# iShares U.S. Securitized Bond Index Fund

iShares U.S. Securitized Bond Index Fund is a registered fund series of BlackRock Funds (series S000075207). Net assets $5.6B as of 2026-04-30. Index fund.

## Profile

- Series ID: S000075207
- Registrant: BlackRock Funds
- LEI: 549300IX2EU4EA7H6U85
- Net assets: $5.6B
- Total assets: $6.0B
- As of: 2026-04-30
- Type: Index

## Advisers

- [BlackRock Fund Advisors (Advisor)](https://search.stillhousedata.com/firm/105247)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [BLACKROCK CASH FUNDS](https://search.stillhousedata.com/security/066922477) | — | $460.9M | 821.64% |
| [Fannie Mae](https://search.stillhousedata.com/security/31418D4X7) | — | $61.0M | 108.66% |
| [Fannie Mae](https://search.stillhousedata.com/security/31418EAN0) | — | $49.5M | 88.32% |
| [Fannie Mae](https://search.stillhousedata.com/security/31418D6B3) | — | $47.9M | 85.34% |
| [Freddie Mac](https://search.stillhousedata.com/security/3132DWBP7) | — | $46.0M | 81.92% |
| [Government National Mortgage Association](https://search.stillhousedata.com/security/36179WFG8) | — | $36.4M | 64.88% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F020455) | — | $35.3M | 62.97% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F032658) | — | $32.1M | 57.15% |
| [Government National Mortgage Association](https://search.stillhousedata.com/security/36179WVT2) | — | $29.8M | 53.14% |
| [Government National Mortgage Association](https://search.stillhousedata.com/security/21H050656) | — | $28.3M | 50.49% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F042657) | — | $27.9M | 49.81% |
| [Government National Mortgage Association](https://search.stillhousedata.com/security/36179YFL3) | — | $27.5M | 48.95% |
| [Fannie Mae](https://search.stillhousedata.com/security/31418EB82) | — | $27.3M | 48.70% |
| [Freddie Mac](https://search.stillhousedata.com/security/3132DWDC4) | — | $26.9M | 48.01% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F040651) | — | $26.3M | 46.96% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $5.6B |
| 2026-01-31 | $5.8B |
| 2025-10-31 | $5.8B |
| 2025-07-31 | $5.4B |
| 2025-04-30 | $5.4B |
| 2025-01-31 | $5.3B |
| 2024-10-31 | $4.9B |
| 2024-07-31 | $4.9B |

## More

- [Registrant: BlackRock Funds](https://search.stillhousedata.com/registrant/844779)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000075207.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.