257 essays 1,087 funds measured independent · not paid by any fund or issuer we cover

Fund · measured from SEC filings

EDGAR holdings

EDGAR does not file Form N-PORT, so its holdings cannot be measured the way the rest of this site measures funds. Saying so is more useful than leaving it out.

Not measurable from filings

EDGAR is structured as a unit investment trust or commodity trust rather than a registered investment company, so it does not file Form N-PORT and its holdings cannot be measured the way the rest of the concentration table is. Saying so is more useful than quietly leaving it out.

Essays that examine EDGAR

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  • QQQ Holdings: All 105 Positions, the Top 10 at 45%, and Why It Behaves Like 34 Stocks

    What the Invesco QQQ Trust actually held on 30 June 2026, from its SEC Form N-PORT filing: 102 stocks plus three cash and futures lines, the fifty largest with weights, and the arithmetic that turns "105 holdings" into an effective count of 34. Nvidia 7.6%, Apple 6.7%, Micron 5.6%; the top ten are 45.0% and the top fifty 87.5%. Overlap with VOO, VGT, XLK and QQQM, and how the concentration has moved since 2020.

  • SOXL Holdings: What the 3x Semiconductor ETF Actually Owns

    SOXL's SEC filing lists 42 positions: 30 semiconductor stocks worth 57% of net assets, eight index swaps with a notional of $41 billion (243% of net assets), and 39% in Treasury money funds. The stocks and the swap notional add to exactly 300%. Here is what the 3x semiconductor ETF holds, where the leverage comes from, who the counterparties are, and why its holdings count cannot be read like SOXX's.

  • Why 2,017 IWM Holdings Read as 33: Securities Lending in the Russell 2000 ETF

    IWM, the iShares Russell 2000 ETF, files 2,017 holdings but our concentration measure read it as 33. The cause is a 17% cash-collateral position from securities lending, flagged in the filing itself; set it aside and the fund's own investments behave like about 840. Seventy-three funds on this site, including IJH, IJR, RSP, LQD and HYG, had the same problem. What we found, what we changed today, and what is still open.

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