iShares U.S. Securitized Bond Index Fund
Data updated: 2026-06-25
C000234051 — iShares U.S. Securitized Bond Index Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Securitized (MBS/ABS/CMBS) Bond · $5.61B AUM · 0.01% expense ratio · 5.6% 1-yr return. From SEC regulatory filings.
C000234051 Fund Overview
iShares U.S. Securitized Bond Index Fund is a US mutual fund managed by Blackrock Funds, categorised as Long Securitized (MBS/ABS/CMBS) Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Blackrock Funds
- Category: Long Securitized (MBS/ABS/CMBS) Bond
- Assets under management: $5.61B
- 1-year return: 5.6%
- SEC CIK: 0000844779
- SEC series ID: S000075207
- Share class ID: C000234051
C000234051 Holdings
Top 10 holdings of iShares U.S. Securitized Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Blackrock Cash Funds | 8.22% |
| Fannie Mae | 1.09% |
| Fannie Mae | 0.88% |
| Fannie Mae | 0.85% |
| Freddie Mac | 0.82% |
| Government National Mortgage Association | 0.65% |
| Umbs, Tba | 0.63% |
| Umbs, Tba | 0.57% |
| Government National Mortgage Association | 0.53% |
| Government National Mortgage Association | 0.50% |
C000234051 Portfolio Allocation
Asset-class allocation of iShares U.S. Securitized Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 98.2% |
| Cash & Equivalents | 8.2% |
| Fixed Income | 0.2% |
C000234051 Performance
Total returns for C000234051 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.5% |
| 1 year | 5.6% |
| 3 years (annualised) | 4.1% |
C000234051 Risk Information
Risk metrics for C000234051, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.6%
C000234051 Costs and Fees
C000234051 costs about $1 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.01%
- Gross expense ratio: 0.13%
- Portfolio turnover: 243%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000234051 Cashflows
Over the 12 months to 2026-04, iShares U.S. Securitized Bond Index Fund had net inflows of $166.88M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$132.39M |
| 2026-03 | −$70.77M |
| 2026-02 | $33.61M |
| 2026-01 | −$30.32M |
| 2025-12 | $53.65M |
| 2025-11 | $20.67M |
C000234051 Debt Constituents
Largest debt holdings of iShares U.S. Securitized Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Virginia Power Fuel Sec | 0.04% |
| Pg&e Recovery Fnd LLC | 0.04% |
| Pg&e Recovery Fnd LLC | 0.02% |
| Pg&e Wildfire Recovery | 0.02% |
| Pg&e Wildfire Recovery | 0.02% |
| Sce Recovery Funding LLC | 0.02% |
| Nyseg Storm Funding LLC | 0.01% |
| Sce Recovery Funding LLC | 0.01% |
| Duke Energy Nc St Fdg Ii | 0.01% |
| Pg&e Wildfire Recovery | 0.01% |
C000234051 Prospectus and SEC Filings
Official iShares U.S. Securitized Bond Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Securitized (MBS/ABS/CMBS) Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.