Look-through
What a portfolio owns once its funds are opened: each company's weight held directly plus its weight inside every fund you hold.
Signed in, this page is worked on your own portfolio, with your own figures. Sign in ›
Launch offer The paid plan, free for three months. No card. Create account ›
Where it misleads
The holdings are a quarter-end photograph published about 60 days later, so a fund's composition today can differ. Funds domiciled in Ireland or Luxembourg (UCITS) do not file with the SEC and cannot be opened here, and neither can commodity or digital-asset trusts, which file no list of holdings. A fund of funds is opened one level down, through the funds it holds. Different share classes of one company (Alphabet's two, for instance) appear as separate lines, as the fund reports them.
How it is computed here
Each US-registered fund or ETF is opened with its latest public Form N-PORT on SEC EDGAR, which lists every holding with its share of the fund. A company's total is your direct weight in it plus, for each fund, the fund's weight in your portfolio times the company's weight in the fund. Tickers come from the SEC's own CUSIP data; lines without one (most non-US shares) are shown by name and country.
Worked example
- VOO's filing of 30 Jun 2026 lists 506 companies; the ten largest, led by NVIDIA Corp at 7.5%, are 36% of the fund.
- So 10% of a portfolio in VOO is 0.75% in NVIDIA Corp alone, before any share of it you hold directly.
- Every company inside is added the same way — the fund's weight in the portfolio times the company's weight in the fund — and then added to what you hold directly.
Real funds, opened with their public Form N-PORT on SEC EDGAR — the demo holds none. Signed in with funds of your own, this is worked on yours.
Where it misleads
The holdings are a quarter-end photograph published about 60 days later, so a fund's composition today can differ. Funds domiciled in Ireland or Luxembourg (UCITS) do not file with the SEC and cannot be opened here, and neither can commodity or digital-asset trusts, which file no list of holdings. A fund of funds is opened one level down, through the funds it holds. Different share classes of one company (Alphabet's two, for instance) appear as separate lines, as the fund reports them.