FSPWX — Fidelity SAI Inflation-Protected Bond Index Fund
Data updated: 2026-08-24
FSPWX — Fidelity SAI Inflation-Protected Bond Index Fund. Intermediate Treasury / Sovereign Bond · $17.84B AUM. Holdings, fees, performance and SEC filings.
FSPWX Fund Overview
FSPWX — Fidelity SAI Inflation-Protected Bond Index Fund is a US mutual fund managed by Fidelity Salem Street Trust, categorised as Intermediate Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Fidelity Salem Street Trust
- Category: Intermediate Treasury / Sovereign Bond
- Assets under management: $17.84B
- 1-year return: 3.3%
- Ticker: FSPWX
- SEC CIK: 0000035315
- SEC series ID: S000086560
- Share class ID: C000252148
FSPWX Holdings
Top 10 holdings of Fidelity SAI Inflation-Protected Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Ust Notes | 4.38% |
| Ust Notes | 3.93% |
| Ust Notes | 3.92% |
| Ust Notes | 3.85% |
| Ust Notes | 3.84% |
| Ust Notes | 3.79% |
| Ust Notes | 3.54% |
| Ust Notes | 3.48% |
| Ust Notes | 3.46% |
| Ust Notes | 3.35% |
FSPWX Portfolio Allocation
Asset-class allocation of Fidelity SAI Inflation-Protected Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 99.4% |
| Cash & Equivalents | 0.1% |
FSPWX Performance
Total returns for FSPWX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.3% |
| 1 year | 3.3% |
FSPWX Risk Information
Risk metrics for FSPWX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.7%
FSPWX Costs and Fees
FSPWX costs about $5 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.05%
- Gross expense ratio: 0.06%
- Portfolio turnover: 34%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
FSPWX Cashflows
Over the 12 months to 2026-06, Fidelity SAI Inflation-Protected Bond Index Fund had net inflows of $5.01B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$235.90M |
| 2026-05 | $1.27B |
| 2026-04 | $1.48B |
| 2026-03 | $162.85M |
| 2026-02 | $274.73M |
| 2026-01 | $618.85M |
FSPWX Debt Constituents
Largest debt holdings of Fidelity SAI Inflation-Protected Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Ust Notes | 4.38% |
| Ust Notes | 3.93% |
| Ust Notes | 3.92% |
| Ust Notes | 3.85% |
| Ust Notes | 3.84% |
| Ust Notes | 3.79% |
| Ust Notes | 3.54% |
| Ust Notes | 3.48% |
| Ust Notes | 3.46% |
| Ust Notes | 3.35% |
FSPWX Prospectus and SEC Filings
Official Fidelity SAI Inflation-Protected Bond Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-02-24
- Prospectus (485BPOS) — filed 2025-02-25
- Prospectus (485BPOS) — filed 2024-08-14
- Portfolio holdings (N-PORT) — filed 2026-08-24
- Portfolio holdings (N-PORT) — filed 2026-05-26
- Portfolio holdings (N-PORT) — filed 2026-02-24
- Annual census (N-CEN) — filed 2026-03-12
- Annual census (N-CEN) — filed 2025-03-14
Related Funds
Other Intermediate Treasury / Sovereign 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.