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 99 % of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in debt securities rated below investment grade (also referred to as high yield debt securities or junk bonds) that Fidelity Management & Research Company LLC (FMR or Adviser) believes have positive environmental, social and governance (ESG) characteristics. 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). Below investment grade debt securities are debt securities that are rated below 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. 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. When assessing the ESG characteristics of a security, 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 rating process to evaluate an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and may also involve a qualitative assessment of an issuer's sustainability practices provided by the Adviser's research team. The Adviser's ESG rating 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 issuers that FMR 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. Using the ICE® BofA® US High Yield Constrained Index as a guide in structuring the fund and selecting its investments as it relates to credit quality distribution and risk characteristics. Potentially investing in securities that have a higher credit quality than securities in the index. Investing in companies in troubled or uncertain financial condition. Investing in domestic and foreign issuers. In addition to the ESG rating process, using a proprietary multifactor quantitative model and fundamental analysis to screen over 1,000 bonds. The multifactor quantitative model uses a value and quality factor-based methodology to identify bonds with strong return potential and low probability of default. FMR also uses fundamental analysis of factors such as each issuer's financial condition and industry position, as well as economic and market conditions, to select investments. 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.

Performance Narrative [Text Block]

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

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

6.95%

Lowest Quarterly Return, Date

Sep. 30, 2023

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

6.26%

3.01%

^[1]

Prospectus Line Items

Average Annual Return, Percent

5.34%

3.16%

^[1]

Prospectus Line Items

Average Annual Return, Percent

8.50%

5.61%

Prospectus Line Items

Average Annual Return, Percent

8.66%

5.46%

Prospectus Line Items

Average Annual Return, Percent

7.58%

1.46%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.35%

Expense Example, with Redemption, 3 Years

113

Expense Example, with Redemption, 10 Years

$ 443

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

9.02%

7.49%

11.64%

(11.58%)

4.69%

10.64%

17.54%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in debt securities rated below investment grade (also referred to as high yield debt securities or junk bonds). 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). Below investment grade debt securities are debt securities that are rated below 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. 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 the ICE® BofA® BB-B US High Yield Constrained Index as a guide in structuring the fund and selecting its investments as it relates to credit quality distribution and risk characteristics. Normally investing primarily in securities rated BB or B by Standard & Poor's (S&P), Ba or B by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management & Research Company LLC (FMR) to be of comparable quality. Potentially investing in securities that have a higher or lower credit quality. Investing in companies in troubled or uncertain financial condition. Investing in domestic and foreign issuers. Generally utilizing a research-driven approach identifying long-term drivers of high yield debt security returns that may include, but are not limited to, valuation, quality, momentum, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of high yield debt securities that may have the potential to provide a higher total return than that of the ICE® BofA BB-B US High Yield Constrained Index.

Performance Narrative [Text Block]

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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

10.91%

Lowest Quarterly Return, Date

Jun. 30, 2022

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

6.11%

1.33%

3.37%

^[2]

Prospectus Line Items

Average Annual Return, Percent

5.27%

1.83%

3.43%

^[2]

Prospectus Line Items

Average Annual Return, Percent

7.58%

0.06%

2.45%

Prospectus Line Items

Average Annual Return, Percent

8.73%

4.11%

5.20%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.59%

Expense Example, with Redemption, 3 Years

189

Expense Example, with Redemption, 10 Years

$ 738

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

6.13%

8.73%

11.09%

(16.99%)

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 19 % of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in preferred securities and other income-producing securities. Preferred securities include preferred stock, hybrid or trust preferred securities, fixed and floating rate preferred securities, listed and unlisted preferred securities, and preferred securities of all par values. Income-producing securities are securities that pay, or are expected to pay within the next three months, dividends or interest. 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 in all types of preferred securities and other income-producing securities such as contingent convertible securities and corporate hybrid securities. Normally investing primarily in securities rated at least BB by Standard & Poor's (S&P), Ba by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management & Research Company LLC (FMR) to be of comparable quality. Securities rated below BBB by S&P and below Baa3 by Moody's are less than investment-grade quality (also referred to as high yield debt securities or junk bonds). Investing in securities of domestic and foreign issuers. Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. Concentrating investments in securities of issuers principally engaged in the business activities of the industries in the financial services sector.

Performance Narrative [Text Block]

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

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

6.71%

Lowest Quarterly Return, Date

Jun. 30, 2022

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

4.23%

0.06%

^[3]

Prospectus Line Items

Average Annual Return, Percent

3.87%

0.69%

^[3]

Prospectus Line Items

Average Annual Return, Percent

7.58%

0.39%

Prospectus Line Items

Average Annual Return, Percent

6.77%

2.15%

Prospectus Line Items

Average Annual Return, Percent

6.77%

2.04%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.39%

Expense Example, with Redemption, 3 Years

125

Expense Example, with Redemption, 10 Years

$ 493

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

34.38%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 130% of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in securities of issuers and in depositary receipts representing securities of issuers in emerging markets and other investments that are tied economically to emerging markets. 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. The Adviser considers a number of factors to determine whether an issuer is located in or tied economically to a particular country or region including: whether a third-party vendor has assigned a particular country or region classification to the issuer or included the issuer in an index representative of a particular country or region; the issuer's domicile, incorporation, and location of assets; whether the issuer derives at least 50% of its revenues from, or has at least 50% of its assets in, a particular country or region; the source of government guarantees (if any); and the primary trading market or listing exchange. Whether an issuer is located in or tied economically to a particular country can be determined under any of these factors. 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 common stocks.Allocating investments across different emerging markets countries.Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the MSCI Emerging Markets Index.

Performance Narrative [Text Block]

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 over various periods of time. The index description appears 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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

12.87%

Lowest Quarterly Return, Date

Mar. 31, 2025

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

33.67%

28.24%

^[4]

Prospectus Line Items

Average Annual Return, Percent

20.71%

22.00%

^[4]

Prospectus Line Items

Average Annual Return, Percent

33.53%

27.72%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.28%

Expense Example, with Redemption, 3 Years

90

Expense Example, with Redemption, 10 Years

$ 356

Average Annual Return, Percent

37.25%

10.83%

8.97%

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Enhanced International ETF

Objective, Primary [Text Block]

Fidelity® Enhanced International ETF seeks capital appreciation.

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

98.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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 over various periods of time.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

11.53%

Highest Quarterly Return, Date

Dec. 31, 2022

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(22.78%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

MSCI EAFE Index

Management Fees (as a percentage of Assets)

0.18%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 18

Expense Example, with Redemption, 5 Years

101

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

17.13%

25.33%

26.08%

(16.20%)

30.36%

18.05%

27.66%

(3.35%)

21.65%

10.86%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 77% of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in common stocks included in the S&P 500® Index. The S&P 500® Index is a market capitalization-weighted index of 500 common stocks that represents the performance of the large-capitalization segment of the U.S. 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. Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the S&P 500® Index.

Performance Narrative [Text Block]

Effective November 17, 2023, Fidelity® Large Cap Core Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period. 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 over various periods of time. The index description appears 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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

19.39%

Lowest Quarterly Return, Date

Mar. 31, 2020

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

16.85%

13.98%

13.75%

Prospectus Line Items

Average Annual Return, Percent

10.31%

11.74%

12.03%

Prospectus Line Items

Average Annual Return, Percent

17.88%

14.42%

14.82%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.18%

Expense Example, with Redemption, 3 Years

58

Expense Example, with Redemption, 10 Years

$ 230

Average Annual Return, Percent

18.56%

16.16%

17.47%

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Enhanced Large Cap Growth ETF

Objective, Primary [Text Block]

Fidelity® Enhanced Large Cap Growth ETF seeks capital appreciation.

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

71.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

8.37%

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(19.59%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

Russell 1000® Growth Index

Average Annual Return, Label [Optional Text]

Russell 1000® Index

Management Fees (as a percentage of Assets)

0.18%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 18

Expense Example, with Redemption, 5 Years

101

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

15.95%

15.88%

10.77%

(6.47%)

28.30%

4.43%

24.16%

(7.53%)

15.88%

16.32%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 72% of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in common stocks 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. 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. Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 1000® Value Index.

Performance Narrative [Text Block]

Effective November 17, 2023, Fidelity® Large Cap Value Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period. 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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

16.70%

Lowest Quarterly Return, Date

Mar. 31, 2020

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

15.44%

10.97%

10.00%

Prospectus Line Items

Average Annual Return, Percent

9.73%

9.44%

8.85%

Prospectus Line Items

Average Annual Return, Percent

17.37%

13.59%

14.59%

Prospectus Line Items

Average Annual Return, Percent

15.91%

11.33%

10.53%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.23%

Expense Example, with Redemption, 3 Years

74

Expense Example, with Redemption, 10 Years

$ 293

Average Annual Return, Percent

12.13%

10.90%

11.33%

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Enhanced Mid Cap Core ETF

Objective, Primary [Text Block]

Fidelity® Enhanced Mid Cap Core ETF seeks capital appreciation.

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

78.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

11.96%

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(27.29%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

Russell Midcap® Index

Average Annual Return, Label [Optional Text]

Russell 3000® Index

Management Fees (as a percentage of Assets)

0.23%

Other Expenses (as a percentage of Assets):

^[5]

0.00%

Expense Example, with Redemption, 1 Year

$ 24

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Enhanced Mid Cap Growth ETF

Objective, Primary [Text Block]

Fidelity® Enhanced Mid Cap Growth ETF seeks capital appreciation.

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

53.00%

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in common stocks included in the Russell Midcap® Growth Index. The Russell Midcap® Growth Index is a market capitalization-weighted index designed to measure the performance of the mid-cap growth segment of the U.S. equity market. It includes those Russell MidCap® Index companies with higher price-to-book ratios and higher forecasted growth values. The Russell Midcap® 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. Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell Midcap® Growth Index.

Performance Narrative [Text Block]

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Management Fees (as a percentage of Assets)

0.23%

Other Expenses (as a percentage of Assets):

^[6]

0.00%

Expense Example, with Redemption, 1 Year

$ 24

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Enhanced Mid Cap Value ETF

Objective, Primary [Text Block]

Fidelity® Enhanced Mid Cap Value ETF seeks capital appreciation.

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

30.00%

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in common stocks included in the Russell Midcap® Value Index. The Russell Midcap® Value Index is a market capitalization-weighted index designed to measure the performance of the mid-cap value segment of the U.S. equity market. It includes those Russell MidCap® Index companies with lower price-to-book ratios and lower forecasted growth values. The Russell Midcap® 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. Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell Midcap® Value Index.

Performance Narrative [Text Block]

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Management Fees (as a percentage of Assets)

0.28%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 29

Expense Example, with Redemption, 5 Years

157

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

17.70%

16.48%

21.04%

(18.28%)

20.54%

18.53%

23.65%

(13.04%)

7.22%

22.84%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 54% of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in common stocks 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. Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 2000® Index.

Performance Narrative [Text Block]

Effective November 17, 2023, Fidelity® Small Cap Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period. 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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

31.84%

Lowest Quarterly Return, Date

Mar. 31, 2020

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

17.39%

8.93%

9.30%

Prospectus Line Items

Average Annual Return, Percent

10.58%

7.84%

8.34%

Prospectus Line Items

Average Annual Return, Percent

17.15%

13.15%

14.29%

Prospectus Line Items

Average Annual Return, Percent

12.81%

6.09%

9.62%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.28%

Expense Example, with Redemption, 3 Years

$ 90

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 42% of the average value of its portfolio.

Other Expenses, New Fund, Based on Estimates [Text]

Based on estimated amounts for the current fiscal year.

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance One Year or Less [Text]

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.28%

Expense Example, with Redemption, 3 Years

$ 90

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 36% of the average value of its portfolio.

Other Expenses, New Fund, Based on Estimates [Text]

Based on estimated amounts for the current fiscal year.

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance One Year or Less [Text]

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.18%

Expense Example, with Redemption, 3 Years

58

Expense Example, with Redemption, 10 Years

$ 230

Average Annual Return, Label [Optional Text]

Return Before Taxes

Annual Return [Percent]

17.89%

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 66% of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in U.S. equity securities. Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. The Adviser considers a number of factors to determine whether an issuer is located in or tied economically to a particular country or region including: whether a third-party vendor has assigned a particular country or region classification to the issuer or included the issuer in an index representative of a particular country or region; the issuer's domicile, incorporation, and location of assets; whether the issuer derives at least 50% of its revenues from, or has at least 50% of its assets in, a particular country or region; the source of government guarantees (if any); and the primary trading market or listing exchange. Whether an issuer is located in or tied economically to a particular country can be determined under any of these factors. 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 common stocks.Investing assets across market cap ranges in large cap, mid cap, and small cap stocks.Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 3000® Index.

Performance Narrative [Text Block]

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 over various periods of time. The index description appears 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.

Performance Availability Website Address [Text]

www.fidelity.com

Bar Chart [Heading]

Year-by-Year Returns

Bar Chart, Year to Date Return, Date

Sep. 30, 2026

Highest Quarterly Return, Label [Optional Text]

Highest Quarter Return

Highest Quarterly Return

11.23%

Lowest Quarterly Return, Date

Mar. 31, 2025

Performance Table Heading

Average Annual Returns

Performance Table Not Relevant to Tax Deferred

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).

Performance Table Narrative

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.

Prospectus Line Items

Average Annual Return, Percent

17.60%

14.72%

^[9]

Prospectus Line Items

Average Annual Return, Percent

10.76%

11.42%

^[9]

Prospectus Line Items

Average Annual Return, Percent

17.15%

14.44%

Prospectus Line Items

Distribution and Service (12b-1) Fees

0.00%

Expenses (as a percentage of Assets)

0.45%

Expense Example, with Redemption, 3 Years

144

Expense Example, with Redemption, 10 Years

$ 567

Prospectus Line Items

Objective [Heading]

Investment Objective

Expense Heading [Optional Text]

Fee Table

Shareholder Fees Caption [Optional Text]

Shareholder fees

Operating Expenses Caption [Optional Text]

Annual Operating Expenses

Portfolio Turnover [Text Block]

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 February 10, 2026 to August 31, 2026, the fund's portfolio turnover rate was 46 % (annualized) of the average value of its portfolio.

Expense Example Narrative [Text Block]

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:

Strategy Narrative [Text Block]

Normally investing at least 80% of assets in collateralized loan obligations (CLOs). CLOs are a type of asset-backed security. A CLO is typically collateralized by a pool of loans, which may include domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans, and including "covenant lite" loans, which have few or no financial maintenance covenants. CLOs may charge management fees and other expenses. Cash flows from the CLO are split into two or more portions, called tranches, which can vary in risk and yield. A CLO's more senior tranches are partially protected from defaults, typically have higher ratings and lower yields than their underlying securities and can be rated investment grade. More junior tranches offer the potential for higher yield but are more exposed to loss and have lower ratings. 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 a majority of the fund's assets in CLOs rated from BBB+ to B- or the equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. Investing up to 30% of the fund's assets in CLOs rated above BBB+. Purchasing CLOs in both the primary market and the secondary market. Investing no more than 10% of assets in fixed-rate CLOs. Investing up to 25% in non-U.S. dollar-denominated CLOs and, from time to time, hedging the fund's foreign currency exposures utilizing forward foreign currency exchange contracts. Investing in cash or other short-term instruments, such as money market instruments or money market funds, while seeking to deploy new capital, or for liquidity management purposes, managing redemptions, or for defensive purposes, including navigating unusual market conditions. Investing up to 20% of the fund's net assets in securities 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 - to adjust the fund's risk exposure - as well as forward foreign currency exchange contracts for both hedging and non-hedging purposes.

Performance Narrative [Text Block]

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Management Fees (as a percentage of Assets)

0.39%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 40

Expense Example, with Redemption, 5 Years

219

Annual Return, Inception Date

Oct. 05, 2021

Average Annual Return, Percent

52.58%

(3.86%)

^[10]

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Clean Energy ETF

Objective, Primary [Text Block]

Fidelity® Clean Energy ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Clean Energy Index ℠ .

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

41.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

5.39%

Highest Quarterly Return, Date

Sep. 30, 2025

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(23.16%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

Fidelity Clean Energy Index℠

Average Annual Return, Label [Optional Text]

MSCI ACWI (All Country World Index) Index

Management Fees (as a percentage of Assets)

0.39%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 40

Expense Example, with Redemption, 5 Years

219

Annual Return, Inception Date

Oct. 05, 2021

Average Annual Return, Percent

8.39%

4.17%

^[11]

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Cloud Computing ETF

Objective, Primary [Text Block]

Fidelity® Cloud Computing ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Cloud Computing Index ℠ .

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

39.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

50.01%

Highest Quarterly Return, Date

Jun. 30, 2025

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(23.87%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

MSCI ACWI (All Country World Index) Index

Average Annual Return, Label [Optional Text]

Fidelity Cloud Computing Index℠

Management Fees (as a percentage of Assets)

0.39%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 40

Expense Example, with Redemption, 5 Years

219

Annual Return, Inception Date

Apr. 19, 2022

Average Annual Return, Percent

19.62%

12.11%

^[12]

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Crypto Industry and Digital Payments ETF

Objective, Primary [Text Block]

Fidelity® Crypto Industry and Digital Payments ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Crypto Industry and Digital Payments Index ℠ .

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

59.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

10.34%

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(25.44%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

MSCI ACWI (All Country World Index) Index

Average Annual Return, Label [Optional Text]

Fidelity Crypto Industry and Digital Payments Index℠

Management Fees (as a percentage of Assets)

0.39%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 40

Expense Example, with Redemption, 5 Years

219

Annual Return, Inception Date

Oct. 05, 2021

Average Annual Return, Percent

24.13%

(9.10%)

^[13]

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Electric Vehicles and Future Transportation ETF

Objective, Primary [Text Block]

Fidelity® Electric Vehicles and Future Transportation ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Electric Vehicles and Future Transportation Index ℠ .

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

51.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

(1.20%)

Highest Quarterly Return, Date

Mar. 31, 2023

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(24.13%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

MSCI ACWI (All Country World Index) Index

Average Annual Return, Label [Optional Text]

Fidelity Electric Vehicles and Future Transportation Index℠

Management Fees (as a percentage of Assets)

0.39%

Other Expenses (as a percentage of Assets):

0.00%

Expense Example, with Redemption, 1 Year

$ 40

Expense Example, with Redemption, 5 Years

219

Annual Return, Inception Date

Apr. 19, 2022

Average Annual Return, Percent

22.07%

10.63%

^[14]

Risk/Return [Heading]

Fund Summary Fund: Fidelity® Metaverse ETF

Objective, Primary [Text Block]

Fidelity® Metaverse ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Metaverse Index ℠ .

Expense Narrative [Text Block]

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 Fee, Other

$ 0

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

33.00%

Strategy [Heading]

Principal Investment Strategies

Bar Chart and Performance Table [Heading]

Performance

Performance Information Illustrates Variability of Returns [Text]

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.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) is not an indication of future performance.

Year to Date Return, Label [Optional Text]

Year-to-Date Return

Bar Chart, Year to Date Return

8.23%

Highest Quarterly Return, Date

Jun. 30, 2025

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter Return

Lowest Quarterly Return

(6.86%)

Performance Table Uses Highest Federal Rate

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.

Performance Table Explanation after Tax Higher

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.

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions

Average Annual Return, Label [Optional Text]

Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Return, Label [Optional Text]

MSCI ACWI (All Country World Index) Index

Average Annual Return, Label [Optional Text]

Fidelity Metaverse Index℠

Document Type

485BPOS