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Logo iSharesiShares · sheet of 10 September 2026
ETF sheet · official issuer and register data

iShares US Mortgage Backed Securities UCITS ETF

IMBA · IE00BYXYYN70 · USD · domicile Ireland
Bonds · Covered & MBS · North AmericaSFDR art. 6
Index tracked: Bloomberg U.S. MBS Index
TER
0.28%+ trans. 0.01%
Fund size
2.4 bn EUR
Tracking difference
−0.26%3-year avg
🇮🇹 tax rate
25.96%white list 0.27%
Replication
Physical (optimised)
Income
Accumulating
Duration
5.60 yrsmedium (3–7 years)
Launch 13 Apr 2017 · costs from the KID as of 2 Sept 2026 · 600 securities held · 5 venues (ESMA register)

The fund’s objective — in the issuer’s words

From the Key Information Document (KID) · 4 Aug 2026
The Share Class is a share class of a Fund which aims to achieve a return on your investment, through a combination of capital growth and income on the Fund’s assets, which reflects the return of the Bloomberg US Mortgage Backed Securities Index, the Fund’s benchmark index (Index). The Share Class, via the Fund is passively managed and aims to invest so far as possible and practicable in fixed income (FI) securities (such as bonds) that make up the Index and comply with its credit rating requirements. If the credit ratings of the FI securities are…

Performance since series start (in euro) — base 100

13 Apr 201731 Aug 2026 · dividends reinvested where declared by the issuer · converted at ECB rates
2018202020222024202611084101
High 110 (6 May 2020) · low 84 (16 Feb 2018) · last 101. Past performance is not indicative of future results.

Returns in euro

1 year+3.3%
3 years+6.3%
5 years+1.0%
10 yearsseries too young
Since series start+1.4%

Risk · 1 / 3 / 5 years

Volatility (ann.)4.37%5.97%6.71%
Max drawdown−3.00%−5.42%−17.56%
Sharpe-0.230.25-0.35
Sortino-0.310.36-0.49
Sharpe/Sortino: risk-free = ECB MRO avg; nominal volatility
Rebalix · IMBA · IE00BYXYYN701
RebalixIMBA · IE00BYXYYN70 · sheet of 10 September 2026

Tracking difference — year by year

Fund minus index, complete calendar years · from issuer-declared series
YearFundIndexTD
2025+8.34%+8.58%−0.24%
2024+0.97%+1.20%−0.23%
2023+4.75%+5.04%−0.30%
2022−12.11%−11.81%−0.31%
2021−1.62%−1.05%−0.57%

Fixed income — as declared by the issuer

Issuer page · 20 Aug 2026 · investment-grade share (BBB−/Baa3 and above): 98.4%
Rating breakdown (% of fund)
AA98.4%Cash and derivatives1.6%
Maturity breakdown (% of fund)
0–1 years0.0%1–2 years0.1%2–3 years0.3%3–5 years13.2%5–7 years18.9%7–10 years65.7%10–15 years0.1%Cash and derivatives1.6%

Holdings

Portfolio as declared by the issuer · 31 Aug 2026 · 600 securities · top-10 weight = 28.7%
Countries (% of fund)
United States90.8%Ireland8.9%European Union0.1%
Sectors (% of fund)
MBS Pass-Through99.8%Cash and/or Derivatives0.1%

Listing venues

ESMA register (FIRDS) and official exchange lists
IS08 · Börse Düsseldorf, Börse Hamburg, Börse Hannover, Börse München / gettex, Tradegate Exchange
+ 7 unmapped venues (MTF, RFQ, professional)

Official documents

Clickable links in the PDF
KID · www.blackrock.com/it/investitori-privati/literature/kiid/eu-priips-ish
Factsheet · www.ishares.com/gls-download/literature/fact-sheet/imba-ishares-us-mor
Prospectus · www.blackrock.com/it/investitori-privati/literature/prospectus/ishares
The live sheet, always up to date
rebalix.com/en/etf/IE00BYXYYN70
Series, distributions, holdings and documents refresh daily.
Sheet produced on 10 September 2026 · data as of the dates shown section by section. Sources: official issuer documents (KID, factsheet, NAV and total-return series, declared portfolio), ESMA register (FIRDS), European Central Bank (FX), Italian tax authority / issuer (white-list share). Public methodology: rebalix.com/en/methodology. “—” = not published by the source, never estimated.

Informational document generated by rebalix.com: facts only, no recommendations. Not investment advice or investment research under Directive 2014/65/EU (MiFID II), nor an offer or solicitation. Past performance is not indicative of, nor a guarantee of, future results; the value of an investment can go down as well as up. Before any decision read the issuer’s KID and Prospectus; tax treatment depends on individual circumstances. Trademarks and logos belong to their respective owners and only identify the instrument and its issuer: no affiliation, sponsorship or endorsement.

Rebalix · IMBA · IE00BYXYYN702