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          <annualizedRt>0.02125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.25% 02/15/2050</title>
        <cusip>912810SM1</cusip>
        <identifiers>
          <isin value="US912810SM18"/>
        </identifiers>
        <balance>155528000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>112825609.90000000</valUSD>
        <pctVal>0.959925118649</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2050-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.5% 02/15/2053</title>
        <cusip>912810TP3</cusip>
        <identifiers>
          <isin value="US912810TP30"/>
        </identifiers>
        <balance>226200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>193512273.66000000</valUSD>
        <pctVal>1.646410707798</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01500000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1% 02/15/2049</title>
        <cusip>912810SG4</cusip>
        <identifiers>
          <isin value="US912810SG40"/>
        </identifiers>
        <balance>166036000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>153712583.43000000</valUSD>
        <pctVal>1.307793239653</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.625% 02/15/2043</title>
        <cusip>912810RA8</cusip>
        <identifiers>
          <isin value="US912810RA88"/>
        </identifiers>
        <balance>176696000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>183385978.96000000</valUSD>
        <pctVal>1.560255759023</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00625000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 2.125% 2/15/41</title>
        <cusip>912810QP6</cusip>
        <identifiers>
          <isin value="US912810QP66"/>
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        <balance>150158000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>215437304.67000000</valUSD>
        <pctVal>1.832949810155</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.875% 2/15/47</title>
        <cusip>912810RW0</cusip>
        <identifiers>
          <isin value="US912810RW09"/>
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        <balance>168670000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>162536798.86000000</valUSD>
        <pctVal>1.382870042261</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.125% 01/15/2031</title>
        <cusip>91282CBF7</cusip>
        <identifiers>
          <isin value="US91282CBF77"/>
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        <balance>655083900.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>748161567.99000000</valUSD>
        <pctVal>6.365390646312</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2031-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.125% 07/15/2031</title>
        <cusip>91282CCM1</cusip>
        <identifiers>
          <isin value="US91282CCM10"/>
        </identifiers>
        <balance>632226400.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>696558429.16000000</valUSD>
        <pctVal>5.926348932219</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2031-07-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.125% 01/15/2032</title>
        <cusip>91282CDX6</cusip>
        <identifiers>
          <isin value="US91282CDX65"/>
        </identifiers>
        <balance>759220000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>796600991.60000000</valUSD>
        <pctVal>6.777515335887</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2032-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 2.125% 01/15/2035</title>
        <cusip>91282CML2</cusip>
        <identifiers>
          <isin value="US91282CML27"/>
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        <balance>977500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1010348379.20000000</valUSD>
        <pctVal>8.596087259272</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2035-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1% 2/15/46</title>
        <cusip>912810RR1</cusip>
        <identifiers>
          <isin value="US912810RR14"/>
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        <balance>273709000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>281010319.23000000</valUSD>
        <pctVal>2.390847824954</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 2.125% 2/15/40</title>
        <cusip>912810QF8</cusip>
        <identifiers>
          <isin value="US912810QF84"/>
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        <balance>106039000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>155458227.50000000</valUSD>
        <pctVal>1.322645254125</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.75% 2/15/42</title>
        <cusip>912810QV3</cusip>
        <identifiers>
          <isin value="US912810QV35"/>
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        <balance>277405000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>306054855.23000000</valUSD>
        <pctVal>2.603927809301</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.875% 07/15/2034</title>
        <cusip>91282CLE9</cusip>
        <identifiers>
          <isin value="US91282CLE92"/>
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        <balance>895200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>916342064.62000000</valUSD>
        <pctVal>7.796277510785</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2034-07-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.125% 02/15/2052</title>
        <cusip>912810TE8</cusip>
        <identifiers>
          <isin value="US912810TE82"/>
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        <balance>374800000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>230831187.21000000</valUSD>
        <pctVal>1.963921621757</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Fidelity Revere Street Trust</name>
        <lei>549300BDV45LJNXBZC55</lei>
        <title>Fidelity Cash Central Fund</title>
        <cusip>31635A105</cusip>
        <identifiers>
          <isin value="US31635A1051"/>
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        <balance>2512100.52100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2512602.94000000</valUSD>
        <pctVal>0.021377333368</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.375% 07/15/2033</title>
        <cusip>91282CHP9</cusip>
        <identifiers>
          <isin value="US91282CHP95"/>
        </identifiers>
        <balance>842700000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>864738666.24000000</valUSD>
        <pctVal>7.357233588429</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-07-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01375000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.75% 02/15/2045</title>
        <cusip>912810RL4</cusip>
        <identifiers>
          <isin value="US912810RL44"/>
        </identifiers>
        <balance>255737000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>254552951.24000000</valUSD>
        <pctVal>2.165747405560</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1% 02/15/2048</title>
        <cusip>912810SB5</cusip>
        <identifiers>
          <isin value="US912810SB52"/>
        </identifiers>
        <balance>125236000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>119923339.97000000</valUSD>
        <pctVal>1.020312909911</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 2.375% 02/15/2055</title>
        <cusip>912810UH9</cusip>
        <identifiers>
          <isin value="US912810UH94"/>
        </identifiers>
        <balance>150999000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>148529073.72000000</valUSD>
        <pctVal>1.263691717155</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2055-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02375000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.125% 01/15/2033</title>
        <cusip>91282CGK1</cusip>
        <identifiers>
          <isin value="US91282CGK18"/>
        </identifiers>
        <balance>718900000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>740083593.38000000</valUSD>
        <pctVal>6.296662892543</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 0.125% 02/15/2051</title>
        <cusip>912810SV1</cusip>
        <identifiers>
          <isin value="US912810SV17"/>
        </identifiers>
        <balance>268057000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>180078199.13000000</valUSD>
        <pctVal>1.532113026637</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.00125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.75% 01/15/2034</title>
        <cusip>91282CJY8</cusip>
        <identifiers>
          <isin value="US91282CJY84"/>
        </identifiers>
        <balance>889600000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>920679117.20000000</valUSD>
        <pctVal>7.833177339788</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2034-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>USTN TII 1.375% 02/15/2044</title>
        <cusip>912810RF7</cusip>
        <identifiers>
          <isin value="US912810RF75"/>
        </identifiers>
        <balance>305516000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>353366327.45000000</valUSD>
        <pctVal>3.006455840166</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01375000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="As of March 2025, 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>2025-07-30</ncom:dateSigned>
      <ncom:nameOfApplicant>Laura M. Del Prato</ncom:nameOfApplicant>
      <ncom:signature>Laura M. Del Prato</ncom:signature>
      <ncom:signerName>Laura M. Del Prato</ncom:signerName>
      <ncom:title>President and Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
