SIZE UCITS Equivalent: IWSZ
SIZE (iShares MSCI USA Size Factor ETF, iShares) is a US-listed ETF you can't buy from Europe. Its closest UCITS equivalent is IWSZ — iShares Edge MSCI World Size Factor UCITS ETF USD (Acc) — a 78% match by index, holdings and cost.
SIZE vs IWSZ: side-by-side
| SIZE (US) | IWSZ (UCITS) | |
|---|---|---|
| Fund | iShares MSCI USA Size Factor ETF | iShares MSCI World Mid-Cap Equal Weight UCITS ETF USD (Acc) |
| Strategy | US size factor (MSCI USA Risk Weighted) | Size factor equity |
| Domicile | United States | Ireland |
| Ongoing charge (TER) | — | 0.30% |
| Income | Distributing (quarterly) | Accumulating (reinvests income) |
| Trailing yield | 1.3% | — (accumulating) |
| Trading currency | USD | USD |
| Fund size | — | 396M |
| Buyable by EU/UK retail investors | Usually blocked (no PRIIPs KID) | Yes |
| US estate-tax exposure (non-US investors) | Yes, above $60k | No |
| US dividend withholding | Withheld on each payout (15% with a W-8BEN, else 30%) | 15% inside the fund (Ireland–US treaty), nothing extra to you |
UCITS data from UCITSIncome, updated October 2026. SIZE figures are indicative.
About SIZE
Why you can't buy SIZE in Europe
US-domiciled ETFs like SIZEdon't publish the EU “KID” disclosure document required by the PRIIPs regulation, so European and other non-US brokers block the order. It isn't illegal — you simply buy the UCITS equivalent (IWSZ) instead. UCITS funds are also more tax-efficient for non-US investors: lower US dividend withholding and no US estate-tax exposure. Read the full explanation →
Track IWSZ and other UCITS income ETFs
Get distribution dates, yield changes and new US→UCITS matches. Free, occasional, no spam.
Similar US ETF equivalents
Matches are based on the underlying index, holdings overlap and cost, sourced from UCITSIncome data. Information only — not financial advice. Always do your own research before investing.