# Fidelity Long-Term Treasury Bond Index Fund

Fidelity Long-Term Treasury Bond Index Fund is a registered fund series of Fidelity Salem Street Trust (series S000017678). Net assets $4.9B as of 2026-05-31. Index fund.

## Profile

- Series ID: S000017678
- Registrant: Fidelity Salem Street Trust
- LEI: 5493002DT8W3SXZ87807
- Net assets: $4.9B
- Total assets: $4.9B
- 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 (93 reported)

_Showing 15 of 93 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UP1) | — | $156.8M | 318.59% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UA4) | — | $126.8M | 257.64% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TV0) | — | $124.3M | 252.53% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UC0) | — | $113.4M | 230.44% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TB4) | — | $102.8M | 208.89% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TT5) | — | $101.6M | 206.48% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UG1) | — | $101.6M | 206.48% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810SW9) | — | $97.8M | 198.60% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UE6) | — | $96.1M | 195.27% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UK2) | — | $93.7M | 190.37% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UM8) | — | $93.6M | 190.15% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TX6) | — | $92.4M | 187.83% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810SU3) | — | $91.3M | 185.42% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TG3) | — | $87.9M | 178.53% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810SP4) | — | $87.6M | 178.04% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $4.9B |
| 2026-02-28 | $5.3B |
| 2025-11-30 | $5.0B |
| 2025-08-31 | $5.0B |
| 2025-05-31 | $4.8B |
| 2025-02-28 | $4.8B |
| 2024-11-30 | $4.7B |
| 2024-08-31 | $4.5B |

## More

- [Registrant: Fidelity Salem Street Trust](https://search.stillhousedata.com/registrant/35315)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000017678.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.