IWM vs VUAA overlap

None by holdings, as of September 24, 2026: no company appears in both funds. By sector, 64% of their money sits in the same sectors, led by Information Technology.

None. IWM and VUAA have no holding in common.

No. Out of every $100 split evenly between them, none buys the same company. Half in each gives you 2,478 different holdings that behave like 165 equally weighted stocks, against 842 for IWM alone and 43 for VUAA alone. Whether that mix suits you depends on what you want to own; this is a description, not advice.

VUAA is Vanguard S&P 500 UCITS ETF (USD) Accumulating (ISIN IE00BFMXXD54), an Irish-domiciled UCITS fund on the S&P 500 index. Next to IWM, it holds no company in common, as of September 24, 2026.

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 IWM and VUAG share no company either.

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.