stocks and private holdings are invisible in it, which is why Berkshire’s cash pile appears in its 10-Q and not here. What the filing does show is direction: selling more than buying means money left U.S. equities that quarter. Where it went — cash, fixed income, other markets — the form does not say.
Showing the 250 largest, which add up to 60.9% of the portfolio.
Estimated across every position in each quarter, so a single stock can be compared against the whole. Same caveat as elsewhere: a 13F reports the share count on the last day of the quarter, while dividends are paid throughout it.
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