Summary Prospectus by Investment Company (Form 497K)

Fidelity® Conservative Income Municipal Bond Fund

Class/Ticker

Fidelity® Conservative Income Municipal Bond Fund/FMNDX

In this summary prospectus, the term "shares" (as it relates to the fund) means the class of shares offered through this summary prospectus.

Summary Prospectus

February 28, 2026

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 February 28, 2026 are incorporated herein by reference.

245 Summer Street, Boston, MA 02210

Fund Summary

Fund/Class:

/Fidelity® Conservative Income Municipal Bond Fund

Investment Objective

Fidelity® Conservative Income Municipal Bond Fund seeks to provide a high level of income, exempt from federal income tax, consistent with preservation of capital.

Fee Table

The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

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	0.20%
Distribution and/or Service (12b-1) fees	None
Other expenses	0.10%
Total annual operating expenses	0.30%
Fee waiver and/or expense reimbursement	0.05% A
Total annual operating expenses after fee waiver and/or expense reimbursement	0.25%

AFidelity Management & Research Company LLC (FMR) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, certain taxes, fees and expenses of the Independent Trustees, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 0.25% (the Expense Cap). If at any time during the current fiscal year expenses for the class of shares of the fund fall below the Expense Cap, FMR reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through April 30, 2027. FMR may not terminate this arrangement before the expiration date without the approval of the Board of Trustees and may extend it in its discretion after that date.

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	$	26
3 years	$	90
5 years	$	162
10 years	$	374

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 67% of the average value of its portfolio.

Principal Investment Strategies

Municipal debt securities are issued to raise money for a variety of public and private purposes, including general financing for state and local governments, financing for eligible non-profit organizations, or financing for a specific project or public facility. Municipal debt securities in which the fund invests include securities issued by U.S. territories and possessions, general obligation bonds of municipalities, local or state governments, project or revenue-specific bonds, or pre-refunded or escrowed bonds, municipal money market securities, and synthetic securities. Municipal securities usually pay a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security.

Municipal money market securities are high-quality, short-term debt securities that pay a fixed, variable, or floating interest rate, and include variable rate demand notes, commercial paper, and municipal notes. Municipal securities are issued to raise money for a variety of public and private purposes, including general financing for state and local governments, financing for eligible non-profit organizations, or financing for a specific project or public facility.

High quality investment grade securities in which the fund invests include securities or issuers (i) rated at least A- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO) or similarly rated by the Adviser, and (ii) for securities with a credit maturity within one year, rated at least BBB or its equivalent by all NRSROs that rate the security and similarly rated by the Adviser.

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.

Principal Investment Risks

The municipal market is volatile and can be significantly affected by adverse tax, legislative, or political changes and the financial condition of the issuers of municipal securities.

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

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.

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.

The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index, a hypothetical composite of market indexes, and an additional index over various periods of time. The hypothetical composite of market indexes and additional index have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

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

Year-by-Year Returns

	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
	0.31%	1.11%	1.56%	2.00%	0.88%	0.05%	0.27%	3.66%	3.30%	3.30%

During the periods shown in the chart:	Returns	Quarter ended
Highest Quarter Return	1.54%	December 31, 2023
Lowest Quarter Return	-0.64%	March 31, 2022

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. 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, 2025	Past 1 year	Past 5 years	Past 10 years
Fidelity® Conservative Income Municipal Bond Fund
Return Before Taxes	3.30%	2.10%	1.63%
Return After Taxes on Distributions	3.30%	2.10%	1.63%
Return After Taxes on Distributions and Sale of Fund Shares	3.18%	2.10%	1.62%
Fidelity Conservative Income Municipal Bond Composite Index℠ (reflects no deduction for fees, expenses, or taxes)	3.16%	1.96%	1.59%
Bloomberg Municipal Bond 1 Year (1-2 Y) Index (reflects no deduction for fees, expenses, or taxes)	3.47%	1.73%	1.58%
Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses, or taxes)	4.25%	0.80%	2.34%

Investment Adviser

Fidelity Management & Research Company LLC (FMR) (the Adviser) is the fund's manager. Other investment advisers serve as sub-advisers for the fund.

Portfolio Manager(s)

Elizah McLaughlin (Co-Portfolio Manager) has managed the fund since 2017.

Ryan Brogan (Co-Portfolio Manager) has managed the fund since 2021.

Cormac Cullen (Co-Portfolio Manager) has managed the fund since 2021.

Michael Maka (Co-Portfolio Manager) has managed the fund since 2021.

Purchase and Sale of Shares

You may buy or sell shares through a Fidelity® brokerage or mutual fund account, or through an investment professional.

You may buy or sell shares in various ways:

Internet

www.fidelity.com

Phone

Fidelity Automated Service Telephone (FAST®) 1-800-544-5555

To reach a Fidelity representative 1-800-544-6666

Mail

Additional Purchases: Fidelity Investments P.O. Box 770001 Cincinnati, OH 45277-0003

Redemptions: Fidelity Investments P.O. Box 770001 Cincinnati, OH 45277-0035

Shares of the fund are not eligible for purchase by registered investment companies or business development companies to the extent such acquisition is in reliance on Rule 12d1-4 under the Investment Company Act of 1940.

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

The fund seeks to earn income and pay dividends exempt from federal income tax. Income exempt from federal income tax may be subject to state or local tax. A portion of the dividends you receive may be subject to federal and state income taxes and may also be subject to the federal alternative minimum tax. You may also receive taxable distributions attributable to the fund's sale of bonds.

Payments to Broker-Dealers and Other Financial Intermediaries

The fund, the Adviser, 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 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.

Current regulations allow Fidelity to send a single copy of shareholder documents for Fidelity® funds, such as prospectuses, annual and semi-annual reports, and proxy materials, to certain mutual fund customers whom we believe are members of the same family who share the same address. For certain types of accounts, we will not send multiple copies of these documents to you and members of your family who share the same address. Instead, we will send only a single copy of these documents. This will continue for as long as you are a shareholder, unless you notify us otherwise. If at any time you choose to receive individual copies of any documents, please call 1-800-544-8544. We will begin sending individual copies to you within 30 days of receiving your call.

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. © 2026 FMR LLC. All rights reserved.

1.967777.117

CMB-I-SUM-0226

Fidelity® Conservative Income Municipal Bond Fund

Class/Ticker

Fidelity Advisor® Conservative Income Municipal Bond Fund

A/FMNFX I/FMNGX Z/FMNHX

Summary Prospectus

February 28, 2026

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 1-866-997-1254 or by sending an e-mail request to [email protected]. The fund's prospectus and SAI dated February 28, 2026 are incorporated herein by reference.

245 Summer Street, Boston, MA 02210

Fund Summary

Fund/Class:

/Fidelity Advisor® Conservative Income Municipal Bond Fund A, I, Z

Investment Objective

Fidelity® Conservative Income Municipal Bond Fund seeks to provide a high level of income, exempt from federal income tax, consistent with preservation of capital.

Fee Table

The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $250,000 in the fund or certain other Fidelity® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 30 of the prospectus and in the sales charge waiver appendix to the prospectus.

Shareholder fees

(fees paid directly from your investment)

	Class A	Class I	Class Z
Maximum sales charge (load) on purchases (as a % of offering price)	1.50%	None	None
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)	None A	None	None

APurchases of $250,000 or more will not be subject to a front-end sales charge, but may be subject to a 0.50% contingent deferred sales charge (CDSC) if the intermediary firm has elected an upfront finder's fee at the time the shares are purchased, or a 0.75% CDSC if the shares purchased are recordkept in a Fidelity Advisor® 401(k) Retirement Plan.

Annual Operating Expenses

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

	Class A	Class I	Class Z
Management fee	0.20%	0.20%	0.20%
Distribution and/or Service (12b-1) fees	0.15%	None	None
Other expenses	0.13%	0.18%	0.05%
Total annual operating expenses	0.48%	0.38%	0.25%
Fee waiver and/or expense reimbursement	0.03% A	0.13% A	0.05% A
Total annual operating expenses after fee waiver and/or expense reimbursement	0.45%	0.25%	0.20%

AFidelity Management & Research Company LLC (FMR) has contractually agreed to reimburse Class A, Class I, and Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, fees and expenses of the Independent Trustees, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of their average net assets, exceed 0.45%, 0.25%, and 0.20% (the Expense Caps). If at any time during the current fiscal year expenses for Class A, Class I, or Class Z of the fund fall below the Expense Caps, FMR reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Caps. These arrangements will remain in effect through April 30, 2027. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees and may extend them in its discretion after that date.

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:

	Class A		Class I		Class Z
1 year	$	195	$	26	$	20
3 years	$	298	$	104	$	74
5 years	$	411	$	196	$	134
10 years	$	741	$	463	$	311

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 67% of the average value of its portfolio.

Principal Investment Strategies

Municipal debt securities are issued to raise money for a variety of public and private purposes, including general financing for state and local governments, financing for eligible non-profit organizations, or financing for a specific project or public facility. Municipal debt securities in which the fund invests include securities issued by U.S. territories and possessions, general obligation bonds of municipalities, local or state governments, project or revenue-specific bonds, or pre-refunded or escrowed bonds, municipal money market securities, and synthetic securities. Municipal securities usually pay a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security.

Municipal money market securities are high-quality, short-term debt securities that pay a fixed, variable, or floating interest rate, and include variable rate demand notes, commercial paper, and municipal notes. Municipal securities are issued to raise money for a variety of public and private purposes, including general financing for state and local governments, financing for eligible non-profit organizations, or financing for a specific project or public facility.

High quality investment grade securities in which the fund invests include securities or issuers (i) rated at least A- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO) or similarly rated by the Adviser, and (ii) for securities with a credit maturity within one year, rated at least BBB or its equivalent by all NRSROs that rate the security and similarly rated by the Adviser.

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.

Principal Investment Risks

The municipal market is volatile and can be significantly affected by adverse tax, legislative, or political changes and the financial condition of the issuers of municipal securities.

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

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.

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.

The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index, a hypothetical composite of market indexes, and an additional index over various periods of time. The hypothetical composite of market indexes and additional index have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

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

Year-by-Year Returns

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

									2024	2025
									3.11%	3.10%

During the periods shown in the chart for Class A:	Returns	Quarter ended
Highest Quarter Return	1.18%	September 30, 2024
Lowest Quarter Return	0.48%	December 31, 2024

Average Annual Returns

Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 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. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 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, 2025	Past 1 year	Life of class
Class A - Return Before Taxes	1.55%	2.75%A
Return After Taxes on Distributions	1.55%	2.75%A
- Return After Taxes on Distributions and Sale of Fund Shares	2.04%	2.80%A
Class I - Return Before Taxes	3.30%	3.54%B
Class Z - Return Before Taxes	3.36%	3.60%C
Fidelity Conservative Income Municipal Bond Composite Index℠ (reflects no deduction for fees, expenses, or taxes)	3.16%	3.37%
Bloomberg Municipal Bond 1 Year (1-2 Y) Index (reflects no deduction for fees, expenses, or taxes)	3.47%	3.47%
Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses, or taxes)	4.25%	4.03%

AFrom May 25, 2023.

BFrom May 25, 2023.

CFrom May 25, 2023.

Investment Adviser

Fidelity Management & Research Company LLC (FMR) (the Adviser) is the fund's manager. Other investment advisers serve as sub-advisers for the fund.

Portfolio Manager(s)

Elizah McLaughlin (Co-Portfolio Manager) has managed the fund since 2017.

Ryan Brogan (Co-Portfolio Manager) has managed the fund since 2021.

Cormac Cullen (Co-Portfolio Manager) has managed the fund since 2021.

Michael Maka (Co-Portfolio Manager) has managed the fund since 2021.

Purchase and Sale of Shares

You may buy or sell shares through a retirement account or through an investment professional.

You may buy or sell shares in various ways:

Internet

institutional.fidelity.com

Phone

To reach a Fidelity representative 1-877-208-0098

Mail

Fidelity Investments P.O. Box 770002 Cincinnati, OH 45277-0081

Overnight Express: Fidelity Investments 100 Crosby Parkway Covington, KY 41015

Shares of the fund are not eligible for purchase by registered investment companies or business development companies to the extent such acquisition is in reliance on Rule 12d1-4 under the Investment Company Act of 1940.

Class I and Class Z eligibility requirements are listed in the "Additional Information about the Purchase and Sale of Shares" section of the prospectus.

The price to buy one share of Class A is its offering price, if you pay a front-end sales charge, or its net asset value per share (NAV), if you qualify for a front-end sales charge waiver.

The price to buy one share of Class I or Class Z is its NAV.

Shares will be bought at the offering price or NAV, as applicable, next calculated after an order is received in proper form.

The price to sell one share of Class A is its NAV, minus any applicable CDSC.

The price to sell one share of Class I or Class Z is its NAV.

Shares will be sold at the NAV next calculated after an order is received in proper form, minus any applicable CDSC.

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

The fund seeks to earn income and pay dividends exempt from federal income tax. Income exempt from federal income tax may be subject to state or local tax. A portion of the dividends you receive may be subject to federal and state income taxes and may also be subject to the federal alternative minimum tax. You may also receive taxable distributions attributable to the fund's sale of bonds.

Payments to Broker-Dealers and Other Financial Intermediaries

The fund, the Adviser, 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 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.

Current regulations allow Fidelity to send a single copy of shareholder documents for Fidelity® funds, such as prospectuses, annual and semi-annual reports, and proxy materials, to certain mutual fund customers whom we believe are members of the same family who share the same address. For certain types of accounts, we will not send multiple copies of these documents to you and members of your family who share the same address. Instead, we will send only a single copy of these documents. This will continue for as long as you are a shareholder, unless you notify us otherwise. If at any time you choose to receive individual copies of any documents, please call 1-877-208-0098. We will begin sending individual copies to you within 30 days of receiving your call.

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. © 2026 FMR LLC. All rights reserved.

1.9909404.103

ACMB-SUM-0226