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Fidelity® Total Bond ETF Fidelity® Total Bond ETF FBND NYSEArca This annual shareholder report contains information about Fidelity® Total Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Total Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 36 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, allocations to "plus sectors", led by high-yield bonds, emerging-markets debt and global bonds, notably contributed to the fund's performance versus the benchmark Bloomberg U.S. Aggregate Bond Index for the fiscal year.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Non-benchmark exposure to leveraged loans and high-yield commercial mortgage-backed securities also provided a boost to performance versus the benchmark.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Among investment-grade bonds, overweight holdings and investment choices among asset-backed securities, particularly collateralized loan obligations, and commercial mortgage-backed securities each added modest value.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, underweight holdings in investment-grade corporate bonds, particularly below-benchmark exposure to industrials, detracted from the fund's relative performance. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An underweight in mortgage-backed securities modestly hurt as well. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Notable changes over the past 12 months included management's decision to gradually lower the fund's overall risk profile by slightly reducing exposure to investment-grade corporate bonds and increasing the allocation to mortgage-backed securities in the second half of the period.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE August 31, 2016 through August 31, 2026. Initial investment of $10,000. Fidelity® Total Bond ETF $10,000 $10,198 $10,128 $11,113 $12,013 $12,241 $10,855 $10,877 $11,774 $12,230 $12,494 Bloomberg U.S. Aggregate Bond Index $10,000 $10,049 $9,944 $10,955 $11,665 $11,655 $10,313 $10,189 $10,933 $11,276 $11,489   2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Total Bond ETF</span> 10000 10198 10128 11113 12013 12241 10855 10877 11774 12230 12494 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10049 9944 10955 11665 11655 10313 10189 10933 11276 11489 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Total Bond ETF - NAV  2.15% 0.41% 2.25% Bloomberg U.S. Aggregate Bond Index 1.89% -0.29% 1.40%     Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0215 0.0041 0.0225 0.0189 -0.0029 0.0140 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>28,156,308,352</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">4,767</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>88,315,750</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">157<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 28156308352 4767 88315750 1.57   U.S. Government and U.S. Government Agency Obligations 54.3 AAA 5.5 AA 0.5 A 8.8 BBB 15.1 BB 4.1 B 4.8 CCC,CC,C 0.7 D 0.0 Not Rated 8.2 Equities 0.0 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 54.3   AAA - 5.5                                  AA - 0.5                                   A - 8.8                                    BBB - 15.1                                 BB - 4.1                                   B - 4.8                                    CCC,CC,C - 0.7                             D - 0.0                                    Not Rated - 8.2                            Equities - 0.0                           Short-Term Investments and Net Other Assets (Liabilities) - (2.0)%   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         U.S. Treasury Obligations 37.9 Corporate Bonds 25.6 U.S. Government Agency - Mortgage Securities 16.4 Asset-Backed Securities 8.6 CMOs and Other Mortgage Related Securities 6.8 Bank Loan Obligations 5.2 Foreign Government and Government Agency Obligations 1.3 Preferred Securities 0.2 Options 0.0 Preferred Stocks 0.0 Other Investments 0.0 Common Stocks 0.0 ASSET ALLOCATION (% of Fund's net assets)     U.S. Treasury Obligations - 37.9           Corporate Bonds - 25.6                     U.S. Government Agency - Mortgage Securities - 16.4   Asset-Backed Securities - 8.6              CMOs and Other Mortgage Related Securities - 6.8   Bank Loan Obligations - 5.2                Foreign Government and Government Agency Obligations - 1.3   Preferred Securities - 0.2                 Options - 0.0                              Preferred Stocks - 0.0                     Other Investments - 0.0                    Common Stocks - 0.0                      Short-Term Investments and Net Other Assets (Liabilities) - (2.0)%   United States 87.7 Grand Cayman (UK Overseas Ter) 4.0 United Kingdom 1.3 Mexico 1.1 Bailiwick Of Jersey 0.8 Germany 0.6 Ireland 0.6 Canada 0.5 Switzerland 0.4 Others 3.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 87.7                       Grand Cayman (UK Overseas Ter) - 4.0       United Kingdom - 1.3                       Mexico - 1.1                               Bailiwick Of Jersey - 0.8                  Germany - 0.6                              Ireland - 0.6                              Canada - 0.5                               Switzerland - 0.4                          Others - 3.0                                   0.543 0.055 0.005 0.088 0.151 0.041 0.048 0.007 0.000 0.082 0.000 0.379 0.256 0.164 0.086 0.068 0.052 0.013 0.002 0.000 0.000 0.000 0.000 0.877 0.040 0.013 0.011 0.008 0.006 0.006 0.005 0.004 0.030 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 25.6   US Treasury Bonds 12.3   Fannie Mae Mortgage pass-thru certificates 5.0   Freddie Mac Gold Pool 4.1   Ginnie Mae II Pool 3.4   Uniform Mortgage Backed Securities 3.0   JPMorgan Chase & Co 1.6   Freddie Mac Multifamily Structured pass-thru certificates 1.4   Morgan Stanley 1.2   Bank of America Corp 1.1     58.7   0.256 0.123 0.050 0.041 0.034 0.030 0.016 0.014 0.012 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since September 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since September 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-08-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Tactical Bond ETF Fidelity® Tactical Bond ETF FTBD NYSEArca This annual shareholder report contains information about Fidelity® Tactical Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Tactical Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>55<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.55<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 55 0.0055 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the fund's top contributors relative to its benchmark, the Bloomberg U.S. Aggregate Bond Index, for the fiscal year came from out-of-benchmark allocations to outperforming high-yield bonds, global bonds and emerging-markets debt.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Converserly, the fund's yield-curve positioning and its longer-than-benchmark duration in a rising-rate environment detracted from performance versus the benchmark. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An underweight in agency mortgage-backed securities also modestly hurt. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Notable changes in positioning include increased exposure to U.S. Treasurys. </span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE January 24, 2023 through August 31, 2026. Initial investment of $10,000. Fidelity® Tactical Bond ETF $10,000 $9,918 $10,757 $11,215 Bloomberg U.S. Aggregate Bond Index $10,000 $9,831 $10,548 $10,879   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Tactical Bond ETF</span> 10000 9918 10757 11215 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 9831 10548 10879 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund Fidelity® Tactical Bond ETF - NAV  A  2.73% 4.01% Bloomberg U.S. Aggregate Bond Index  A 1.89% 2.90% A   From January 24, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0273 0.0401 0.0189 0.0290 2023-01-24 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,655,424</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">754</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>192,177</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">48<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 38655424 754 192177 0.48   U.S. Government and U.S. Government Agency Obligations 50.1 AAA 1.0 AA 0.2 A 1.9 BBB 11.7 BB 13.6 B 7.6 CCC,CC,C 2.6 Not Rated 3.7 Equities 2.0 Short-Term Investments and Net Other Assets (Liabilities) 5.6 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 50.1   AAA - 1.0                                  AA - 0.2                                   A - 1.9                                    BBB - 11.7                                 BB - 13.6                                  B - 7.6                                    CCC,CC,C - 2.6                             Not Rated - 3.7                            Equities - 2.0                             Short-Term Investments and Net Other Assets (Liabilities) - 5.6   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         U.S. Treasury Obligations 50.1 Corporate Bonds 30.2 Foreign Government and Government Agency Obligations 3.9 Bank Loan Obligations 2.5 Preferred Securities 2.4 Asset-Backed Securities 2.1 Fixed-Income Funds 1.9 CMOs and Other Mortgage Related Securities 1.1 Preferred Stocks 0.1 Municipal Securities 0.1 Common Stocks 0.0 Short-Term Investments and Net Other Assets (Liabilities) 5.6 ASSET ALLOCATION (% of Fund's net assets)     U.S. Treasury Obligations - 50.1           Corporate Bonds - 30.2                     Foreign Government and Government Agency Obligations - 3.9   Bank Loan Obligations - 2.5                Preferred Securities - 2.4                 Asset-Backed Securities - 2.1              Fixed-Income Funds - 1.9                   CMOs and Other Mortgage Related Securities - 1.1   Preferred Stocks - 0.1                     Municipal Securities - 0.1                 Common Stocks - 0.0                        Short-Term Investments and Net Other Assets (Liabilities) - 5.6   United States 83.4 United Kingdom 2.5 Canada 2.4 Germany 1.9 Brazil 1.6 Mexico 1.4 Luxembourg 1.1 Switzerland 0.8 Guatemala 0.8 Others 4.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 83.4                       United Kingdom - 2.5                       Canada - 2.4                               Germany - 1.9                              Brazil - 1.6                               Mexico - 1.4                               Luxembourg - 1.1                           Switzerland - 0.8                          Guatemala - 0.8                            Others - 4.1                                   0.501 0.010 0.002 0.019 0.117 0.136 0.076 0.026 0.037 0.020 0.056 0.501 0.302 0.039 0.025 0.024 0.021 0.019 0.011 0.001 0.001 0.000 0.056 0.834 0.025 0.024 0.019 0.016 0.014 0.011 0.008 0.008 0.041 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 33.1   US Treasury Bonds 17.0   Fidelity Real Estate High Income Fund 1.9   Petroleos Mexicanos 1.4   Brazilian Federative Republic 1.0   Charter Communications Operating LLC / Charter Communications Operating Capital 1.0   DPL LLC/Ohio 1.0   Bank of Nova Scotia/The 0.9   Millicom International Cellular SA 0.8   Enbridge Inc 0.7     58.8   0.331 0.170 0.019 0.014 0.010 0.010 0.010 0.009 0.008 0.007 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since September 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund added a contractual management fee waiver during the reporting period. </span></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since September 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund added a contractual management fee waiver during the reporting period. </span></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-08-31 Fidelity® Low Duration Bond Factor ETF Fidelity® Low Duration Bond Factor ETF FLDR CboeBZX This annual shareholder report contains information about Fidelity® Low Duration Bond Factor ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Low Duration Bond Factor ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>15<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.15<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15 0.0015 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>We construct the portfolio using optimization. This approach minimizes the differences between risk exposures of the fund relative to the index. We attempt to hold all positions held by the index in the same relative proportions.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Exposures include duration, key-rate durations, sector, and other factors.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 12, 2018 through August 31, 2026. Initial investment of $10,000. Fidelity® Low Duration Bond Factor ETF $10,000 $10,075 $10,473 $10,733 $10,772 $10,607 $11,123 $11,861 $12,480 Bloomberg US Treasury Bill: 6-9 Months Index $10,000 $10,045 $10,314 $10,503 $10,514 $10,474 $10,800 $11,380 $11,868 Fid Low Duration Investment Grade Factor Index $10,000 $10,076 $10,497 $10,795 $10,854 $10,713 $11,252 $12,018 $12,653 Bloomberg U.S. Aggregate Bond Index $10,000 $10,120 $11,150 $11,871 $11,861 $10,496 $10,370 $11,127 $11,476   2018 2019 2020 2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Low Duration Bond Factor ETF</span> 10000 10075 10473 10733 10772 10607 11123 11861 12480 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg US Treasury Bill: 6-9 Months Index</span> 10000 10045 10314 10503 10514 10474 10800 11380 11868 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fid Low Duration Investment Grade Factor Index</span> 10000 10076 10497 10795 10854 10713 11252 12018 12653 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10120 11150 11871 11861 10496 10370 11127 11476 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund Fidelity® Low Duration Bond Factor ETF - NAV  A  3.91% 3.78% 3.21% Bloomberg US Treasury Bill: 6-9 Months Index  A 3.53% 3.17% 2.54% Fid Low Duration Investment Grade Factor Index  A 4.12% 3.95% 3.41% Bloomberg U.S. Aggregate Bond Index  A 1.89% -0.29% 1.92% A   From June 12, 2018   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0391 0.0378 0.0321 0.0353 0.0317 0.0254 0.0412 0.0395 0.0341 0.0189 -0.0029 0.0192 2018-06-12 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,215,887,138</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">375</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,129,401</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">34<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2215887138 375 2129401 0.34   U.S. Government and U.S. Government Agency Obligations 12.2 AA 27.8 A 51.8 BBB 6.9 BB 0.3 Short-Term Investments and Net Other Assets (Liabilities) 1.0 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 12.2   AA - 27.8                                  A - 51.8                                   BBB - 6.9                                  BB - 0.3                                   Short-Term Investments and Net Other Assets (Liabilities) - 1.0   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         Corporate Bonds 86.8 U.S. Treasury Obligations 12.2 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets)     Corporate Bonds - 86.8                     U.S. Treasury Obligations - 12.2           Short-Term Investments and Net Other Assets (Liabilities) - 1.0   United States 56.3 Australia 10.5 Canada 7.4 United Kingdom 5.9 Japan 5.8 Netherlands 3.0 Germany 3.0 France 2.2 Spain 1.4 Others 4.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 56.3                       Australia - 10.5                           Canada - 7.4                               United Kingdom - 5.9                       Japan - 5.8                                Netherlands - 3.0                          Germany - 3.0                              France - 2.2                               Spain - 1.4                                Others - 4.5                                   0.122 0.278 0.518 0.069 0.003 0.010 0.868 0.122 0.010 0.563 0.105 0.074 0.059 0.058 0.030 0.030 0.022 0.014 0.045 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 12.0   JPMorgan Chase & Co 2.7   National Australia Bank Ltd 2.6   Goldman Sachs Group Inc/The 2.5   Royal Bank of Canada 2.3   Australia & New Zealand Banking Group Ltd 2.1   Sumitomo Mitsui Trust Bank Ltd 2.1   Toyota Motor Credit Corp 2.0   Cooperatieve Rabobank UA/NY 1.9   Commonwealth Bank of Australia 1.8     32.0   0.120 0.027 0.026 0.025 0.023 0.021 0.021 0.020 0.019 0.018 2026-08-31 Fidelity® Limited Term Bond ETF Fidelity® Limited Term Bond ETF FLTB NYSEArca This annual shareholder report contains information about Fidelity® Limited Term Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Limited Term Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>25<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.25<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 25 0.0025 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the ETF's strategy of favoring limited-term corporate bonds, while underweighting similar-duration U.S. Treasurys, contributed to its performance versus the Composite index for the fiscal year. Within corporates, debt holdings among financial institutions, especially banks, and industrial firms, particularly in the consumer cyclical segment, added value. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Non-Composite exposure to asset-backed securities, including collateralized loan obligations and car loan debt, also helped, as did an out-of-index allocation to commercial mortgage-backed securities.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, the fund's yield-curve positioning detracted from relative performance.  </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>At period end, corporates made up about 74% of fund assets, slightly higher than the Composite index and notably overweight versus the Bloomberg 1-5 year benchmark. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Exposure to U.S. Treasurys stood at roughly 11% as of August 31, compared with an average of 69% for the benchmark and 20% for the Composite index, while out-of-index exposure to ABS closed the fiscal year at about 9% of fund assets.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE August 31, 2016 through August 31, 2026. Initial investment of $10,000. Fidelity® Limited Term Bond ETF $10,000 $10,126 $10,103 $10,731 $11,272 $11,366 $10,641 $10,855 $11,711 $12,373 $12,725 Bloomberg U.S. 1-5 Year Government/Credit Bond Index $10,000 $10,093 $10,049 $10,648 $11,151 $11,188 $10,534 $10,659 $11,370 $11,914 $12,170 Fidelity Limited Term Composite Index℠ $10,000 $10,153 $10,139 $10,788 $11,331 $11,437 $10,748 $10,943 $11,766 $12,411 $12,758 Bloomberg U.S. Aggregate Bond Index $10,000 $10,049 $9,944 $10,955 $11,665 $11,655 $10,313 $10,189 $10,933 $11,276 $11,489   2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Limited Term Bond ETF</span> 10000 10126 10103 10731 11272 11366 10641 10855 11711 12373 12725 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. 1-5 Year Government/Credit Bond Index</span> 10000 10093 10049 10648 11151 11188 10534 10659 11370 11914 12170 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Limited Term Composite Index℠</span> 10000 10153 10139 10788 11331 11437 10748 10943 11766 12411 12758 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10049 9944 10955 11665 11655 10313 10189 10933 11276 11489 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Limited Term Bond ETF - NAV  2.85% 2.29% 2.44% Bloomberg U.S. 1-5 Year Government/Credit Bond Index 2.15% 1.70% 1.98% Fidelity Limited Term Composite Index℠ 2.79% 2.21% 2.47% Bloomberg U.S. Aggregate Bond Index 1.89% -0.29% 1.40%     Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0285 0.0229 0.0244 0.0215 0.0170 0.0198 0.0279 0.0221 0.0247 0.0189 -0.0029 0.0140 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>452,879,838</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">1,071</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>895,920</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">77<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 452879838 1071 895920 0.77   U.S. Government and U.S. Government Agency Obligations 12.3 AAA 6.5 AA 1.5 A 26.8 BBB 37.9 BB 5.1 B 3.1 CCC,CC,C 0.7 Not Rated 5.1 Equities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 12.3   AAA - 6.5                                  AA - 1.5                                   A - 26.8                                   BBB - 37.9                                 BB - 5.1                                   B - 3.1                                    CCC,CC,C - 0.7                             Not Rated - 5.1                            Equities - 0.0                             Short-Term Investments and Net Other Assets (Liabilities) - 1.0   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         Corporate Bonds 71.5 U.S. Treasury Obligations 12.3 Asset-Backed Securities 8.9 CMOs and Other Mortgage Related Securities 3.4 Bank Loan Obligations 1.3 Foreign Government and Government Agency Obligations 0.8 Preferred Securities 0.7 Other Investments 0.1 Preferred Stocks 0.0 U.S. Government Agency - Mortgage Securities 0.0 Common Stocks 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets)     Corporate Bonds - 71.5                     U.S. Treasury Obligations - 12.3           Asset-Backed Securities - 8.9              CMOs and Other Mortgage Related Securities - 3.4   Bank Loan Obligations - 1.3                Foreign Government and Government Agency Obligations - 0.8   Preferred Securities - 0.7                 Other Investments - 0.1                    Preferred Stocks - 0.0                     U.S. Government Agency - Mortgage Securities - 0.0   Common Stocks - 0.0                        Short-Term Investments and Net Other Assets (Liabilities) - 1.0   United States 72.1 United Kingdom 5.5 Grand Cayman (UK Overseas Ter) 4.5 Canada 3.7 Germany 2.7 France 1.9 Ireland 1.8 Japan 1.6 Bailiwick Of Jersey 1.3 Others 4.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 72.1                       United Kingdom - 5.5                       Grand Cayman (UK Overseas Ter) - 4.5       Canada - 3.7                               Germany - 2.7                              France - 1.9                               Ireland - 1.8                              Japan - 1.6                                Bailiwick Of Jersey - 1.3                  Others - 4.9                                   0.123 0.065 0.015 0.268 0.379 0.051 0.031 0.007 0.051 0.000 0.010 0.715 0.123 0.089 0.034 0.013 0.008 0.007 0.001 0.000 0.000 0.000 0.010 0.721 0.055 0.045 0.037 0.027 0.019 0.018 0.016 0.013 0.049 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 12.3   Bank of America Corp 1.6   JPMorgan Chase & Co 1.6   HSBC Holdings PLC 1.4   Wells Fargo & Co 1.4   Morgan Stanley 1.3   Goldman Sachs Group Inc/The 1.2   Deutsche Bank AG/New York NY 1.1   General Motors Financial Co Inc 1.1   Ford Motor Credit Co LLC 1.0     24.0   0.123 0.016 0.016 0.014 0.014 0.013 0.012 0.011 0.011 0.010 2026-08-31 Fidelity® Investment Grade Securitized ETF Fidelity® Investment Grade Securitized ETF FSEC NYSEArca This annual shareholder report contains information about Fidelity® Investment Grade Securitized ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Investment Grade Securitized ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>37<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 37 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, fast-growing government debt and heavy U.S. Treasury issuance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the exchange-traded fund's overweight in select agency mortgage-backed securities that benefited from spread tightening contributed to performance versus the benchmark, the Bloomberg U.S. Securitized Index, for the fiscal year, including specified conventional mortgage pools with coupons of 2.5%, 6.0% and 6.5%, and Ginnie Mae securities with a coupon greater than 5.0%.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Non-benchmark holdings in residential mortgage-backed securities and asset-backed securities boosted relative performance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Timely purchases and sales of interest-rate swaps were beneficial, as was a pay-fixed position in two-year interest-rate swaps.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, an overweight in Ginnie Mae securities with a 2% coupon detracted from performance versus the benchmark the past 12 months, as did the fund's longer duration (interest rate) positioning.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE March 2, 2021 through August 31, 2026. Initial investment of $10,000. Fidelity® Investment Grade Securitized ETF $10,000 $10,036 $8,983 $8,795 $9,525 $9,874 Bloomberg U.S. Securitized Index $10,000 $10,018 $9,044 $8,867 $9,537 $9,872 Bloomberg U.S. Aggregate Bond Index $10,000 $10,156 $8,986 $8,879 $9,527 $9,826   2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Investment Grade Securitized ETF</span> 10000 10036 8983 8795 9525 9874 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Securitized Index</span> 10000 10018 9044 8867 9537 9872 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10156 8986 8879 9527 9826 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund Fidelity® Investment Grade Securitized ETF - NAV  A  3.27% 0.32% 0.35% Bloomberg U.S. Securitized Index  A 2.98% 0.30% 0.30% Bloomberg U.S. Aggregate Bond Index  A 1.89% -0.29% 0.02% A   From March 2, 2021   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0327 0.0032 0.0035 0.0298 0.0030 0.0030 0.0189 -0.0029 0.0002 2021-03-02 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,639,606,969</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">1,193</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,817,676</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">620<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4639606969 1193 15817676 6.20   U.S. Government and U.S. Government Agency Obligations 86.6 AAA 10.9 AA 0.8 A 0.1 CCC,CC,C 0.0 Not Rated 22.7 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 86.6   AAA - 10.9                                 AA - 0.8                                   A - 0.1                                    CCC,CC,C - 0.0                             Not Rated - 22.7                         Short-Term Investments and Net Other Assets (Liabilities) - (21.1)%   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         U.S. Government Agency - Mortgage Securities 82.9 CMOs and Other Mortgage Related Securities 26.7 Asset-Backed Securities 7.6 U.S. Treasury Obligations 3.7 Options 0.2 ASSET ALLOCATION (% of Fund's net assets)     U.S. Government Agency - Mortgage Securities - 82.9   CMOs and Other Mortgage Related Securities - 26.7   Asset-Backed Securities - 7.6              U.S. Treasury Obligations - 3.7            Options - 0.2                            Short-Term Investments and Net Other Assets (Liabilities) - (21.1)%   United States 100.0 Canada 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 100.0                      Canada - 0.0                                   0.866 0.109 0.008 0.001 0.000 0.227 0.829 0.267 0.076 0.037 0.002 1.000 0.000 TOP HOLDINGS(% of Fund's net assets)     Fannie Mae Mortgage pass-thru certificates 28.9   Freddie Mac Gold Pool 22.8   Ginnie Mae II Pool 20.7   Freddie Mac Multifamily Structured pass-thru certificates 10.7   Uniform Mortgage Backed Securities 7.3   Fannie Mae Guaranteed REMIC 3.7   US Treasury Notes 2.3   Fannie Mae 1.8   Freddie Mac Non Gold Pool 1.4   US Treasury Bonds 1.4     101.0   0.289 0.228 0.207 0.107 0.073 0.037 0.023 0.018 0.014 0.014 2026-08-31 Fidelity® Investment Grade Bond ETF Fidelity® Investment Grade Bond ETF FIGB NYSEArca This annual shareholder report contains information about Fidelity® Investment Grade Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Investment Grade Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 36 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the ETF's top contributors relative to its benchmark, the Bloomberg U.S. Aggregate Bond Index, for the fiscal year came from overweight allocations to securitized products - specifically, outperforming stakes in asset-backed securities, including AAA-rated collateralized loan obligations, and commercial mortgage-backed securities.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Converserly, the ETF's yield-curve positioning and its modestly longer-than-benchmark duration in a rising-rate environment was a modest detractor.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An underweight in agency mortgage-backed securities also modestly hindered performance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In terms of security selection, picks in corporate debt, sovereign government bonds and commercial mortgage-backed securities helped.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>The ETF's managers did not make significant adjustments in positioning over the period and sought to keep the fund conservatively positioned versus the benchmark. </span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE March 2, 2021 through August 31, 2026. Initial investment of $10,000. Fidelity® Investment Grade Bond ETF $10,000 $10,216 $9,026 $8,951 $9,646 $9,954 Bloomberg U.S. Aggregate Bond Index $10,000 $10,156 $8,986 $8,879 $9,527 $9,826   2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Investment Grade Bond ETF</span> 10000 10216 9026 8951 9646 9954 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10156 8986 8879 9527 9826 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund Fidelity® Investment Grade Bond ETF - NAV  A  1.59% -0.20% 0.20% Bloomberg U.S. Aggregate Bond Index  A 1.89% -0.29% 0.02% A   From March 2, 2021   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0159 -0.0020 0.0020 0.0189 -0.0029 0.0002 2021-03-02 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>645,741,262</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">1,005</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,476,859</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">211<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 645741262 1005 1476859 2.11   U.S. Government and U.S. Government Agency Obligations 62.8 AAA 5.0 AA 0.6 A 7.3 BBB 14.4 BB 1.9 B 0.7 Not Rated 5.3 Short-Term Investments and Net Other Assets (Liabilities) 2.0 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 62.8   AAA - 5.0                                  AA - 0.6                                   A - 7.3                                    BBB - 14.4                                 BB - 1.9                                   B - 0.7                                    Not Rated - 5.3                            Short-Term Investments and Net Other Assets (Liabilities) - 2.0   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         U.S. Treasury Obligations 46.8 Corporate Bonds 23.0 U.S. Government Agency - Mortgage Securities 16.0 Asset-Backed Securities 7.5 CMOs and Other Mortgage Related Securities 4.7 Other Investments 0.0 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets)     U.S. Treasury Obligations - 46.8           Corporate Bonds - 23.0                     U.S. Government Agency - Mortgage Securities - 16.0   Asset-Backed Securities - 7.5              CMOs and Other Mortgage Related Securities - 4.7   Other Investments - 0.0                    Short-Term Investments and Net Other Assets (Liabilities) - 2.0   United States 92.1 Grand Cayman (UK Overseas Ter) 3.6 Mexico 0.7 United Kingdom 0.7 Bailiwick Of Jersey 0.7 Ireland 0.6 Germany 0.4 Switzerland 0.3 Japan 0.3 Others 0.6 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 92.1                       Grand Cayman (UK Overseas Ter) - 3.6       Mexico - 0.7                               United Kingdom - 0.7                       Bailiwick Of Jersey - 0.7                  Ireland - 0.6                              Germany - 0.4                              Switzerland - 0.3                          Japan - 0.3                                Others - 0.6                                   0.628 0.050 0.006 0.073 0.144 0.019 0.007 0.053 0.020 0.468 0.230 0.160 0.075 0.047 0.000 0.020 0.921 0.036 0.007 0.007 0.007 0.006 0.004 0.003 0.003 0.006 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 34.9   US Treasury Bonds 11.9   Fannie Mae Mortgage pass-thru certificates 4.9   Freddie Mac Gold Pool 3.9   Ginnie Mae II Pool 3.6   Uniform Mortgage Backed Securities 3.2   Charter Communications Operating LLC / Charter Communications Operating Capital 1.0   Morgan Stanley 1.0   JPMorgan Chase & Co 0.9   Bank of America Corp 0.9     66.2   0.349 0.119 0.049 0.039 0.036 0.032 0.010 0.010 0.009 0.009 2026-08-31 Fidelity® Corporate Bond ETF Fidelity® Corporate Bond ETF FCOR NYSEArca This annual shareholder report contains information about Fidelity® Corporate Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Corporate Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 36 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, security selection contributed to the fund's performance versus the benchmark Bloomberg U.S. Credit Bond Index for the fiscal year, whereas sector positioning slightly detracted.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Bond picks among companies in the financials and industrials sectors contributed this year. Within financials, broadly diversified exposure to banks and insurance companies, along with holdings of real estate investment trusts, helped the most. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Within industrials, companies in consumer-related industries added the most value. In consumer non-cyclicals, pharmaceutical company Bayer was a notable standout. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Outside of corporate credit, an allocation to U.S. Treasurys and cash - held for liquidity and risk-management purposes - meaningfully dampened the fund's relative result. Underweighting sovereign bonds was another modest detractor. These negatives were somewhat offset by steering clear of other government-related categories, as these bonds lagged credit amid extensive government borrowing, persistent inflation and rising yields. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>During the period, the fund's managers continued to emphasize issuers rated BBB, as they believe there is opportunity for alpha potential over time resulting from improving credit quality. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Noteworthy positioning changes included increasing the allocation to technology issuers, mainly by adding AI-linked companies, such as Nvidia, Alphabet, Meta Platforms and Oracle. Additionally, the fund increased its exposure to finance companies, primarily aircraft lessors.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>As of August 31, the fund maintained overweight allocations in financial institutions and utilities, and underweight exposure to industrials.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>As the fund's managers continued to put capital to work in the corporate market, the portfolio's combined allocation to Treasurys and cash was significantly reduced during the period, from roughly 9% at the beginning to about 5% at the end.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE August 31, 2016 through August 31, 2026. Initial investment of $10,000. Fidelity® Corporate Bond ETF $10,000 $10,243 $10,099 $11,451 $12,374 $12,759 $10,806 $10,935 $12,029 $12,546 $12,764 Bloomberg U.S. Credit Bond Index $10,000 $10,190 $10,090 $11,400 $12,209 $12,486 $10,684 $10,774 $11,742 $12,203 $12,444 Bloomberg U.S. Aggregate Bond Index $10,000 $10,049 $9,944 $10,955 $11,665 $11,655 $10,313 $10,189 $10,933 $11,276 $11,489   2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Corporate Bond ETF</span> 10000 10243 10099 11451 12374 12759 10806 10935 12029 12546 12764 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Credit Bond Index</span> 10000 10190 10090 11400 12209 12486 10684 10774 11742 12203 12444 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10049 9944 10955 11665 11655 10313 10189 10933 11276 11489 AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Corporate Bond ETF - NAV  1.74% 0.01% 2.47% Bloomberg U.S. Credit Bond Index 1.98% -0.07% 2.21% Bloomberg U.S. Aggregate Bond Index 1.89% -0.29% 1.40%     Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0174 0.0001 0.0247 0.0198 -0.0007 0.0221 0.0189 -0.0029 0.0140 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>352,645,081</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">574</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,161,860</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">38<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 352645081 574 1161860 0.38   U.S. Government and U.S. Government Agency Obligations 3.2 AAA 0.2 AA 3.1 A 27.5 BBB 58.1 BB 4.3 B 0.3 Not Rated 0.6 Short-Term Investments and Net Other Assets (Liabilities) 2.7 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 3.2   AAA - 0.2                                  AA - 3.1                                   A - 27.5                                   BBB - 58.1                                 BB - 4.3                                   B - 0.3                                    Not Rated - 0.6                            Short-Term Investments and Net Other Assets (Liabilities) - 2.7   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         Corporate Bonds 91.0 U.S. Treasury Obligations 3.2 Asset-Backed Securities 1.5 CMOs and Other Mortgage Related Securities 0.7 Foreign Government and Government Agency Obligations 0.5 Preferred Securities 0.3 Other Investments 0.1 Short-Term Investments and Net Other Assets (Liabilities) 2.7 ASSET ALLOCATION (% of Fund's net assets)     Corporate Bonds - 91.0                     U.S. Treasury Obligations - 3.2            Asset-Backed Securities - 1.5              CMOs and Other Mortgage Related Securities - 0.7   Foreign Government and Government Agency Obligations - 0.5   Preferred Securities - 0.3                 Other Investments - 0.1                    Short-Term Investments and Net Other Assets (Liabilities) - 2.7   United States 82.8 United Kingdom 3.3 Ireland 3.1 Canada 3.0 Germany 1.3 Japan 1.3 Australia 1.1 Netherlands 0.7 France 0.7 Others 2.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 82.8                       United Kingdom - 3.3                       Ireland - 3.1                              Canada - 3.0                               Germany - 1.3                              Japan - 1.3                                Australia - 1.1                            Netherlands - 0.7                          France - 0.7                               Others - 2.7                                   0.032 0.002 0.031 0.275 0.581 0.043 0.003 0.006 0.027 0.910 0.032 0.015 0.007 0.005 0.003 0.001 0.027 0.828 0.033 0.031 0.030 0.013 0.013 0.011 0.007 0.007 0.027 TOP HOLDINGS(% of Fund's net assets)     US Treasury Bonds 2.8   JPMorgan Chase & Co 2.5   Morgan Stanley 2.2   Broadcom Inc 2.1   Bank of America Corp 2.1   Oracle Corp 1.8   Boeing Co 1.8   Wells Fargo & Co 1.6   AerCap Ireland Capital DAC / AerCap Global Aviation Trust 1.5   Charter Communications Operating LLC / Charter Communications Operating Capital 1.4     19.8   0.028 0.025 0.022 0.021 0.021 0.018 0.018 0.016 0.015 0.014 2026-08-31 Fidelity® Low Duration Bond ETF Fidelity® Low Duration Bond ETF FLDB NASDAQ This annual shareholder report contains information about Fidelity® Low Duration Bond ETF for the period September 1, 2025 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Low Duration Bond ETF</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 20 0.0020 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the ETF's strategy of holding short-term debt in high-quality corporations contributed to performance versus the all-U.S.-Treasury benchmark for the fiscal year. Within corporates, debt holdings among financial institutions, especially banks, and industrial firms, particularly in the consumer cyclical and consumer non-cyclical segments, added notable value.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Non-benchmark exposure to asset-backed securities, including car loan debt and collateralized loan obligations, also meaningfully helped. A small, out-of-benchmark allocation to commercial mortgage-backed securities was beneficial as well.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, the fund's yield-curve positioning detracted from relative performance.  </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>At period end, corporates made up about 49% of fund assets, up from roughly 46% a year ago. Exposure to U.S. Treasurys ticked up from approximately 26% to about 27% of assets, while the allocation to ABS declined from about 23% to 18% of assets as of August 31.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 22, 2024 through August 31, 2026. Initial investment of $10,000. Fidelity® Low Duration Bond ETF $10,006 $10,301 $10,818 Bloomberg US Treasury Bill: 6-9 Months Index $10,008 $10,283 $10,724 Bloomberg U.S. Aggregate Bond Index $10,047 $10,533 $10,863   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Low Duration Bond ETF</span> 10006 10301 10818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg US Treasury Bill: 6-9 Months Index</span> 10008 10283 10724 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10047 10533 10863 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund Fidelity® Low Duration Bond ETF - NAV  A  3.89% 4.74% Bloomberg US Treasury Bill: 6-9 Months Index  A 3.53% 4.24% Bloomberg U.S. Aggregate Bond Index  A 1.89% 4.10% A   From February 22, 2024   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0389 0.0474 0.0353 0.0424 0.0189 0.0410 2024-02-22 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>417,812,177</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">384</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>800,324</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">60<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 417812177 384 800324 0.60   U.S. Government and U.S. Government Agency Obligations 27.3 AAA 17.2 AA 5.2 A 31.5 BBB 11.3 BB 0.3 Not Rated 3.3 Short-Term Investments and Net Other Assets (Liabilities) 3.9 QUALITY DIVERSIFICATION (% of Fund's net assets)     U.S. Government and U.S. Government Agency Obligations - 27.3   AAA - 17.2                                 AA - 5.2                                   A - 31.5                                   BBB - 11.3                                 BB - 0.3                                   Not Rated - 3.3                            Short-Term Investments and Net Other Assets (Liabilities) - 3.9   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         Corporate Bonds 48.1 U.S. Treasury Obligations 27.3 Asset-Backed Securities 18.2 CMOs and Other Mortgage Related Securities 2.4 Other Investments 0.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets)     Corporate Bonds - 48.1                     U.S. Treasury Obligations - 27.3           Asset-Backed Securities - 18.2             CMOs and Other Mortgage Related Securities - 2.4   Other Investments - 0.1                    Short-Term Investments and Net Other Assets (Liabilities) - 3.9   United States 74.5 Canada 5.7 United Kingdom 5.1 Grand Cayman (UK Overseas Ter) 3.8 Netherlands 2.3 Germany 1.9 Japan 1.2 Switzerland 1.0 Denmark 0.8 Others 3.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 74.5                       Canada - 5.7                               United Kingdom - 5.1                       Grand Cayman (UK Overseas Ter) - 3.8       Netherlands - 2.3                          Germany - 1.9                              Japan - 1.2                                Switzerland - 1.0                          Denmark - 0.8                              Others - 3.7                                   0.273 0.172 0.052 0.315 0.113 0.003 0.033 0.039 0.481 0.273 0.182 0.024 0.001 0.039 0.745 0.057 0.051 0.038 0.023 0.019 0.012 0.010 0.008 0.037 TOP HOLDINGS(% of Fund's net assets)     US Treasury Notes 27.3   Wells Fargo & Co 1.7   JPMorgan Chase & Co 1.7   Bank of America Corp 1.6   Goldman Sachs Group Inc/The 1.4   Royal Bank of Canada 1.2   Bank of Montreal 1.1   Danske Bank A/S 0.8   ING Groep NV 0.8   NatWest Group PLC 0.8     38.4   0.273 0.017 0.017 0.016 0.014 0.012 0.011 0.008 0.008 0.008 2026-08-31 Fidelity® AAA CLO ETF Fidelity® AAA CLO ETF FAAA NASDAQ This annual shareholder report contains information about Fidelity® AAA CLO ETF for the period February 10, 2026 to August 31, 2026. annual shareholder report 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. fundresearch.fidelity.com/prospectus/sec 1-800-FIDELITY fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® AAA CLO ETF</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span>0<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">B</span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.00<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">C</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</span><span style="font-family:'Fidelity Sans Cd';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Expenses for the full reporting period would be higher.</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">B</span><span style="font-family:'Fidelity Sans Cd';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Amount represents less than $.50</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">C</span><span style="font-family:'Fidelity Sans Cd';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Amount represents less than 0.005%</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 0 0.0000 Expenses for the full reporting period would be higher. <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>U.S. taxable investment-grade bonds achieved a gain for the 12 months ending August 31, 2026, buoyed by three policy interest-rate cuts by the Federal Reserve in late 2025, but pulled down since then by rising bond yields amid higher consumer inflation, a resilient economy and heavy U.S. Treasury issuance. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, the Co-Portfolio Managers' selection among collateralized loan obligations - a type of asset-backed security that is typically collateralized by a diverse pool of leveraged loans - contributed to the ETF's performance versus the J.P. Morgan CLOIE AAA Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>The majority of the fund's assets are invested in floating-rate CLOs rated AAA. The ETF also may invest a portion of assets in cash or other short-term instruments, such as money market instruments or money market funds.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2026 through August 31, 2026. Initial investment of $10,000. Fidelity® AAA CLO ETF $10,000 J.P. Morgan CLOIE AAA Index $10,000 Bloomberg U.S. Aggregate Bond Index $10,000   2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® AAA CLO ETF</span> 10000 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">J.P. Morgan CLOIE AAA Index</span> 10000 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph does not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph does not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of August 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>100,300,745</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">187</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>0</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">10<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 100300745 187 0 0.10   AAA 74.8 Not Rated 24.4 Short-Term Investments and Net Other Assets (Liabilities) 0.8 QUALITY DIVERSIFICATION (% of Fund's net assets)     AAA - 74.8                                 Not Rated - 24.4                           Short-Term Investments and Net Other Assets (Liabilities) - 0.8   We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.         Asset-Backed Securities 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets)     Asset-Backed Securities - 99.2             Short-Term Investments and Net Other Assets (Liabilities) - 0.8   Grand Cayman (UK Overseas Ter) 87.9 Bailiwick Of Jersey 5.9 United States 4.8 Bermuda 1.2 Multi-national 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     Grand Cayman (UK Overseas Ter) - 87.9      Bailiwick Of Jersey - 5.9                  United States - 4.8                        Bermuda - 1.2                              Multi-national - 0.2                           0.748 0.244 0.008 0.992 0.008 0.879 0.059 0.048 0.012 0.002 TOP HOLDINGS(% of Fund's net assets)     Agl Clo 17 Ltd 1.6   Canyon Capital CLO Ltd 1.6   Bain Capital Credit CLO Ltd 1.6   Diameter Cap Ltd / LLC 1.4   Regatta Xxii Funding Ltd 1.3   KKR CLO 50 Ltd 1.3   Voya CLOLtd / Voya CLO LLC 1.3   OCP CLO Ltd 1.3   Flatiron CLO Ltd 1.3   Benefit Str Partners CLO Vi-B Ltd / Benefit Str Partners CLO Vi-B LLC 1.3     14.0   0.016 0.016 0.016 0.014 0.013 0.013 0.013 0.013 0.013 0.013