Key stats
About iShares Mortgage-Backed Securities Active ETF
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Inception date
Jan 23, 2026
Structure
Open-Ended Fund
Replication method
Synthetic
Dividend treatment
Distributes
Distribution tax treatment
Ordinary income
Income tax type
Capital Gains
Max ST capital gains rate
39.60%
Max LT capital gains rate
20.00%
Primary advisor
BlackRock Fund Advisors
Distributor
BlackRock Investments LLC
Identifiers
3
ISIN US0925287932
MBBA is an actively managed ETF that aims to maximize total return, consistent with income generation and prudent management. The fund invests primarily in mortgage-backed securities (MBS) and derivatives offering similar exposure or related market risks. Holdings may include Government National Mortgage Association (GNMA), Fannie Mae, Freddie Mac, other US government securities, and participation in to be announced (TBA) MBS transactions. The fund targets an average portfolio duration close (plus or minus one year) to its benchmark, the Bloomberg U.S. MBS Index. It may invest in residential/commercial MBS and other asset-backed securities, use options, futures, swaps, and interest rate transactions for exposure, risk mitigation, or return enhancement. As an actively managed ETF, the fund manager has full discretion to adjust the portfolio at any time.
Classification
Returns
| 1 month | 3 months | Year to date | 1 year | 3 years | 5 years | |
|---|---|---|---|---|---|---|
| Price performance | — | — | — | — | — | — |
| NAV total return | — | — | — | — | — | — |
What's in the fund
Exposure type
Securitized
Bonds, Cash & Other100.00%
Securitized131.65%
Government4.60%
Mutual fund2.57%
Futures−0.01%
Miscellaneous−0.02%
Cash−38.80%
Stock breakdown by region
North America100.00%
Latin America0.00%
Europe0.00%
Asia0.00%
Africa0.00%
Middle East0.00%
Oceania0.00%
Top 10 holdings
Dividends
Dividend payout history
Assets under management (AUM)
Fund Flows
Frequently Asked Questions
MBBA invests in bonds. The fund's major sectors are Securitized, with 131.65% stocks, and Government, with 4.60% of the basket. The assets are mostly located in the N/A region.
MBBA assets under management is 129.72 M USD. It's risen 0.17% over the last month.
MBBA fund flows account for 0.00 USD (1 year). Many traders use this metric to get insight into investors' sentiment and evaluate whether it's time to buy or sell the fund.
No, MBBA doesn't pay dividends to its holders.
MBBA shares are issued by BlackRock, Inc. under the brand iShares. The ETF was launched on Jan 23, 2026, and its management style is Active.
MBBA expense ratio is 0.25% meaning you'd have to pay 0.25% of your investment to help manage the fund.
MBBA follows the No Underlying Index. ETFs usually track some benchmark seeking to replicate its performance and guide asset selection and objectives.
MBBA invests in bonds.
MBBA trades at a premium (0.12%) meaning the ETF is trading at a higher price than the calculated NAV.