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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Notes</title>
        <cusip>91282CCU3</cusip>
        <identifiers>
          <isin value="US91282CCU36"/>
        </identifiers>
        <balance>4150000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>4082724.60000000</valUSD>
        <pctVal>2.650956503386</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-08-31</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.13000000</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</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Notes</title>
        <cusip>91282CAF8</cusip>
        <identifiers>
          <isin value="US91282CAF86"/>
        </identifiers>
        <balance>4150000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>4090667.95000000</valUSD>
        <pctVal>2.656114205020</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.13000000</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>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank Discount Notes</title>
        <cusip>313384JH3</cusip>
        <identifiers>
          <isin value="US313384JH39"/>
        </identifiers>
        <balance>342000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>338400.28000000</valUSD>
        <pctVal>0.219726900759</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-07-19</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</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</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Notes</title>
        <cusip>91282CDA6</cusip>
        <identifiers>
          <isin value="US91282CDA62"/>
        </identifiers>
        <balance>16765000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>16449346.57000000</valUSD>
        <pctVal>10.68073567004</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-09-30</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.25000000</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</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912796XQ7</cusip>
        <identifiers>
          <isin value="US912796XQ72"/>
        </identifiers>
        <balance>6135000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6073590.98000000</valUSD>
        <pctVal>3.943647217188</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-07-13</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</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>State Street Global Advisors</name>
        <lei>549300BZ5TGIFZUZDZ37</lei>
        <title>State Street Institutional US Government Money Market Fund</title>
        <cusip>857492706</cusip>
        <identifiers>
          <isin value="US8574927062"/>
        </identifiers>
        <balance>314577.27000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>314577.27000000</valUSD>
        <pctVal>0.204258367004</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>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Floating Rate Notes</title>
        <cusip>91282CFS5</cusip>
        <identifiers>
          <isin value="US91282CFS52"/>
        </identifiers>
        <balance>14400000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>14416463.23000000</valUSD>
        <pctVal>9.360762897256</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2024-10-31</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>5.27000000</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="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
      <explntrNote note="For purposes of Item C.6 identifying restricted securities,  a security that is subject to Rule 144A under the Securities Act of 1933, as amended, is identified as a restricted security only if the fund cannot sell the security to qualified institutional buyers at the report date due to the restrictions under Rule 144A." noteItem="C.6"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2023-10-19</ncom:dateSigned>
      <ncom:nameOfApplicant>DIMENSIONAL INVESTMENT GROUP INC</ncom:nameOfApplicant>
      <ncom:signature>Randy Olson</ncom:signature>
      <ncom:signerName>Randy Olson</ncom:signerName>
      <ncom:title>Vice President</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
