# iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B (CU31) **Page:** https://fundology.uk/fund/cu31 · ISIN IE00B3VWN179 ## At a glance > Capital at risk. Past performance is not a guide to future returns. The value of investments can fall as well as rise. As of 13/11/2026, CU31 (iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B, ISIN IE00B3VWN179) closed at £95.41 on the London Stock Exchange. Its ongoing charge is 0.07% a year (about £7 on £10,000). Over the five years to 13/11/2026 its total return was +12.4%, or −12.3% after UK CPIH inflation. ## Summary iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B is an exchange-traded fund (ETF) from iShares, launched in 2009. It tracks the ICE BofA US Treasury Bond (1-3 Y). You buy and sell it through a share-dealing account or platform during stock-market hours, like a share. Its ongoing charge is 0.07% a year — about £7 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. Latest close: **£95.41** (13/11/2026). ## Key facts | Fact | Value | |---|---| | Ticker (LSE) | CU31 | | ISIN | IE00B3VWN179 | | Also listed as | CBU3 (London Stock Exchange, US dollars) | | Category | Government bonds | | Type | ETF | | Provider | iShares | | Tracks | ICE BofA US Treasury Bond (1-3 Y) | | Income | Accumulating | | Ongoing charge | 0.07% a year (£7 per £10,000) | | Fund size | £519m | | Launched | 2009 | | Domicile | Ireland | | UK reporting fund status | Yes — on HMRC’s list of reporting funds (list of 02/11/2026); reporting fund since 22/03/2010 | ## Past returns (periods to 13/11/2026) After the fund's ongoing charges. "Income reinvested" is total return; "price only" leaves out income paid out. Real returns are after UK CPIH inflation. | Window | Return | After CPIH inflation | Measured as | |---|---|---|---| | 1 year | +0.69% | -2.88% | income reinvested | | 3 years | +3.50% | -6.49% | income reinvested | | 5 years | +12.40% | -12.26% | income reinvested | Returns: as reported (delayed data). Inflation: UK CPIH, latest month published. ## Calendar-year returns Calendar-year returns of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B in pounds (price, with income reinvested in the fund): 2022 +7.7%, 2023 −1.6%, 2024 +6.9%, 2025 −3.3%; 2026 to 13/11/2026 +3.2%. Returns of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B in pounds (price, with income reinvested in the fund) over the 12 months to 30/09/2026: +3.0%; to 30/09/2025: +3.3%; to 30/09/2024: −2.7%; to 30/09/2023: −6.6%; to 30/09/2022: +15.5%. | Year | Return | After CPIH inflation | Measured as | |---|---|---|---| | 2022 | +7.7% | -1.4% | Price | | 2023 | -1.6% | -5.5% | Price | | 2024 | +6.9% | +3.2% | Price | | 2025 | -3.3% | -6.6% | Price | | 2026 to 13/11/2026 | +3.2% | -0.1% | Price | ## Risk metrics | Window | Volatility | Max drawdown | |---|---|---| | 1 year | 5.21% | -3.97% | | 3 years | 6.06% | -8.80% | | 5 years | 7.17% | -14.84% | ## Largest fall Volatility of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B in pounds, annualised from weekly returns to 13/11/2026: 5.2% over 1 year, 6.1% over 3 years, 7.2% over 5 years. Largest fall in the price of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B since November 2021, in pounds: −14.8% from 23/09/2022 to 14/07/2023. The lowest 12-month return of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B in pounds (price, with income reinvested in the fund) since January 2021 was −8.9% (12 months to 14/07/2023); the highest was +18.7% (12 months to 23/09/2022). On 13/11/2026 the price of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B was 4.0% below its highest weekly close since November 2021 (23/09/2022), in pounds. ## Charges compared with similar funds Ongoing charge of iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B 0.07% a year. Compared on 14/11/2026, 241 of the 311 other government bond funds charge more, 30 the same and 40 less (share classes counted once). ## Funds tracking the same index 4 funds track ICE BofA US Treasury Bond (1-3 Y), this one included and share classes counted once; their ongoing charges range from 0.07% to 0.10% a year (13/11/2026). | Fund | Ongoing charge | 1 year | 3 years | 5 years | |---|---|---|---|---| | iShares USD Treasury Bond 1-3yr UCITS ETF | 0.10% | +1.9% | +12.4% | +8.7% | | iShares USD Treasury Bond 1-3yr UCITS ETF AccumHedged GBP | 0.10% | +1.9% | — | — | | iShares USD Treasury Bond 1-3yr UCITS ETF EUR Hedged Acc | 0.10% | -5.0% | +2.6% | -1.6% | | iShares VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B (this fund) | 0.07% | +0.7% | +3.5% | +12.4% | Returns are as reported, in pounds, income reinvested unless marked "(price)". ## Charges & eligibility - Ongoing charges figure (OCF): **0.07%** per year (as of 13/11/2026) - Stocks and shares ISA eligible: usually (check with your platform) - SIPP eligible: usually (check with your provider) - ISA and SIPP mean the kind of product usually qualifies under HMRC rules. We do not check each platform’s list — each provider decides which funds it offers. Crypto ETNs have not qualified for a stocks and shares ISA since 06/04/2026, and overseas funds that are not UK-recognised UCITS, such as Swiss ETFs, do not usually qualify. ## What it holds As of 06/11/2026, CU31 holds 90 positions, according to its published holdings. The largest is Treasury Note 4.13% 30/06/2028 at 2.81% of the fund; the ten largest make up 16.8%. ### Top holdings Largest positions (as of 06/11/2026), as a percentage of the whole fund: | # | Holding | Ticker | Weight | |---|---|---|---| | 1 | Treasury Note 4.13% 30/06/2028 | — | 2.81% | | 2 | Treasury Note 3.50% 31/01/2028 | — | 2.23% | | 3 | Treasury Note 4.00% 31/10/2029 | — | 1.74% | | 4 | Treasury Note 3.88% 30/09/2029 | — | 1.68% | | 5 | Treasury Note (2OLD) 4.13% 31/08/2028 | — | 1.43% | | 6 | Treasury Note (Otr) 4.63% 31/10/2028 | — | 1.42% | | 7 | Treasury Note 3.63% 31/08/2029 | — | 1.41% | | 8 | Treasury Note 4.00% 31/05/2028 | — | 1.38% | | 9 | Treasury Note 4.00% 31/07/2029 | — | 1.38% | | 10 | Treasury Note 3.88% 31/03/2028 | — | 1.36% | All 92 holdings: https://fundology.uk/fund/cu31/holdings ## Questions people ask **What is the ongoing charge of CU31?** The ongoing charge of CU31 is 0.07% a year — about £7 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 VII plc-iShares USD Treasury Bond 1-3yr UCITS ETF USD (Acc) B 0.07% a year. Compared on 14/11/2026, 241 of the 311 other government bond funds charge more, 30 the same and 40 less (share classes counted once). **What does CU31 track?** CU31 tracks the ICE BofA US Treasury Bond (1-3 Y). **Is CU31 accumulating or distributing?** CU31 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 CU31?** The ISIN of CU31 is IE00B3VWN179. An ISIN identifies one exact share class of a fund; CU31 is its ticker on the London Stock Exchange. The same share class is also listed as CBU3 (London Stock Exchange, US dollars). **What does CU31 hold?** As of 06/11/2026, CU31 holds 90 positions, according to its published holdings. The largest is Treasury Note 4.13% 30/06/2028 at 2.81% of the fund; the ten largest make up 16.8%. Its ten largest holdings are Treasury Note 4.13% 30/06/2028 (2.81%), Treasury Note 3.50% 31/01/2028 (2.23%), Treasury Note 4.00% 31/10/2029 (1.74%), Treasury Note 3.88% 30/09/2029 (1.68%), Treasury Note (2OLD) 4.13% 31/08/2028 (1.43%), Treasury Note (Otr) 4.63% 31/10/2028 (1.42%), Treasury Note 3.63% 31/08/2029 (1.41%), Treasury Note 4.00% 31/05/2028 (1.38%), Treasury Note 4.00% 31/07/2029 (1.38%) and Treasury Note 3.88% 31/03/2028 (1.36%). **What were CU31’s returns in each of the last five years?** Calendar-year returns of CU31 in pounds (price, with income reinvested in the fund): 2022 +7.7%, 2023 −1.6%, 2024 +6.9%, 2025 −3.3%; 2026 to 13/11/2026 +3.2%. Past performance is not a guide to future returns. **How has CU31 done after inflation?** Over the five years to 13/11/2026 CU31’s total return was +12.4%, or −12.3% after UK CPIH inflation. Past performance is not a guide to future returns. ## Fund documents - [Fund page at iShares](https://www.ishares.com/uk/individual/en/products/253499/ishares-usd-government-bond-13-ucits-etf-acc-fund) - [Key investor information document (KIID)](https://www.ishares.com/gls-download/literature/kiid/ucits_kiid-ishares-treasury-bond-1-3yr-ucits-etf-usd-acc-b-gb-ie00b3vwn179-en.pdf) - [Factsheet](https://www.ishares.com/gls-download/literature/fact-sheet/csbgu3-ishares-treasury-bond-1-3yr-ucits-etf-usd-acc-b-fund-fact-sheet-en-gb.pdf) - Links checked 12/10/2026. --- We show information. We are not financial advisers, not authorised by the FCA, and never recommend specific investments. Capital at risk. Past performance is not a guide to future returns. The value of investments can fall as well as rise.