etf overlap tool · moderate overlap
IWF vs IWDA overlap
97% of IWF's money sits in companies IWDA also holds; 43% of the two funds is the same money, spread over 214 companies both hold.
Holdings as of October 16, 2026 · source: iShares (IWF), iShares (IWDA) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold IWF and IWDA with other funds or stocks? The free portfolio optimizer opens IWF and IWDA beside the rest of what you own: the companies you hold twice, what the funds cost a year, and where the next deposit should go. No account.
The companies you would own twice
What only one of them gives you
Where each fund puts its money
IWF and IWDA: what people ask
How much do IWF and IWDA overlap?
43% by weight, as of October 16, 2026: moderate overlap. 214 companies appear in both funds; they make up 97% of IWF and 49% of IWDA.
Which stocks do IWF and IWDA both hold?
The largest shared positions are AAPL, NVDA, MSFT, GOOGL and GOOG. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both IWF and IWDA?
Out of every $100 split evenly between them, about $43 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 157 names only in IWF, 1,034 only in IWDA. Half in each behaves like 39 equally weighted stocks, against 21 for IWF alone and 85 for IWDA alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
What is IWDA, next to IWF?
IWDA is iShares Core MSCI World UCITS ETF (ISIN IE00B4L5Y983), an Irish-domiciled UCITS fund on the MSCI World index. Next to IWF, 43% of the money is the same, spread over 214 companies both hold, as of October 16, 2026.
Does the IWF vs IWDA overlap apply to other tickers?
Yes. IWDA also trades as SWDA (London, GBP; Borsa Italiana, EUR) and EUNL (Xetra, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so IWF vs EUNL also overlaps 43%.
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 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.