iShares MSCI World Small Cap UCITS ETF USD (Acc)
ISIN IE00BF4RFH31 · WKN A2DWBY · IUSN EU 
The iShares MSCI World Small Cap UCITS ETF USD (Acc) is an exchange-traded index fund (ETF) from iShares that tracks the MSCI World Small Cap index physically. With a total expense ratio (TER) of 0.35% per year it is in the mid cost range for its category. Income is automatically reinvested (accumulating); it trades as a Europe-domiciled UCITS fund. We have no holdings list for this fund itself. ZPRS, which tracks the same index, holds 3675 positions, the largest currently Moderna Inc. at 0.71%. The full composition plus the sector and country breakdown are shown below; it is one of 104 ETFs we cover.
The ten largest holdings make up 2.5% of the fund, out of 3,675 in total. The largest sector is Industrials at 19.1% (as of Oct 29, 2026).
Alysly Data Analysis: IUSN
Data Points
The map shows how IUSN connects to ETFs, indices and other names. Each link is based on measured data and is not a recommendation.
- MSCI World Small Cap Index · tracks
The 50 Largest Holdings
of 3,675 in total · as of Oct 29, 2026 · composition based on index tracker ZPRS
| # | Stock | Ticker | Weight |
|---|---|---|---|
| 1 |  Moderna Inc. | MRNA | 0.71% |
| 2 | Tenet Healthcare Corporation | 0.23% | |
| 3 | Guardant Health Inc. | 0.21% | |
| 4 |  Viatris Inc. | VTRS | 0.21% |
| 5 | US Foods Holding Corp. | 0.21% | |
| 6 | Royal Gold Inc. | 0.20% | |
| 7 | Rubrik Inc. Class A | 0.20% | |
| 8 | Ovintiv Inc | 0.20% | |
| 9 | Roku Inc. Class A | ROKU | 0.19% |
| 10 | East West Bancorp Inc. | 0.18% | |
| 11 | Host Hotels & Resorts Inc. | HST | 0.18% |
| 12 | Charles River Laboratories International Inc. | CRL | 0.18% |
| 13 | ITT Inc. | 0.17% | |
| 14 | Reinsurance Group of America Incorporated | 0.17% | |
| 15 | Revvity Inc. | RVTY | 0.17% |
| 16 | Woodward Inc. | 0.17% | |
| 17 | Permian Resources Corporation Class A | 0.17% | |
| 18 | WESCO International Inc. | 0.17% | |
| 19 |  Zebra Technologies Corporation Class A | ZBRA | 0.17% |
| 20 | Dynatrace Inc. | 0.17% | |
| 21 | APA | APA | 0.17% |
| 22 | TD SYNNEX Corporation | 0.17% | |
| 23 | Nutanix Inc. Class A | 0.16% | |
| 24 | Jones Lang LaSalle Incorporated | 0.16% | |
| 25 | MACOM Technology Solutions Holdings Inc. | 0.16% | |
| 26 | Medpace Holdings Inc. | 0.16% | |
| 27 | Tyler Technologies Inc. | TYL | 0.16% |
| 28 | HF Sinclair Corporation | 0.16% | |
| 29 | RenaissanceRe Holdings Ltd. | 0.15% | |
| 30 | Exelixis Inc. | 0.15% | |
| 31 | Stanley Black & Decker Inc. | SWK | 0.15% |
| 32 | Equitable Holdings Inc. | 0.15% | |
| 33 | APi Group Corporation | 0.15% | |
| 34 | Clean Harbors Inc. | 0.15% | |
| 35 | Halozyme Therapeutics Inc. | 0.15% | |
| 36 | Hasbro Inc. | HAS | 0.14% |
| 37 | Lincoln Electric Holdings Inc. | 0.14% | |
| 38 | Allegion Public Limited Company | ALLE | 0.14% |
| 39 | DocuSign Inc. | DOCU | 0.14% |
| 40 | Assurant Inc. | AIZ | 0.14% |
| 41 | Performance Food Group Co | 0.14% | |
| 42 | Carlisle Companies Incorporated | 0.14% | |
| 43 | CACI International Inc Class A | 0.14% | |
| 44 | Unum Group | 0.14% | |
| 45 |  Ralph Lauren Corporation Class A | RL | 0.14% |
| 46 | James Hardie Industries PLC | 0.14% | |
| 47 | RBC Bearings Incorporated | 0.14% | |
| 48 | Avery Dennison Corporation | AVY | 0.13% |
| 49 | Trimble Inc. | TRMB | 0.13% |
| 50 | Akamai Technologies Inc. | AKAM | 0.13% |
Top Sectors
Geographic Breakdown
Data and Charts: IUSN
Effective means the number of equally weighted holdings that would produce the same spread as this fund's 10 counted positions.
Key Facts
| Distribution | Accumulating |
|---|---|
| Product structure | Physical |
NAV History
The chart shows net asset value per share and is set to the current year by default. The NAV is up 12.7% year to date and up 16.1% over twelve months. The last recorded close on October 30, 2026, was at 74% of the 52-week range.
Net asset value per share in USD, set once per trading day. It is not an exchange price. Distributions are not added back, so for distributing funds the value drops by the amount paid out on the distribution date.
Net asset values from our database since Mar 27, 2018, 2,180 daily values.
Performance
Calculated from the fund's NAV history.
| Trailing (1Y) | +16.1% | Year to date | +12.7% |
|---|---|---|---|
| Calendar year 2019 | +25.7% | ||
| Calendar year 2020 | +15.8% | ||
| Calendar year 2021 | +15.8% | ||
| Calendar year 2022 | -18.6% | ||
| Calendar year 2023 | +16.0% | ||
| Calendar year 2024 | +7.9% | ||
| Calendar year 2025 | +19.8% |
Published Fund Performance
| 1 year annualized | +15.54% |
|---|---|
| 3 years annualized | +17.75% |
| 5 years annualized | +7.00% |
Periods of one year or longer are annualized, as of Sep 30, 2026.
Fundamental Analysis: IUSN
Tax (Germany)
Equity ETF: 30% partial exemption (Teilfreistellung). Accumulating → Vorabpauschale advance tax applies. Details.
Cost Example
With a total expense ratio (TER) of 0.35%, IUSN is the lowest-cost of the 3 funds on this index that we track.
Alternative ETFs on the Same Index
- State Street® SPDR® MSCI World Small Cap UCITS ETF (Acc) · TER 0.45% · 1.7 B
- State Street® SPDR® MSCI World Small Cap UCITS ETF (Dist) · TER 0.45% · 1.7 B