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Fidelity Salem Street Trust
Fund Summary
Fund /Class:
Fidelity® Sustainable Low Duration Bond Fund
/Fidelity Advisor® Sustainable Low Duration Bond Fund A, M, C, I, Z
Investment Objective
Fidelity® Sustainable Low Duration Bond Fund seeks to obtain a high level of current income 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
40
of the prospectus
and in
the sales charge
waiver appendix to
the prospectus.
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
40
of the prospectus
250000
Shareholder fees
0.0150
0.0150
0
0
0
0
0
Purchases 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.
Purchases of $250,000 or more will not be subject to a front-end sales charge but may be subject to a 0.25% CDSC if a finder's fee is paid at the time the shares are purchased.
On Class C shares redeemed less than one year after purchase.
Annual Operating Expenses
0.0020
0.0020
0.0020
0.0020
0.0020
0.0015
0.0015
0.0100
0
0
0.0012
0.0007
0.0008
0.0007
0.0005
0.0047
0.0042
0.0128
0.0027
0.0025
-0.0000
-0.0000
0.0045
0.0042
0.0128
0.0025
0.0020
2026-12-31
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 and if you hold your shares:
195
195
192
192
230
130
26
26
20
20
296
296
283
283
406
406
84
84
74
74
406
406
382
382
702
702
149
149
134
134
730
730
672
672
1321
1321
341
341
311
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
58
% of the average value of its portfolio.
0.58
Principal Investment Strategies
Normally investing at least 80% of assets in investment-grade debt securities (those of medium and high quality) of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
Investment grade securities in which the fund invests include securities or issuers rated at least BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Normally maintaining a duration of 1 year or less.
Managing the fund to have similar overall interest rate risk to the Bloomberg US Treasury Bill: 6-9 Months Index.
Normally maintaining a dollar-weighted average maturity of two years or less.
Allocating assets across different market sectors and maturities.
Investing more than 25% of total assets in the financial services industries.
Investing in domestic and foreign issuers.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Financial Services Concentration.
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.
Prepayment.
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.
Issuer-Specific Changes.
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 Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
institutional.fidelity.com
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.
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.
0.0505
0.0510
Highest Quarter Return
0.0170
2023-12-31
Lowest Quarter Return
0.0094
2023-06-30
Year-to-Date Return
0.0334
2025-09-30
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.
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.
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.
Return Before Taxes
0.0352
Return After Taxes on Distributions
0.0171
Return After Taxes on Distributions and Sale of Fund Shares
0.0217
Return Before Taxes
0.0354
Return Before Taxes
0.0323
Return Before Taxes
0.0531
Return Before Taxes
0.0536
Bloomberg US Treasury Bill: 6-9 Months Index
0.0488
0.0362
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0036
2022-04-13
2022-04-13
2022-04-13
2022-04-13
2022-04-13
Fund Summary
Fund /Class:
Fidelity® Sustainable Core Plus Bond Fund
/Fidelity Advisor® Sustainable Core Plus Bond Fund A, M, C, I, Z
Investment Objective
Fidelity® Sustainable Core Plus Bond Fund seeks a high level of current income.
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 $
50,000
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 23
of the prospectus
and in
the sales charge
waiver appendix to
the prospectus.
You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $
50,000
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 23
of the prospectus
50000
Shareholder fees
0.0400
0.0400
0
0
0
0
0
Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 0.75% and 0.25%, respectively.
On Class C shares redeemed less than one year after purchase.
Annual Operating Expenses
0.0035
0.0035
0.0035
0.0035
0.0035
0.0025
0.0025
0.0100
0
0
0.0007
0.0014
0.0014
0.0014
0.0005
0.0067
0.0074
0.0149
0.0049
0.0040
-0.0000
-0.0000
-0.0000
0.0067
0.0074
0.0149
0.0045
0.0036
2026-12-31
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 and if you hold your shares:
466
466
473
473
252
152
46
46
37
37
606
606
627
627
471
471
152
152
123
123
758
758
795
795
813
813
269
269
219
219
1201
1201
1282
1282
1557
1557
611
611
500
500
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
201
% of the average value of its portfolio.
2.01
Principal Investment Strategies
Normally investing at least 80% of assets in debt securities of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, the issuer's potential for success, the credit, currency, and economic risks of the security and its issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Allocating assets across investment-grade, high yield, and emerging market debt securities. Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics.
Investing up to 20% of assets in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds).
Managing the fund to have similar overall interest rate risk to the Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index.
Investing in domestic and foreign issuers.
Allocating assets across different asset classes, market sectors, and maturities.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
Foreign markets, particularly emerging 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.
Foreign exchange rates also can be extremely volatile.
Prepayment.
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.
Issuer-Specific Changes.
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.
Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
High Portfolio Turnover.
High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance.
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
institutional.fidelity.com
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.
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.
0.0627
0.0142
Highest Quarter Return
0.0685
2023-12-31
Lowest Quarter Return
-0.0318
2023-09-30
Year-to-Date Return
0.0612
2025-09-30
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.
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.
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.
Return Before Taxes
-0.0264
Return After Taxes on Distributions
-0.0413
Return After Taxes on Distributions and Sale of Fund Shares
-0.0157
Return Before Taxes
-0.0266
Return Before Taxes
-0.0033
Return Before Taxes
0.0166
Return Before Taxes
0.0185
Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index
0.0127
0.0039
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0036
2022-04-13
2022-04-13
2022-04-13
2022-04-13
2022-04-13
Fund Summary
Fund:
Fidelity® Series Corporate Bond Fund
Investment Objective
Fidelity® Series Corporate Bond Fund seeks a high level of current income.
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
0
Annual Operating Expenses
0.0000
0
0.0000
0.0000
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:
0
0
0
0
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
39
% of the average value of its portfolio.
0.39
Principal Investment Strategies
Normally investing at least 80% of assets in corporate bonds and other corporate debt securities and repurchase agreements for those securities.
Corporate debt securities are bonds and other debt securities issued by corporations and other business structures to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Corporate debt securities include repurchase agreements with corporate counterparties and other securities, such as hybrids and synthetic securities, believed to have corporate debt-like characteristics, (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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 investing primarily in investment-grade corporate debt securities and repurchase agreements for those securities.
Managing the fund to have similar overall interest rate risk to the Bloomberg U.S. Credit Bond Index.
Investing in domestic and foreign issuers.
Analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Investing in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds).
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 Fidelity's Central funds (specialized investment vehicles used by Fidelity® funds to invest in particular security types or investment disciplines) consistent with the asset classes discussed above.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Prepayment.
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.
Issuer-Specific Changes.
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.
Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
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.
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 and an additional index over various periods of time.
The additional index has 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.
The performance shown does not reflect the impact of any fees paid at the fee-based account or plan level, if applicable.
Visit
www.fidelity.com
for more recent performance information.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.1444
0.1122
-0.0098
-0.1632
0.0907
0.0311
Highest Quarter Return
0.1062
2020-06-30
Lowest Quarter Return
-0.0763
2022-03-31
Year-to-Date Return
0.0722
2025-09-30
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.
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.
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.
Return Before Taxes
0.0311
0.0072
Return After Taxes on Distributions
0.0136
-0.0078
Return After Taxes on Distributions and Sale of Fund Shares
0.0194
-0.0005
Bloomberg U.S. Credit Bond Index
0.0203
0.0023
0.0219
Bloomberg U.S. Aggregate Bond Index
0.0125
-0.0033
0.0124
2018-08-17
Fund Summary
Fund /Class:
Fidelity® Sustainable Core Plus Bond Fund
/Fidelity® Sustainable Core Plus Bond Fund
Investment Objective
Fidelity® Sustainable Core Plus Bond Fund seeks a high level of current income.
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
0
Annual Operating Expenses
0.0035
0
0.0010
0.0045
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:
46
144
252
567
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
201
% of the average value of its portfolio.
2.01
Principal Investment Strategies
Normally investing at least 80% of assets in debt securities of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, the issuer's potential for success, the credit, currency, and economic risks of the security and its issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Allocating assets across investment-grade, high yield, and emerging market debt securities. Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics.
Investing up to 20% of assets in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds).
Managing the fund to have similar overall interest rate risk to the Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index.
Investing in domestic and foreign issuers.
Allocating assets across different asset classes, market sectors, and maturities.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
Foreign markets, particularly emerging 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.
Foreign exchange rates also can be extremely volatile.
Prepayment.
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.
Issuer-Specific Changes.
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.
Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
High Portfolio Turnover.
High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance.
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0651
0.0165
Highest Quarter Return
0.0691
2023-12-31
Lowest Quarter Return
-0.0312
2023-09-30
Year-to-Date Return
0.0630
2025-09-30
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.
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.
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.
Return Before Taxes
0.0165
Return After Taxes on Distributions
0.0002
Return After Taxes on Distributions and Sale of Fund Shares
0.0099
Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index
0.0127
0.0039
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0036
2022-04-13
Fund Summary
Fund /Class:
Fidelity® Sustainable Low Duration Bond Fund
/Fidelity® Sustainable Low Duration Bond Fund
Investment Objective
Fidelity® Sustainable Low Duration Bond Fund seeks to obtain a high level of current income 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
0
Annual Operating Expenses
0.0020
0
0.0010
0.0030
0.0025
2026-12-31
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:
26
90
162
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
58
% of the average value of its portfolio.
0.58
Principal Investment Strategies
Normally investing at least 80% of assets in investment-grade debt securities (those of medium and high quality) of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
Investment grade securities in which the fund invests include securities or issuers rated at least BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Normally maintaining a duration of 1 year or less.
Managing the fund to have similar overall interest rate risk to the Bloomberg US Treasury Bill: 6-9 Months Index.
Normally maintaining a dollar-weighted average maturity of two years or less.
Allocating assets across different market sectors and maturities.
Investing more than 25% of total assets in the financial services industries.
Investing in domestic and foreign issuers.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Financial Services Concentration.
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.
Prepayment.
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.
Issuer-Specific Changes.
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 Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0527
0.0531
Highest Quarter Return
0.0175
2023-12-31
Lowest Quarter Return
0.0099
2023-06-30
Year-to-Date Return
0.0349
2025-09-30
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.
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.
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.
Return Before Taxes
0.0531
Return After Taxes on Distributions
0.0342
Return After Taxes on Distributions and Sale of Fund Shares
0.0326
Bloomberg US Treasury Bill: 6-9 Months Index
0.0488
0.0362
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0036
2022-04-13
Fund Summary
Fund:
Fidelity® SAI Sustainable Low Duration Bond Fund
Investment Objective
Fidelity® SAI Sustainable Low Duration Bond
Fund seeks to obtain a high level of current income 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.
Shareholder fees
0
Annual Operating Expenses
0.0020
0
0.0023
0.0043
0.0020
2026-12-31
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:
20
107
210
512
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
57
% of the average value of its portfolio.
0.57
Principal Investment Strategies
Normally investing at least 80% of assets in investment-grade debt securities (those of medium and high quality) of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
Investment grade securities in which the fund invests include securities or issuers rated at least BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Normally maintaining a duration of 1 year or less.
Managing the fund to have similar overall interest rate risk to the Bloomberg US Treasury Bill: 6-9 Months Index.
Normally maintaining a dollar-weighted average maturity of two years or less.
Allocating assets across different market sectors and maturities.
Investing more than 25% of total assets in the financial services industries.
Investing in domestic and foreign issuers.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Financial Services Concentration.
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.
Prepayment.
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.
Issuer-Specific Changes.
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 Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0536
0.0534
Highest Quarter Return
0.0172
2023-12-31
Lowest Quarter Return
0.0100
2023-06-30
Year-to-Date Return
0.0357
2025-09-30
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.
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.
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.
Return Before Taxes
0.0534
Return After Taxes on Distributions
0.0395
Return After Taxes on Distributions and Sale of Fund Shares
0.0327
Bloomberg US Treasury Bill: 6-9 Months Index
0.0488
0.0362
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0036
2022-04-13
Fund Summary
Fund:
Fidelity® Series Sustainable Investment Grade Bond Fund
Investment Objective
Fidelity® Series Sustainable Investment Grade Bond Fund seeks a high level of current income.
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
0
Annual Operating Expenses
0.0000
0
0.0002
0.0002
0.0000
December 31,
2028
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:
0
0
4
19
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
235
% of the average value of its portfolio.
2.35
Principal Investment Strategies
Normally investing at least 80% of assets in investment-grade debt securities (those of medium and high quality) of all types that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have positive environmental, social and governance (ESG) characteristics and repurchase agreements for those securities.
Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).
Investment grade securities in which the fund invests include securities or issuers rated at least BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Evaluating each security in which the fund invests using both a traditional bond credit, structure and relative value analysis and a consideration of the Adviser's judgment about the security's ESG characteristics. When assessing a security's ESG characteristics and its eligibility for purchase, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors.
Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team.
The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.
Investing in debt securities of issuers that the Adviser believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.
When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.
In addition to its focus on debt securities with positive ESG characteristics, analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Allocating assets across different market sectors and maturities.
Investing in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds).
Managing the fund to have similar overall interest rate risk to the Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index.
Investing in domestic and foreign issuers.
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.
Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.
Sustainability Risk.
Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Prepayment.
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.
Issuer-Specific Changes.
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.
Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
Management Risk.
The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies .
High Portfolio Turnover.
High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance.
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.
Performance
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
The additional index has 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.
The performance shown does not reflect the impact of any fees paid at the fee-based account or plan level, if applicable.
Visit
www.fidelity.com
for more recent performance information.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0126
Highest Quarter Return
0.0517
2024-09-30
Lowest Quarter Return
-0.0310
2024-12-31
Year-to-Date Return
0.0623
2025-09-30
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
.
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.
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
.
Return Before Taxes
0.0126
Return After Taxes on Distributions
-0.0064
Return After Taxes on Distributions and Sale of Fund Shares
0.0074
Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index
0.0127
0.0180
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0179
2023-05-11
Fund Summary
Fund /Class:
Fidelity® Conservative Income Bond Fund
/Fidelity Advisor® Conservative Income Bond Fund A, I, Z
Investment Objective
Fidelity® Conservative Income Bond Fund seeks to obtain a high level of current income 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 31 of the prospectus
and in
the sales charge
waiver appendix to
the prospectus.
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 31 of the prospectus
250000
Shareholder fees
0.0150
0
0
0
0
Purchases 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
0.0020
0.0020
0.0020
0.0015
0
0
0.0013
0.0017
0.0005
0.0048
0.0037
0.0025
0.0045
0.0025
0.0020
2026-12-31
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:
195
26
20
298
102
74
411
191
134
741
452
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
73
% of the average value of its portfolio.
0.73
Principal Investment Strategies
Normally investing at least 80% of assets in U.S. dollar-denominated money market and high quality investment-grade debt securities of all types, and repurchase agreements for those securities.
Debt securities, including money market securities, are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, and mortgage and other asset-backed securities. Money market securities include bank certificates of deposit, bankers' acceptances, bank time deposits, notes, commercial paper, and U.S. Government securities.
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.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Potentially entering into reverse repurchase agreements.
Managing the fund to have similar overall interest rate risk to the Bloomberg U.S. 3-6 Month Treasury Bill Index.
Normally maintaining a dollar-weighted average maturity of one year or less.
Normally investing in securities with a maximum maturity of four years.
Allocating assets across different market sectors and maturities.
Investing more than 25% of total assets in the financial services industries.
Investing in domestic and foreign issuers.
Analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Interest Rate Changes.
Interest rate increases can cause the price of a debt or money market security to decrease.
Foreign Exposure.
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.
Financial Services Concentration.
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.
Prepayment.
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.
Issuer-Specific Changes.
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.
Performance
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the
performance of
the fund's shares over the past
year and compares the performance of
the fund's
shares to the performance of a securities market index
and an additional index over various periods of time.
The additional index has 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
.
The information illustrates the
performance of
the fund's shares over the past
year and compares the performance of
the fund's
shares to the performance of a securities market index
and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
institutional
.fidelity.com
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
.
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
.
0.0520
Highest Quarter Return
0.0155
2024-09-30
Lowest Quarter Return
0.0102
2024-12-31
Year-to-Date Return
0.0329
2025-09-30
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.
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.
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.
Return Before Taxes
0.0362
Return After Taxes on Distributions
0.0163
Return After Taxes on Distributions and Sale of Fund Shares
0.0220
Return Before Taxes
0.0541
Return Before Taxes
0.0546
Bloomberg U.S. 3-6 Month Treasury Bill Index
0.0533
0.0542
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0342
2023-05-25
2023-05-25
2023-05-25
Fund Summary
Fund:
Fidelity® SAI Investment Grade Securitized Fund
Investment Objective
Fidelity® SAI Investment Grade Securitized Fund seeks a high level of current income.
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
0
Annual Operating Expenses
0.0028
0
0.0003
0.0031
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:
32
100
174
393
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
715
% of the average value of its portfolio.
7.15
Principal Investment Strategies
Normally investing at least 80% of assets in investment-grade securitized debt securities (those of medium and high quality) and repurchase agreements for those securities.
Securitized debt securities are interests in pools of mortgages, loans, receivables, or other assets, and include such instruments as mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities
that are issued by the U.S. Government,
its agencies or instrumentalities, foreign governments,
financial institutions, trusts and corporations. Payment of principal or interest on securitized debt instruments generally depends on the cash flows generated by the underlying assets and may be supported by letters of credit, surety bonds, or other credit enhancements.
Investment grade securities in which the fund invests include securities or issuers rated at least BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Investing in U.S. Government securities issued by entities that are chartered or sponsored by Congress but whose securities are neither issued nor guaranteed by the U.S. Treasury.
Managing the fund to have similar overall interest rate risk to the Bloomberg U.S. Securitized Index.
Allocating assets across different market sectors and maturities.
Investing in domestic and foreign issuers.
Analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Investing in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds).
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.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Securitized Debt Securities Exposure.
Securitized debt securities are dependent on the cash flows generated by the underlying assets and can be significantly affected by changes in interest rates, the availability of information concerning the underlying assets and their structure, and the creditworthiness of the originators of the loans or other receivables or the entities providing credit support.
Prepayment.
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.
Issuer-Specific Changes.
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.
Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.
U.S. Government Obligations Risk.
Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
High Portfolio Turnover.
High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance.
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.
Performance
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
The additional index has 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.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0142
Highest Quarter Return
0.0551
2024-09-30
Lowest Quarter Return
-0.0316
2024-12-31
Year-to-Date Return
0.0686
2025-09-30
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
.
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.
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
.
Return Before Taxes
0.0142
Return After Taxes on Distributions
-0.0059
Return After Taxes on Distributions and Sale of Fund Shares
0.0086
Bloomberg U.S. Securitized Index
0.0146
0.0249
Bloomberg U.S. Aggregate Bond Index
0.0125
0.0251
2023-05-17
Fund Summary
Fund:
Fidelity® Sustainability Bond Index Fund
Investment Objective
Fidelity® Sustainability Bond Index Fund seeks to provide investment results that correspond to the aggregate price and interest performance of the debt securities in the Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index.
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, which are not reflected in the tables and examples below.
Shareholder fees
0
Annual Operating Expenses
0.0010
0
0.0000
0.0010
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:
10
32
56
128
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
70
% of the average value of its portfolio.
0.70
Principal Investment Strategies
Normally investing at least 80% of assets in bonds included in the Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index.
The Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index is composed of U.S. dollar denominated, investment-grade fixed-rate debt issues, including government, corporate, asset-backed, and mortgage-backed securities, and follows the rules of the Bloomberg U.S. Aggregate Bond Index. MSCI ESG Research applies additional sector and ESG criteria for security eligibility in the index and adjusts the sector weights of the index to match the exposures of the Bloomberg U.S. Aggregate Bond Index. Companies showing involvement above certain thresholds in adult entertainment, alcohol, gambling, tobacco, military weapons, civilian firearms, nuclear power, and genetically modified organisms are excluded. The index is rebalanced monthly.
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.
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 MSCI U.S. Aggregate ESG Choice 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.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
Entities located in foreign countries can be affected by adverse political, regulatory, market, or economic developments in those countries.
Prepayment.
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.
Issuer-Specific Changes.
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.
Correlation to Index.
The performance of the fund and its underlying index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders.
Passive Management Risk.
The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers.
The fund will be concentrated to approximately the same extent that the fund's index concentrates in the securities of issuers in a particular industry or group of industries.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0829
0.0749
-0.0198
-0.1290
0.0543
0.0123
Highest Quarter Return
0.0651
2023-12-31
Lowest Quarter Return
-0.0571
2022-03-31
Year-to-Date Return
0.0601
2025-09-30
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.
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.
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.
Return Before Taxes
0.0123
-0.0041
Return After Taxes on Distributions
-0.0018
-0.0137
Return After Taxes on Distributions and Sale of Fund Shares
0.0075
-0.0069
Bloomberg MSCI U.S. Aggregate ESG Choice Bond Index
0.0127
-0.0030
0.0133
Bloomberg U.S. Aggregate Bond Index
0.0125
-0.0033
0.0132
2018-06-19
Fund Summary
Fund:
Fidelity® Short-Term Bond Index Fund
Investment Objective
Fidelity® Short-Term Bond Index Fund seeks to obtain a high level of current income 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, which are not reflected in the tables and examples below.
Shareholder fees
0
Annual Operating Expenses
0.0003
0
0.0000
0.0003
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:
3
10
17
39
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
55
% of the average value of its portfolio.
0.55
Principal Investment Strategies
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.
Interest Rate Changes.
Interest rate increases can cause the price of a debt security to decrease.
Foreign Exposure.
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.
Prepayment.
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.
Issuer-Specific Changes.
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.
Correlation to Index.
The performance of the fund and its underlying index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders.
Passive Management Risk.
The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers.
Leverage Risk.
Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0114
0.0495
0.0468
-0.0112
-0.0551
0.0490
0.0389
Highest Quarter Return
0.0351
2024-09-30
Lowest Quarter Return
-0.0338
2022-03-31
Year-to-Date Return
0.0482
2025-09-30
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.
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.
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.
Return Before Taxes
0.0389
0.0129
Return After Taxes on Distributions
0.0277
0.0061
Return After Taxes on Distributions and Sale of Fund Shares
0.0235
0.0071
Bloomberg U.S. 1-5 Year Government/Credit Bond Index
0.0376
0.0129
0.0174
Bloomberg U.S. Aggregate Bond Index
0.0125
-0.0033
0.0099
2017-10-18
Fund Summary
Fund /Class:
Fidelity® Conservative Income Bond Fund
/Fidelity® Conservative Income Bond Fund
Investment Objective
Fidelity® Conservative Income Bond Fund seeks to obtain a high level of current income 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
0
Annual Operating Expenses
0.0020
0
0.0010
0.0030
0.0025
2026-12-31
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:
26
90
162
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
73
% of the average value of its portfolio.
0.73
Principal Investment Strategies
Normally investing at least 80% of assets in U.S. dollar-denominated money market and high quality investment-grade debt securities of all types, and repurchase agreements for those securities.
Debt securities, including money market securities, are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, and mortgage and other asset-backed securities. Money market securities include bank certificates of deposit, bankers' acceptances, bank time deposits, notes, commercial paper, and U.S. Government securities.
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.
A repurchase agreement is an agreement to buy a security at one price and a simultaneous agreement to sell it back at an agreed-upon price.
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.
Potentially entering into reverse repurchase agreements.
Managing the fund to have similar overall interest rate risk to the Bloomberg U.S. 3-6 Month Treasury Bill Index.
Normally maintaining a dollar-weighted average maturity of one year or less.
Normally investing in securities with a maximum maturity of four years.
Allocating assets across different market sectors and maturities.
Investing more than 25% of total assets in the financial services industries.
Investing in domestic and foreign issuers.
Analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
Interest Rate Changes.
Interest rate increases can cause the price of a debt or money market security to decrease.
Foreign Exposure.
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.
Financial Services Concentration.
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.
Prepayment.
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.
Issuer-Specific Changes.
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.
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 and an additional index over various periods of time.
The additional index has 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.
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 and an additional index over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.fidelity.com
Year-by-Year Returns
0.0045
0.0105
0.0140
0.0182
0.0299
0.0115
0.0000
0.0126
0.0584
0.0541
Highest Quarter Return
0.0190
2020-06-30
Lowest Quarter Return
-0.0104
2020-03-31
Year-to-Date Return
0.0345
2025-09-30
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.
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.
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.
Return Before Taxes
0.0541
0.0270
0.0212
Return After Taxes on Distributions
0.0333
0.0163
0.0127
Return After Taxes on Distributions and Sale of Fund Shares
0.0329
0.0162
0.0126
Bloomberg U.S. 3-6 Month Treasury Bill Index
0.0533
0.0252
0.0183
Bloomberg U.S. Aggregate Bond Index
0.0125
-0.0033
0.0135