Summary Prospectus by Investment Company (Form 497K)

Fund/Ticker

Fidelity® SAI Inflation-Focused Fund/FIFGX

Offered exclusively to certain clients of Strategic Advisers LLC or its affiliates - not available for sale to the general public. Fidelity® SAI is a product name of Fidelity® funds dedicated to certain programs affiliated with Strategic Advisers LLC, an affiliate of Fidelity Management & Research Company LLC.

Summary Prospectus

September 29, 2025

Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You can find the fund's prospectus, reports to shareholders, and other information about the fund (including the fund's SAI) online at fundresearch.fidelity.com/prospectus/sec. You can also get this information at no cost by calling 1-800-FIDELITY or by sending an e-mail request to [email protected]. The fund's prospectus and SAI dated September 29, 2025 are incorporated herein by reference.

245 Summer Street, Boston, MA 02210

Fund Summary

Fund:

Fidelity® SAI Inflation-Focused Fund

Investment Objective

Fidelity® SAI Inflation-Focused Fund seeks total return.

Fee Table

The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund.

Shareholder fees

(fees paid directly from your investment)

None

Annual Operating Expenses

(expenses that you pay each year as a % of the value of your investment)

Management fee	0.38%
Distribution and/or Service (12b-1) fees	None
Other expenses	0.01%
Total annual operating expenses	0.39%

This example helps compare the cost of investing in the fund with the cost of investing in other funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

1 year	$	40
3 years	$	125
5 years	$	219
10 years	$	493

Portfolio Turnover

The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 0% of the average value of its portfolio.

Principal Investment Strategies

Principal Investment Risks

Interest rate increases can cause the price of a debt security to decrease.

Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.

Changes in government regulation and interest rates and economic downturns can have a significant negative effect on issuers in the financial services sector, including the price of their securities or their ability to meet their payment obligations.

Investment in Geode SAI Inflation-Focused Cayman Ltd., an unregistered subsidiary, is not subject to the investor protections of the Investment Company Act of 1940 (1940 Act) and is subject to the risks associated with investing in derivatives and commodity-linked investing in general. Changes in tax and other laws could negatively affect investments in the subsidiary.

The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.

The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.

A decline in the credit quality of an issuer or a provider of credit support (such as guarantees) or a maturity-shortening structure (such as demand and put features) for a security can cause the price of a security to decrease.

Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.

Increases in real interest rates can cause the price of inflation-protected debt securities to decrease. Interest payments on inflation-protected debt securities can be unpredictable.

The value of commodities and commodity-linked investments may be affected by the performance of the overall commodities markets as well as weather, political, tax, and other regulatory and market developments. Commodity-linked investments may be more volatile and less liquid than the underlying commodity, instruments, or measures.

Investments in commodity futures contracts are also subject to the risk of the failure of any of the exchanges on which the fund's positions trade or of its clearinghouses or counterparties. In addition, certain commodity exchanges limit fluctuations in certain futures contract prices during a single day by regulations referred to as "daily price fluctuation limits" or "daily limits." Under such daily limits, during a single trading day no trades may be executed at prices beyond the daily limit. If triggered, these limits could prevent the fund from liquidating unfavorable positions and subject the fund to losses or prevent it from entering into desired trades during the particular trading day.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Unlike individual debt securities, which typically pay principal at maturity, the value of an investment in the fund will fluctuate.

Performance

The following information is intended to help you understand the risks of investing in the fund.

Prior to September 29, 2023, the fund operated under certain different investment policies. The fund's historical performance may not represent its current investment policies.

Visit www.fidelity.com for more recent performance information.

Year-by-Year Returns

					2019	2020	2021	2022	2023	2024
					9.84%	1.46%	32.59%	9.10%	-11.90%	6.35%

During the periods shown in the chart:	Returns	Quarter ended
Highest Quarter Return	22.91%	March 31, 2022
Lowest Quarter Return	-22.96%	March 31, 2020
Year-to-Date Return	3.03%	June 30, 2025

Average Annual Returns

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.

For the periods ended December 31, 2024	Past 1 year	Past 5 years	Life of fund
Fidelity® SAI Inflation-Focused Fund
Return Before Taxes	6.35%	6.58%	6.73% A
Return After Taxes on Distributions	4.31%	2.27%	2.99% A
Return After Taxes on Distributions and Sale of Fund Shares	3.72%	3.31%	3.68% A
Fidelity Commodity Linked Index℠ (reflects no deduction for fees, expenses, or taxes)	6.88%	6.22%	5.96%
Bloomberg Commodity 50/50 Petroleum and ex-Petroleum Index (reflects no deduction for fees, expenses, or taxes)	6.88%	n/a	n/a
MSCI ACWI (All Country World Index) Index (reflects no deduction for fees or expenses)	17.87%	10.44%	13.19%

AFrom December 20, 2018.

The fund has begun comparing its performance to the MSCI ACWI (All Country World Index) Index to satisfy a new Securities and Exchange Commission (SEC) disclosure requirement.

Investment Adviser

Geode Capital Management, LLC (Geode) (the Adviser) is the fund's manager.

Portfolio Manager(s)

Eric Matteson (Senior Portfolio Manager) has managed the fund since 2018.

Wayne Ryan (Senior Portfolio Manager) has managed the fund since 2018.

Ruoyu Wang (Portfolio Manager) has managed the fund since 2020.

Purchase and Sale of Shares

NOT AVAILABLE FOR SALE TO THE GENERAL PUBLIC.

Shares are offered exclusively to certain clients of Strategic Advisers LLC (Strategic Advisers) or its affiliates.

The price to buy one share is its net asset value per share (NAV). Shares will be bought at the NAV next calculated after an order is received in proper form.

The price to sell one share is its NAV. Shares will be sold at the NAV next calculated after an order is received in proper form.

The fund is open for business each day the New York Stock Exchange (NYSE) is open.

There is no purchase minimum for fund shares.

Tax Information

Distributions you receive from the fund are subject to federal income tax and generally will be taxed as ordinary income or capital gains, and may also be subject to state or local taxes, unless you are investing through a tax-advantaged retirement account (in which case you may be taxed later, upon withdrawal of your investment from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

The fund, the Adviser, Strategic Advisers, Fidelity Distributors Company LLC (FDC), and/or their affiliates may pay intermediaries, which may include banks, broker-dealers, retirement plan sponsors, administrators, or service-providers (who may be affiliated with the Adviser, Strategic Advisers, or FDC), for the sale of fund shares and related services. These payments may create a conflict of interest by influencing your intermediary and your investment professional to recommend the fund over another investment. Ask your investment professional or visit your intermediary's web site for more information.

Fidelity Distributors Company LLC (FDC) is a member of the Securities Investor Protection Corporation (SIPC). You may obtain information about SIPC, including the SIPC brochure, by visiting www.sipc.org or calling SIPC at 202-371-8300.

Fidelity, the Fidelity Investments Logo and all other Fidelity trademarks or service marks used herein are trademarks or service marks of FMR LLC. Any third-party marks that are used herein are trademarks or service marks of their respective owners. © 2025 FMR LLC. All rights reserved.

1.9892164.107

IFF-SUM-0925