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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Shurgard Self Storage SA</name>
        <lei>549300J0UEIKU81XO336</lei>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>Advance Residence Investment Corp</name>
        <lei>N/A</lei>
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      <invstOrSec>
        <name>Allied Properties Real Estate Investment Trust</name>
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        <name>Alexandria Real Estate Equities Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Sino Land Co Ltd</name>
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        <fairValLevel>2</fairValLevel>
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        <name>Ascendas India Trust</name>
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        <fairValLevel>1</fairValLevel>
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        <name>ESR Cayman Ltd</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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        <name>Brixmor Property Group Inc</name>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Shaftesbury PLC</name>
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        <assetCat>EC</assetCat>
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        <invCountry>GB</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Cellnex Telecom SA</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Host Hotels &amp; Resorts Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Douglas Emmett Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Grainger PLC</name>
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        <fairValLevel>2</fairValLevel>
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        <name>MAPLETREE LOGISTICS TRUST ,RHT</name>
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        <name>Helios Towers PLC</name>
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        <name>MFS Institutional Money Market Portfolio</name>
        <lei>5L2W638H85N8T1136O07</lei>
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        <name>AvalonBay Communities Inc</name>
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        <name>Urban Edge Properties</name>
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        <name>Granite Real Estate Investment Trust</name>
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        <name>UNITE Group PLC/The</name>
        <lei>213800BBUUWVDH9YI827</lei>
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        <fairValLevel>1</fairValLevel>
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        <name>VICI Properties Inc</name>
        <lei>254900RKH6RY9KCJQH63</lei>
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        <name>Simon Property Group Inc</name>
        <lei>529900GQL5X8H7AO3T64</lei>
        <title>Simon Property Group Inc</title>
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      </invstOrSec>
      <invstOrSec>
        <name>Japan Logistics Fund Inc</name>
        <lei>3538004KZWISCQO70151</lei>
        <title>Japan Logistics Fund Inc</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="JP3046230003"/>
        </identifiers>
        <balance>11484.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="JPY" exchangeRt="113.03500000"/>
        <valUSD>31901411.07000000</valUSD>
        <pctVal>1.126627736741</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>JP</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>National Retail Properties Inc</name>
        <lei>5493008JKH5SOTI0JS97</lei>
        <title>National Retail Properties Inc</title>
        <cusip>637417106</cusip>
        <identifiers>
          <isin value="US6374171063"/>
        </identifiers>
        <balance>999920.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>44096472.00000000</valUSD>
        <pctVal>1.557307554159</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>Multiplan Empreendimentos Imobiliarios SA</name>
        <lei>N/A</lei>
        <title>Multiplan Empreendimentos Imobiliarios SA</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="BRMULTACNOR5"/>
        </identifiers>
        <balance>1705959.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="BRL" exchangeRt="5.62185000"/>
        <valUSD>5947650.04000000</valUSD>
        <pctVal>0.210046743349</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>BR</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>National Storage REIT</name>
        <lei>N/A</lei>
        <title>National Storage REIT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="AU000000NSR2"/>
        </identifiers>
        <balance>24057667.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="AUD" exchangeRt="1.40282000"/>
        <valUSD>42960433.23000000</valUSD>
        <pctVal>1.517187297864</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>AU</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Katitas Co Ltd</name>
        <lei>N/A</lei>
        <title>Katitas Co Ltd</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="JP3932950003"/>
        </identifiers>
        <balance>1579700.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="JPY" exchangeRt="113.03500000"/>
        <valUSD>58168174.03000000</valUSD>
        <pctVal>2.054262681798</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>JP</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Medical Properties Trust Inc</name>
        <lei>254900U6E39J1MQCCY14</lei>
        <title>Medical Properties Trust Inc</title>
        <cusip>58463J304</cusip>
        <identifiers>
          <isin value="US58463J3041"/>
        </identifiers>
        <balance>2047921.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>43600238.09000000</valUSD>
        <pctVal>1.539782596229</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>Vonovia SE</name>
        <lei>5299005A2ZEP6AP7KM81</lei>
        <title>Vonovia SE</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="DE000A1ML7J1"/>
        </identifiers>
        <balance>1060070.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="EUR" exchangeRt="0.88175600"/>
        <valUSD>58909074.62000000</valUSD>
        <pctVal>2.080428269051</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>DE</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Mid-America Apartment Communities Inc</name>
        <lei>549300FQZKFR5YNSHZ21</lei>
        <title>Mid-America Apartment Communities Inc</title>
        <cusip>59522J103</cusip>
        <identifiers>
          <isin value="US59522J1034"/>
        </identifiers>
        <balance>360394.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>74331262.50000000</valUSD>
        <pctVal>2.625077049280</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>CoreSite Realty Corp</name>
        <lei>549300H0YYORITFM2B74</lei>
        <title>CoreSite Realty Corp</title>
        <cusip>21870Q105</cusip>
        <identifiers>
          <isin value="US21870Q1058"/>
        </identifiers>
        <balance>310533.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>53116669.65000000</valUSD>
        <pctVal>1.875864148445</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>STAG Industrial Inc</name>
        <lei>549300QWYX2W6FASVQ07</lei>
        <title>STAG Industrial Inc</title>
        <cusip>85254J102</cusip>
        <identifiers>
          <isin value="US85254J1025"/>
        </identifiers>
        <balance>1322639.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>57640607.62000000</valUSD>
        <pctVal>2.035631187750</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>Warehouses De Pauw CVA</name>
        <lei>549300HWDYC5JXC85138</lei>
        <title>Warehouses De Pauw CVA</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="BE0974349814"/>
        </identifiers>
        <balance>1479831.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="EUR" exchangeRt="0.88175600"/>
        <valUSD>68590864.00000000</valUSD>
        <pctVal>2.422349585098</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>BE</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Encompass Health Corp</name>
        <lei>549300FVRPM9DRQZRG64</lei>
        <title>Encompass Health Corp</title>
        <cusip>29261A100</cusip>
        <identifiers>
          <isin value="US29261A1007"/>
        </identifiers>
        <balance>438095.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>25243033.90000000</valUSD>
        <pctVal>0.891481009690</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>Weyerhaeuser Co</name>
        <lei>08IRJODWFYBI7QWRGS31</lei>
        <title>Weyerhaeuser Co</title>
        <cusip>962166104</cusip>
        <identifiers>
          <isin value="US9621661043"/>
        </identifiers>
        <balance>979740.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>36848021.40000000</valUSD>
        <pctVal>1.301321840033</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>Extra Space Storage Inc</name>
        <lei>N/A</lei>
        <title>Extra Space Storage Inc</title>
        <cusip>30225T102</cusip>
        <identifiers>
          <isin value="US30225T1025"/>
        </identifiers>
        <balance>467303.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>93460600.00000000</valUSD>
        <pctVal>3.300647235367</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>Equinix Inc</name>
        <lei>549300EVUN2BTLJ3GT74</lei>
        <title>Equinix Inc</title>
        <cusip>29444U700</cusip>
        <identifiers>
          <isin value="US29444U7000"/>
        </identifiers>
        <balance>147585.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>119868537.00000000</valUSD>
        <pctVal>4.233267871772</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>Equity LifeStyle Properties Inc</name>
        <lei>529900PEQG66LENB6798</lei>
        <title>Equity LifeStyle Properties Inc</title>
        <cusip>29472R108</cusip>
        <identifiers>
          <isin value="US29472R1086"/>
        </identifiers>
        <balance>849400.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>69056220.00000000</valUSD>
        <pctVal>2.438784061175</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>Embassy Office Parks REIT</name>
        <lei>335800O555A557E43Z08</lei>
        <title>Embassy Office Parks REIT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="INE041025011"/>
        </identifiers>
        <balance>5185693.00000000</balance>
        <units>NS</units>
        <currencyConditional curCd="INR" exchangeRt="75.15250000"/>
        <valUSD>24781420.35000000</valUSD>
        <pctVal>0.875178701685</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IN</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2021-12-23</ncom:dateSigned>
      <ncom:nameOfApplicant>MFS SERIES TRUST XIII</ncom:nameOfApplicant>
      <ncom:signature>Kasey Phillips</ncom:signature>
      <ncom:signerName>Kasey Phillips</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
