etf overlap · heavy overlap
IWF vs VUAA overlap
59% of IWF and VUAA is the same money, spread over 179 companies both funds hold.
Holdings as of September 30, 2026 · source: iShares (IWF), Vanguard (VUAA) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
The companies you would own twice
What only one of them gives you
Where each fund puts its money
IWF and VUAA: what people ask
How much do IWF and VUAA overlap?
59% by weight, as of September 30, 2026: heavy overlap. 179 companies appear in both funds; they make up 94% of IWF and 68% of VUAA.
Which stocks do IWF and VUAA both hold?
The largest shared positions are NVDA, AAPL, MSFT, GOOGL and AVGO. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both IWF and VUAA?
Out of every $100 split evenly between them, about $59 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 192 names only in IWF, 324 only in VUAA. Half in each behaves like 30 equally weighted stocks, against 20 for IWF alone and 43 for VUAA alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
Is VUAA the European version of IWF?
Partly: 59% of the money in VUAA and IWF is the same, as of September 30, 2026. VUAA is Vanguard S&P 500 UCITS ETF (USD) Accumulating (ISIN IE00BFMXXD54), an Irish-domiciled UCITS fund on the S&P 500 index. European brokers generally don't sell US-listed ETFs such as IWF to retail clients, because those funds publish no KID (the PRIIPs key information document); UCITS funds do.
Does the IWF vs VUAA overlap apply to other tickers?
Yes. VUAA also trades as VUAG (London, GBP), and VUSA (ISIN IE00B3XXRP09) is its distributing share class. Each is the same portfolio in another currency, on another exchange or paying its dividends out, so IWF vs VUAG also overlaps 59%.
How is ETF overlap calculated here?
For every company held by both funds we take the smaller of its two weights and add them up. The weights come from the full holdings files iShares and Vanguard publish, not a top-10 sample, and companies are matched by their ISIN so share classes stay apart. Sector overlap applies the same rule to the issuers' sector labels; "behaves like N equally weighted stocks" is one over the sum of the squared weights.
Weights come from each issuer's published holdings file and are matched company by company on their ISIN. Cash, futures and currency positions are left out. This page describes what the funds hold; it is not investment advice.