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          <cik>0001742912</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


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        <classId>C000234814</classId>
      </seriesClassInfo>


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      <regFileNumber>811-23377</regFileNumber>
      <regCik>0001742912</regCik>
      <regLei>549300VTYHP8U2332C46</regLei>
      <regStreet1>234 West Florida Street</regStreet1>
      <regStreet2>Suite 203</regStreet2>
      <regCity>Milwaukee</regCity>
      <regStateConditional regCountry="US" regState="US-WI"/>
      <regZipOrPostalCode>53204</regZipOrPostalCode>
      <regPhone>8449867676</regPhone>
      <seriesName>Newday Ocean Health ETF</seriesName>
      <seriesId>S000075593</seriesId>
      <seriesLei>54930001DS2RDVNL1X98</seriesLei>
      <repPdEnd>2025-05-31</repPdEnd>
      <repPdDate>2024-11-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
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      <totLiabs>2062.4</totLiabs>
      <netAssets>3198587.95</netAssets>
      <assetsAttrMiscSec>0</assetsAttrMiscSec>
      <assetsInvested>0</assetsInvested>
      <amtPayOneYrBanksBorr>0</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0</amtPayOneYrOther>
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        <name>Agilent Technologies Inc</name>
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        <name>Aker ASA</name>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Austevoll Seafood ASA</name>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Badger Meter Inc</name>
        <lei>5493002JENE20OGTUG20</lei>
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        <name>Cargotec Oyj</name>
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      <invstOrSec>
        <name>Costco Wholesale Corp</name>
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        <fairValLevel>1</fairValLevel>
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        <fairValLevel>1</fairValLevel>
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        <name>CVS Health Corp</name>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>DSM-Firmenich AG</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Ecolab Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>First American Government Obli</name>
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        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>Jacobs Solutions Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Kalmar Oyj</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Kroger Co/The</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Kurita Water Industries Ltd</name>
        <lei>52990086GS2ON69UMX34</lei>
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        <invCountry>JP</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>McKesson Corp</name>
        <lei>549300WZWOM80UCFSF54</lei>
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        <fairValLevel>1</fairValLevel>
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        <name>Oceana Group Ltd</name>
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        <title>Oceana Group Ltd</title>
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        <invCountry>ZA</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>Organo Corp</name>
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        <title>Organo Corp</title>
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          <ticker value="6368"/>
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        <invCountry>JP</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>Reckitt Benckiser Group PLC</name>
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        <title>Reckitt Benckiser Group PLC</title>
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        <invCountry>GB</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Stantec Inc</name>
        <lei>549300MZ7NGUZDCP2T16</lei>
        <title>Stantec Inc</title>
        <cusip>85472N109</cusip>
        <identifiers>
          <isin value="CA85472N1096"/>
          <ticker value="STN"/>
        </identifiers>
        <balance>1886</balance>
        <units>NS</units>
        <currencyConditional curCd="CAD" exchangeRt="1.40015"/>
        <valUSD>163350.51</valUSD>
        <pctVal>5.106956962055709</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CA</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Tetra Tech Inc</name>
        <lei>549300UJ1LP7JGJC5P32</lei>
        <title>Tetra Tech Inc</title>
        <cusip>88162G103</cusip>
        <identifiers>
          <isin value="US88162G1031"/>
          <ticker value="TTEK"/>
        </identifiers>
        <balance>3276</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>135986.76</valUSD>
        <pctVal>4.25146227415757</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Veolia Environnement SA</name>
        <lei>N/A</lei>
        <title>Veolia Environnement SA</title>
        <cusip>92334N103</cusip>
        <identifiers>
          <isin value="US92334N1037"/>
          <ticker value="VEOEY"/>
        </identifiers>
        <balance>9761</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>142608.21</valUSD>
        <pctVal>4.458473933786938</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>FR</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Walmart Inc</name>
        <lei>Y87794H0US1R65VBXU25</lei>
        <title>Walmart Inc</title>
        <cusip>931142103</cusip>
        <identifiers>
          <isin value="US9311421039"/>
          <ticker value="WMT"/>
        </identifiers>
        <balance>1897</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>175472.5</valUSD>
        <pctVal>5.485936380145494</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Xylem Inc/NY</name>
        <lei>549300DF5MV96DRYLQ48</lei>
        <title>Xylem Inc/NY</title>
        <cusip>98419M100</cusip>
        <identifiers>
          <isin value="US98419M1009"/>
          <ticker value="XYL"/>
        </identifiers>
        <balance>878</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>111286.5</valUSD>
        <pctVal>3.4792383933041453</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Zurn Elkay Water Solutions Cor</name>
        <lei>549300AM3633XDFU1Q85</lei>
        <title>Zurn Elkay Water Solutions Corp</title>
        <cusip>98983L108</cusip>
        <identifiers>
          <isin value="US98983L1089"/>
          <ticker value="ZWS"/>
        </identifiers>
        <balance>3496</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>139210.72</valUSD>
        <pctVal>4.352255500743695</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2025-01-29</ncom:dateSigned>
      <ncom:nameOfApplicant>Tidal ETF Trust</ncom:nameOfApplicant>
      <ncom:signature>/s/ Aaron Perkovich</ncom:signature>
      <ncom:signerName>Aaron Perkovich</ncom:signerName>
      <ncom:title>Treasurer/Principal Financial</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
