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N-1A
Fidelity Salem Street Trust
Fund Summary
Fund:
Fidelity® Series Large Cap Growth Index Fund
Investment Objective
Fidelity® Series Large Cap Growth Index Fund seeks to provide investment results that correspond to the total return of stocks of large capitalization U.S. companies.
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
34
% of the average value of its portfolio.
0.34
Principal Investment Strategies
Normally investing at least 80% of assets in securities of companies with large market capitalizations included in the Russell 1000® Growth Index.
The Russell 1000 ® Growth Index is a market capitalization-weighted index designed to measure the performance of the large-cap growth segment of the U.S. equity market. It includes those Russell 1000 ® Index companies with higher price-to-book (P/B) ratios and higher forecasted growth rates. The stocks of these companies are often called "growth" stocks.
The Russell 1000® Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
The fund may operate as a non-diversified fund, as defined under the Investment Company Act of 1940 (1940 Act), to the approximate extent the index is non-diversified. The fund may therefore operate as non-diversified solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the index.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
"Growth" Investing.
"Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
In addition, the fund may operate as a non-diversified fund under the 1940 Act to the approximate extent the index is non-diversified. A non-diversified fund may invest a greater portion of its assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.
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
0.3637
0.3834
0.2764
-0.2914
0.4277
0.3337
0.1855
Highest Quarter Return
0.2766
2020-06-30
Lowest Quarter Return
-0.2093
2022-06-30
Year-to-Date Return
-0.0976
2026-03-31
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
0.1855
0.1534
Return After Taxes on Distributions
0.1827
0.1492
Return After Taxes on Distributions and Sale of Fund Shares
0.1117
0.1224
Russell 1000® Growth Index
0.1856
0.1532
0.1786
Russell 1000® Index
0.1737
0.1359
0.1413
2018-08-17
Fund Summary
Fund:
Fidelity® Large Cap Value Index Fund
Investment Objective
Fidelity® Large Cap Value Index Fund seeks to provide investment results that correspond to the total return of stocks of large capitalization U.S. companies.
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
0.00035
0
0.00000
0.00035
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:
4
11
20
45
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
21
% of the average value of its portfolio.
0.21
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Russell 1000® Value Index.
The Russell 1000 ® Value Index is a market capitalization-weighted index designed to measure the performance of the large-cap value segment of the U.S. equity market. It includes those Russell 1000 ® Index companies with lower price-to-book ratios and lower expected growth rates. The stocks of these companies are often called "value" stocks.
The Russell 1000 ® Value Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
"Value" Investing.
"Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
0.1379
-0.0826
0.2651
0.0286
0.2511
-0.0757
0.1150
0.1435
0.1589
Highest Quarter Return
0.1629
2020-12-31
Lowest Quarter Return
-0.2672
2020-03-31
Year-to-Date Return
0.0208
2026-03-31
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
0.1589
0.1131
Return After Taxes on Distributions
0.1547
0.1083
Return After Taxes on Distributions and Sale of Fund Shares
0.0969
0.0893
Russell 1000® Value Index
0.1591
0.1133
0.1030
Russell 1000® Index
0.1737
0.1359
0.1477
2016-06-07
Fund Summary
Fund:
Fidelity® Large Cap Growth Index Fund
Investment Objective
Fidelity® Large Cap Growth Index Fund seeks to provide investment results that correspond to the total return of stocks of large capitalization U.S. companies.
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
0.00035
0
0.00000
0.00035
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:
4
11
20
45
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
16
% of the average value of its portfolio.
0.16
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Russell 1000® Growth Index.
The Russell 1000 ® Growth Index is a market capitalization-weighted index designed to measure the performance of the large-cap growth segment of the U.S. equity market. It includes those Russell 1000 ® Index companies with higher price-to-book (P/B) ratios and higher forecasted growth rates. The stocks of these companies are often called "growth" stocks.
The Russell 1000® Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
The fund may operate as a non-diversified fund, as defined under the Investment Company Act of 1940 (1940 Act), to the approximate extent the index is non-diversified. The fund may therefore operate as non-diversified solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the index.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
"Growth" Investing.
"Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
In addition, the fund may operate as a non-diversified fund under the 1940 Act to the approximate extent the index is non-diversified. A non-diversified fund may invest a greater portion of its assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.
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
0.3012
-0.0164
0.3637
0.3843
0.2758
-0.2917
0.4277
0.3326
0.1853
Highest Quarter Return
0.2776
2020-06-30
Lowest Quarter Return
-0.2093
2022-06-30
Year-to-Date Return
-0.0977
2026-03-31
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
0.1853
0.1530
Return After Taxes on Distributions
0.1844
0.1504
Return After Taxes on Distributions and Sale of Fund Shares
0.1104
0.1227
Russell 1000® Growth Index
0.1856
0.1532
0.1871
Russell 1000® Index
0.1737
0.1359
0.1477
2016-06-07
Fund Summary
Fund:
Fidelity® Mid Cap Index Fund
Investment Objective
Fidelity® Mid Cap Index Fund seeks to provide investment results that correspond to the total return of stocks of mid-capitalization United States companies.
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
0.00025
0
0.00000
0.00025
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
8
14
32
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
12
% of the average value of its portfolio.
0.12
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Russell Midcap® Index.
The Russell Midcap ® Index is a market capitalization-weighted index of medium-capitalization U.S. company stocks.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
0.1386
0.1847
-0.0905
0.3051
0.1711
0.2256
-0.1728
0.1721
0.1535
0.1057
Highest Quarter Return
0.2455
2020-06-30
Lowest Quarter Return
-0.2704
2020-03-31
Year-to-Date Return
0.0130
2026-03-31
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
0.1057
0.0867
0.1101
Return After Taxes on Distributions
0.1028
0.0811
0.1036
Return After Taxes on Distributions and Sale of Fund Shares
0.0646
0.0673
0.0892
Russell Midcap® Index
0.1060
0.0867
0.1101
Russell 3000® Index
0.1715
0.1315
0.1429
Fund Summary
Fund:
Fidelity® Small Cap Index Fund
Investment Objective
Fidelity® Small Cap Index Fund seeks to provide investment results that correspond to the total return of stocks of small-capitalization United States companies.
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
0.00025
0
0.00000
0.00025
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
8
14
32
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
20
% of the average value of its portfolio.
0.20
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Russell 2000® Index.
The Russell 2000 ® Index is a market capitalization-weighted index designed to measure the performance of the small-cap segment of the U.S. equity market.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
0.2163
0.1485
-0.1088
0.2571
0.1999
0.1472
-0.2027
0.1712
0.1169
0.1293
Highest Quarter Return
0.3128
2020-12-31
Lowest Quarter Return
-0.3062
2020-03-31
Year-to-Date Return
0.0091
2026-03-31
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
0.1293
0.0620
0.0976
Return After Taxes on Distributions
0.1259
0.0572
0.0905
Return After Taxes on Distributions and Sale of Fund Shares
0.0781
0.0475
0.0778
Russell 2000® Index
0.1281
0.0609
0.0962
Russell 3000® Index
0.1715
0.1315
0.1429
Fund Summary
Fund:
Fidelity Flex® Mid Cap Index Fund
Investment Objective
Fidelity Flex® Mid Cap Index Fund seeks to provide investment results that correspond to the total return of stocks of mid-capitalization U.S. companies.
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
0.0000
0
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. This example does not include any fees paid at the fee-based account or plan level. 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
89
% of the average value of its portfolio.
0.89
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Fidelity U.S. Mid Cap IndexSM.
The Fidelity U.S. Mid Cap Index SM is a float-adjusted market capitalization-weighted index designed to reflect the performance of stocks of U.S. mid-capitalization companies. It is a subset of the Fidelity U.S. Total Investable Market Index SM (a float-adjusted market capitalization-weighted index designed to reflect the performance for the U.S. equity market, including large-, mid-, and small-capitalization stocks). Mid-capitalization stocks are considered to be stocks whose market capitalization is similar to the market capitalization of companies in the Russell Midcap ® Index or the S&P MidCap 400 ® Index.
The Fidelity U.S. Mid Cap Index SM was created by Fidelity Product Services LLC (FPS) using a rules-based proprietary index methodology that includes all U.S. stocks meeting certain market capitalization, liquidity, and investability requirements.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
Rules-Based Strategy Risk.
Although the index uses a rules-based proprietary index methodology, there is no guarantee that this methodology will be successful.
Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
additional
indexes
over various periods of time.
The additional
indexes have
characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus.
Past performance (before and after taxes) is not an indication of future performance.
The performance shown does not reflect the impact of any fees paid at the fee-based account or plan level.
Prior to August 21, 2025, the fund compared its performance to a different benchmark. The fund's historical performance may not represent its current investment policies.
Visit
www.401k.com and log in or 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
additional
indexes
over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.401k.com and log in or www.fidelity.com
Year-by-Year Returns
-0.0901
0.3056
0.1729
0.2258
-0.1729
0.1730
0.1528
0.1433
Highest Quarter Return
0.2464
2020-06-30
Lowest Quarter Return
-0.2696
2020-03-31
Year-to-Date Return
0.0252
2026-03-31
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
0.1433
0.0941
Return After Taxes on Distributions
0.1433
0.0897
Return After Taxes on Distributions and Sale of Fund Shares
0.0848
0.0733
Fidelity Flex Mid Cap Linked Index℠
0.1432
0.0940
0.1086
Fidelity U.S. Mid Cap Index℠
0.1194
Russell Midcap® Index
0.1060
0.0867
0.1045
Russell 1000® Index
0.1737
0.1359
0.1445
2017-03-09
Effective
August 21, 2025, the fund
began
comparing its performance to the Fidelity U.S. Mid Cap Index
SM
rather than the Russell Midcap
®
Index because the Fidelity U.S. Mid Cap Index
SM
conforms more closely to the fund's investment policies
.
Fund Summary
Fund:
Fidelity Flex® Small Cap Index Fund
Investment Objective
Fidelity Flex® Small Cap Index Fund seeks to provide investment results that correspond to the total return of stocks of small-capitalization U.S. companies.
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
0.0000
0
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. This example does not include any fees paid at the fee-based account or plan level. 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
80
% of the average value of its portfolio.
0.80
Principal Investment Strategies
Normally investing at least 80% of assets in securities included in the Fidelity U.S. Small Cap IndexSM.
The Fidelity U.S. Small Cap Index SM is a float-adjusted market capitalization-weighted index designed to reflect the performance of stocks of U.S. small-capitalization companies. It is a subset of the Fidelity U.S. Total Investable Market Index SM (a float-adjusted market capitalization-weighted index designed to reflect the performance for the U.S. equity market, including large-, mid-, and small-capitalization stocks). Small-capitalization stocks are considered to be stocks whose market capitalization is similar to the market capitalization of companies in the Russell 2000 ® Index or the S&P SmallCap 600 ® Index.
The Fidelity U.S. Small Cap Index SM was created by Fidelity Product Services LLC (FPS) using a rules-based proprietary index methodology that includes all U.S. stocks meeting certain market capitalization, liquidity, and investability requirements.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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.
Rules-Based Strategy Risk.
Although the index uses a rules-based proprietary index methodology, there is no guarantee that this methodology will be successful.
Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
additional
indexes
over various periods of time.
The additional
indexes have
characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus.
Past performance (before and after taxes) is not an indication of future performance.
The performance shown does not reflect the impact of any fees paid at the fee-based account or plan level.
Prior to July 21, 2025, the fund compared its performance to a different benchmark. The fund's historical performance may not represent its current investment policies.
Visit
www.401k.com and log in or 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
additional
indexes
over various periods of time.
Past performance (before and after taxes) is not an indication of future performance.
www.401k.com and log in or www.fidelity.com
Year-by-Year Returns
-0.1103
0.2569
0.2005
0.1486
-0.2029
0.1713
0.1166
0.1202
Highest Quarter Return
0.3126
2020-12-31
Lowest Quarter Return
-0.3054
2020-03-31
Year-to-Date Return
0.0045
2026-03-31
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
0.1202
0.0605
Return After Taxes on Distributions
0.1202
0.0565
Return After Taxes on Distributions and Sale of Fund Shares
0.0711
0.0463
Fidelity Flex Small Cap Linked Index℠
0.1195
0.0593
0.0842
Fidelity U.S. Small Cap Index℠
0.1332
Russell 2000® Index
0.1281
0.0609
0.0852
Russell 3000® Index
0.1715
0.1315
0.1408
2017-03-09
Effective
July 21, 2025, the fund
began
comparing its performance to the Fidelity U.S. Small Cap Index
SM
rather than the Russell 2000
®
Index because the Fidelity U.S. Small Cap Index
SM
conforms more closely to the fund's investment policies.
Fund Summary
Fund:
Fidelity Flex® Mid Cap Focused Index Fund
Investment Objective
Fidelity Flex® Mid Cap Focused Index Fund seeks to provide investment results that correspond to the total return of stocks of mid-capitalization U.S. companies.
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
0.0000
0
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. This example does not include any fees paid at the fee-based account or plan level. 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. For the period from July 24, 2025 to April 30, 2026, the fund's portfolio turnover rate was
135
% (annualized) of the average value of its portfolio.
1.35
Principal Investment Strategies
Normally investing at least 80% of assets in securities of mid-capitalization companies included in the Fidelity U.S. Mid Cap Focused IndexSM.
The Fidelity U.S. Mid Cap Focused Index SM is designed to reflect the performance of stocks of mid-capitalization U.S. companies. Mid-capitalization stocks are considered to be stocks whose market capitalization is similar to the market capitalization of companies in the Russell Midcap ® Index or the S&P MidCap 400 ® Index.
The Fidelity U.S. Mid Cap Focused Index SM was created by Fidelity Product Services LLC (FPS) using a rules-based proprietary index methodology that includes all U.S. stocks meeting certain market capitalization, liquidity and investability requirements.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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
.
Rules-Based Strategy Risk.
Although the index uses a rules-based proprietary index methodology, there is no guarantee that this methodology will be successful.
Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
Performance history will be available for the fund after the fund has been in operation for one calendar year.
Performance history will be available for the fund after the fund has been in operation for one calendar year.
Fund Summary
Fund:
Fidelity Flex® Small Cap Focused Index Fund
Investment Objective
Fidelity Flex® Small Cap Focused Index Fund seeks to provide investment results that correspond to the total return of stocks of small-capitalization U.S. companies.
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
0.0000
0
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. This example does not include any fees paid at the fee-based account or plan level. 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. For the period from July 24, 2025 to April 30, 2026, the fund's portfolio turnover rate was
115
% (annualized) of the average value of its portfolio.
1.15
Principal Investment Strategies
Normally investing at least 80% of assets in securities of small-capitalization companies included in the Fidelity U.S. Small Cap Focused IndexSM.
The Fidelity U.S. Small Cap Focused Index SM is designed to reflect the performance of stocks of small-capitalization companies. Small-capitalization stocks are considered to be stocks whose market capitalization is similar to the market capitalization of companies in the Russell 2000 ® Index or the S&P SmallCap 600 ® Index.
The Fidelity U.S. Small Cap Focused Index SM was created by Fidelity Product Services LLC (FPS) using a rules-based proprietary index methodology that includes all U.S. stocks meeting certain market capitalization, liquidity and investability requirements.
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.
Primarily using replication; however, the fund may or may not hold all of the securities in the index.
Lending securities to earn income for the fund.
Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
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.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
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
.
Rules-Based Strategy Risk.
Although the index uses a rules-based proprietary index methodology, there is no guarantee that this methodology will be successful.
Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
Securities Lending Risk.
Securities lending involves the risk that the borrower may fail to return the securities loaned in a timely manner or at all. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral.
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
Performance history will be available for the fund after the fund has been in operation for one calendar year.
Performance history will be available for the fund after the fund has been in operation for one calendar year.