# Fidelity U.S. Bond Index Fund

Fidelity U.S. Bond Index Fund is a registered fund series of Fidelity Salem Street Trust (series S000017676). Net assets $69.0B as of 2026-05-31. Index fund.

## Profile

- Series ID: S000017676
- Registrant: Fidelity Salem Street Trust
- LEI: 5VUJ0DJSDOFYE2WQN531
- Net assets: $69.0B
- Total assets: $70.9B
- As of: 2026-05-31
- Type: Index

## Advisers

- [FMR Investment Management (UK) Limited (Subadvisor)](https://search.stillhousedata.com/firm/108273)
- [Fidelity Management & Research Company LLC (Advisor)](https://search.stillhousedata.com/firm/108281)
- [Fidelity Management & Research (Hong Kong) Limited (Subadvisor)](https://search.stillhousedata.com/firm/148045)
- [Fidelity Management & Research (Japan) Limited (Subadvisor)](https://search.stillhousedata.com/firm/148239)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [UST NOTES](https://search.stillhousedata.com/security/912828Z94) | — | $645.3M | 93.46% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CFF3) | — | $595.7M | 86.28% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CFC0) | — | $577.5M | 83.65% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CPZ8) | — | $536.4M | 77.69% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CPC9) | — | $506.5M | 73.36% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CPT2) | — | $501.4M | 72.61% |
| [FED HOME LOAN MTG CORP - GOLD](https://search.stillhousedata.com/security/3132DWAW3) | — | $435.1M | 63.01% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CHT1) | — | $432.8M | 62.68% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CNM9) | — | $410.2M | 59.41% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CEW7) | — | $403.7M | 58.47% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CJJ1) | — | $400.6M | 58.02% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CFU0) | — | $397.0M | 57.50% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TX6) | — | $360.3M | 52.18% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CNU1) | — | $341.6M | 49.47% |
| [UST NOTES](https://search.stillhousedata.com/security/91282CMS7) | — | $334.8M | 48.49% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $69.0B |
| 2026-02-28 | $70.4B |
| 2025-11-30 | $68.0B |
| 2025-08-31 | $65.9B |
| 2025-05-31 | $62.6B |
| 2025-02-28 | $62.2B |
| 2024-11-30 | $61.0B |
| 2024-08-31 | $58.5B |

## More

- [Registrant: Fidelity Salem Street Trust](https://search.stillhousedata.com/registrant/35315)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000017676.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.