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    <dei:TradingSymbol contextRef="C000171935_ClassMember" id="ixv-115">FVAL</dei:TradingSymbol>
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    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171935_ClassMember" id="ixv-136">This annual shareholder report contains information about Fidelity&#xae; Value Factor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171935_ClassMember" id="ixv-138">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171935_ClassMember" id="ixv-143">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171935_ClassMember" id="ixv-145">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171935_ClassMember" id="ixv-148">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171935_ClassMember" id="ixv-151">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171935_ClassMember" id="ixv-158">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Value Factor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
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      contextRef="C000171935_ClassMember"
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      id="ixv-135579"
      unitRef="usd">17</oef:ExpensesPaidAmt>
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    <oef:FactorsAffectingPerfTextBlock contextRef="C000171935_ClassMember" id="ixv-201">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained 25% and contributed most to the fund's performance for the fiscal year. Health care, which gained 60%, also helped, as did financials, which advanced 22%. The industrials sector rose 30%, while consumer discretionary gained 25% and communication services advanced 22%. Other contributors included the energy (+39%), materials (+28%), real estate (+20%), utilities (+16%) and consumer staples (+4%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Micron Technology (+663%), from the semiconductors &amp;amp; semiconductor equipment category. Within the same category, NVIDIA (+13%) helped. In media &amp;amp; entertainment, Alphabet (+86%) boosted the fund. Apple (+50%), from the technology hardware &amp;amp; equipment group, helped. Lastly, in pharmaceuticals, biotechnology &amp;amp; life sciences, Eli Lilly (+63%) also lifted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, the biggest detractor was Meta Platforms (-27%), from the media &amp;amp; entertainment group. Lastly, Microsoft (-11%), Accenture (-35%), Adobe (-30%) and Salesforce (-28%), within the software &amp;amp; services industry, also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171935_ClassMember" id="ixv-219">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Value Factor ETF


$10,000

$11,866


$13,777


$14,322


$14,769


$21,055


$20,241


$22,736


$26,698


$29,826


$37,724



Fidelity U.S. Value Factor Index&#x2120;


$10,000

$11,901


$13,865


$14,454


$14,942


$21,371


$20,600


$23,204


$27,287


$30,531


$38,653



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
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      unitRef="usd">13865</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135595"
      unitRef="usd">14454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135596"
      unitRef="usd">14942</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135597"
      unitRef="usd">21371</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135598"
      unitRef="usd">20600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135599"
      unitRef="usd">23204</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135600"
      unitRef="usd">27287</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135601"
      unitRef="usd">30531</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135602"
      unitRef="usd">38653</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171935_LG_2_AdditionalIndexMember_11YR"
      id="ixv-336">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-135603"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-135604"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-135605"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135606"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135607"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135608"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135609"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135610"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135611"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135612"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171935_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135613"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171935_ClassMember" id="ixv-437">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Value Factor ETF - NAV &#160;A&#160;

26.48%

12.37%

14.37%


Fidelity U.S. Value Factor Index&#x2120; &#160;A

26.60%


12.58%


14.65%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-135614"
      unitRef="pure">0.2648</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-135615"
      unitRef="pure">0.1237</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-135616"
      unitRef="pure">0.1437</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135617"
      unitRef="pure">0.2660</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135618"
      unitRef="pure">0.1258</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135619"
      unitRef="pure">0.1465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135620"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135621"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171935_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135622"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171935_Perf_2016-09-12_ClassMember"
      id="ixv-511">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171935_ClassMember" id="ixv-521">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171935_ClassMember" id="ixv-533">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171935_ClassMember" id="ixv-537">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171935_ClassMember" id="ixv-543">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,330,506,225&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;128&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,705,326&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;47&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171935_InstantMember"
      decimals="0"
      id="ixv-135623"
      unitRef="usd">1330506225</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171935_InstantMember"
      decimals="INF"
      id="ixv-135624"
      unitRef="holding">128</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171935_ClassMember"
      decimals="0"
      id="ixv-135625"
      unitRef="usd">1705326</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171935_ClassMember"
      decimals="INF"
      id="ixv-135626"
      unitRef="pure">0.47</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171935_ClassMember" id="ixv-618">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

31.3

&#160;


Financials

13.1

&#160;


Health Care

10.1

&#160;


Consumer Discretionary

9.5

&#160;


Industrials

9.3

&#160;


Communication Services

8.6

&#160;


Consumer Staples

4.3

&#160;


Energy

3.3

&#160;


Real Estate

2.0

&#160;


Utilities

2.0

&#160;


Materials

1.8

&#160;


&#160;




Common Stocks

95.3


Short-Term Investments and Net Other Assets (Liabilities)

4.7




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 95.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 4.7


&#160;






United States

99.8


Australia

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 99.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171935_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-135627"
      unitRef="pure">0.313</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-135628"
      unitRef="pure">0.131</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-135629"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-135630"
      unitRef="pure">0.095</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-135631"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-135632"
      unitRef="pure">0.086</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-135633"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-135634"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-135635"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-135636"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-135637"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135638"
      unitRef="pure">0.953</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135639"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_GD_US_Member"
      decimals="INF"
      id="ixv-135640"
      unitRef="pure">0.998</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_GD_AU_Member"
      decimals="INF"
      id="ixv-135641"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171935_ClassMember" id="ixv-853">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

7.3


&#160;


Apple Inc

6.8


&#160;


Microsoft Corp

5.2


&#160;


Alphabet Inc Class A

5.2


&#160;


Amazon.com Inc

4.2


&#160;


Broadcom Inc

3.3


&#160;


Micron Technology Inc

2.6


&#160;


Meta Platforms Inc Class A

1.9


&#160;


Berkshire Hathaway Inc Class B

1.9


&#160;


Eli Lilly &amp; Co

1.7


&#160;


&#160;

40.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171935_TH_0_Member"
      decimals="INF"
      id="ixv-135642"
      unitRef="pure">0.073</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_1_Member"
      decimals="INF"
      id="ixv-135643"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_2_Member"
      decimals="INF"
      id="ixv-135644"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_3_Member"
      decimals="INF"
      id="ixv-135645"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_4_Member"
      decimals="INF"
      id="ixv-135646"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_5_Member"
      decimals="INF"
      id="ixv-135647"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_6_Member"
      decimals="INF"
      id="ixv-135648"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_7_Member"
      decimals="INF"
      id="ixv-135649"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_8_Member"
      decimals="INF"
      id="ixv-135650"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171935_TH_9_Member"
      decimals="INF"
      id="ixv-135651"
      unitRef="pure">0.017</oef:PctOfNav>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-1024">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000218700_ClassMember" id="ixv-1028">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000218700_ClassMember" id="ixv-1039">Fidelity&#xae; U.S. Multifactor ETF</oef:FundName>
    <oef:ClassName contextRef="C000218700_ClassMember" id="ixv-1042">Fidelity&#xae; U.S. Multifactor ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000218700_ClassMember" id="ixv-1046">FLRG</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000218700_ClassMember" id="ixv-135652">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000218700_ClassMember" id="ixv-1067">This annual shareholder report contains information about Fidelity&#xae; U.S. Multifactor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000218700_ClassMember" id="ixv-1069">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000218700_ClassMember" id="ixv-1074">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000218700_ClassMember" id="ixv-1076">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000218700_ClassMember" id="ixv-1079">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000218700_ClassMember" id="ixv-1082">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000218700_ClassMember" id="ixv-1089">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; U.S. Multifactor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000218700_ClassMember"
      decimals="0"
      id="ixv-135653"
      unitRef="usd">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000218700_ClassMember"
      decimals="INF"
      id="ixv-135654"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000218700_ClassMember" id="ixv-1132">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained 21% and contributed most to the fund's performance for the fiscal year, driven by the technology hardware &amp;amp; equipment industry (+67%). Health care stocks also helped (+33%), benefiting from the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+36%). Communication services rose approximately 19%, boosted by the media &amp;amp; entertainment industry (+23%), industrials gained approximately 17%, lifted by the capital goods industry (+45%), and financials advanced roughly 11%. Other contributors included the energy (+41%), materials (+46%), consumer staples (+8%) and real estate (+12%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, consumer discretionary returned roughly -8% and detracted most. Utilities (-23%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Alphabet (+86%), from the media &amp;amp; entertainment industry. Apple (+49%), from the technology hardware &amp;amp; equipment category, helped. Lastly, Micron Technology (+92%), Nvidia (+13%) and Broadcom (+34%), within the semiconductors &amp;amp; semiconductor equipment group, also boosted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, the biggest detractor was Meta Platforms (-27%), from the media &amp;amp; entertainment group. Microsoft, within the software &amp;amp; services industry, returned about -12% and hurt the fund. Corcept Therapeutics, within the pharmaceuticals, biotechnology &amp;amp; life sciences group, returned -48% and hindered the fund. H&amp;amp;R Block (-43%), a stock in the consumer services category, hurt the fund's performance. Lastly, in utilities, NRG Energy returned -25% and also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000218700_ClassMember" id="ixv-1153">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 15, 2020 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; U.S. Multifactor ETF


$10,000

$12,994


$12,651


$14,015


$17,303


$19,579


$22,787



Fidelity U.S. Multifactor Index&#x2120;


$10,000

$13,032


$12,726


$14,143


$17,465


$19,793


$23,071



Russell 1000&#xae; Index


$10,000

$13,219


$12,310


$13,904


$16,894


$19,688


$23,417



&#160;

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000218700_LG_ClassMember_7YR" id="ixv-1172">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; U.S. Multifactor ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-135655"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135656"
      unitRef="usd">12994</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-135657"
      unitRef="usd">12651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-135658"
      unitRef="usd">14015</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-135659"
      unitRef="usd">17303</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-135660"
      unitRef="usd">19579</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-135661"
      unitRef="usd">22787</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218700_LG_1_AdditionalIndexMember_7YR"
      id="ixv-1205">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity U.S. Multifactor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135662"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135663"
      unitRef="usd">13032</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135664"
      unitRef="usd">12726</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135665"
      unitRef="usd">14143</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135666"
      unitRef="usd">17465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135667"
      unitRef="usd">19793</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135668"
      unitRef="usd">23071</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218700_LG_2_AdditionalIndexMember_7YR"
      id="ixv-1238">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135669"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135670"
      unitRef="usd">13219</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135671"
      unitRef="usd">12310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135672"
      unitRef="usd">13904</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135673"
      unitRef="usd">16894</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135674"
      unitRef="usd">19688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218700_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135675"
      unitRef="usd">23417</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000218700_ClassMember" id="ixv-1311">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; U.S. Multifactor ETF - NAV &#160;A&#160;

16.39%

11.89%

15.04%


Fidelity U.S. Multifactor Index&#x2120; &#160;A

16.56%


12.10%


15.29%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.58%




A&#160; &#160;From September 15, 2020

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-135676"
      unitRef="pure">0.1639</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-135677"
      unitRef="pure">0.1189</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-135678"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135679"
      unitRef="pure">0.1656</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135680"
      unitRef="pure">0.1210</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135681"
      unitRef="pure">0.1529</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135682"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135683"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218700_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135684"
      unitRef="pure">0.1558</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000218700_Perf_2020-09-15_ClassMember"
      id="ixv-1385">2020-09-15</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000218700_ClassMember" id="ixv-1395">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000218700_ClassMember" id="ixv-1407">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000218700_ClassMember" id="ixv-1411">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000218700_ClassMember" id="ixv-1417">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;290,445,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;102&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;412,492&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;42&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000218700_InstantMember"
      decimals="0"
      id="ixv-135685"
      unitRef="usd">290445978</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000218700_InstantMember"
      decimals="INF"
      id="ixv-135686"
      unitRef="holding">102</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000218700_ClassMember"
      decimals="0"
      id="ixv-135687"
      unitRef="usd">412492</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000218700_ClassMember"
      decimals="INF"
      id="ixv-135688"
      unitRef="pure">0.42</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000218700_ClassMember" id="ixv-1492">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

34.6

&#160;


Financials

12.8

&#160;


Industrials

10.2

&#160;


Health Care

9.8

&#160;


Communication Services

9.2

&#160;


Consumer Discretionary

9.1

&#160;


Consumer Staples

4.6

&#160;


Energy

3.5

&#160;


Materials

2.2

&#160;


Real Estate

2.0

&#160;


Utilities

1.9

&#160;


&#160;




Common Stocks

99.9


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






United States

97.7


Puerto Rico

1.0


Bermuda

0.8


Switzerland

0.3


Thailand

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 97.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Puerto Rico - 1.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bermuda - 0.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Switzerland - 0.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Thailand - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
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      contextRef="C000218700_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-135689"
      unitRef="pure">0.346</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-135690"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-135691"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-135692"
      unitRef="pure">0.098</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-135693"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-135694"
      unitRef="pure">0.091</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-135695"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-135696"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-135697"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-135698"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-135699"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135700"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135701"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_GD_US_Member"
      decimals="INF"
      id="ixv-135702"
      unitRef="pure">0.977</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_GD_PR_Member"
      decimals="INF"
      id="ixv-135703"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_GD_BM_Member"
      decimals="INF"
      id="ixv-135704"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_GD_CH_Member"
      decimals="INF"
      id="ixv-135705"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_GD_TH_Member"
      decimals="INF"
      id="ixv-135706"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000218700_ClassMember" id="ixv-1766">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

7.2


&#160;


Apple Inc

6.7


&#160;


Alphabet Inc Class A

5.5


&#160;


Microsoft Corp

5.1


&#160;


Broadcom Inc

3.0


&#160;


Meta Platforms Inc Class A

1.8


&#160;


Micron Technology Inc

1.8


&#160;


Visa Inc Class A

1.7


&#160;


ExxonMobil Holdings Corp

1.7


&#160;


Johnson &amp; Johnson

1.6


&#160;


&#160;

36.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000218700_TH_0_Member"
      decimals="INF"
      id="ixv-135707"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_1_Member"
      decimals="INF"
      id="ixv-135708"
      unitRef="pure">0.067</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_2_Member"
      decimals="INF"
      id="ixv-135709"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_3_Member"
      decimals="INF"
      id="ixv-135710"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_4_Member"
      decimals="INF"
      id="ixv-135711"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_5_Member"
      decimals="INF"
      id="ixv-135712"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_6_Member"
      decimals="INF"
      id="ixv-135713"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_7_Member"
      decimals="INF"
      id="ixv-135714"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_8_Member"
      decimals="INF"
      id="ixv-135715"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218700_TH_9_Member"
      decimals="INF"
      id="ixv-135716"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000218700_ClassMember" id="ixv-1891">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000218700_ClassMember" id="ixv-1897">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000218700_ClassMember" id="ixv-1899">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000218700_ClassMember" id="ixv-1902">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000218700_ClassMember" id="ixv-1906">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000218700_ClassMember" id="ixv-1917">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-1975">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:FundName contextRef="C000215140_ClassMember" id="ixv-1987">Fidelity&#xae; Stocks for Inflation ETF</oef:FundName>
    <oef:ClassName contextRef="C000215140_ClassMember" id="ixv-1990">Fidelity&#xae; Stocks for Inflation ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000215140_ClassMember" id="ixv-1994">FCPI</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000215140_ClassMember" id="ixv-135717">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000215140_ClassMember" id="ixv-2015">This annual shareholder report contains information about Fidelity&#xae; Stocks for Inflation ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000215140_ClassMember" id="ixv-2017">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000215140_ClassMember" id="ixv-2022">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000215140_ClassMember" id="ixv-2024">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000215140_ClassMember" id="ixv-2027">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000215140_ClassMember" id="ixv-2030">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000215140_ClassMember" id="ixv-2037">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Stocks for Inflation ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000215140_ClassMember"
      decimals="0"
      id="ixv-135718"
      unitRef="usd">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000215140_ClassMember"
      decimals="INF"
      id="ixv-135719"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000215140_ClassMember" id="ixv-2080">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:45px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:45px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained roughly 31% and contributed most to the fund's performance for the fiscal year. Health care stocks also helped (+22%), benefiting from strong results in the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+35%). Energy rose about 29%, materials gained 9%, and industrials advanced 23%. Other contributors included the financials (+12%), communication services (+18%), consumer staples (+7%) and real estate (+14%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:45px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, utilities returned -21% and detracted most. Consumer discretionary (-1%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:45px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Apple (+49%), from the technology hardware &amp;amp; equipment group. Newmont (+35%), a stock in the materials sector, contributed. Micron Technology (+588%), from the semiconductors &amp;amp; semiconductor equipment industry, helped. Alphabet (+87%), a stock in the media &amp;amp; entertainment industry, boosted the fund. Lastly, United Therapeutics (+88%), from the pharmaceuticals, biotechnology &amp;amp; life sciences category, also helped.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:45px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, the biggest detractor was AngloGold Ashanti (-28%), from the materials sector. Doximity, within the health care equipment &amp;amp; services category, returned about -57% and hurt the fund. NRG Energy (-19%), a stock in the utilities sector, hindered the fund. Microsoft (-11%), from the software &amp;amp; services industry, hurt the fund. Lastly, in pharmaceuticals, biotechnology &amp;amp; life sciences, Corcept Therapeutics (-48%) also detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000215140_ClassMember" id="ixv-2101">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
November 5, 2019 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Stocks for Inflation ETF


$10,000

$9,812


$12,930


$13,580


$14,635


$18,380


$21,224


$25,012



Fidelity Stocks for Inflation Factor Index&#x2120;


$10,000

$9,844


$13,016


$13,712


$14,821


$18,629


$21,551


$25,439



Russell 1000&#xae; Index


$10,000

$10,850


$14,969


$13,941


$15,746


$19,132


$22,296


$26,518



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000215140_LG_ClassMember_8YR" id="ixv-2120">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Stocks for Inflation ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-135720"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-135721"
      unitRef="usd">9812</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135722"
      unitRef="usd">12930</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-135723"
      unitRef="usd">13580</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-135724"
      unitRef="usd">14635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-135725"
      unitRef="usd">18380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-135726"
      unitRef="usd">21224</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-135727"
      unitRef="usd">25012</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000215140_LG_1_AdditionalIndexMember_8YR"
      id="ixv-2157">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Stocks for Inflation Factor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135728"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135729"
      unitRef="usd">9844</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135730"
      unitRef="usd">13016</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135731"
      unitRef="usd">13712</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135732"
      unitRef="usd">14821</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135733"
      unitRef="usd">18629</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135734"
      unitRef="usd">21551</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135735"
      unitRef="usd">25439</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000215140_LG_2_AdditionalIndexMember_8YR"
      id="ixv-2194">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135736"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135737"
      unitRef="usd">10850</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135738"
      unitRef="usd">14969</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135739"
      unitRef="usd">13941</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135740"
      unitRef="usd">15746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135741"
      unitRef="usd">19132</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135742"
      unitRef="usd">22296</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000215140_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135743"
      unitRef="usd">26518</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000215140_ClassMember" id="ixv-2274">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Stocks for Inflation ETF - NAV &#160;A&#160;

17.85%

14.11%

14.57%


Fidelity Stocks for Inflation Factor Index&#x2120; &#160;A

18.04%


14.34%


14.86%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.57%




A&#160; &#160;From November 5, 2019

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-135744"
      unitRef="pure">0.1785</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-135745"
      unitRef="pure">0.1411</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-135746"
      unitRef="pure">0.1457</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135747"
      unitRef="pure">0.1804</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135748"
      unitRef="pure">0.1434</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135749"
      unitRef="pure">0.1486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135750"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135751"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000215140_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135752"
      unitRef="pure">0.1557</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000215140_Perf_2019-11-05_ClassMember"
      id="ixv-2348">2019-11-05</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000215140_ClassMember" id="ixv-2358">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000215140_ClassMember" id="ixv-2370">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000215140_ClassMember" id="ixv-2374">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000215140_ClassMember" id="ixv-2380">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;270,278,249&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;102&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;381,819&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-135753"
      unitRef="usd">270278249</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000215140_InstantMember"
      decimals="INF"
      id="ixv-135754"
      unitRef="holding">102</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000215140_ClassMember"
      decimals="0"
      id="ixv-135755"
      unitRef="usd">381819</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000215140_ClassMember"
      decimals="INF"
      id="ixv-135756"
      unitRef="pure">0.76</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000215140_ClassMember" id="ixv-2455">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

30.2

&#160;


Health Care

13.9

&#160;


Consumer Staples

9.6

&#160;


Energy

9.0

&#160;


Financials

8.0

&#160;


Industrials

5.7

&#160;


Materials

5.3

&#160;


Consumer Discretionary

5.0

&#160;


Communication Services

4.7

&#160;


Real Estate

4.4

&#160;


Utilities

4.1

&#160;


&#160;




Common Stocks

99.9


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






United States

93.5


United Kingdom

3.2


Australia

2.6


Bermuda

0.5


Switzerland

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 93.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 3.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 2.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bermuda - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Switzerland - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000215140_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-135757"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-135758"
      unitRef="pure">0.139</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-135759"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-135760"
      unitRef="pure">0.090</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-135761"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-135762"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-135763"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-135764"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-135765"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-135766"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-135767"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135768"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135769"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_GD_US_Member"
      decimals="INF"
      id="ixv-135770"
      unitRef="pure">0.935</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_GD_GB_Member"
      decimals="INF"
      id="ixv-135771"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_GD_AU_Member"
      decimals="INF"
      id="ixv-135772"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_GD_BM_Member"
      decimals="INF"
      id="ixv-135773"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_GD_CH_Member"
      decimals="INF"
      id="ixv-135774"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000215140_ClassMember" id="ixv-2729">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

6.0


&#160;


Apple Inc

5.7


&#160;


Microsoft Corp

4.3


&#160;


APA Corp

3.5


&#160;


TechnipFMC PLC

3.2


&#160;


Alphabet Inc Class A

2.9


&#160;


Newmont Corp

2.7


&#160;


Anglogold Ashanti Plc

2.6


&#160;


Simon Property Group Inc

2.5


&#160;


Broadcom Inc

2.4


&#160;


&#160;

35.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000215140_TH_0_Member"
      decimals="INF"
      id="ixv-135775"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_1_Member"
      decimals="INF"
      id="ixv-135776"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_2_Member"
      decimals="INF"
      id="ixv-135777"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_3_Member"
      decimals="INF"
      id="ixv-135778"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_4_Member"
      decimals="INF"
      id="ixv-135779"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_5_Member"
      decimals="INF"
      id="ixv-135780"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_6_Member"
      decimals="INF"
      id="ixv-135781"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_7_Member"
      decimals="INF"
      id="ixv-135782"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_8_Member"
      decimals="INF"
      id="ixv-135783"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000215140_TH_9_Member"
      decimals="INF"
      id="ixv-135784"
      unitRef="pure">0.024</oef:PctOfNav>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-2900">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000209803_ClassMember" id="ixv-2904">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000209803_ClassMember" id="ixv-2915">Fidelity&#xae; Small-Mid Multifactor ETF</oef:FundName>
    <oef:ClassName contextRef="C000209803_ClassMember" id="ixv-2918">Fidelity&#xae; Small-Mid Multifactor ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000209803_ClassMember" id="ixv-2922">FSMD</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000209803_ClassMember" id="ixv-135785">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000209803_ClassMember" id="ixv-2943">This annual shareholder report contains information about Fidelity&#xae; Small-Mid Multifactor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000209803_ClassMember" id="ixv-2945">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000209803_ClassMember" id="ixv-2950">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000209803_ClassMember" id="ixv-2952">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000209803_ClassMember" id="ixv-2955">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000209803_ClassMember" id="ixv-2958">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000209803_ClassMember" id="ixv-2965">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Small-Mid Multifactor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000209803_ClassMember"
      decimals="0"
      id="ixv-135786"
      unitRef="usd">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000209803_ClassMember"
      decimals="INF"
      id="ixv-135787"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000209803_ClassMember" id="ixv-3008">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, industrials gained roughly 23% and contributed most to the fund's performance for the fiscal year, driven by the capital goods industry (+29%). Information technology, which gained about 32%, also helped, benefiting from the technology hardware &amp;amp; equipment industry (+82%), as did financials, which advanced approximately 26%. The health care sector rose approximately 33%, boosted by the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+46%), while energy gained about 55% and real estate advanced approximately 27%. Other contributors included the consumer discretionary (+10%), materials (+12%), consumer staples (+3%), communication services (+6%) and utilities (+2%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Sandisk (+87%), from the technology hardware &amp;amp; equipment industry. From the same category, Ciena (+301%) and Flex (+134%) contributed. Comfort Systems USA (+147%), a stock in the capital goods category, helped. Lastly, Anglogold Ashanti, within the materials sector, gained approximately 79% and also contributed.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor was Reddit (-39%), from the media &amp;amp; entertainment group. In consumer services, Duolingo (-68%) hurt the fund. In software &amp;amp; services, Guidewire Software (-44%) and Kyndryl Holdings (-67%) hurt the fund. Lastly, in health care equipment &amp;amp; services, Doximity (-64%) also detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000209803_ClassMember" id="ixv-3026">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 26, 2019 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Small-Mid Multifactor ETF


$10,000

$10,335


$9,829


$14,174


$13,841


$14,937


$17,791


$18,516



Fidelity Small-Mid Multifactor Index&#x2120;


$10,000

$10,350


$9,866


$14,281


$13,993


$15,144


$18,079


$18,833



Dow Jones U.S. Completion Total Stock Market Index&#x2120;


$10,000

$10,374


$10,905


$16,466


$12,868


$14,212


$16,338


$18,235



Dow Jones U.S. Total Stock Market Index&#x2120;


$10,000

$10,689


$11,843


$16,453


$15,173


$17,088


$20,694


$23,949



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000209803_LG_ClassMember_8YR" id="ixv-3045">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Small-Mid Multifactor ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-135788"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-135789"
      unitRef="usd">10335</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135790"
      unitRef="usd">9829</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-135791"
      unitRef="usd">14174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-135792"
      unitRef="usd">13841</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-135793"
      unitRef="usd">14937</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-135794"
      unitRef="usd">17791</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-135795"
      unitRef="usd">18516</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000209803_LG_1_AdditionalIndexMember_8YR"
      id="ixv-3082">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Small-Mid Multifactor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135796"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135797"
      unitRef="usd">10350</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135798"
      unitRef="usd">9866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135799"
      unitRef="usd">14281</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135800"
      unitRef="usd">13993</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135801"
      unitRef="usd">15144</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135802"
      unitRef="usd">18079</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135803"
      unitRef="usd">18833</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000209803_LG_2_AdditionalIndexMember_8YR"
      id="ixv-3119">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Dow Jones U.S. Completion Total Stock Market Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135804"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135805"
      unitRef="usd">10374</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135806"
      unitRef="usd">10905</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135807"
      unitRef="usd">16466</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135808"
      unitRef="usd">12868</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135809"
      unitRef="usd">14212</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135810"
      unitRef="usd">16338</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135811"
      unitRef="usd">18235</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000209803_0_LG_BBIndexMember_8YR"
      id="ixv-3156">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Dow Jones U.S. Total Stock Market Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-135812"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-135813"
      unitRef="usd">10689</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135814"
      unitRef="usd">11843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135815"
      unitRef="usd">16453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135816"
      unitRef="usd">15173</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135817"
      unitRef="usd">17088</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135818"
      unitRef="usd">20694</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000209803_0_BBIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135819"
      unitRef="usd">23949</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000209803_ClassMember" id="ixv-3235">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Small-Mid Multifactor ETF - NAV &#160;A&#160;

22.79%

9.91%

11.69%


Fidelity Small-Mid Multifactor Index&#x2120; &#160;A

22.88%


10.14%


11.96%


Dow Jones U.S. Completion Total Stock Market Index&#x2120; &#160;A

20.49%


5.94%


11.18%


Dow Jones U.S. Total Stock Market Index&#x2120; &#160;A

19.67%


11.74%


15.22%




A&#160; &#160;From February 26, 2019

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-135820"
      unitRef="pure">0.2279</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-135821"
      unitRef="pure">0.0991</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-135822"
      unitRef="pure">0.1169</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135823"
      unitRef="pure">0.2288</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135824"
      unitRef="pure">0.1014</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135825"
      unitRef="pure">0.1196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_1_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135826"
      unitRef="pure">0.2049</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_1_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135827"
      unitRef="pure">0.0594</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_1_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135828"
      unitRef="pure">0.1118</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_2_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135829"
      unitRef="pure">0.1967</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_2_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135830"
      unitRef="pure">0.1174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000209803_2_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135831"
      unitRef="pure">0.1522</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000209803_Perf_2019-02-26_ClassMember"
      id="ixv-3326">2019-02-26</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000209803_ClassMember" id="ixv-3336">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000209803_ClassMember" id="ixv-3348">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000209803_ClassMember" id="ixv-3352">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000209803_ClassMember" id="ixv-3358">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,503,802,934&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;591&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,118,145&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;51&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000209803_InstantMember"
      decimals="0"
      id="ixv-135832"
      unitRef="usd">2503802934</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000209803_InstantMember"
      decimals="INF"
      id="ixv-135833"
      unitRef="holding">591</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000209803_ClassMember"
      decimals="0"
      id="ixv-135834"
      unitRef="usd">3118145</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000209803_ClassMember"
      decimals="INF"
      id="ixv-135835"
      unitRef="pure">0.51</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000209803_ClassMember" id="ixv-3433">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

20.9

&#160;


Financials

16.8

&#160;


Information Technology

16.7

&#160;


Health Care

12.7

&#160;


Consumer Discretionary

9.9

&#160;


Real Estate

6.1

&#160;


Energy

4.2

&#160;


Materials

4.2

&#160;


Communication Services

3.1

&#160;


Consumer Staples

3.1

&#160;


Utilities

2.2

&#160;


&#160;




Common Stocks

99.9


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






United States

97.1


Puerto Rico

0.6


Australia

0.5


United Kingdom

0.5


Bermuda

0.4


Thailand

0.3


Sweden

0.2


Switzerland

0.2


China

0.1


Others

0.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 97.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Puerto Rico - 0.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bermuda - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Thailand - 0.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Sweden - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Switzerland - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

China - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Others - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000209803_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-135836"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-135837"
      unitRef="pure">0.168</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-135838"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-135839"
      unitRef="pure">0.127</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-135840"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-135841"
      unitRef="pure">0.061</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-135842"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-135843"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-135844"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-135845"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-135846"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135847"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135848"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_US_Member"
      decimals="INF"
      id="ixv-135849"
      unitRef="pure">0.971</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_PR_Member"
      decimals="INF"
      id="ixv-135850"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_AU_Member"
      decimals="INF"
      id="ixv-135851"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_GB_Member"
      decimals="INF"
      id="ixv-135852"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_BM_Member"
      decimals="INF"
      id="ixv-135853"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_TH_Member"
      decimals="INF"
      id="ixv-135854"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_SE_Member"
      decimals="INF"
      id="ixv-135855"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_CH_Member"
      decimals="INF"
      id="ixv-135856"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_CN_Member"
      decimals="INF"
      id="ixv-135857"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_GD_Other_Member"
      decimals="INF"
      id="ixv-135858"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000209803_ClassMember" id="ixv-3772">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Sandisk Corp

2.3


&#160;


Comfort Systems USA Inc

0.9


&#160;


Ciena Corp

0.9


&#160;


Flex Ltd

0.8


&#160;


Lumentum Holdings Inc

0.7


&#160;


Coherent Corp

0.6


&#160;


Revolution Medicines Inc

0.6


&#160;


Casey's General Stores Inc

0.6


&#160;


EMCOR Group Inc

0.5


&#160;


Tapestry Inc

0.5


&#160;


&#160;

8.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000209803_TH_0_Member"
      decimals="INF"
      id="ixv-135859"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_1_Member"
      decimals="INF"
      id="ixv-135860"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_2_Member"
      decimals="INF"
      id="ixv-135861"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_3_Member"
      decimals="INF"
      id="ixv-135862"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_4_Member"
      decimals="INF"
      id="ixv-135863"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_5_Member"
      decimals="INF"
      id="ixv-135864"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_6_Member"
      decimals="INF"
      id="ixv-135865"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_7_Member"
      decimals="INF"
      id="ixv-135866"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_8_Member"
      decimals="INF"
      id="ixv-135867"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000209803_TH_9_Member"
      decimals="INF"
      id="ixv-135868"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000209803_ClassMember" id="ixv-3897">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000209803_ClassMember" id="ixv-3903">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000209803_ClassMember" id="ixv-3905">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000209803_ClassMember" id="ixv-3908">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000209803_ClassMember" id="ixv-3912">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000209803_ClassMember" id="ixv-3923">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-3981">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000223347_ClassMember" id="ixv-3985">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000223347_ClassMember" id="ixv-3996">Fidelity&#xae; Fundamental Small-Mid Cap ETF</oef:FundName>
    <oef:ClassName contextRef="C000223347_ClassMember" id="ixv-3999">Fidelity&#xae; Fundamental Small-Mid Cap ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000223347_ClassMember" id="ixv-4003">FFSM</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000223347_ClassMember" id="ixv-135869">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000223347_ClassMember" id="ixv-4024">This annual shareholder report contains information about Fidelity&#xae; Fundamental Small-Mid Cap ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000223347_ClassMember" id="ixv-4026">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000223347_ClassMember" id="ixv-4031">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000223347_ClassMember" id="ixv-4033">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000223347_ClassMember" id="ixv-4036">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000223347_ClassMember" id="ixv-4039">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000223347_ClassMember" id="ixv-4046">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Small-Mid Cap ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.43&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000223347_ClassMember"
      decimals="0"
      id="ixv-135870"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000223347_ClassMember"
      decimals="INF"
      id="ixv-135871"
      unitRef="pure">0.0043</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000223347_ClassMember" id="ixv-4089">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark Russell 2500 Index for the fiscal year, especially within information technology. Picks in consumer discretionary and financials also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Lumentum Holdings (+468%). This period we decreased our stake in Lumentum Holdings. The company was one of the fund's largest holdings this period. A non-benchmark stake in Seagate Technology Holdings gained about 402% and was the second-largest relative contributor. This period we decreased our stake in Seagate Technology Holdings. A non-benchmark stake in Western Digital gained approximately 417% and notably helped. This was an investment we established this period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was stock selection in materials. Also hurting our result were overweights in industrials, primarily within the commercial &amp;amp; professional services industry, and consumer staples, primarily within the consumer staples distribution &amp;amp; retail industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Sandisk, a benchmark component that gained 2,730%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Tecnoglass Holdings (-44%). Not owning Bloom Energy, a benchmark component that gained 574%, was another notable relative detractor.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the health care sector and a lower allocation to consumer staples.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000223347_ClassMember" id="ixv-4113">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 2, 2021 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Fundamental Small-Mid Cap ETF


$10,000

$11,436


$10,534


$11,484


$13,747


$14,166



Russell 2500&#x2122; Index


$10,000

$10,827


$9,607


$10,380


$11,736


$12,238



Russell 3000&#xae; Index


$10,000

$11,395


$10,557


$11,893


$14,399


$16,657



&#160;

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000223347_LG_ClassMember_6YR" id="ixv-4132">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Small-Mid Cap ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135872"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2022"
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      unitRef="usd">11436</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-135874"
      unitRef="usd">10534</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-135875"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-135876"
      unitRef="usd">13747</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_ClassMember_AsOf_2026"
      decimals="0"
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      unitRef="usd">14166</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223347_LG_1_AdditionalIndexMember_6YR"
      id="ixv-4161">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 2500&#x2122; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135878"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135879"
      unitRef="usd">10827</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135880"
      unitRef="usd">9607</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135881"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135882"
      unitRef="usd">11736</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_1_AdditionalIndexMember_AsOf_2026"
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      id="ixv-135883"
      unitRef="usd">12238</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223347_LG_2_AdditionalIndexMember_6YR"
      id="ixv-4190">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135884"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135885"
      unitRef="usd">11395</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135886"
      unitRef="usd">10557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135887"
      unitRef="usd">11893</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135888"
      unitRef="usd">14399</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223347_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135889"
      unitRef="usd">16657</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000223347_ClassMember" id="ixv-4256">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Fundamental Small-Mid Cap ETF - NAV &#160;A&#160;

33.14%

10.52%

12.24%


Russell 2500&#x2122; Index &#160;A

30.64%


8.11%


8.92%


Russell 3000&#xae; Index &#160;A

19.60%


11.82%


13.37%




A&#160; &#160;From February 2, 2021

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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    <oef:AvgAnnlRtrPct
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      id="ixv-135891"
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      decimals="INF"
      id="ixv-135892"
      unitRef="pure">0.1224</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135893"
      unitRef="pure">0.3064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135894"
      unitRef="pure">0.0811</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135895"
      unitRef="pure">0.0892</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135896"
      unitRef="pure">0.1960</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135897"
      unitRef="pure">0.1182</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223347_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135898"
      unitRef="pure">0.1337</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000223347_Perf_2021-02-02_ClassMember"
      id="ixv-4330">2021-02-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000223347_ClassMember" id="ixv-4340">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000223347_ClassMember" id="ixv-4352">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000223347_ClassMember" id="ixv-4356">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000223347_ClassMember" id="ixv-4362">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,511,544,075&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;218&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,472,270&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;39&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-135899"
      unitRef="usd">1511544075</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="ixv-135900"
      unitRef="holding">218</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      id="ixv-135901"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000223347_ClassMember"
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      id="ixv-135902"
      unitRef="pure">0.39</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000223347_ClassMember" id="ixv-4437">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

25.5

&#160;


Financials

16.3

&#160;


Information Technology

12.5

&#160;


Health Care

12.3

&#160;


Consumer Discretionary

11.6

&#160;


Real Estate

5.6

&#160;


Energy

4.3

&#160;


Consumer Staples

4.2

&#160;


Materials

3.9

&#160;


Utilities

2.5

&#160;


Communication Services

0.6

&#160;


&#160;




Common Stocks

99.3


Short-Term Investments and Net Other Assets (Liabilities)

0.7




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.7


&#160;






United States

94.5


Canada

1.4


United Kingdom

1.2


Thailand

0.9


Bermuda

0.7


Israel

0.4


Puerto Rico

0.3


Taiwan

0.3


Switzerland

0.2


Netherlands

0.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 94.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 1.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Thailand - 0.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bermuda - 0.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Israel - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Puerto Rico - 0.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 0.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Switzerland - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Netherlands - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
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    <oef:PctOfNav
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    <oef:PctOfNav
      contextRef="C000223347_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-135906"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-135907"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-135908"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-135909"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-135910"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-135911"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-135912"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-135913"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135914"
      unitRef="pure">0.993</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135915"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_US_Member"
      decimals="INF"
      id="ixv-135916"
      unitRef="pure">0.945</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_CA_Member"
      decimals="INF"
      id="ixv-135917"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_GB_Member"
      decimals="INF"
      id="ixv-135918"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_TH_Member"
      decimals="INF"
      id="ixv-135919"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_BM_Member"
      decimals="INF"
      id="ixv-135920"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_IL_Member"
      decimals="INF"
      id="ixv-135921"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_PR_Member"
      decimals="INF"
      id="ixv-135922"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_TW_Member"
      decimals="INF"
      id="ixv-135923"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_CH_Member"
      decimals="INF"
      id="ixv-135924"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_GD_NL_Member"
      decimals="INF"
      id="ixv-135925"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000223347_ClassMember" id="ixv-4776">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


IES Holdings Inc

1.7


&#160;


ATI Inc

1.6


&#160;


TD SYNNEX Corp

1.6


&#160;


Jones Lang LaSalle Inc

1.4


&#160;


Performance Food Group Co

1.4


&#160;


FirstCash Holdings Inc

1.3


&#160;


Carpenter Technology Corp

1.3


&#160;


Sterling Infrastructure Inc

1.3


&#160;


Sanmina Corp

1.3


&#160;


ITT Inc

1.2


&#160;


&#160;

14.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223347_TH_0_Member"
      decimals="INF"
      id="ixv-135926"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_1_Member"
      decimals="INF"
      id="ixv-135927"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_2_Member"
      decimals="INF"
      id="ixv-135928"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_3_Member"
      decimals="INF"
      id="ixv-135929"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_4_Member"
      decimals="INF"
      id="ixv-135930"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_5_Member"
      decimals="INF"
      id="ixv-135931"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_6_Member"
      decimals="INF"
      id="ixv-135932"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_7_Member"
      decimals="INF"
      id="ixv-135933"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_8_Member"
      decimals="INF"
      id="ixv-135934"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223347_TH_9_Member"
      decimals="INF"
      id="ixv-135935"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000223347_ClassMember" id="ixv-4901">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000223347_ClassMember" id="ixv-4907">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000223347_ClassMember" id="ixv-4909">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000223347_ClassMember" id="ixv-4912">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000223347_ClassMember" id="ixv-4916">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000223347_ClassMember" id="ixv-4927">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-4985">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000223346_ClassMember" id="ixv-4989">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000223346_ClassMember" id="ixv-5000">Fidelity&#xae; Real Estate Investment ETF</oef:FundName>
    <oef:ClassName contextRef="C000223346_ClassMember" id="ixv-5003">Fidelity&#xae; Real Estate Investment ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000223346_ClassMember" id="ixv-5007">FPRO</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000223346_ClassMember" id="ixv-135936">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000223346_ClassMember" id="ixv-5028">This annual shareholder report contains information about Fidelity&#xae; Real Estate Investment ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000223346_ClassMember" id="ixv-5030">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000223346_ClassMember" id="ixv-5035">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000223346_ClassMember" id="ixv-5037">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000223346_ClassMember" id="ixv-5040">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000223346_ClassMember" id="ixv-5043">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000223346_ClassMember" id="ixv-5050">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Real Estate Investment ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;62&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.57&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000223346_ClassMember"
      decimals="0"
      id="ixv-135937"
      unitRef="usd">62</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000223346_ClassMember"
      decimals="INF"
      id="ixv-135938"
      unitRef="pure">0.0057</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000223346_ClassMember" id="ixv-5093">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, sector positioning was the primary contributor to the ETF's performance versus the MSCI US IMI Real Estate 25/50 Index for the fiscal year, led by an overweight in the industrial category. Picks in health care also boosted the fund's relative performance, as did an underweight in diversified REITs.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor this period was avoiding Crown Castle, an index component that returned -24%. An underweight in CoStar (-70%) also helped, along with an overweight in Equinix (+32%). The latter was among our largest holdings.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary detractor from performance versus the real estate index was stock picking among industrial REITs. Also hurting our result were underweights in lodging resorts and health care REITs.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was an overweight in American Tower (-14%), one of the fund's largest holdings. An overweight in Americold Realty Trust (-5%) hurt as well. This period we decreased our position in the stock. Another notable relative detractor was Simon Property (+22%), an investment we established this period and one of our biggest holdings on July 31.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the regional malls and free standing industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000223346_ClassMember" id="ixv-5117">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 2, 2021 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Real Estate Investment ETF


$10,000

$12,517


$12,307


$11,086


$12,216


$12,585



MSCI US IMI Real Estate 25/50 Index


$10,000

$12,325


$11,803


$10,663


$11,807


$12,117



S&amp;P 500&#xae; Index


$10,000

$11,570


$11,033


$12,469


$15,231


$17,719



&#160;

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000223346_LG_ClassMember_6YR" id="ixv-5136">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Real Estate Investment ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135939"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-135940"
      unitRef="usd">12517</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-135941"
      unitRef="usd">12307</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-135942"
      unitRef="usd">11086</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-135943"
      unitRef="usd">12216</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-135944"
      unitRef="usd">12585</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223346_LG_1_AdditionalIndexMember_6YR"
      id="ixv-5165">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;MSCI US IMI Real Estate 25/50 Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135945"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135946"
      unitRef="usd">12325</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135947"
      unitRef="usd">11803</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135948"
      unitRef="usd">10663</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135949"
      unitRef="usd">11807</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135950"
      unitRef="usd">12117</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223346_LG_2_AdditionalIndexMember_6YR"
      id="ixv-5194">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-135951"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-135952"
      unitRef="usd">11570</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-135953"
      unitRef="usd">11033</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-135954"
      unitRef="usd">12469</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-135955"
      unitRef="usd">15231</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223346_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-135956"
      unitRef="usd">17719</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000223346_ClassMember" id="ixv-5260">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Real Estate Investment ETF - NAV &#160;A&#160;

16.27%

3.17%

7.18%


MSCI US IMI Real Estate 25/50 Index &#160;A

15.37%


2.55%


6.29%


S&amp;P 500&#xae; Index &#160;A

19.56%


12.86%


14.64%




A&#160; &#160;From February 2, 2021

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-135957"
      unitRef="pure">0.1627</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-135958"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-135959"
      unitRef="pure">0.0718</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-135960"
      unitRef="pure">0.1537</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-135961"
      unitRef="pure">0.0255</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-135962"
      unitRef="pure">0.0629</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-135963"
      unitRef="pure">0.1956</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-135964"
      unitRef="pure">0.1286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223346_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-135965"
      unitRef="pure">0.1464</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000223346_Perf_2021-02-02_ClassMember"
      id="ixv-5334">2021-02-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000223346_ClassMember" id="ixv-5344">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000223346_ClassMember" id="ixv-5356">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000223346_ClassMember" id="ixv-5360">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000223346_ClassMember" id="ixv-5366">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,514,641&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;83,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;36&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000223346_InstantMember"
      decimals="0"
      id="ixv-135966"
      unitRef="usd">16514641</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000223346_InstantMember"
      decimals="INF"
      id="ixv-135967"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000223346_ClassMember"
      decimals="0"
      id="ixv-135968"
      unitRef="usd">83966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000223346_ClassMember"
      decimals="INF"
      id="ixv-135969"
      unitRef="pure">0.36</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000223346_ClassMember" id="ixv-5441">
&#160;
&#160;
&#160;
TOP INDUSTRIES
(% of Fund's net assets)


Specialized REITs

32.1

&#160;


Retail REITs

20.8

&#160;


Industrial REITs

14.3

&#160;


Residential REITs

12.4

&#160;


Health Care REITs

12.3

&#160;


Real Estate Management &amp; Development

7.0

&#160;


Diversified Telecommunication Services

0.2

&#160;


&#160;




&#160;
Common Stocks

99.1


Short-Term Investments and Net Other Assets (Liabilities)

0.9




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.9


&#160;






United States

100.0




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 100.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223346_TI_0_Member"
      decimals="INF"
      id="ixv-135970"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_1_Member"
      decimals="INF"
      id="ixv-135971"
      unitRef="pure">0.208</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_2_Member"
      decimals="INF"
      id="ixv-135972"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_3_Member"
      decimals="INF"
      id="ixv-135973"
      unitRef="pure">0.124</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_4_Member"
      decimals="INF"
      id="ixv-135974"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_5_Member"
      decimals="INF"
      id="ixv-135975"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TI_6_Member"
      decimals="INF"
      id="ixv-135976"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-135977"
      unitRef="pure">0.991</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-135978"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_GD_US_Member"
      decimals="INF"
      id="ixv-135979"
      unitRef="pure">1.000</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000223346_ClassMember" id="ixv-5624">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Prologis Inc

9.9


&#160;


Equinix Inc

9.3


&#160;


American Tower Corp

8.8


&#160;


Welltower Inc

7.6


&#160;


Simon Property Group Inc

5.3


&#160;


Digital Realty Trust Inc

3.9


&#160;


CBRE Group Inc Class A

3.7


&#160;


Kimco Realty Corp

3.7


&#160;


UDR Inc

3.5


&#160;


Ventas Inc

3.2


&#160;


&#160;

58.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223346_TH_0_Member"
      decimals="INF"
      id="ixv-135980"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_1_Member"
      decimals="INF"
      id="ixv-135981"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_2_Member"
      decimals="INF"
      id="ixv-135982"
      unitRef="pure">0.088</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_3_Member"
      decimals="INF"
      id="ixv-135983"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_4_Member"
      decimals="INF"
      id="ixv-135984"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_5_Member"
      decimals="INF"
      id="ixv-135985"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_6_Member"
      decimals="INF"
      id="ixv-135986"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_7_Member"
      decimals="INF"
      id="ixv-135987"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_8_Member"
      decimals="INF"
      id="ixv-135988"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223346_TH_9_Member"
      decimals="INF"
      id="ixv-135989"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000223346_ClassMember" id="ixv-5749">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000223346_ClassMember" id="ixv-5755">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000223346_ClassMember" id="ixv-5757">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000223346_ClassMember" id="ixv-5760">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000223346_ClassMember" id="ixv-5764">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000223346_ClassMember" id="ixv-5775">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-5835">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000171934_ClassMember" id="ixv-5839">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000171934_ClassMember" id="ixv-5850">Fidelity&#xae; Quality Factor ETF</oef:FundName>
    <oef:ClassName contextRef="C000171934_ClassMember" id="ixv-5853">Fidelity&#xae; Quality Factor ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000171934_ClassMember" id="ixv-5857">FQAL</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000171934_ClassMember" id="ixv-135990">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171934_ClassMember" id="ixv-5878">This annual shareholder report contains information about Fidelity&#xae; Quality Factor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171934_ClassMember" id="ixv-5880">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171934_ClassMember" id="ixv-5885">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171934_ClassMember" id="ixv-5887">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171934_ClassMember" id="ixv-5890">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171934_ClassMember" id="ixv-5893">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171934_ClassMember" id="ixv-5900">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Quality Factor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000171934_ClassMember"
      decimals="0"
      id="ixv-135991"
      unitRef="usd">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000171934_ClassMember"
      decimals="INF"
      id="ixv-135992"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000171934_ClassMember" id="ixv-5943">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained 26% and contributed most to the fund's performance for the fiscal year. Health care stocks also helped (+35%), benefiting from the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+42%). Industrials rose 19%, boosted by the capital goods industry (+31%), communication services gained roughly 17%, lifted by the media &amp;amp; entertainment industry (+20%), and energy advanced 34%. Other contributors included the materials (+30%), consumer staples (+13%), real estate (+16%) and financials (+0%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, utilities returned about -4% and detracted most. Consumer discretionary (-1%) also hurt, hampered by the consumer services industry (-2%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Alphabet (+86%), from the media &amp;amp; entertainment group. In technology hardware &amp;amp; equipment, Apple gained approximately 49% and boosted the fund. Lastly, Lam Research (+212%), Applied Materials (+184%) and Broadcom (+33%), from the semiconductors &amp;amp; semiconductor equipment industry, also lifted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor was Meta Platforms (-28%), from the media &amp;amp; entertainment group. From the same category, Netflix (-38%) hurt the fund. Lastly, Microsoft (-12%), Intuit (-47%) and Palantir Technologies (-31%), within the software &amp;amp; services industry, also detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171934_ClassMember" id="ixv-5964">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Quality Factor ETF


$10,000

$11,613


$13,581


$14,551


$16,044


$21,820


$20,776


$22,948


$27,615


$31,914


$37,440



Fidelity U.S. Quality Factor Index&#x2120;


$10,000

$11,648


$13,664


$14,681


$16,233


$22,144


$21,143


$23,416


$28,228


$32,673


$38,386



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000171934_LG_ClassMember_11YR" id="ixv-5983">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Quality Factor ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-135993"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-135994"
      unitRef="usd">11613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-135995"
      unitRef="usd">13581</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-135996"
      unitRef="usd">14551</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-135997"
      unitRef="usd">16044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-135998"
      unitRef="usd">21820</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-135999"
      unitRef="usd">20776</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136000"
      unitRef="usd">22948</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136001"
      unitRef="usd">27615</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136002"
      unitRef="usd">31914</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136003"
      unitRef="usd">37440</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171934_LG_1_AdditionalIndexMember_11YR"
      id="ixv-6032">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity U.S. Quality Factor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136004"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136005"
      unitRef="usd">11648</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136006"
      unitRef="usd">13664</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136007"
      unitRef="usd">14681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136008"
      unitRef="usd">16233</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136009"
      unitRef="usd">22144</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136010"
      unitRef="usd">21143</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136011"
      unitRef="usd">23416</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136012"
      unitRef="usd">28228</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136013"
      unitRef="usd">32673</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136014"
      unitRef="usd">38386</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171934_LG_2_AdditionalIndexMember_11YR"
      id="ixv-6081">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136015"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136016"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136017"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136018"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136019"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136020"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136021"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136022"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136023"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136024"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171934_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136025"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171934_ClassMember" id="ixv-6182">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Quality Factor ETF - NAV &#160;A&#160;

17.32%

11.40%

14.28%


Fidelity U.S. Quality Factor Index&#x2120; &#160;A

17.48%


11.63%


14.57%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136026"
      unitRef="pure">0.1732</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136027"
      unitRef="pure">0.1140</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136028"
      unitRef="pure">0.1428</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136029"
      unitRef="pure">0.1748</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136030"
      unitRef="pure">0.1163</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136031"
      unitRef="pure">0.1457</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136032"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136033"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171934_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136034"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171934_Perf_2016-09-12_ClassMember"
      id="ixv-6256">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171934_ClassMember" id="ixv-6266">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171934_ClassMember" id="ixv-6278">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171934_ClassMember" id="ixv-6282">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171934_ClassMember" id="ixv-6288">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,412,600,667&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;128&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,825,233&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;39&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171934_InstantMember"
      decimals="0"
      id="ixv-136035"
      unitRef="usd">1412600667</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171934_InstantMember"
      decimals="INF"
      id="ixv-136036"
      unitRef="holding">128</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171934_ClassMember"
      decimals="0"
      id="ixv-136037"
      unitRef="usd">1825233</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171934_ClassMember"
      decimals="INF"
      id="ixv-136038"
      unitRef="pure">0.39</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171934_ClassMember" id="ixv-6363">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

33.2

&#160;


Financials

12.1

&#160;


Industrials

9.7

&#160;


Health Care

9.0

&#160;


Consumer Discretionary

8.9

&#160;


Communication Services

8.7

&#160;


Consumer Staples

4.6

&#160;


Energy

3.4

&#160;


Real Estate

2.0

&#160;


Utilities

2.0

&#160;


Materials

1.9

&#160;


&#160;




Common Stocks

95.5


Short-Term Investments and Net Other Assets (Liabilities)

4.5




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 95.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 4.5


&#160;






United States

99.9


Australia

0.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171934_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136039"
      unitRef="pure">0.332</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136040"
      unitRef="pure">0.121</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136041"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136042"
      unitRef="pure">0.090</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136043"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136044"
      unitRef="pure">0.087</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136045"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136046"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136047"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136048"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136049"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136050"
      unitRef="pure">0.955</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136051"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_GD_US_Member"
      decimals="INF"
      id="ixv-136052"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_GD_AU_Member"
      decimals="INF"
      id="ixv-136053"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171934_ClassMember" id="ixv-6598">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

7.3


&#160;


Apple Inc

6.9


&#160;


Microsoft Corp

5.2


&#160;


Alphabet Inc Class A

5.2


&#160;


Broadcom Inc

3.2


&#160;


JPMorgan Chase &amp; Co

1.9


&#160;


Meta Platforms Inc Class A

1.8


&#160;


Eli Lilly &amp; Co

1.7


&#160;


Applied Materials Inc

1.5


&#160;


Visa Inc Class A

1.4


&#160;


&#160;

36.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171934_TH_0_Member"
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      id="ixv-136054"
      unitRef="pure">0.073</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_1_Member"
      decimals="INF"
      id="ixv-136055"
      unitRef="pure">0.069</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_2_Member"
      decimals="INF"
      id="ixv-136056"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_3_Member"
      decimals="INF"
      id="ixv-136057"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_4_Member"
      decimals="INF"
      id="ixv-136058"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_5_Member"
      decimals="INF"
      id="ixv-136059"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_6_Member"
      decimals="INF"
      id="ixv-136060"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_7_Member"
      decimals="INF"
      id="ixv-136061"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_8_Member"
      decimals="INF"
      id="ixv-136062"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171934_TH_9_Member"
      decimals="INF"
      id="ixv-136063"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000171934_ClassMember" id="ixv-6723">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000171934_ClassMember" id="ixv-6729">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000171934_ClassMember" id="ixv-6731">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000171934_ClassMember" id="ixv-6734">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000171934_ClassMember" id="ixv-6738">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000171934_ClassMember" id="ixv-6749">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-6807">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000218330_ClassMember" id="ixv-6811">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000218330_ClassMember" id="ixv-6822">Fidelity&#xae; Fundamental Large Cap Core ETF</oef:FundName>
    <oef:ClassName contextRef="C000218330_ClassMember" id="ixv-6825">Fidelity&#xae; Fundamental Large Cap Core ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000218330_ClassMember" id="ixv-6829">FFLC</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000218330_ClassMember" id="ixv-136064">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000218330_ClassMember" id="ixv-6850">This annual shareholder report contains information about Fidelity&#xae; Fundamental Large Cap Core ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000218330_ClassMember" id="ixv-6852">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000218330_ClassMember" id="ixv-6857">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000218330_ClassMember" id="ixv-6859">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000218330_ClassMember" id="ixv-6862">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000218330_ClassMember" id="ixv-6865">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000218330_ClassMember" id="ixv-6872">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Core ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;42&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.38&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000218330_ClassMember"
      decimals="0"
      id="ixv-136065"
      unitRef="usd">42</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000218330_ClassMember"
      decimals="INF"
      id="ixv-136066"
      unitRef="pure">0.0038</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000218330_ClassMember" id="ixv-6915">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the benchmark S&amp;amp;P 500 index for the fiscal year, especially within communication services. Stock picking and an underweight in information technology, primarily within the semiconductors &amp;amp; semiconductor equipment industry, also hampered the fund's result. Also detracting from our result was stock picking in materials.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The largest individual relative detractor was an underweight in Micron Technology (+655%). This was an investment we established this period. The second-largest relative detractor was an overweight in Meta Platforms (-28%). The company was among the fund's biggest holdings. An underweight in Apple (+49%) also detracted. The stock was among our biggest holdings.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock selection in financials. Security selection and an overweight in energy and picks and an underweight in consumer discretionary, primarily within the automobiles &amp;amp; components industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Western Digital (+563%). A second notable relative contributor was an overweight in Seagate Technology Holdings (+222%). This was an investment we established this period. A non-benchmark stake in Taiwan Semiconductor Manufacturing gained about 66% and notably helped. The company was among the fund's biggest holdings at period end.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the health care sector and a lower allocation to financials.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000218330_ClassMember" id="ixv-6939">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 2, 2020 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Fundamental Large Cap Core ETF


$10,000

$10,195


$14,786


$14,933


$18,122


$23,049


$26,806



S&amp;P 500&#xae; Index


$10,000

$10,645


$14,525


$13,851


$15,654


$19,121


$22,244



&#160;

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000218330_LG_ClassMember_7YR" id="ixv-6958">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Core ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136067"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136068"
      unitRef="usd">10195</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136069"
      unitRef="usd">14786</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136070"
      unitRef="usd">14933</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136071"
      unitRef="usd">18122</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136072"
      unitRef="usd">23049</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136073"
      unitRef="usd">26806</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218330_LG_1_AdditionalIndexMember_7YR"
      id="ixv-6991">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136074"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136075"
      unitRef="usd">10645</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136076"
      unitRef="usd">14525</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136077"
      unitRef="usd">13851</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136078"
      unitRef="usd">15654</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136079"
      unitRef="usd">19121</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218330_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136080"
      unitRef="usd">22244</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000218330_ClassMember" id="ixv-7064">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Fundamental Large Cap Core ETF - NAV &#160;A&#160;

18.52%

16.53%

20.63%


S&amp;P 500&#xae; Index &#160;A

19.56%


12.86%


17.20%




A&#160; &#160;From June 2, 2020

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136081"
      unitRef="pure">0.1852</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136082"
      unitRef="pure">0.1653</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136083"
      unitRef="pure">0.2063</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_0_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136084"
      unitRef="pure">0.1956</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_0_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136085"
      unitRef="pure">0.1286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218330_0_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136086"
      unitRef="pure">0.1720</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000218330_Perf_2020-06-02_ClassMember"
      id="ixv-7121">2020-06-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000218330_ClassMember" id="ixv-7131">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000218330_ClassMember" id="ixv-7143">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000218330_ClassMember" id="ixv-7147">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000218330_ClassMember" id="ixv-7153">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,202,139,258&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;118&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,787,066&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;31&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000218330_InstantMember"
      decimals="0"
      id="ixv-136087"
      unitRef="usd">1202139258</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000218330_InstantMember"
      decimals="INF"
      id="ixv-136088"
      unitRef="holding">118</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000218330_ClassMember"
      decimals="0"
      id="ixv-136089"
      unitRef="usd">3787066</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000218330_ClassMember"
      decimals="INF"
      id="ixv-136090"
      unitRef="pure">0.31</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000218330_ClassMember" id="ixv-7228">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

30.6

&#160;


Industrials

12.4

&#160;


Financials

12.4

&#160;


Consumer Discretionary

10.6

&#160;


Communication Services

10.4

&#160;


Health Care

9.2

&#160;


Energy

4.6

&#160;


Consumer Staples

4.4

&#160;


Materials

2.3

&#160;


Utilities

1.4

&#160;


Real Estate

0.9

&#160;


&#160;




Common Stocks

99.2


Short-Term Investments and Net Other Assets (Liabilities)

0.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.8


&#160;






United States

92.7


Taiwan

2.4


United Kingdom

1.4


Canada

1.3


Korea (South)

1.0


Netherlands

0.5


Germany

0.3


Belgium

0.2


Brazil

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 92.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 2.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 1.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Korea (South) - 1.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Netherlands - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Germany - 0.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Belgium - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Brazil - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000218330_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136091"
      unitRef="pure">0.306</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136092"
      unitRef="pure">0.124</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136093"
      unitRef="pure">0.124</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136094"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136095"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136096"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136097"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136098"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136099"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136100"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136101"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136102"
      unitRef="pure">0.992</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136103"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_US_Member"
      decimals="INF"
      id="ixv-136104"
      unitRef="pure">0.927</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_TW_Member"
      decimals="INF"
      id="ixv-136105"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_GB_Member"
      decimals="INF"
      id="ixv-136106"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_CA_Member"
      decimals="INF"
      id="ixv-136107"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_KR_Member"
      decimals="INF"
      id="ixv-136108"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_NL_Member"
      decimals="INF"
      id="ixv-136109"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_DE_Member"
      decimals="INF"
      id="ixv-136110"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_BE_Member"
      decimals="INF"
      id="ixv-136111"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_GD_BR_Member"
      decimals="INF"
      id="ixv-136112"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000218330_ClassMember" id="ixv-7554">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

8.4


&#160;


Alphabet Inc Class A

7.2


&#160;


Amazon.com Inc

5.5


&#160;


Apple Inc

4.2


&#160;


Meta Platforms Inc Class A

2.9


&#160;


Microsoft Corp

2.6


&#160;


Broadcom Inc

2.5


&#160;


Taiwan Semiconductor Manufacturing Co Ltd ADR

2.4


&#160;


ExxonMobil Holdings Corp

2.0


&#160;


Visa Inc Class A

1.9


&#160;


&#160;

39.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000218330_TH_0_Member"
      decimals="INF"
      id="ixv-136113"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_1_Member"
      decimals="INF"
      id="ixv-136114"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_2_Member"
      decimals="INF"
      id="ixv-136115"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_3_Member"
      decimals="INF"
      id="ixv-136116"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_4_Member"
      decimals="INF"
      id="ixv-136117"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_5_Member"
      decimals="INF"
      id="ixv-136118"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_6_Member"
      decimals="INF"
      id="ixv-136119"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_7_Member"
      decimals="INF"
      id="ixv-136120"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_8_Member"
      decimals="INF"
      id="ixv-136121"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218330_TH_9_Member"
      decimals="INF"
      id="ixv-136122"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000218330_ClassMember" id="ixv-7679">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000218330_ClassMember" id="ixv-7685">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000218330_ClassMember" id="ixv-7687">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000218330_ClassMember" id="ixv-7690">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000218330_ClassMember" id="ixv-7694">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000218330_ClassMember" id="ixv-7705">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-7763">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:FundName contextRef="C000171933_ClassMember" id="ixv-7775">Fidelity&#xae; Momentum Factor ETF</oef:FundName>
    <oef:ClassName contextRef="C000171933_ClassMember" id="ixv-7778">Fidelity&#xae; Momentum Factor ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000171933_ClassMember" id="ixv-7782">FDMO</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000171933_ClassMember" id="ixv-136123">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171933_ClassMember" id="ixv-7803">This annual shareholder report contains information about Fidelity&#xae; Momentum Factor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171933_ClassMember" id="ixv-7805">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171933_ClassMember" id="ixv-7810">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171933_ClassMember" id="ixv-7812">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171933_ClassMember" id="ixv-7815">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171933_ClassMember" id="ixv-7818">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171933_ClassMember" id="ixv-7825">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Momentum Factor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000171933_ClassMember"
      decimals="0"
      id="ixv-136124"
      unitRef="usd">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000171933_ClassMember"
      decimals="INF"
      id="ixv-136125"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000171933_ClassMember" id="ixv-7868">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained roughly 28% and contributed most to the fund's performance for the fiscal year, driven by the semiconductors &amp;amp; semiconductor equipment industry (+61%). Industrials, which gained 31%, also helped, benefiting from the capital goods industry (+43%), as did financials, which advanced roughly 14%. The health care sector rose about 18%, boosted by the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+34%), while communication services gained 12% and energy advanced approximately 30%. Other contributors included the consumer discretionary (+5%), consumer staples (+7%), real estate (+15%) and materials (+5%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, utilities returned about -6% and detracted most.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Alphabet (+74%), from the media &amp;amp; entertainment industry. In semiconductors &amp;amp; semiconductor equipment, Micron Technology (+300%) and Advanced Micro Devices (+112%) lifted the fund. Lastly, in technology hardware &amp;amp; equipment, Apple (+31%) and Seagate Technology Holdings (+264%) also contributed.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor was Microsoft (-20%), from the software &amp;amp; services industry. From the same industry, Strategy (-58%) detracted. Meta Platforms, within the media &amp;amp; entertainment group, returned -27% and detracted. In health care equipment &amp;amp; services, Hims &amp;amp; Hers Health returned -66% and hurt the fund. Lastly, in technology hardware &amp;amp; equipment, Coherent (-31%) also hurt the fund's performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171933_ClassMember" id="ixv-7889">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Momentum Factor ETF


$10,000

$11,408


$13,543


$14,614


$16,231


$20,708


$19,217


$20,950


$27,012


$33,637


$40,097



Fidelity U.S. Momentum Factor Index&#x2120;


$10,000

$11,443


$13,633


$14,749


$16,427


$21,025


$19,571


$21,399


$27,651


$34,492


$41,178



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000171933_LG_ClassMember_11YR" id="ixv-7908">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Momentum Factor ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-136126"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-136127"
      unitRef="usd">11408</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-136128"
      unitRef="usd">13543</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-136129"
      unitRef="usd">14614</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136130"
      unitRef="usd">16231</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136131"
      unitRef="usd">20708</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136132"
      unitRef="usd">19217</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136133"
      unitRef="usd">20950</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136134"
      unitRef="usd">27012</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136135"
      unitRef="usd">33637</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136136"
      unitRef="usd">40097</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171933_LG_1_AdditionalIndexMember_11YR"
      id="ixv-7957">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity U.S. Momentum Factor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136137"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136138"
      unitRef="usd">11443</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136139"
      unitRef="usd">13633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136140"
      unitRef="usd">14749</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136141"
      unitRef="usd">16427</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136142"
      unitRef="usd">21025</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136143"
      unitRef="usd">19571</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136144"
      unitRef="usd">21399</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136145"
      unitRef="usd">27651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136146"
      unitRef="usd">34492</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136147"
      unitRef="usd">41178</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171933_LG_2_AdditionalIndexMember_11YR"
      id="ixv-8006">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136148"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136149"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136150"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136151"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136152"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136153"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136154"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136155"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136156"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136157"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171933_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136158"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171933_ClassMember" id="ixv-8107">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Momentum Factor ETF - NAV &#160;A&#160;

19.20%

14.13%

15.08%


Fidelity U.S. Momentum Factor Index&#x2120; &#160;A

19.38%


14.39%


15.39%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136159"
      unitRef="pure">0.1920</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136160"
      unitRef="pure">0.1413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136161"
      unitRef="pure">0.1508</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136162"
      unitRef="pure">0.1938</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136163"
      unitRef="pure">0.1439</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136164"
      unitRef="pure">0.1539</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136165"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136166"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171933_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136167"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171933_Perf_2016-09-12_ClassMember"
      id="ixv-8181">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171933_ClassMember" id="ixv-8191">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171933_ClassMember" id="ixv-8203">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171933_ClassMember" id="ixv-8207">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171933_ClassMember" id="ixv-8213">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;903,666,369&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;138&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,033,589&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;111&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171933_InstantMember"
      decimals="0"
      id="ixv-136168"
      unitRef="usd">903666369</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171933_InstantMember"
      decimals="INF"
      id="ixv-136169"
      unitRef="holding">138</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171933_ClassMember"
      decimals="0"
      id="ixv-136170"
      unitRef="usd">1033589</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171933_ClassMember"
      decimals="INF"
      id="ixv-136171"
      unitRef="pure">1.11</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171933_ClassMember" id="ixv-8288">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

35.3

&#160;


Financials

12.6

&#160;


Health Care

10.0

&#160;


Consumer Discretionary

9.5

&#160;


Communication Services

9.2

&#160;


Industrials

9.2

&#160;


Consumer Staples

4.4

&#160;


Energy

3.5

&#160;


Real Estate

2.2

&#160;


Utilities

2.1

&#160;


Materials

1.9

&#160;


&#160;




Common Stocks

99.9


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






United States

99.7


United Kingdom

0.2


Australia

0.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 99.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171933_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136172"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136173"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136174"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136175"
      unitRef="pure">0.095</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136176"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136177"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136178"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136179"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136180"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136181"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136182"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136183"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136184"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_GD_US_Member"
      decimals="INF"
      id="ixv-136185"
      unitRef="pure">0.997</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_GD_GB_Member"
      decimals="INF"
      id="ixv-136186"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_GD_AU_Member"
      decimals="INF"
      id="ixv-136187"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171933_ClassMember" id="ixv-8536">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

8.1


&#160;


Apple Inc

7.7


&#160;


Alphabet Inc Class A

5.7


&#160;


Amazon.com Inc

4.0


&#160;


Broadcom Inc

3.5


&#160;


Micron Technology Inc

2.8


&#160;


Meta Platforms Inc Class A

2.0


&#160;


Eli Lilly &amp; Co

2.0


&#160;


JPMorgan Chase &amp; Co

2.0


&#160;


Berkshire Hathaway Inc Class B

1.8


&#160;


&#160;

39.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171933_TH_0_Member"
      decimals="INF"
      id="ixv-136188"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_1_Member"
      decimals="INF"
      id="ixv-136189"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_2_Member"
      decimals="INF"
      id="ixv-136190"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_3_Member"
      decimals="INF"
      id="ixv-136191"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_4_Member"
      decimals="INF"
      id="ixv-136192"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_5_Member"
      decimals="INF"
      id="ixv-136193"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_6_Member"
      decimals="INF"
      id="ixv-136194"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_7_Member"
      decimals="INF"
      id="ixv-136195"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_8_Member"
      decimals="INF"
      id="ixv-136196"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171933_TH_9_Member"
      decimals="INF"
      id="ixv-136197"
      unitRef="pure">0.018</oef:PctOfNav>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-8707">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000223345_ClassMember" id="ixv-8711">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000223345_ClassMember" id="ixv-8722">Fidelity&#xae; Magellan&#x2120; ETF</oef:FundName>
    <oef:ClassName contextRef="C000223345_ClassMember" id="ixv-8725">Fidelity&#xae; Magellan&#x2120; ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000223345_ClassMember" id="ixv-8729">FMAG</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000223345_ClassMember" id="ixv-136198">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000223345_ClassMember" id="ixv-8750">This annual shareholder report contains information about Fidelity&#xae; Magellan&#x2120; ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000223345_ClassMember" id="ixv-8752">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000223345_ClassMember" id="ixv-8757">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000223345_ClassMember" id="ixv-8759">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000223345_ClassMember" id="ixv-8762">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000223345_ClassMember" id="ixv-8765">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000223345_ClassMember" id="ixv-8772">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Magellan&#x2120; ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;58&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.57&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000223345_ClassMember"
      decimals="0"
      id="ixv-136199"
      unitRef="usd">58</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000223345_ClassMember"
      decimals="INF"
      id="ixv-136200"
      unitRef="pure">0.0057</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000223345_ClassMember" id="ixv-8815">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the ETF's performance versus the S&amp;amp;P 500&#xae; index for the fiscal year, especially within the financials sector. Also hurting our result were picks in information technology and communication services, especially the media &amp;amp; entertainment industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our stake in Alphabet (+1%), a new position in the fund and one of its largest holdings at period end. Not owning Apple, a benchmark component that gained approximately 49%, also hurt. Avoiding Micron Technology, a benchmark component that gained roughly 655%, was another notable relative detractor.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was an overweight in information technology, primarily within the semiconductors &amp;amp; semiconductor equipment industry. Underweights in utilities and consumer staples also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Advanced Micro Devices (+123%), an investment we established this period and among the fund's largest holdings on July 31. An overweight in KLA (+110%), one of the fund's biggest holdings, helped as well. Another notable relative contributor was our non-benchmark stake in Taiwan Semiconductor Manufacturing (+69%). The company was one of our biggest holdings.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the financials sector and a higher allocation to communication services stocks.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000223345_ClassMember" id="ixv-8839">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 2, 2021 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Magellan&#x2120; ETF


$10,000

$11,565


$10,466


$11,221


$14,857


$17,682



S&amp;P 500&#xae; Index


$10,000

$11,570


$11,033


$12,469


$15,231


$17,719



&#160;

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000223345_LG_ClassMember_6YR" id="ixv-8858">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Magellan&#x2120; ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136201"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136202"
      unitRef="usd">11565</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136203"
      unitRef="usd">10466</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136204"
      unitRef="usd">11221</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136205"
      unitRef="usd">14857</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136206"
      unitRef="usd">17682</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223345_LG_1_AdditionalIndexMember_6YR"
      id="ixv-8887">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136207"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136208"
      unitRef="usd">11570</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136209"
      unitRef="usd">11033</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136210"
      unitRef="usd">12469</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136211"
      unitRef="usd">15231</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223345_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136212"
      unitRef="usd">17719</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000223345_ClassMember" id="ixv-8953">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Magellan&#x2120; ETF - NAV &#160;A&#160;

2.51%

9.40%

11.43%


S&amp;P 500&#xae; Index &#160;A

19.56%


12.86%


14.64%




A&#160; &#160;From February 2, 2021

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136213"
      unitRef="pure">0.0251</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136214"
      unitRef="pure">0.0940</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136215"
      unitRef="pure">0.1143</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_0_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136216"
      unitRef="pure">0.1956</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_0_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136217"
      unitRef="pure">0.1286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223345_0_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136218"
      unitRef="pure">0.1464</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000223345_Perf_2021-02-02_ClassMember"
      id="ixv-9010">2021-02-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000223345_ClassMember" id="ixv-9020">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000223345_ClassMember" id="ixv-9032">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000223345_ClassMember" id="ixv-9036">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000223345_ClassMember" id="ixv-9042">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;246,106,729&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;51&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,479,603&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;73&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000223345_InstantMember"
      decimals="0"
      id="ixv-136219"
      unitRef="usd">246106729</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000223345_InstantMember"
      decimals="INF"
      id="ixv-136220"
      unitRef="holding">51</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000223345_ClassMember"
      decimals="0"
      id="ixv-136221"
      unitRef="usd">1479603</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000223345_ClassMember"
      decimals="INF"
      id="ixv-136222"
      unitRef="pure">0.73</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000223345_ClassMember" id="ixv-9117">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

41.3

&#160;


Industrials

17.4

&#160;


Consumer Discretionary

11.9

&#160;


Financials

11.5

&#160;


Communication Services

8.6

&#160;


Materials

3.5

&#160;


Consumer Staples

3.0

&#160;


Health Care

1.4

&#160;


Real Estate

1.0

&#160;


&#160;




Common Stocks

99.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






United States

97.7


Taiwan

2.3




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 97.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223345_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136223"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136224"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136225"
      unitRef="pure">0.119</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136226"
      unitRef="pure">0.115</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136227"
      unitRef="pure">0.086</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136228"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136229"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136230"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136231"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136232"
      unitRef="pure">0.996</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136233"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_GD_US_Member"
      decimals="INF"
      id="ixv-136234"
      unitRef="pure">0.977</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_GD_TW_Member"
      decimals="INF"
      id="ixv-136235"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000223345_ClassMember" id="ixv-9334">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

10.1


&#160;


Amazon.com Inc

6.8


&#160;


Broadcom Inc

5.2


&#160;


Microsoft Corp

5.1


&#160;


Alphabet Inc Class A

4.1


&#160;


Alphabet Inc Class C

3.5


&#160;


Advanced Micro Devices Inc

3.3


&#160;


Taiwan Semiconductor Manufacturing Co Ltd ADR

2.3


&#160;


Visa Inc Class A

2.3


&#160;


KLA Corp

2.2


&#160;


&#160;

44.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223345_TH_0_Member"
      decimals="INF"
      id="ixv-136236"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_1_Member"
      decimals="INF"
      id="ixv-136237"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_2_Member"
      decimals="INF"
      id="ixv-136238"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_3_Member"
      decimals="INF"
      id="ixv-136239"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_4_Member"
      decimals="INF"
      id="ixv-136240"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_5_Member"
      decimals="INF"
      id="ixv-136241"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_6_Member"
      decimals="INF"
      id="ixv-136242"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_7_Member"
      decimals="INF"
      id="ixv-136243"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_8_Member"
      decimals="INF"
      id="ixv-136244"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223345_TH_9_Member"
      decimals="INF"
      id="ixv-136245"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000223345_ClassMember" id="ixv-9459">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000223345_ClassMember" id="ixv-9465">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000223345_ClassMember" id="ixv-9467">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000223345_ClassMember" id="ixv-9470">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000223345_ClassMember" id="ixv-9474">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000223345_ClassMember" id="ixv-9485">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-9546">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000171932_ClassMember" id="ixv-9550">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000171932_ClassMember" id="ixv-9561">Fidelity&#xae; Low Volatility Factor ETF</oef:FundName>
    <oef:ClassName contextRef="C000171932_ClassMember" id="ixv-9564">Fidelity&#xae; Low Volatility Factor ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000171932_ClassMember" id="ixv-9568">FDLO</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000171932_ClassMember" id="ixv-136246">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171932_ClassMember" id="ixv-9589">This annual shareholder report contains information about Fidelity&#xae; Low Volatility Factor ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171932_ClassMember" id="ixv-9591">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171932_ClassMember" id="ixv-9596">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171932_ClassMember" id="ixv-9598">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171932_ClassMember" id="ixv-9601">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171932_ClassMember" id="ixv-9604">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171932_ClassMember" id="ixv-9611">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Low Volatility Factor ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000171932_ClassMember"
      decimals="0"
      id="ixv-136247"
      unitRef="usd">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000171932_ClassMember"
      decimals="INF"
      id="ixv-136248"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000171932_ClassMember" id="ixv-9654">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained roughly 16% and contributed most to the fund's performance for the fiscal year, driven by the technology hardware &amp;amp; equipment industry (+48%). Health care, which gained about 37%, also helped, benefiting from the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+43%), as did communication services, which advanced roughly 27%, lifted by the media &amp;amp; entertainment industry (+46%). The financials sector rose 9%, while energy gained approximately 35% and industrials advanced about 8%. Other contributors included the consumer staples (+9%), consumer discretionary (+4%), real estate (+10%), utilities (+8%), materials (+9%) and multi sector (+0%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Alphabet (+86%), from the media &amp;amp; entertainment category. In technology hardware &amp;amp; equipment, Apple (+49%) and Cisco Systems (+74%) contributed. Lastly, in semiconductors &amp;amp; semiconductor equipment, Broadcom (+35%) and Analog Devices (+66%) also boosted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor was Microsoft (-12%), from the software &amp;amp; services category. From the same industry, Amdocs (-33%), Accenture (-27%) and Roper Technologies (-28%) hurt the fund's performance. Lastly, Meta Platforms (-16%), a stock in the media &amp;amp; entertainment category, also hurt the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171932_ClassMember" id="ixv-9672">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Low Volatility Factor ETF


$10,000

$11,295


$13,203


$15,077


$16,176


$20,851


$20,618


$22,465


$26,124


$28,578


$33,017



Fidelity U.S. Low Volatility Factor Index&#x2120;


$10,000

$11,330


$13,289


$15,181


$16,329


$21,107


$20,933


$22,873


$26,642


$29,187


$33,749



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000171932_LG_ClassMember_11YR" id="ixv-9691">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Low Volatility Factor ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-136249"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-136250"
      unitRef="usd">11295</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-136251"
      unitRef="usd">13203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-136252"
      unitRef="usd">15077</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136253"
      unitRef="usd">16176</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136254"
      unitRef="usd">20851</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136255"
      unitRef="usd">20618</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136256"
      unitRef="usd">22465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136257"
      unitRef="usd">26124</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136258"
      unitRef="usd">28578</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136259"
      unitRef="usd">33017</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171932_LG_1_AdditionalIndexMember_11YR"
      id="ixv-9740">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity U.S. Low Volatility Factor Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136260"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136261"
      unitRef="usd">11330</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136262"
      unitRef="usd">13289</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136263"
      unitRef="usd">15181</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136264"
      unitRef="usd">16329</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136265"
      unitRef="usd">21107</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136266"
      unitRef="usd">20933</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136267"
      unitRef="usd">22873</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136268"
      unitRef="usd">26642</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136269"
      unitRef="usd">29187</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136270"
      unitRef="usd">33749</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171932_LG_2_AdditionalIndexMember_11YR"
      id="ixv-9789">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136271"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136272"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136273"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136274"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136275"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136276"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136277"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136278"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136279"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136280"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171932_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136281"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171932_ClassMember" id="ixv-9890">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Low Volatility Factor ETF - NAV &#160;A&#160;

15.53%

9.63%

12.84%


Fidelity U.S. Low Volatility Factor Index&#x2120; &#160;A

15.63%


9.84%


13.09%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136282"
      unitRef="pure">0.1553</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136283"
      unitRef="pure">0.0963</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136284"
      unitRef="pure">0.1284</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136285"
      unitRef="pure">0.1563</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136286"
      unitRef="pure">0.0984</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136287"
      unitRef="pure">0.1309</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136288"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136289"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171932_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136290"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171932_Perf_2016-09-12_ClassMember"
      id="ixv-9964">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171932_ClassMember" id="ixv-9974">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171932_ClassMember" id="ixv-9986">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171932_ClassMember" id="ixv-9990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171932_ClassMember" id="ixv-9996">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,422,077,326&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;127&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,105,969&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;32&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171932_InstantMember"
      decimals="0"
      id="ixv-136291"
      unitRef="usd">1422077326</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171932_InstantMember"
      decimals="INF"
      id="ixv-136292"
      unitRef="holding">127</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171932_ClassMember"
      decimals="0"
      id="ixv-136293"
      unitRef="usd">2105969</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171932_ClassMember"
      decimals="INF"
      id="ixv-136294"
      unitRef="pure">0.32</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171932_ClassMember" id="ixv-10071">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

32.9

&#160;


Financials

13.4

&#160;


Health Care

10.0

&#160;


Communication Services

9.8

&#160;


Industrials

9.7

&#160;


Consumer Discretionary

9.6

&#160;


Consumer Staples

4.6

&#160;


Energy

3.3

&#160;


Utilities

2.2

&#160;


Real Estate

2.2

&#160;


Materials

2.1

&#160;


&#160;




Common Stocks

99.8


Short-Term Investments and Net Other Assets (Liabilities)

0.2




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.2


&#160;






United States

100.0




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 100.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171932_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136295"
      unitRef="pure">0.329</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136296"
      unitRef="pure">0.134</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136297"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136298"
      unitRef="pure">0.098</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136299"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136300"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136301"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136302"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136303"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136304"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136305"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136306"
      unitRef="pure">0.998</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136307"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_GD_US_Member"
      decimals="INF"
      id="ixv-136308"
      unitRef="pure">1.000</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171932_ClassMember" id="ixv-10293">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Apple Inc

8.0


&#160;


Microsoft Corp

6.4


&#160;


Alphabet Inc Class A

6.2


&#160;


Amazon.com Inc

4.5


&#160;


Broadcom Inc

4.1


&#160;


Cisco Systems Inc

2.2


&#160;


JPMorgan Chase &amp; Co

1.9


&#160;


Berkshire Hathaway Inc Class B

1.8


&#160;


Eli Lilly &amp; Co

1.8


&#160;


Texas Instruments Inc

1.7


&#160;


&#160;

38.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171932_TH_0_Member"
      decimals="INF"
      id="ixv-136309"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_1_Member"
      decimals="INF"
      id="ixv-136310"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_2_Member"
      decimals="INF"
      id="ixv-136311"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_3_Member"
      decimals="INF"
      id="ixv-136312"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_4_Member"
      decimals="INF"
      id="ixv-136313"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_5_Member"
      decimals="INF"
      id="ixv-136314"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_6_Member"
      decimals="INF"
      id="ixv-136315"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_7_Member"
      decimals="INF"
      id="ixv-136316"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_8_Member"
      decimals="INF"
      id="ixv-136317"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171932_TH_9_Member"
      decimals="INF"
      id="ixv-136318"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000171932_ClassMember" id="ixv-10418">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; U.S. Low Volatility Equity Fund merged into Fidelity&#xae; Low Volatility Factor ETF on May 8, 2026.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000171932_ClassMember" id="ixv-10424">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000171932_ClassMember" id="ixv-10426">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000171932_ClassMember" id="ixv-10429">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000171932_ClassMember" id="ixv-10433">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-10499">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:FundName contextRef="C000171930_ClassMember" id="ixv-10511">Fidelity&#xae; High Dividend ETF</oef:FundName>
    <oef:ClassName contextRef="C000171930_ClassMember" id="ixv-10514">Fidelity&#xae; High Dividend ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000171930_ClassMember" id="ixv-10518">FDVV</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000171930_ClassMember" id="ixv-136319">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171930_ClassMember" id="ixv-10539">This annual shareholder report contains information about Fidelity&#xae; High Dividend ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171930_ClassMember" id="ixv-10541">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171930_ClassMember" id="ixv-10546">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171930_ClassMember" id="ixv-10548">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171930_ClassMember" id="ixv-10551">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171930_ClassMember" id="ixv-10554">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171930_ClassMember" id="ixv-10561">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; High Dividend ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000171930_ClassMember"
      decimals="0"
      id="ixv-136320"
      unitRef="usd">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000171930_ClassMember"
      decimals="INF"
      id="ixv-136321"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000171930_ClassMember" id="ixv-10604">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained 25% and contributed most to the fund's performance for the fiscal year, driven by the technology hardware &amp;amp; equipment industry (+72%). Financials, which gained about 26%, also helped, benefiting from the banks industry (+36%), as did energy, which advanced 22%. The utilities sector rose roughly 18%, while consumer staples gained 12% and real estate advanced approximately 17%. Other contributors included the health care (+46%), industrials (+35%), communication services (+23%) and materials (+64%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, consumer discretionary returned approximately 7% and detracted most. This group was hampered by the consumer durables &amp;amp; apparel industry (-47%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the top contributor was Apple (+49%), from the technology hardware &amp;amp; equipment category. From the same category, Dell Technologies (+211%) lifted the fund. Broadcom (+34%) and NVIDIA (+13%), from the semiconductors &amp;amp; semiconductor equipment category, lifted the fund. Lastly, Alphabet (+86%), from the media &amp;amp; entertainment category, also boosted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor was Whirlpool (-53%), from the consumer durables &amp;amp; apparel industry. From the same industry, NIKE returned approximately -43% and hurt. Another notable detractor was Microsoft (-12%), a stock in the software &amp;amp; services group. In consumer discretionary distribution &amp;amp; retail, Lowe's returned -5% and hindered the fund. Lastly, Blackstone, within the financial services group, returned about -23% and also detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171930_ClassMember" id="ixv-10625">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; High Dividend ETF


$10,000

$10,961


$12,739


$13,269


$12,667


$18,040


$18,839


$21,140


$25,581


$29,090


$35,040



Fidelity High Dividend Index&#x2120;


$10,000

$10,996


$12,826


$13,410


$12,818


$18,315


$19,188


$21,596


$26,186


$29,834


$35,990



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000171930_LG_ClassMember_11YR" id="ixv-10644">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; High Dividend ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-136322"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-136323"
      unitRef="usd">10961</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-136324"
      unitRef="usd">12739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-136325"
      unitRef="usd">13269</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136326"
      unitRef="usd">12667</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136327"
      unitRef="usd">18040</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136328"
      unitRef="usd">18839</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136329"
      unitRef="usd">21140</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136330"
      unitRef="usd">25581</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136331"
      unitRef="usd">29090</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136332"
      unitRef="usd">35040</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171930_LG_1_AdditionalIndexMember_11YR"
      id="ixv-10693">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity High Dividend Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136333"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136334"
      unitRef="usd">10996</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136335"
      unitRef="usd">12826</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136336"
      unitRef="usd">13410</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136337"
      unitRef="usd">12818</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136338"
      unitRef="usd">18315</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136339"
      unitRef="usd">19188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136340"
      unitRef="usd">21596</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136341"
      unitRef="usd">26186</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136342"
      unitRef="usd">29834</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136343"
      unitRef="usd">35990</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171930_LG_2_AdditionalIndexMember_11YR"
      id="ixv-10742">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136344"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136345"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136346"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136347"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136348"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136349"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136350"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136351"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136352"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136353"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171930_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136354"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171930_ClassMember" id="ixv-10843">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; High Dividend ETF - NAV &#160;A&#160;

20.45%

14.20%

13.52%


Fidelity High Dividend Index&#x2120; &#160;A

20.63%


14.47%


13.83%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136355"
      unitRef="pure">0.2045</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136356"
      unitRef="pure">0.1420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136357"
      unitRef="pure">0.1352</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136358"
      unitRef="pure">0.2063</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136359"
      unitRef="pure">0.1447</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136360"
      unitRef="pure">0.1383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136361"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136362"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171930_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136363"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171930_Perf_2016-09-12_ClassMember"
      id="ixv-10917">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171930_ClassMember" id="ixv-10927">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171930_ClassMember" id="ixv-10939">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171930_ClassMember" id="ixv-10943">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171930_ClassMember" id="ixv-10949">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,155,013,931&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;99&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;12,449,278&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;36&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171930_InstantMember"
      decimals="0"
      id="ixv-136364"
      unitRef="usd">10155013931</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171930_InstantMember"
      decimals="INF"
      id="ixv-136365"
      unitRef="holding">99</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171930_ClassMember"
      decimals="0"
      id="ixv-136366"
      unitRef="usd">12449278</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171930_ClassMember"
      decimals="INF"
      id="ixv-136367"
      unitRef="pure">0.36</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171930_ClassMember" id="ixv-11024">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

28.0

&#160;


Financials

20.2

&#160;


Consumer Discretionary

13.2

&#160;


Consumer Staples

10.9

&#160;


Real Estate

8.7

&#160;


Utilities

8.6

&#160;


Industrials

3.6

&#160;


Communication Services

3.3

&#160;


Health Care

3.3

&#160;


&#160;




Common Stocks

99.8


Short-Term Investments and Net Other Assets (Liabilities)

0.2




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.2


&#160;






United States

94.0


Italy

2.9


Denmark

1.3


Norway

1.2


Japan

0.4


Singapore

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 94.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Italy - 2.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Denmark - 1.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Norway - 1.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Japan - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Singapore - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171930_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136368"
      unitRef="pure">0.280</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136369"
      unitRef="pure">0.202</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136370"
      unitRef="pure">0.132</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136371"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136372"
      unitRef="pure">0.087</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136373"
      unitRef="pure">0.086</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136374"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136375"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136376"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136377"
      unitRef="pure">0.998</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136378"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_US_Member"
      decimals="INF"
      id="ixv-136379"
      unitRef="pure">0.940</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_IT_Member"
      decimals="INF"
      id="ixv-136380"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_DK_Member"
      decimals="INF"
      id="ixv-136381"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_NO_Member"
      decimals="INF"
      id="ixv-136382"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_JP_Member"
      decimals="INF"
      id="ixv-136383"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_GD_SG_Member"
      decimals="INF"
      id="ixv-136384"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171930_ClassMember" id="ixv-11293">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

6.6


&#160;


Apple Inc

6.2


&#160;


Microsoft Corp

4.9


&#160;


Broadcom Inc

3.1


&#160;


JPMorgan Chase &amp; Co

2.8


&#160;


Dell Technologies Inc Class C

2.7


&#160;


Bank of America Corp

2.0


&#160;


Coca-Cola Co/The

2.0


&#160;


Alphabet Inc Class A

2.0


&#160;


Philip Morris International Inc

1.8


&#160;


&#160;

34.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171930_TH_0_Member"
      decimals="INF"
      id="ixv-136385"
      unitRef="pure">0.066</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_1_Member"
      decimals="INF"
      id="ixv-136386"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_2_Member"
      decimals="INF"
      id="ixv-136387"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_3_Member"
      decimals="INF"
      id="ixv-136388"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_4_Member"
      decimals="INF"
      id="ixv-136389"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_5_Member"
      decimals="INF"
      id="ixv-136390"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_6_Member"
      decimals="INF"
      id="ixv-136391"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_7_Member"
      decimals="INF"
      id="ixv-136392"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_8_Member"
      decimals="INF"
      id="ixv-136393"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171930_TH_9_Member"
      decimals="INF"
      id="ixv-136394"
      unitRef="pure">0.018</oef:PctOfNav>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-11464">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000223344_ClassMember" id="ixv-11468">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000223344_ClassMember" id="ixv-11479">Fidelity&#xae; Fundamental Large Cap Growth ETF</oef:FundName>
    <oef:ClassName contextRef="C000223344_ClassMember" id="ixv-11482">Fidelity&#xae; Fundamental Large Cap Growth ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000223344_ClassMember" id="ixv-11486">FFLG</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000223344_ClassMember" id="ixv-136395">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000223344_ClassMember" id="ixv-11507">This annual shareholder report contains information about Fidelity&#xae; Fundamental Large Cap Growth ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000223344_ClassMember" id="ixv-11509">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000223344_ClassMember" id="ixv-11514">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000223344_ClassMember" id="ixv-11516">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000223344_ClassMember" id="ixv-11519">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000223344_ClassMember" id="ixv-11522">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000223344_ClassMember" id="ixv-11529">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Growth ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.38&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000223344_ClassMember"
      decimals="0"
      id="ixv-136396"
      unitRef="usd">41</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000223344_ClassMember"
      decimals="INF"
      id="ixv-136397"
      unitRef="pure">0.0038</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000223344_ClassMember" id="ixv-11572">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark Russell 1000 Growth Index for the fiscal year, especially within information technology. Stock selection in industrials, primarily within the transportation industry, also boosted relative performance. Also lifting the fund's relative result were stock picks and an underweight in consumer discretionary, primarily within the consumer services industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Sandisk (+871%). This was a position we established this period. A second notable relative contributor was an overweight in Marvell Technology (+142%). An overweight in Micron Technology (+241%) also helped. This period we increased our stake in Micron Technology. The stock was one of the fund's largest holdings at period end.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was stock selection in health care. Picks in communication services, primarily within the media &amp;amp; entertainment industry, also hampered the fund's result. Also hurting our result was an underweight in information technology, primarily within the technology hardware &amp;amp; equipment industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was an underweight in Apple (+49%). The company was one of the fund's biggest holdings. A second notable relative detractor was an underweight in Advanced Micro Devices (+170%). This was a stake we established this period. Another notable relative detractor was an underweight in Lam Research (+211%). This was a position we established this period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include lower allocations to the financials and consumer discretionary sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000223344_ClassMember" id="ixv-11596">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 2, 2021 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Fundamental Large Cap Growth ETF


$10,000

$10,582


$7,245


$8,970


$11,490


$13,905



Russell 1000&#xae; Growth Index


$10,000

$11,336


$9,984


$11,712


$14,866


$18,396



Russell 1000&#xae; Index


$10,000

$11,471


$10,683


$12,066


$14,661


$17,085



&#160;

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000223344_LG_ClassMember_6YR" id="ixv-11615">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Growth ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136398"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136399"
      unitRef="usd">10582</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136400"
      unitRef="usd">7245</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136401"
      unitRef="usd">8970</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136402"
      unitRef="usd">11490</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136403"
      unitRef="usd">13905</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223344_LG_1_AdditionalIndexMember_6YR"
      id="ixv-11644">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Growth Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136404"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136405"
      unitRef="usd">11336</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136406"
      unitRef="usd">9984</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136407"
      unitRef="usd">11712</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136408"
      unitRef="usd">14866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136409"
      unitRef="usd">18396</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000223344_LG_2_AdditionalIndexMember_6YR"
      id="ixv-11673">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136410"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136411"
      unitRef="usd">11471</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136412"
      unitRef="usd">10683</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136413"
      unitRef="usd">12066</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136414"
      unitRef="usd">14661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000223344_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136415"
      unitRef="usd">17085</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000223344_ClassMember" id="ixv-11739">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Fundamental Large Cap Growth ETF - NAV &#160;A&#160;

15.00%

8.61%

8.92%


Russell 1000&#xae; Growth Index &#160;A

8.03%


11.88%


13.32%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


13.78%




A&#160; &#160;From February 2, 2021

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136416"
      unitRef="pure">0.1500</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136417"
      unitRef="pure">0.0861</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136418"
      unitRef="pure">0.0892</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136419"
      unitRef="pure">0.0803</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136420"
      unitRef="pure">0.1188</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136421"
      unitRef="pure">0.1332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136422"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136423"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000223344_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136424"
      unitRef="pure">0.1378</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000223344_Perf_2021-02-02_ClassMember"
      id="ixv-11813">2021-02-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000223344_ClassMember" id="ixv-11823">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000223344_ClassMember" id="ixv-11835">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000223344_ClassMember" id="ixv-11839">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000223344_ClassMember" id="ixv-11845">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;590,063,773&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;98&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,066,754&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;47&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000223344_InstantMember"
      decimals="0"
      id="ixv-136425"
      unitRef="usd">590063773</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000223344_InstantMember"
      decimals="INF"
      id="ixv-136426"
      unitRef="holding">98</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000223344_ClassMember"
      decimals="0"
      id="ixv-136427"
      unitRef="usd">2066754</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000223344_ClassMember"
      decimals="INF"
      id="ixv-136428"
      unitRef="pure">0.47</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000223344_ClassMember" id="ixv-11920">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

49.9

&#160;


Communication Services

17.7

&#160;


Consumer Discretionary

7.9

&#160;


Industrials

7.8

&#160;


Health Care

7.3

&#160;


Financials

3.5

&#160;


Materials

1.1

&#160;


Real Estate

0.8

&#160;


Utilities

0.6

&#160;


Consumer Staples

0.6

&#160;


Energy

0.3

&#160;


&#160;




Common Stocks

97.5


Short-Term Investments and Net Other Assets (Liabilities)

2.5




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 97.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 2.5


&#160;






United States

94.3


Taiwan

2.1


Canada

1.0


Singapore

0.7


Netherlands

0.6


Belgium

0.4


Korea (South)

0.4


Chile

0.4


Luxembourg

0.1


Japan

0.0




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 94.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 2.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Singapore - 0.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Netherlands - 0.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Belgium - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Korea (South) - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Chile - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Luxembourg - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Japan - 0.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223344_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136429"
      unitRef="pure">0.499</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136430"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136431"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136432"
      unitRef="pure">0.078</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136433"
      unitRef="pure">0.073</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136434"
      unitRef="pure">0.035</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136435"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136436"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136437"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136438"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136439"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136440"
      unitRef="pure">0.975</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136441"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_US_Member"
      decimals="INF"
      id="ixv-136442"
      unitRef="pure">0.943</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_TW_Member"
      decimals="INF"
      id="ixv-136443"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_CA_Member"
      decimals="INF"
      id="ixv-136444"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_SG_Member"
      decimals="INF"
      id="ixv-136445"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_NL_Member"
      decimals="INF"
      id="ixv-136446"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_BE_Member"
      decimals="INF"
      id="ixv-136447"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_KR_Member"
      decimals="INF"
      id="ixv-136448"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_CL_Member"
      decimals="INF"
      id="ixv-136449"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_LU_Member"
      decimals="INF"
      id="ixv-136450"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_GD_JP_Member"
      decimals="INF"
      id="ixv-136451"
      unitRef="pure">0.000</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000223344_ClassMember" id="ixv-12259">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

16.3


&#160;


Alphabet Inc Class A

12.6


&#160;


Apple Inc

5.8


&#160;


Eli Lilly &amp; Co

3.3


&#160;


Microsoft Corp

3.3


&#160;


Micron Technology Inc

3.3


&#160;


Broadcom Inc

3.2


&#160;


Amazon.com Inc

2.9


&#160;


Meta Platforms Inc Class A

2.7


&#160;


Taiwan Semiconductor Manufacturing Co Ltd ADR

2.1


&#160;


&#160;

55.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000223344_TH_0_Member"
      decimals="INF"
      id="ixv-136452"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_1_Member"
      decimals="INF"
      id="ixv-136453"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_2_Member"
      decimals="INF"
      id="ixv-136454"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_3_Member"
      decimals="INF"
      id="ixv-136455"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_4_Member"
      decimals="INF"
      id="ixv-136456"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_5_Member"
      decimals="INF"
      id="ixv-136457"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_6_Member"
      decimals="INF"
      id="ixv-136458"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_7_Member"
      decimals="INF"
      id="ixv-136459"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_8_Member"
      decimals="INF"
      id="ixv-136460"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000223344_TH_9_Member"
      decimals="INF"
      id="ixv-136461"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000223344_ClassMember" id="ixv-12384">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000223344_ClassMember" id="ixv-12390">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000223344_ClassMember" id="ixv-12392">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000223344_ClassMember" id="ixv-12395">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000223344_ClassMember" id="ixv-12399">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000223344_ClassMember" id="ixv-12410">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000223344_ClassMember" id="ixv-12417">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-12473">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:FundName contextRef="C000171931_ClassMember" id="ixv-12485">Fidelity&#xae; Dividend ETF for Rising Rates</oef:FundName>
    <oef:ClassName contextRef="C000171931_ClassMember" id="ixv-12488">Fidelity&#xae; Dividend ETF for Rising Rates</oef:ClassName>
    <dei:TradingSymbol contextRef="C000171931_ClassMember" id="ixv-12492">FDRR</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000171931_ClassMember" id="ixv-136462">NYSEArca</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000171931_ClassMember" id="ixv-12513">This annual shareholder report contains information about Fidelity&#xae; Dividend ETF for Rising Rates for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000171931_ClassMember" id="ixv-12515">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000171931_ClassMember" id="ixv-12520">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000171931_ClassMember" id="ixv-12522">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000171931_ClassMember" id="ixv-12525">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000171931_ClassMember" id="ixv-12528">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000171931_ClassMember" id="ixv-12535">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Dividend ETF for Rising Rates&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000171931_ClassMember"
      decimals="0"
      id="ixv-136463"
      unitRef="usd">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000171931_ClassMember"
      decimals="INF"
      id="ixv-136464"
      unitRef="pure">0.0015</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000171931_ClassMember" id="ixv-12578">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, information technology gained 26% and contributed most to the fund's performance for the fiscal year, driven by the technology hardware &amp;amp; equipment industry (+72%). Health care, which gained 47%, also helped, benefiting from the pharmaceuticals, biotechnology &amp;amp; life sciences industry (+48%), as did financials, which advanced about 29%. The industrials sector rose approximately 35%, boosted by the capital goods industry (+41%), while communication services gained roughly 24% and energy advanced 34%. Other contributors included the consumer discretionary (+7%), consumer staples (+12%), real estate (+19%) and utilities (+17%) sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, materials returned about -6% and detracted most.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Turning to individual stocks, the biggest contributor was Apple (+49%), from the technology hardware &amp;amp; equipment industry. From the same group, Dell Technologies (+210%) boosted the fund. In media &amp;amp; entertainment, Alphabet gained roughly 86% and helped. Lastly, in semiconductors &amp;amp; semiconductor equipment, Broadcom (+34%) and NVIDIA (+13%) also lifted the fund.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Conversely, the biggest detractor was Microsoft (-12%), from the software &amp;amp; services category. Within the same industry, Accenture (-21%) hurt. In media &amp;amp; entertainment, Meta Platforms (-27%) hindered the fund. Lastly, NIKE (-43%) and Whirlpool (-53%), from the consumer durables &amp;amp; apparel group, also detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000171931_ClassMember" id="ixv-12599">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
September 12, 2016 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Dividend ETF for Rising Rates


$10,000

$11,485


$13,098


$13,896


$14,154


$19,471


$19,264


$20,838


$24,558


$28,239


$35,277



Fidelity Dividend Index for Rising Rates&#x2120;


$10,000

$11,526


$13,195


$14,045


$14,341


$19,793


$19,650


$21,314


$25,156


$28,972


$36,246



Russell 1000&#xae; Index


$10,000

$11,635


$13,519


$14,600


$16,357


$22,568


$21,017


$23,739


$28,843


$33,613


$39,979



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000171931_LG_ClassMember_11YR" id="ixv-12618">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Dividend ETF for Rising Rates&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-136465"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-136466"
      unitRef="usd">11485</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-136467"
      unitRef="usd">13098</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-136468"
      unitRef="usd">13896</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136469"
      unitRef="usd">14154</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136470"
      unitRef="usd">19471</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136471"
      unitRef="usd">19264</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136472"
      unitRef="usd">20838</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136473"
      unitRef="usd">24558</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136474"
      unitRef="usd">28239</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136475"
      unitRef="usd">35277</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171931_LG_1_AdditionalIndexMember_11YR"
      id="ixv-12667">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Dividend Index for Rising Rates&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136476"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136477"
      unitRef="usd">11526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136478"
      unitRef="usd">13195</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136479"
      unitRef="usd">14045</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136480"
      unitRef="usd">14341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136481"
      unitRef="usd">19793</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136482"
      unitRef="usd">19650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136483"
      unitRef="usd">21314</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136484"
      unitRef="usd">25156</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136485"
      unitRef="usd">28972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136486"
      unitRef="usd">36246</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000171931_LG_2_AdditionalIndexMember_11YR"
      id="ixv-12716">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-136487"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-136488"
      unitRef="usd">11635</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-136489"
      unitRef="usd">13519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-136490"
      unitRef="usd">14600</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136491"
      unitRef="usd">16357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136492"
      unitRef="usd">22568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136493"
      unitRef="usd">21017</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136494"
      unitRef="usd">23739</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136495"
      unitRef="usd">28843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136496"
      unitRef="usd">33613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000171931_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136497"
      unitRef="usd">39979</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000171931_ClassMember" id="ixv-12817">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Dividend ETF for Rising Rates - NAV &#160;A&#160;

24.93%

12.62%

13.60%


Fidelity Dividend Index for Rising Rates&#x2120; &#160;A

25.11%


12.86%


13.91%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


15.04%




A&#160; &#160;From September 12, 2016

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136498"
      unitRef="pure">0.2493</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136499"
      unitRef="pure">0.1262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136500"
      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136501"
      unitRef="pure">0.2511</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136502"
      unitRef="pure">0.1286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136503"
      unitRef="pure">0.1391</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136504"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136505"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000171931_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136506"
      unitRef="pure">0.1504</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000171931_Perf_2016-09-12_ClassMember"
      id="ixv-12891">2016-09-12</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000171931_ClassMember" id="ixv-12901">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000171931_ClassMember" id="ixv-12913">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000171931_ClassMember" id="ixv-12917">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000171931_ClassMember" id="ixv-12923">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;736,568,812&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;114&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;990,611&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;23&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000171931_InstantMember"
      decimals="0"
      id="ixv-136507"
      unitRef="usd">736568812</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000171931_InstantMember"
      decimals="INF"
      id="ixv-136508"
      unitRef="holding">114</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000171931_ClassMember"
      decimals="0"
      id="ixv-136509"
      unitRef="usd">990611</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000171931_ClassMember"
      decimals="INF"
      id="ixv-136510"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000171931_ClassMember" id="ixv-12998">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

34.7

&#160;


Financials

13.2

&#160;


Industrials

10.1

&#160;


Health Care

9.9

&#160;


Communication Services

9.3

&#160;


Consumer Discretionary

7.9

&#160;


Consumer Staples

4.7

&#160;


Energy

3.4

&#160;


Utilities

2.1

&#160;


Real Estate

2.1

&#160;


Materials

2.0

&#160;


&#160;




Common Stocks

99.4


Short-Term Investments and Net Other Assets (Liabilities)

0.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.6


&#160;






United States

95.2


Italy

1.7


Japan

1.1


Denmark

0.7


Germany

0.6


Norway

0.4


Australia

0.2


Mexico

0.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 95.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Italy - 1.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Japan - 1.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Denmark - 0.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Germany - 0.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Norway - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Australia - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Mexico - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171931_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136511"
      unitRef="pure">0.347</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136512"
      unitRef="pure">0.132</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136513"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136514"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136515"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136516"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136517"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136518"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136519"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136520"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136521"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136522"
      unitRef="pure">0.994</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136523"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_US_Member"
      decimals="INF"
      id="ixv-136524"
      unitRef="pure">0.952</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_IT_Member"
      decimals="INF"
      id="ixv-136525"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_JP_Member"
      decimals="INF"
      id="ixv-136526"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_DK_Member"
      decimals="INF"
      id="ixv-136527"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_DE_Member"
      decimals="INF"
      id="ixv-136528"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_NO_Member"
      decimals="INF"
      id="ixv-136529"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_AU_Member"
      decimals="INF"
      id="ixv-136530"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_GD_MX_Member"
      decimals="INF"
      id="ixv-136531"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000171931_ClassMember" id="ixv-13311">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

8.1


&#160;


Apple Inc

7.6


&#160;


Microsoft Corp

6.0


&#160;


Alphabet Inc Class A

5.4


&#160;


Broadcom Inc

3.8


&#160;


Dell Technologies Inc Class C

3.2


&#160;


JPMorgan Chase &amp; Co

2.2


&#160;


Eli Lilly &amp; Co

2.0


&#160;


Cisco Systems Inc

2.0


&#160;


Meta Platforms Inc Class A

1.8


&#160;


&#160;

42.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000171931_TH_0_Member"
      decimals="INF"
      id="ixv-136532"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_1_Member"
      decimals="INF"
      id="ixv-136533"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_2_Member"
      decimals="INF"
      id="ixv-136534"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_3_Member"
      decimals="INF"
      id="ixv-136535"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_4_Member"
      decimals="INF"
      id="ixv-136536"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_5_Member"
      decimals="INF"
      id="ixv-136537"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_6_Member"
      decimals="INF"
      id="ixv-136538"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_7_Member"
      decimals="INF"
      id="ixv-136539"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_8_Member"
      decimals="INF"
      id="ixv-136540"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000171931_TH_9_Member"
      decimals="INF"
      id="ixv-136541"
      unitRef="pure">0.018</oef:PctOfNav>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-13482">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000218331_ClassMember" id="ixv-13486">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000218331_ClassMember" id="ixv-13497">Fidelity&#xae; Blue Chip Value ETF</oef:FundName>
    <oef:ClassName contextRef="C000218331_ClassMember" id="ixv-13500">Fidelity&#xae; Blue Chip Value ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000218331_ClassMember" id="ixv-13504">FBCV</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000218331_ClassMember" id="ixv-136542">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000218331_ClassMember" id="ixv-13525">This annual shareholder report contains information about Fidelity&#xae; Blue Chip Value ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000218331_ClassMember" id="ixv-13527">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000218331_ClassMember" id="ixv-13532">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000218331_ClassMember" id="ixv-13534">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000218331_ClassMember" id="ixv-13537">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000218331_ClassMember" id="ixv-13540">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000218331_ClassMember" id="ixv-13547">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Blue Chip Value ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;66&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.57&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000218331_ClassMember"
      decimals="0"
      id="ixv-136543"
      unitRef="usd">66</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000218331_ClassMember"
      decimals="INF"
      id="ixv-136544"
      unitRef="pure">0.0057</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000218331_ClassMember" id="ixv-13590">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary contributor to the fund's performance versus the Russell 1000 Value Index for the fiscal year, led by the financials sector. Picks in health care and communication services also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Alphabet (+82%), the fund's biggest holding this period. An overweight in Ross Stores (+86%) also helped. This period we decreased our investment in the stock. Our stake in Cisco Systems (+73%) also contributed. Although we reduced exposure to the firm, it remained one of the fund's biggest holdings this period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the largest detractors from performance versus the benchmark were stock selection and an underweight in information technology. Picks and an overweight in consumer staples also hampered the fund's result, as did an overweight in financials, primarily within the insurance industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The largest individual relative detractor this period was avoiding Sandisk, a strong-performing benchmark component. Stakes in Applied Materials (-3%) and Advanced Micro Devices (-19%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the information technology and consumer discretionary sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000218331_ClassMember" id="ixv-13614">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 2, 2020 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Blue Chip Value ETF


$10,000

$10,123


$14,459


$14,642


$15,426


$17,157


$18,105



Russell 1000&#xae; Value Index


$10,000

$10,170


$14,169


$13,967


$15,124


$17,362


$18,888



Russell 1000&#xae; Index


$10,000

$10,678


$14,731


$13,719


$15,496


$18,828


$21,941



&#160;

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000218331_LG_ClassMember_7YR" id="ixv-13633">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Blue Chip Value ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136545"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136546"
      unitRef="usd">10123</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136547"
      unitRef="usd">14459</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136548"
      unitRef="usd">14642</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136549"
      unitRef="usd">15426</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136550"
      unitRef="usd">17157</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136551"
      unitRef="usd">18105</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218331_LG_1_AdditionalIndexMember_7YR"
      id="ixv-13666">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136552"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136553"
      unitRef="usd">10170</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136554"
      unitRef="usd">14169</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136555"
      unitRef="usd">13967</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136556"
      unitRef="usd">15124</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136557"
      unitRef="usd">17362</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136558"
      unitRef="usd">18888</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218331_LG_2_AdditionalIndexMember_7YR"
      id="ixv-13699">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136559"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136560"
      unitRef="usd">10678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136561"
      unitRef="usd">14731</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136562"
      unitRef="usd">13719</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136563"
      unitRef="usd">15496</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136564"
      unitRef="usd">18828</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218331_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136565"
      unitRef="usd">21941</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000218331_ClassMember" id="ixv-13772">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Blue Chip Value ETF - NAV &#160;A&#160;

31.08%

10.42%

15.05%


Russell 1000&#xae; Value Index &#160;A

31.19%


11.83%


15.86%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


16.84%




A&#160; &#160;From June 2, 2020

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136566"
      unitRef="pure">0.3108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136567"
      unitRef="pure">0.1042</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136568"
      unitRef="pure">0.1505</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136569"
      unitRef="pure">0.3119</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136570"
      unitRef="pure">0.1183</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136571"
      unitRef="pure">0.1586</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136572"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136573"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218331_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136574"
      unitRef="pure">0.1684</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000218331_Perf_2020-06-02_ClassMember"
      id="ixv-13846">2020-06-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000218331_ClassMember" id="ixv-13856">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000218331_ClassMember" id="ixv-13868">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000218331_ClassMember" id="ixv-13872">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000218331_ClassMember" id="ixv-13878">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;177,053,548&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;120&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;866,648&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000218331_InstantMember"
      decimals="0"
      id="ixv-136575"
      unitRef="usd">177053548</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000218331_InstantMember"
      decimals="INF"
      id="ixv-136576"
      unitRef="holding">120</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000218331_ClassMember"
      decimals="0"
      id="ixv-136577"
      unitRef="usd">866648</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000218331_ClassMember"
      decimals="INF"
      id="ixv-136578"
      unitRef="pure">0.94</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000218331_ClassMember" id="ixv-13953">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Financials

19.5

&#160;


Information Technology

15.1

&#160;


Health Care

14.8

&#160;


Consumer Discretionary

12.5

&#160;


Industrials

10.2

&#160;


Consumer Staples

8.1

&#160;


Energy

7.8

&#160;


Communication Services

4.2

&#160;


Materials

3.7

&#160;


Utilities

1.7

&#160;


Real Estate

0.7

&#160;


&#160;




Common Stocks

98.3


Short-Term Investments and Net Other Assets (Liabilities)

1.7




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 98.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 1.7


&#160;






United States

93.2


United Kingdom

4.1


Canada

1.3


Taiwan

0.5


Switzerland

0.5


Ireland

0.4




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 93.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 4.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Switzerland - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Ireland - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000218331_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136579"
      unitRef="pure">0.195</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-136580"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136581"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-136582"
      unitRef="pure">0.125</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-136583"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-136584"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136585"
      unitRef="pure">0.078</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-136586"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136587"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136588"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-136589"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136590"
      unitRef="pure">0.983</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-136591"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_US_Member"
      decimals="INF"
      id="ixv-136592"
      unitRef="pure">0.932</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_GB_Member"
      decimals="INF"
      id="ixv-136593"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_CA_Member"
      decimals="INF"
      id="ixv-136594"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_TW_Member"
      decimals="INF"
      id="ixv-136595"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_CH_Member"
      decimals="INF"
      id="ixv-136596"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_GD_IE_Member"
      decimals="INF"
      id="ixv-136597"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000218331_ClassMember" id="ixv-14240">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Amazon.com Inc

7.5


&#160;


Microsoft Corp

5.2


&#160;


Apple Inc

4.6


&#160;


ExxonMobil Holdings Corp

3.4


&#160;


Bank of America Corp

2.6


&#160;


State Street Institutional Treasury Plus Money Market Fund Trust Class

2.3


&#160;


Merck &amp; Co Inc

2.3


&#160;


Travelers Companies Inc/The

2.2


&#160;


Shell PLC ADR

1.9


&#160;


Keurig Dr Pepper Inc

1.9


&#160;


&#160;

33.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000218331_TH_0_Member"
      decimals="INF"
      id="ixv-136598"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_1_Member"
      decimals="INF"
      id="ixv-136599"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_2_Member"
      decimals="INF"
      id="ixv-136600"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_3_Member"
      decimals="INF"
      id="ixv-136601"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_4_Member"
      decimals="INF"
      id="ixv-136602"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_5_Member"
      decimals="INF"
      id="ixv-136603"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_6_Member"
      decimals="INF"
      id="ixv-136604"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_7_Member"
      decimals="INF"
      id="ixv-136605"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_8_Member"
      decimals="INF"
      id="ixv-136606"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218331_TH_9_Member"
      decimals="INF"
      id="ixv-136607"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000218331_ClassMember" id="ixv-14365">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&#160;&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000218331_ClassMember" id="ixv-14371">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000218331_ClassMember" id="ixv-14373">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000218331_ClassMember" id="ixv-14376">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000218331_ClassMember" id="ixv-14380">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000218331_ClassMember" id="ixv-14391">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&#160;&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000218331_ClassMember" id="ixv-14400">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-14456">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000218329_ClassMember" id="ixv-14460">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000218329_ClassMember" id="ixv-14471">Fidelity&#xae; Blue Chip Growth ETF</oef:FundName>
    <oef:ClassName contextRef="C000218329_ClassMember" id="ixv-14474">Fidelity&#xae; Blue Chip Growth ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000218329_ClassMember" id="ixv-14478">FBCG</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000218329_ClassMember" id="ixv-136608">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000218329_ClassMember" id="ixv-14499">This annual shareholder report contains information about Fidelity&#xae; Blue Chip Growth ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000218329_ClassMember" id="ixv-14501">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000218329_ClassMember" id="ixv-14506">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000218329_ClassMember" id="ixv-14508">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000218329_ClassMember" id="ixv-14511">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000218329_ClassMember" id="ixv-14514">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000218329_ClassMember" id="ixv-14521">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Blue Chip Growth ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;62&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.57&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000218329_ClassMember"
      decimals="0"
      id="ixv-136609"
      unitRef="usd">62</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000218329_ClassMember"
      decimals="INF"
      id="ixv-136610"
      unitRef="pure">0.0057</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000218329_ClassMember" id="ixv-14564">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark Russell 1000 Growth Index for the fiscal year, led by information technology. Security selection in consumer discretionary, primarily within the consumer discretionary distribution &amp;amp; retail industry, and industrials also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Marvell Technology (+130%). This period we decreased our investment in Marvell Technology. The company was among our largest holdings this period. The second-largest relative contributor was our stake in Micron Technology (+408%). This period we increased our position in Micron Technology. The stock was one of our biggest holdings at period end. An underweight in Microsoft (-12%) also contributed. The company was among our biggest holdings.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was security selection in communication services, primarily within the media &amp;amp; entertainment industry. Also hurting our result were an overweight in consumer discretionary and an underweight in health care, primarily within the pharmaceuticals, biotechnology &amp;amp; life sciences industry.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was an underweight in Lam Research (+211%). This was a stake we established this period. The second-largest relative detractor was an underweight in Advanced Micro Devices (+170%). This was a position we established this period. Another notable relative detractor was our stake in Netflix (-38%). This period we decreased our stake in Netflix. The stock was among the fund's biggest holdings this period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the financials sector and a higher allocation to industrials.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000218329_ClassMember" id="ixv-14588">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 2, 2020 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Blue Chip Growth ETF


$10,000

$11,368


$16,387


$12,467


$15,639


$20,515


$25,243



Russell 1000&#xae; Growth Index


$10,000

$11,108


$15,182


$13,371


$15,685


$19,910


$24,638



Russell 1000&#xae; Index


$10,000

$10,678


$14,731


$13,719


$15,496


$18,828


$21,941



&#160;

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000218329_LG_ClassMember_7YR" id="ixv-14607">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Blue Chip Growth ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-136611"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-136612"
      unitRef="usd">11368</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-136613"
      unitRef="usd">16387</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-136614"
      unitRef="usd">12467</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136615"
      unitRef="usd">15639</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136616"
      unitRef="usd">20515</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136617"
      unitRef="usd">25243</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218329_LG_1_AdditionalIndexMember_7YR"
      id="ixv-14640">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Growth Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136618"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136619"
      unitRef="usd">11108</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136620"
      unitRef="usd">15182</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136621"
      unitRef="usd">13371</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136622"
      unitRef="usd">15685</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136623"
      unitRef="usd">19910</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136624"
      unitRef="usd">24638</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000218329_LG_2_AdditionalIndexMember_7YR"
      id="ixv-14673">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-136625"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-136626"
      unitRef="usd">10678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-136627"
      unitRef="usd">14731</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-136628"
      unitRef="usd">13719</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136629"
      unitRef="usd">15496</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136630"
      unitRef="usd">18828</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000218329_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136631"
      unitRef="usd">21941</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000218329_ClassMember" id="ixv-14746">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund


Fidelity&#xae; Blue Chip Growth ETF - NAV &#160;A&#160;

18.65%

12.82%

19.48%


Russell 1000&#xae; Growth Index &#160;A

8.03%


11.88%


17.21%


Russell 1000&#xae; Index &#160;A

18.94%


12.12%


16.84%




A&#160; &#160;From June 2, 2020

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136632"
      unitRef="pure">0.1865</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-136633"
      unitRef="pure">0.1282</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136634"
      unitRef="pure">0.1948</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136635"
      unitRef="pure">0.0803</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-136636"
      unitRef="pure">0.1188</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136637"
      unitRef="pure">0.1721</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136638"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-136639"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000218329_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136640"
      unitRef="pure">0.1684</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000218329_Perf_2020-06-02_ClassMember"
      id="ixv-14820">2020-06-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000218329_ClassMember" id="ixv-14830">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000218329_ClassMember" id="ixv-14842">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000218329_ClassMember" id="ixv-14846">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000218329_ClassMember" id="ixv-14852">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;6,919,929,590&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;207&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;31,950,386&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;61&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000218329_InstantMember"
      decimals="0"
      id="ixv-136641"
      unitRef="usd">6919929590</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000218329_InstantMember"
      decimals="INF"
      id="ixv-136642"
      unitRef="holding">207</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000218329_ClassMember"
      decimals="0"
      id="ixv-136643"
      unitRef="usd">31950386</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000218329_ClassMember"
      decimals="INF"
      id="ixv-136644"
      unitRef="pure">0.61</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000218329_ClassMember" id="ixv-14927">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Information Technology

54.5

&#160;


Consumer Discretionary

14.2

&#160;


Communication Services

13.4

&#160;


Industrials

6.5

&#160;


Health Care

6.2

&#160;


Financials

2.6

&#160;


Consumer Staples

1.2

&#160;


Real Estate

0.7

&#160;


Materials

0.4

&#160;


Energy

0.2

&#160;


Utilities

0.1

&#160;


&#160;




Common Stocks

100.0


Short-Term Investments and Net Other Assets (Liabilities)

0.0




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 100.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.0


&#160;






United States

95.6


Canada

1.5


Taiwan

1.2


Netherlands

0.5


Korea (South)

0.4


Finland

0.2


United Kingdom

0.2


Singapore

0.1


Zambia

0.1


Others

0.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 95.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 1.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Netherlands - 0.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Korea (South) - 0.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Finland - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Singapore - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Zambia - 0.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Others - 0.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
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      id="ixv-136645"
      unitRef="pure">0.545</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-136646"
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      contextRef="C000218329_MS_CommunicationsSectorMember"
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      decimals="INF"
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      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-136649"
      unitRef="pure">0.062</oef:PctOfNav>
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      contextRef="C000218329_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-136650"
      unitRef="pure">0.026</oef:PctOfNav>
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      decimals="INF"
      id="ixv-136652"
      unitRef="pure">0.007</oef:PctOfNav>
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      contextRef="C000218329_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-136653"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-136654"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-136655"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136656"
      unitRef="pure">1.000</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136657"
      unitRef="pure">0.000</oef:PctOfNav>
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      contextRef="C000218329_GD_US_Member"
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      id="ixv-136658"
      unitRef="pure">0.956</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_GD_CA_Member"
      decimals="INF"
      id="ixv-136659"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_GD_TW_Member"
      decimals="INF"
      id="ixv-136660"
      unitRef="pure">0.012</oef:PctOfNav>
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      contextRef="C000218329_GD_NL_Member"
      decimals="INF"
      id="ixv-136661"
      unitRef="pure">0.005</oef:PctOfNav>
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      contextRef="C000218329_GD_KR_Member"
      decimals="INF"
      id="ixv-136662"
      unitRef="pure">0.004</oef:PctOfNav>
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      id="ixv-136663"
      unitRef="pure">0.002</oef:PctOfNav>
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      decimals="INF"
      id="ixv-136664"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136665"
      unitRef="pure">0.001</oef:PctOfNav>
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      decimals="INF"
      id="ixv-136666"
      unitRef="pure">0.001</oef:PctOfNav>
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      decimals="INF"
      id="ixv-136667"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000218329_ClassMember" id="ixv-15266">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


NVIDIA Corp

15.0


&#160;


Apple Inc

9.4


&#160;


Alphabet Inc Class A

9.3


&#160;


Amazon.com Inc

5.8


&#160;


Microsoft Corp

5.0


&#160;


Broadcom Inc

4.5


&#160;


Eli Lilly &amp; Co

2.7


&#160;


Meta Platforms Inc Class A

2.3


&#160;


Micron Technology Inc

2.0


&#160;


Western Digital Corp

1.6


&#160;


&#160;

57.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-136668"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_1_Member"
      decimals="INF"
      id="ixv-136669"
      unitRef="pure">0.094</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_2_Member"
      decimals="INF"
      id="ixv-136670"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_3_Member"
      decimals="INF"
      id="ixv-136671"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_4_Member"
      decimals="INF"
      id="ixv-136672"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_5_Member"
      decimals="INF"
      id="ixv-136673"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_6_Member"
      decimals="INF"
      id="ixv-136674"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_7_Member"
      decimals="INF"
      id="ixv-136675"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_8_Member"
      decimals="INF"
      id="ixv-136676"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000218329_TH_9_Member"
      decimals="INF"
      id="ixv-136677"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000218329_ClassMember" id="ixv-15391">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000218329_ClassMember" id="ixv-15397">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000218329_ClassMember" id="ixv-15399">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000218329_ClassMember" id="ixv-15402">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000218329_ClassMember" id="ixv-15406">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000218329_ClassMember" id="ixv-15417">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000218329_ClassMember" id="ixv-15426">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-15482">2026-07-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000248142_ClassMember" id="ixv-15486">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000248142_ClassMember" id="ixv-15497">Fidelity&#xae; Fundamental Large Cap Value ETF</oef:FundName>
    <oef:ClassName contextRef="C000248142_ClassMember" id="ixv-15500">Fidelity&#xae; Fundamental Large Cap Value ETF</oef:ClassName>
    <dei:TradingSymbol contextRef="C000248142_ClassMember" id="ixv-15504">FFLV</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C000248142_ClassMember" id="ixv-136678">CboeBZX</dei:SecurityExchangeName>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000248142_ClassMember" id="ixv-15525">This annual shareholder report contains information about Fidelity&#xae; Fundamental Large Cap Value ETF for the period August 1, 2025 to July 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000248142_ClassMember" id="ixv-15527">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000248142_ClassMember" id="ixv-15532">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000248142_ClassMember" id="ixv-15534">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000248142_ClassMember" id="ixv-15537">1-800-FIDELITY</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000248142_ClassMember" id="ixv-15540">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000248142_ClassMember" id="ixv-15547">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Value ETF&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;44&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.38&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000248142_ClassMember"
      decimals="0"
      id="ixv-136679"
      unitRef="usd">44</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000248142_ClassMember"
      decimals="INF"
      id="ixv-136680"
      unitRef="pure">0.0038</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000248142_ClassMember" id="ixv-15590">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. stocks achieved a strong gain for the 12 months ending July 31, 2026, reflecting enthusiasm for artificial intelligence, strong corporate fundamentals, a resilient economy and, beginning in September, the Federal Reserve's first interest-rate reductions since December 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark Russell 1000 Index for the fiscal year, especially within financials. Stock picks in communication services, primarily within the media &amp;amp; entertainment industry, and consumer discretionary, primarily within the consumer durables &amp;amp; apparel industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Western Digital (+592%). The second-largest relative contributor was an overweight in Cisco Systems (+73%). This period we decreased our position in Cisco Systems. The stock was one of the fund's largest holdings. Another notable relative contributor was an underweight in Berkshire Hathaway (+8%). This period we decreased our position in Berkshire Hathaway.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractors from performance versus the benchmark were stock selection and an underweight in information technology, primarily within the semiconductors &amp;amp; semiconductor equipment industry. Also hurting our result was stock picking in utilities and materials. Lastly, the fund's position in cash detracted.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our stake in Micron Technology (+179%). A second notable relative detractor was an underweight in Intel (+356%). This was a position we established this period. Another notable relative detractor this period was avoiding Sandisk, a benchmark component that gained 2,730%.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer discretionary sector and a lower allocation to communication services.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000248142_ClassMember" id="ixv-15614">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 22, 2024 through July 31, 2026. 
Initial investment of $10,000.
Fidelity&#xae; Fundamental Large Cap Value ETF


$10,023

$10,678


$11,244



Russell 1000&#xae; Value Index


$10,056

$10,858


$11,813



Russell 1000&#xae; Index


$10,032

$10,879


$12,679



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000248142_LG_ClassMember_3YR" id="ixv-15633">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Fundamental Large Cap Value ETF&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000248142_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-136681"
      unitRef="usd">10023</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-136682"
      unitRef="usd">10678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-136683"
      unitRef="usd">11244</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000248142_LG_1_AdditionalIndexMember_3YR"
      id="ixv-15650">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000248142_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136684"
      unitRef="usd">10056</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136685"
      unitRef="usd">10858</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136686"
      unitRef="usd">11813</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000248142_LG_2_AdditionalIndexMember_3YR"
      id="ixv-15667">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 1000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000248142_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-136687"
      unitRef="usd">10032</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-136688"
      unitRef="usd">10879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000248142_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-136689"
      unitRef="usd">12679</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000248142_ClassMember" id="ixv-15712">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund


Fidelity&#xae; Fundamental Large Cap Value ETF - NAV &#160;A&#160;

31.51%

17.40%


Russell 1000&#xae; Value Index &#160;A

31.19%


19.68%


Russell 1000&#xae; Index &#160;A

18.94%


18.35%




A&#160; &#160;From February 22, 2024

&#160;
Visit www.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-136690"
      unitRef="pure">0.3151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_NoLoadClassMember_2025-08-01_2026-07-31"
      decimals="INF"
      id="ixv-136691"
      unitRef="pure">0.1740</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-136692"
      unitRef="pure">0.3119</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-136693"
      unitRef="pure">0.1968</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-136694"
      unitRef="pure">0.1894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000248142_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-136695"
      unitRef="pure">0.1835</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000248142_Perf_2024-02-22_ClassMember"
      id="ixv-15772">2024-02-22</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000248142_ClassMember" id="ixv-15782">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000248142_ClassMember" id="ixv-15794">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000248142_ClassMember" id="ixv-15798">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000248142_ClassMember" id="ixv-15804">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of July 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,443,629&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;112&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;53,220&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;30&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-136696"
      unitRef="usd">16443629</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="ixv-136697"
      unitRef="holding">112</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      unitRef="usd">53220</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-136699"
      unitRef="pure">0.30</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000248142_ClassMember" id="ixv-15879">
&#160;
&#160;
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Financials

19.7

&#160;


Information Technology

17.3

&#160;


Consumer Discretionary

12.9

&#160;


Health Care

12.2

&#160;


Industrials

11.3

&#160;


Energy

7.3

&#160;


Consumer Staples

6.1

&#160;


Materials

4.2

&#160;


Utilities

3.4

&#160;


Communication Services

2.8

&#160;


Real Estate

2.7

&#160;


&#160;




Common Stocks

99.9


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Common Stocks - 99.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






United States

95.1


United Kingdom

2.1


Taiwan

1.7


Canada

1.1




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;



&#160;

United States - 95.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

United Kingdom - 2.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Taiwan - 1.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Canada - 1.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;




&#160;




&#160;
&#160;
</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-136700"
      unitRef="pure">0.197</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136702"
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    <oef:PctOfNav
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    <oef:PctOfNav
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      id="ixv-136706"
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      unitRef="pure">0.042</oef:PctOfNav>
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      id="ixv-136708"
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      id="ixv-136709"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136710"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-136711"
      unitRef="pure">0.999</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136712"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-136713"
      unitRef="pure">0.951</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_GD_GB_Member"
      decimals="INF"
      id="ixv-136714"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_GD_TW_Member"
      decimals="INF"
      id="ixv-136715"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_GD_CA_Member"
      decimals="INF"
      id="ixv-136716"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000248142_ClassMember" id="ixv-16140">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Amazon.com Inc

7.3


&#160;


Apple Inc

4.8


&#160;


Microsoft Corp

4.5


&#160;


ExxonMobil Holdings Corp

3.9


&#160;


Wells Fargo &amp; Co

2.6


&#160;


Bank of America Corp

2.3


&#160;


Travelers Companies Inc/The

2.3


&#160;


Merck &amp; Co Inc

2.1


&#160;


Cisco Systems Inc

2.0


&#160;


Johnson &amp; Johnson

1.8


&#160;


&#160;

33.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000248142_TH_0_Member"
      decimals="INF"
      id="ixv-136717"
      unitRef="pure">0.073</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_1_Member"
      decimals="INF"
      id="ixv-136718"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_2_Member"
      decimals="INF"
      id="ixv-136719"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_3_Member"
      decimals="INF"
      id="ixv-136720"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_4_Member"
      decimals="INF"
      id="ixv-136721"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_5_Member"
      decimals="INF"
      id="ixv-136722"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_6_Member"
      decimals="INF"
      id="ixv-136723"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_7_Member"
      decimals="INF"
      id="ixv-136724"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_8_Member"
      decimals="INF"
      id="ixv-136725"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000248142_TH_9_Member"
      decimals="INF"
      id="ixv-136726"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000248142_ClassMember" id="ixv-16265">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000248142_ClassMember" id="ixv-16271">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by November 28, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000248142_ClassMember" id="ixv-16273">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000248142_ClassMember" id="ixv-16276">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-FIDELITY&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000248142_ClassMember" id="ixv-16280">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000248142_ClassMember" id="ixv-16291">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000248142_ClassMember" id="ixv-16298">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
</xbrl>
