TER
0.28% p.a.
Distribution policy
Accumulating
Replication
Physical
Fund size
CHF 2,361 m
Inception Date
13 April 2017
Holdings
9,405
Overview
Description
The iShares US Mortgage Backed Securities UCITS ETF (Acc) seeks to track the Bloomberg US Mortgage Backed Securities index. The Bloomberg US Mortgage Backed Securities index tracks U.S. mortgage-backed securities issued by government sponsored enterprises.
Documents
Chart
Basics
Data
| Index | Bloomberg US Mortgage Backed Securities |
| Investment focus | Bonds, USD, United States, Covered Bonds, All maturities |
| Fund size | CHF 2,361 m |
| Total expense ratio | 0.28% p.a. |
| Replication | Physical (Sampling) |
| Legal structure | ETF |
| Investment approach | Long-only |
| Sustainability | No |
| Fund currency | USD |
| Currency risk | Currency unhedged |
| Volatility 1 year (in CHF) | 8.56% |
| Inception/ Listing Date | 13 April 2017 |
| Distribution policy | Accumulating |
| Distribution frequency | - |
| Fund domicile | Ireland |
| Fund Provider | iShares |
| Fund Structure | Open-ended Investment Company (OEIC) |
| UCITS compliance | Yes |
| Administrator | State Street Fund Services (Ireland) Limited |
| Investment Advisor | |
| Custodian Bank | State Street Custodial Services (Ireland) Limited |
| Revision Company | Deloitte |
| Fiscal Year End | 31 May |
| Swiss representative | BlackRock Asset Management Schweiz AG |
| Swiss paying agent | State Street Bank International GmbH, Munich, Zurich Branch |
| Germany | No tax rebate |
| Switzerland | ESTV Reporting |
| Austria | Tax Reporting Fund |
| UK | UK Reporting |
| Italy | 26.0% |
| Indextype | Total return index |
| Swap counterparty | - |
| Collateral manager | Bank of New York Mellon|Euroclear|JP Morgan|State Street Bank |
| Securities lending | No |
| Securities lending counterparty |
Similar ETFs
This section provides you with information on other ETFs with a similar investment focus to the iShares US Mortgage Backed Securities UCITS ETF (Acc).
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Holdings
Below you find information about the composition of the iShares US Mortgage Backed Securities UCITS ETF (Acc).
Top 10 Holdings
Weight of top 10 holdings
out of 9,405
14.50%
| BlackRock Cash Funds - Institutional | 7.60% |
| US01F0526982 | 1.26% |
| US21H0526945 | 1.05% |
| FR SD8146, 2% 1may2051, USD (ABS) | 0.98% |
| US01F0506927 | 0.87% |
| US21H0606978 | 0.63% |
| G2 MB0025, 5% 20nov2054, USD (ABS) | 0.55% |
| US21H0506988 | 0.55% |
| G2 MA7648, 2% 20oct2051, USD (ABS) | 0.51% |
| US36179WTX64 | 0.50% |
Countries
| United States | 28.44% |
| Other | 71.56% |
Sectors
| Industrials | 20.60% |
| Non-Corporate | 7.60% |
| Finance | 0.19% |
| Government Agencies | 0.04% |
| Other | 78.60% |
As of 31/08/2026
ETF Savings plan offers
Here you can find information about the savings plan availability of the ETF. You can use the table to compare all savings plan offers for the selected savings rate.
Detailed comparison of all offers
Source: justETF Research; as of 10/2026. The offers are sorted in the following way: 1. Rating 2. Execution fee 3. Number of ETF savings plans. In addition to the fees charged by online brokers, additional costs may apply. The stated fees are thus exclusive of standard market spreads, commissions, product costs and third-party fees. Please note: No guarantee can be given for the completeness, correctness and accuracy of the content listed. The information on the online brokers' homepages is decisive. Investments in securities involve risks.
*Affiliate link
** Important note: We are part of the Scalable Group since 2021 and are a wholly owned subsidiary of Scalable AG. This means that we are economically connected, but operate with editorial independence. Conflicts of interest are avoided because brokers — including Scalable — are evaluated according to uniform, objective criteria. You can view these in our transparent rating system. Ultimately, it’s up to you to decide how and with whom you want to invest.
*Affiliate link
** Important note: We are part of the Scalable Group since 2021 and are a wholly owned subsidiary of Scalable AG. This means that we are economically connected, but operate with editorial independence. Conflicts of interest are avoided because brokers — including Scalable — are evaluated according to uniform, objective criteria. You can view these in our transparent rating system. Ultimately, it’s up to you to decide how and with whom you want to invest.
Performance
Returns overview
| YTD | +1.59% |
| 1 month | +0.45% |
| 3 months | -0.44% |
| 6 months | +0.90% |
| 1 year | +2.05% |
| 3 years | +4.43% |
| 5 years | -12.67% |
| Since inception (MAX) | -10.93% |
| 2025 | -5.16% |
| 2024 | +9.15% |
| 2023 | -4.91% |
| 2022 | -10.93% |
Monthly returns in a heat map
Risk
Risk metrics in this section:
- Volatility, annualised, measured for 1, 3 and 5 year periods. The annualised volatility reflects the degree of price fluctuations during a one year period. The higher the volatility, the more significantly the price of the asset (stock, ETF, etc.) has changed in the past. Assets with higher volatility are generally considered more risky. We calculate the volatility based on the data for the past 1, 3 and 5 years so that you can see if price fluctuations for the ETF became stronger or weaker over time.
- Return per risk for 1, 3 and 5 year periods. This is the annualised (i.e. converted to a one year period) past return divided by the past annualised volatility. The metric puts the historical return of an asset in relation to its historical risk and gives you a retrospective indication of the degree of price fluctuation you had to bear with in order to obtain the return. We calculate this parameter for 1, 3 and 5 year periods to display its evolution over time.
- Maximum drawdown for a period. This shows the worst possible loss an investor could have suffered during the respective period, by first buying and subsequently selling the asset at the least favourable prices. For example, if there was the following sequence of daily ETF prices: 10€, 5€, 12€, 20€, an investor would have suffered the worst loss by buying for 10€ and subsequently selling for 5€. Therefore in this case the maximum drawdown would be (5€ - 10€)/10€ = -50%.
Risk overview
| Volatility 1 year | 8.56% |
| Volatility 3 years | 9.17% |
| Volatility 5 years | 10.08% |
| Return per risk 1 year | 0.24 |
| Return per risk 3 years | 0.16 |
| Return per risk 5 years | -0.27 |
| Maximum drawdown 1 year | -4.68% |
| Maximum drawdown 3 years | -11.74% |
| Maximum drawdown 5 years | -20.19% |
| Maximum drawdown since inception | -24.86% |
Rolling 1 year volatility
Stock exchange
Listings
| Listing | Trade Currency | Ticker | Bloomberg / iNAV Bloomberg Code | Reuters RIC / iNAV Reuters | Market Maker |
|---|---|---|---|---|---|
| Bolsa Mexicana de Valores | MXN | - | IMBAN MM | IMBAN.MX | |
| London Stock Exchange | USD | IMBA | IMBA LN INANMBSU | IMBA.L 3XL6INAV.DE | |
| SIX Swiss Exchange | CHF | IMBA | IMBA SE | IMBA.S |
Further information
Further ETFs on the Bloomberg US Mortgage Backed Securities index
| Fund name | Fund Size in m € (AuM) | TER p.a. | Distribution | Replication |
|---|---|---|---|---|
| iShares US Mortgage Backed Securities UCITS ETF | 674 | 0.28% p.a. | Distributing | Sampling |
Latest articles
Frequently asked questions
What is the name of IMBA?
The name of IMBA is iShares US Mortgage Backed Securities UCITS ETF (Acc).
What is the ticker of iShares US Mortgage Backed Securities UCITS ETF (Acc)?
The primary ticker of iShares US Mortgage Backed Securities UCITS ETF (Acc) is IMBA.
What is the ISIN of iShares US Mortgage Backed Securities UCITS ETF (Acc)?
The ISIN of iShares US Mortgage Backed Securities UCITS ETF (Acc) is IE00BYXYYN70.
What are the costs of iShares US Mortgage Backed Securities UCITS ETF (Acc)?
The total expense ratio (TER) of iShares US Mortgage Backed Securities UCITS ETF (Acc) amounts to 0.28% p.a.. These costs are withdrawn continuously from the fund assets and already included in the performance of the ETF. You don't have to pay them separately. Please have a look at our article for more information about the cost of ETFs.
What's the fund size of iShares US Mortgage Backed Securities UCITS ETF (Acc)?
The fund size of iShares US Mortgage Backed Securities UCITS ETF (Acc) is 2,361m CHF. See the following article for more information about the size of ETFs.
— Data provided by Trackinsight, etfinfo, Xignite Inc., gettex, FactSet and justETF GmbH. Quotes are either real-time (gettex) or 15 minutes delayed stock exchange quotes or NAVs (daily published by the fund provider). By default, ETF returns include dividend payments (if applicable).
There is no warranty for completeness, accuracy and correctness for the displayed information. (en-CH)