Rebuilt every trading night. Data as of Oct 9, 2026.

ETF overlap tool

VOO and VTI hold 89% of their money in the same securities, by holdings dated Aug 31, 2026. Pick any two to five of 2,849 ETFs to see how much of their weight they hold in common.

Compare funds

The tool runs in your browser and needs JavaScript. The table below gives the overlap of the most-searched pairs without it, and every fund's holdings are published as JSON under open data.

Most-searched pairs

The 30 ETF pairs searched most often in the US, most searched first, each with its comparison page.

How overlap is measured

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. With three or more funds a security counts only when every fund holds it, at the smallest of their weights.

Each weight is the fund's filed share of its net assets, from its issuer's holdings file or its latest SEC filing, as of the date shown. Cash, money market sweeps and other cash-like lines are left out: two funds each holding cash do not hold the same thing.

The tool leaves out 4 funds whose published holdings either list only the largest positions or add up to more than the fund, because an overlap computed from them would be wrong.

Related

ETF comparisons: two funds head to head

Which ETFs hold a stock: every fund holding a company, by weight

My portfolio: what a set of ETFs owns, looked through

Portfolio methodology: where each book comes from

Open data: every fund's holdings and every published overlap as JSON