See How Much Two ETFs Actually Share

Pick two ETFs. We pull their full holdings and show you the weighted overlap, the top common positions, and how the sector mix compares. Free, no signup.

Official holdings data, refreshed periodically.

Compare two ETFs

Why overlap matters

Holding two ETFs feels like diversification — two tickers, two different funds. But if you own both VOO and QQQ, a large slice of your portfolio is the same handful of mega-cap tech names, just counted twice with different labels. That's concentration risk hiding inside what looks like a balanced portfolio.

Weighted overlap measures the part that really is shared: for each holding that appears in both ETFs, we take the minimum of its weight in each side and sum those minimums. The result is a single number you can act on — keep both, drop one, or rebalance.

How this analyzer works

Full holdings, not a top-10 approximation

We pull the complete published holdings list for each ETF — typically 100+ positions for sector funds, 500+ for broad index ETFs.

Weighted overlap, not a name-count

Two ETFs that share 50 names but with 0.1% each in one and 5% each in the other do not actually overlap much. Weighting captures that.

Coverage shown both directions

You see what share of ETF A sits inside ETF B and vice versa. Both directions matter — they tell a different story when the ETFs differ in size.

Official sector breakdown

The sector chart uses the same sector tags Alpha Vantage publishes — no homemade categorization. Title-cased for readability.

Frequently asked questions

ETF overlap is the share of holdings (weighted by position size) that two ETFs have in common. If you own VOO and QQQ, you might think you have two different investments — but they share a lot of the same large-cap tech names, so a meaningful slice of your portfolio is the same stocks twice.

For every holding that appears in both ETFs we take the minimum of its weight in each (the part that is genuinely "shared"), then sum those minimums across all common holdings. It is the simplest honest answer to "how much of these two ETFs is the same investment?".

Holdings come from Alpha Vantage's ETF profile feed and are refreshed periodically. Both the full holdings list and the official sector breakdown are pulled directly — no manual curation.

Because the two ETFs typically have different sizes. If a focused 25-stock ETF is mostly held inside a broad 500-stock index, almost 100% of the focused one is inside the broad one — but only a small fraction of the broad one is the focused one. Both numbers matter when you are deciding whether to keep both.

No. This tool is built for ETFs and mutual funds with a published holdings list. If you enter a single stock, you will get a clear error message asking for an ETF ticker instead.

Run the same check across your whole portfolio.

AWALYT runs the same overlap math across every ETF in a real portfolio, plus the backtests behind your allocation. Sign up for early access.

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Disclaimer

Informational only — not investment advice. This tool compares the publicly-disclosed holdings of two ETFs to show how much they overlap. Overlap is a descriptive statistic, not a judgment: a high overlap can be intentional (e.g. concentration in a strategy you already trust), and a low overlap doesn't automatically mean better diversification. Holdings data is provided by third parties and may be incomplete or delayed. Past holdings don't predict future allocations. Awalyt is not a registered investment advisor. Make investment decisions based on your own research and, if appropriate, with a qualified professional.