ETF · iShares
IUSF iShares MSCI USA Mid-Cap Equal Weight UCITS ETF
ISIN IE00BD1F4K20London Stock Exchange: IUSFBlackRock, Inc.
Latest close
LSE£9.85
on
- Ongoing charge
- 0.21% a year
- Fund size
- £164m
Source: TradingView, as of , at least 15 min delayed
At a glance
As of 30/09/2026, IUSF (iShares MSCI USA Mid-Cap Equal Weight UCITS ETF, ISIN IE00BD1F4K20) closed at £9.85 on the London Stock Exchange. Its ongoing charge is 0.21% a year (about £21 on £10,000). Over the five years to 30/09/2026 its total return was +34.5%, or +5.1% after UK CPIH inflation.
Past returns
- 1 year to 30/09/2026
- +8.9%
- +5.5% after inflation (UK CPIH)
- 3 years to 30/09/2026
- +35.8%
- +22.6% after inflation (UK CPIH)
- 5 years to 30/09/2026
- +34.5%
- +5.1% after inflation (UK CPIH)
£1,000 put in five years ago would have been worth about £1,345 on 30/09/2026 — about £1,051 in today’s spending power, once price rises are taken out. Past performance is not a guide to future returns.
Returns: TradingView (delayed data). Inflation: ONS CPIH, latest month published.
How we work it out:ReturnsReturns after inflationTotal returnReal returnCPIH
Calendar-year and 12-month returns
Calendar-year returns of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD in pounds (price, with income reinvested in the fund): 2022 −8.6%, 2023 +10.8%, 2024 +14.9%, 2025 +0.5%; 2026 to 30/09/2026 +7.3%. Returns of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD in pounds (price, with income reinvested in the fund) over the 12 months to 30/09/2026: +9.1%; to 30/09/2025: +5.9%; to 30/09/2024: +16.3%; to 30/09/2023: +0.5%; to 30/09/2022: −1.6%.
| Year | Return | After inflation | Return shown as a bar |
|---|---|---|---|
| to | +7.3% | +4.3% | |
| +0.5% | −3.0% | ||
| +14.9% | +11.0% | ||
| +10.8% | +6.4% | ||
| −8.6% | −16.3% |
| 12 months to | Return | After inflation |
|---|---|---|
| from | +9.1% | Not available |
| from | +5.9% | +1.8% |
| from | +16.3% | +13.3% |
| from | +0.5% | −5.5% |
| from | −1.6% | −9.6% |
Source: Fundology, from recorded closes and the data vendor’s weekly price history, as of , inflation: ONS CPIH
How we work it out:Calendar-year returnsWhat a calendar-year return isAccumulating and distributing
Risk: volatility and largest fall
Volatility (annualised)
15.3%over 5 years
| 1 year | 11.4% |
|---|---|
| 3 years | 13.7% |
| 5 years | 15.3% |
Annualised from weekly returns. Higher means bumpier.
- Largest fall since October 2021
- −20.7%
- From to
- Lowest 12-month return
- −9.8%
- 12 months to
- Highest 12-month return
- +33.2%
- 12 months to
- Below its highest weekly close since October 2021
- 5.2%
- High of , latest
In words: Volatility of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD in pounds, annualised from weekly returns to 30/09/2026: 11.4% over 1 year, 13.7% over 3 years, 15.3% over 5 years. Largest fall in the price of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD since October 2021, in pounds: −20.7% from 17/01/2025 to 11/04/2025. The lowest 12-month return of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD in pounds (price, with income reinvested in the fund) since January 2021 was −9.8% (12 months to 18/08/2023); the highest was +33.2% (12 months to 22/11/2024). On 30/09/2026 the price of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD was 5.2% below its highest weekly close since October 2021 (13/08/2026), in pounds.
Source: Fundology, from recorded closes and the data vendor’s weekly price history, as of , price, with income reinvested in the fund
How we work it out:Risk figuresFallsVolatilityLargest fall
Charges compared with similar funds
- Ongoing charge
- 0.21%
- a year
- On £10,000
- £21
- a year, roughly
- Over five years
- £105
- of £10,000, before growth
- 142 charge less
- 2 the same
- 66 charge more
Ongoing charge of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD 0.21% a year, as of 01/10/2026: 66 of the 210 other US share funds charge more, 2 the same and 142 less (share classes counted once).
Source: Fund ongoing charges via TradingView, as of
A lower charge is not a promise of a higher return: what the fund holds matters more. Charges are the fund’s own published ongoing charges figure.
Read more:Ongoing charge (OCF)OCF and TERFee dragHow charges add up
In plain English
iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD is an exchange-traded fund (ETF) from iShares, launched in 2016.
It tracks the MSCI USA Mid Cap Equal Weighted.
You buy and sell it through a share-dealing account or platform during stock-market hours, like a share.
Its ongoing charge is 0.21% a year — about £21 a year on every £10,000 invested, taken from the fund's value rather than billed to you.
Income from its investments is reinvested inside the fund, so it shows up as a rising price rather than cash paid to you.
US shares: American companies, including the S&P 500 and Nasdaq-100 — the largest stock market in the world.
Terms:ETFIndex fundUCITSAccumulating or incomeShare classISIN
Key facts
- Ticker
- IUSF
- ISIN
- IE00BD1F4K20
- Provider
- iShares
- Tracks
- MSCI USA Mid Cap Equal Weighted
- Structure
- ETF
- An exchange-traded fund: bought and sold on the stock exchange through the day, like a share.
- Income
- Accumulating
- Income is reinvested inside the fund, so it shows up as a rising price rather than cash paid to you.
- Ongoing charge
- 0.21% a year · about £21 on £10,000
- Fund size
- £164m
- Launched
- Domicile
- Ireland
- Can be held in
- ISA and SIPP
- Currency hedged
- No
- Price currency
- Pounds (GBP)
- Category
- US shares
Price chart
Since 31/07/2026, the closing price went from £9.97 on 31/07/2026 to £9.85 on 30/09/2026 (−1.2%). The lowest close shown was £9.85 on 30/09/2026 and the highest £10.38 on 13/08/2026.
Chart: closing prices we have recorded since 31/07/2026.
Source: TradingView, as of , at least 15 min delayed
Five years of prices, and after inflation
10 weekly closes, from 31/07/2026 to 30/09/2026. The same history in September 2026 pounds, adjusted with ONS CPIH inflation.
Create a free account to see the 5-year price chart and the after-inflation chart
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How we work it out:Prices and returnsNAV and price
Risk and return in depth
Sharpe, Sortino and Calmar ratios
Sharpe, Sortino and Calmar ratios over 1, 3 and 5 years, from weekly returns in pounds.
With a free accountRolling returns
The full range of 248 rolling 12-month returns since January 2021, and of 144 rolling three-year returns, in pounds, with how often they were above zero.
With a free accountLargest falls and recoveries
The 3 largest falls since October 2021, in pounds, with how many weeks each took to reach its low and to recover.
With a free account
Create a free account to see the risk ratios, every rolling return and each large fall and its recovery
Sign-up takes an email address. There is no card to enter and nothing to pay.
Rank among similar funds
Rank by total return over 1, 3 and 5 years among up to 170 US share funds, not currency-hedged, highest first.
ProMoves compared with a similar fund
Correlation and beta of weekly returns in pounds against iShares Core S&P 500 UCITS ETF, over the three years to 30/09/2026 (151 weeks).
Pro
Pro — currently by invitation
Pro includes the rank among similar funds and moves against a comparable fund
Pro is open by invitation while it is being built. There is nothing to buy. To ask about access, email [email protected].
Questions people ask
What is the ongoing charge of IUSF?
The ongoing charge of IUSF is 0.21% a year — about £21 a year on every £10,000 invested, taken from the fund’s value rather than billed to you. Platform and dealing fees are charged separately. Ongoing charge of iShares MSCI USA Mid-Cap Equal Weight UCITS ETF Accum Shs USD 0.21% a year, as of 01/10/2026: 66 of the 210 other US share funds charge more, 2 the same and 142 less (share classes counted once).
What does IUSF track?
IUSF tracks the MSCI USA Mid Cap Equal Weighted.
Is IUSF accumulating or distributing?
IUSF is accumulating: income is reinvested inside the fund, so it shows up as a rising price rather than cash paid to you.
What is the ISIN of IUSF?
The ISIN of IUSF is IE00BD1F4K20. An ISIN identifies one exact share class of a fund; IUSF is its ticker on the London Stock Exchange.
What were IUSF’s returns in each of the last five years?
Calendar-year returns of IUSF in pounds (price, with income reinvested in the fund): 2022 −8.6%, 2023 +10.8%, 2024 +14.9%, 2025 +0.5%; 2026 to 30/09/2026 +7.3%. Past performance is not a guide to future returns.
How has IUSF done after inflation?
Over the five years to 30/09/2026 IUSF’s total return was +34.5%, or +5.1% after UK CPIH inflation. Past performance is not a guide to future returns.
Similar funds
- CSP1iShares Core S&P 500 UCITS ETF0.07% a year · £88bn
- VUSAVanguard S&P 500 UCITS ETF0.07% a year · £30bn
- SPXPInvesco S&P 500 UCITS ETF0.05% a year · £24bn
- VUAGVanguard S&P 500 UCITS ETF0.07% a year · £21bn
- CNX1iShares NASDAQ 100 UCITS ETF USD0.33% a year · £17bn
- IUSAiShares Core S&P 500 UCITS ETF USD (Dist)0.07% a year · £13bn
- SPX5State Street SPDR S&P 500 UCITS ETF USD0.03% a year · £12bn
- SPXLState Street SPDR S&P 500 UCITS ETF0.03% a year · £11bn
Sources and dates
- Prices
- London Stock Exchange closes via TradingView, at least 15 minutes delayed, latest
- Returns
- TradingView reported returns (net asset value with income reinvested where available)
- Calendar years, risk
- Fundology, from recorded closes (weekly history from the data vendor where our record is short)
- Inflation
- ONS CPIH, latest month used August 2026
- Charges
- The fund’s ongoing charges figure, via TradingView
- Identity
- FCA Financial Instruments Reference Data System (FIRDS) and the issuer
- Fund size
- TradingView, converted to pounds at the latest ECB reference rate
Methodology:Data sourcesReturnsCategoriesAll methods
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