IEFA vs IWDA overlap

23% by weight, as of October 14, 2026: light overlap. 654 companies appear in both funds; they make up 85% of IEFA and 23% of IWDA.

The largest shared positions are ASML, HSBA, ROP, SHEL and NOVN. Ranked by the smaller of the two weights, which is the part you would own twice.

Out of every $100 split evenly between them, about $23 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,965 names only in IEFA, 594 only in IWDA. Half in each behaves like 223 equally weighted stocks, against 261 for IEFA alone and 83 for IWDA alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.

IWDA is iShares Core MSCI World UCITS ETF (ISIN IE00B4L5Y983), an Irish-domiciled UCITS fund on the MSCI World index. Next to IEFA, 23% of the money is the same, spread over 654 companies both hold, as of October 14, 2026.

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 IEFA vs EUNL also overlaps 23%.

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.