# Fidelity SAI Long-Term Treasury Bond Index Fund

Fidelity SAI Long-Term Treasury Bond Index Fund is a registered fund series of Fidelity Salem Street Trust (series S000051138). Net assets $13.0B as of 2026-05-31. Index fund.

## Profile

- Series ID: S000051138
- Registrant: Fidelity Salem Street Trust
- LEI: 549300NTJBCFOU104335
- Net assets: $13.0B
- Total assets: $13.1B
- 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 (45 reported)

_Showing 15 of 45 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UM8) | — | $669.7M | 514.67% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UP1) | — | $580.0M | 445.79% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TV0) | — | $544.7M | 418.66% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UG1) | — | $522.8M | 401.80% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UK2) | — | $520.1M | 399.75% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UC0) | — | $503.6M | 387.06% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TT5) | — | $497.6M | 382.41% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UA4) | — | $463.9M | 356.51% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TX6) | — | $438.7M | 337.15% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810SX7) | — | $419.6M | 322.51% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UR7) | — | $418.4M | 321.54% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TB4) | — | $404.3M | 310.72% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810UE6) | — | $402.9M | 309.66% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TR9) | — | $377.5M | 290.11% |
| [UNITED STATES TREASURY BOND](https://search.stillhousedata.com/security/912810TN8) | — | $375.4M | 288.55% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $13.0B |
| 2026-02-28 | $9.8B |
| 2025-11-30 | $5.9B |
| 2025-08-31 | $4.2B |
| 2025-05-31 | $3.5B |
| 2025-02-28 | $3.0B |
| 2024-11-30 | $3.1B |
| 2024-08-31 | $3.3B |

## More

- [Registrant: Fidelity Salem Street Trust](https://search.stillhousedata.com/registrant/35315)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000051138.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.