You're on the BlackRock site for advisors. Do you want to change your user type to advisor?
As disclosed in a public supplement which was filed on June 6, 2025, BlackRock has received board approval to reorganize the BlackRock Mortgage-Backed Securities Fund into the iShares Mortgage-Backed Securities Active ETF. The reorganization is anticipated to close as of the close of trading on the New York Stock Exchange on January 23, 2026. Please click here to view a supplement which discloses additional detail on the conversion.
As disclosed in a public supplement which was filed on June 6, 2025, BlackRock has received board approval to reorganize the BlackRock Mortgage-Backed Securities Fund into the iShares Mortgage-Backed Securities Active ETF. The reorganization is anticipated to close as of the close of trading on the New York Stock Exchange on January 23, 2026. Please click here to view a supplement which discloses additional detail on the conversion.

| 1y | 3y | 5y | 10y | |
|---|---|---|---|---|
| Total Return (%) | 3.41 | 4.69 | -0.43 | 0.98 |
| Return w/ Sales Charge (%) | -0.72 | 3.28 | -1.24 | 0.57 |
| Benchmark (%) | 3.39 | 5.05 | -0.14 | 1.41 |
| Morningstar Ranking | 33/222 | 43/212 | 86/203 | 105/169 |
| Morningstar Quartile | 1 | 1 | 2 | 3 |
| Lipper Category Avg. (%) | 3.10 | 4.44 | -0.14 | 1.01 |
| Lipper Ranking | 74/137 | 84/123 | 78/108 | 66/81 |
| Lipper Quartile | 3 | 3 | 3 | 4 |
| YTD | 1m | 3m | 1y | 3y | 5y | 10y | |
|---|---|---|---|---|---|---|---|
| Total Return (%) | 6.66 | 1.33 | 2.64 | 3.41 | 14.74 | -2.12 | 10.21 |
| Return w/ Sales Charge (%) | 2.40 | -2.72 | -1.47 | -0.72 | 10.15 | -6.03 | 5.80 |
| Benchmark (%) | 6.76 | 1.22 | 2.43 | 3.39 | 15.92 | -0.71 | 15.01 |
| Lipper Category Avg. (%) | 5.83 | 0.76 | 1.98 | 3.10 | 13.92 | -0.65 | 10.68 |
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Total Return (%) | 3.92 | -1.38 | -12.70 | 4.89 | 0.94 |
| Annual w/ Sales Charge (%) | -0.23 | -5.32 | -16.19 | 0.69 | -3.10 |
| Benchmark (%) | 3.68 | -1.45 | -10.76 | 5.40 | 1.20 |
| Morningstar Category Avg. (%) | 4.13 | -1.39 | -10.50 | 4.61 | 1.52 |
Performance is shown after deduction of ongoing charges. Any entry and exit charges are excluded from the calculation.
For the latest month-end Distribution Yield, click here.
This information must be preceded or accompanied by a current prospectus. For standardized performance, please see the Performance section above.
| Gross Expense Ratio | 0.90% |
| Net Expense Ratio | 0.68% |
Net Expense Ratio excluding Investment Related Expenses is 0.67%
| Name | Weight (%) |
|---|---|
| UNIFORM MBS | 39.15 |
| GOVERNMENT NATIONAL MORTGAGE ASSOCIATION II | 29.74 |
| FEDERAL HOME LOAN MORTGAGE CORPORATION | 12.76 |
| GOVERNMENT NATIONAL MORTGAGE ASSOCIATION I | 9.59 |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 9.47 |
| Name | Weight (%) |
|---|---|
| FNMA_24-30D-FC | 1.92 |
| GNMA_15-55-A | 1.57 |
| GNMA_15-79-MY | 1.35 |
| GNMA_20-149H-IA | 1.09 |
| GNMA_15-106-DY | 0.95 |
| Name | Market Value | Weight (%) | Shares | Maturity | Coupon (%) |
|---|
This fund does not seek to follow a sustainable, impact or ESG investment strategy. For more information regarding the fund's investment strategy, please see the fund's prospectus or, as applicable, shareholder report.