FNSOX
Fidelity Short-Term Bond Index Fund
Fidelity Salem Street Trust
Index fund
Expense ratio1
0.03%
Net assets2
$3.63B
Holdings2
1393
Category
Taxable Bond
2025 return3
5.99%

Investment objective & strategy

As of Oct. 27, 2025 · prospectus

Objective. Fidelity Short-Term Bond Index Fund seeks to obtain a high level of current income consistent with preservation of capital.

Strategy. Normally investing at least 80% of assets in securities included in the Bloomberg U.S. 1-5 Year Government/Credit Bond Index. The Bloomberg U.S. 1-5 Year Government/Credit Bond Index is a market value-weighted index of fixed-rate investment-grade debt securities with maturities from one to five years from the U.S. Treasury, U.S. Government-Related, and U.S. Corporate Indexes. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Normally maintaining a dollar-weighted average maturity that generally is expected to be three years or less, consistent with … Normally investing at least 80% of assets in securities included in the Bloomberg U.S. 1-5 Year Government/Credit Bond Index. The Bloomberg U.S. 1-5 Year Government/Credit Bond Index is a market value-weighted index of fixed-rate investment-grade debt securities with maturities from one to five years from the U.S. Treasury, U.S. Government-Related, and U.S. Corporate Indexes. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Normally maintaining a dollar-weighted average maturity that generally is expected to be three years or less, consistent with that of the index. Using statistical sampling techniques based on duration, maturity, interest rate sensitivity, security structure, and credit quality to attempt to replicate the returns of the Bloomberg U.S. 1-5 Year Government/Credit Bond Index using a smaller number of securities. Engaging in transactions that have a leveraging effect on the fund, including investments in derivatives - such as swaps (interest rate, total return, and credit default), options, and futures contracts - and forward-settling securities, to adjust the fund's risk exposure. Investing in domestic and foreign issuers.

Top holdings

As of Feb. 28, 2026 · N-PORT
SecurityTickerValue% of fund
US TREASURY N/B $127.58M 3.51%
US TREASURY N/B $102.48M 2.82%
US TREASURY N/B $92.11M 2.53%
US TREASURY N/B $89.05M 2.45%
US TREASURY N/B $87.75M 2.42%
US TREASURY N/B $87.60M 2.41%
US TREASURY N/B $86.04M 2.37%
US TREASURY N/B $78.29M 2.15%
US TREASURY N/B $73.83M 2.03%
US TREASURY N/B $71.78M 1.98%
View all holdings →

Allocation by sector

As of February 28, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Nov 30, 2025 → Feb 28, 2026
Opened
139
Exited
147
Increased
50
Decreased
10
Unchanged
1194

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

Similar funds

Funds whose portfolios most overlap this one, by weight
FundOverlapNet exp.
Fidelity Short-Term Treasury Bond Index Fund · FUMBX 40% 0.03%
Schwab Short-Term Bond Index Fund · SWSBX 39% 0.06%
VANGUARD SHORT-TERM BOND INDEX FUND · VBISX, VBIRX, BSV, VBITX, VBIPX 36% 0.02%
View all similar funds →

Advisers

As of August 31, 2025 · N-CEN
FirmRole
FMR Investment Management (UK) Limited Sub-adviser
Fidelity Management & Research (Japan) Limited Sub-adviser
Fidelity Management & Research (Hong Kong) Limited Sub-adviser
Fidelity Management & Research Company LLC Adviser

Footnotes

  1. Expense ratio as of October 27, 2025, from the fund's prospectus.
  2. Net assets and holdings count as of February 28, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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