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  <xsd:element id="cme_AccessAndCommunicationFees" name="AccessAndCommunicationFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_AccountingStandardsUpdate201802Member" name="AccountingStandardsUpdate201802Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_AgreementAutomaticRenewalPeriod" name="AgreementAutomaticRenewalPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_AgriculturalcommodityMember" name="AgriculturalcommodityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_AverageDailyClearingSettlement" name="AverageDailyClearingSettlement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_ClassBCommonStockClassB1Member" name="ClassBCommonStockClassB1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_ClassBCommonStockClassB2Member" name="ClassBCommonStockClassB2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_ClassBCommonStockClassB3Member" name="ClassBCommonStockClassB3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_ClassBCommonStockClassB4Member" name="ClassBCommonStockClassB4Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_Definedbenefitplannonoperatingincomeexpense" name="Definedbenefitplannonoperatingincomeexpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_EnergyMember" name="EnergyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_EquitiesMember" name="EquitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_FairvalueofDebtInstrumentsTableTextBlock" name="FairvalueofDebtInstrumentsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_FamilyFarmerAndRanchersProtectionFundMember" name="FamilyFarmerAndRanchersProtectionFundMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_FederalReserveReinvestmentMember" name="FederalReserveReinvestmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_ForwardStartingInterestRateSwapAgreementFixedRate" name="ForwardStartingInterestRateSwapAgreementFixedRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_Futurelosses" name="Futurelosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cme_GuaranteeCollateral" name="GuaranteeCollateral" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_InterestRateMember" name="InterestRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_MarginDepositsAndGuarantyFundsLiabilitiesCurrent" name="MarginDepositsAndGuarantyFundsLiabilitiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cme_MetalMember" name="MetalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_OnetimechargesandmiscellaneousrevenuesMember" name="OnetimechargesandmiscellaneousrevenuesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_Paymentpercooperative" name="Paymentpercooperative" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cme_Paymentperparticipant" name="Paymentperparticipant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cme_PaymentsunderGuarantee" name="PaymentsunderGuarantee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_PerformanceBondsandGuarantyFundContributionsAbstract" name="PerformanceBondsandGuarantyFundContributionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cme_PerformanceBondsandGuarantyFundContributionsTextBlock" name="PerformanceBondsandGuarantyFundContributionsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_SevenHundredFiftyMillionFixedRateNotesDueMarchTwoThousandFortyThreeInterestEqualToFivePointThreePercentMember" name="SevenHundredFiftyMillionFixedRateNotesDueMarchTwoThousandFortyThreeInterestEqualToFivePointThreePercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_SevenHundredFiftyMillionFixedRateNotesDueMarchTwoThousandTwentyTwoInterestEqualToThreePointZeroPercentMemberMember" name="SevenHundredFiftyMillionFixedRateNotesDueMarchTwoThousandTwentyTwoInterestEqualToThreePointZeroPercentMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_SevenHundredFiftyMillionFixedRateNotesDueSeptemberTwoThousandFortyThreeInterestEqualToFivePointThreePercentMemberMember" name="SevenHundredFiftyMillionFixedRateNotesDueSeptemberTwoThousandFortyThreeInterestEqualToFivePointThreePercentMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_SevenHundredFiftyMillionFixedRateNotesDueSeptemberTwoThousandTwentyTwoInterestEqualToThreePointZeroPercenMember" name="SevenHundredFiftyMillionFixedRateNotesDueSeptemberTwoThousandTwentyTwoInterestEqualToThreePointZeroPercenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cme_U.S.GovernmentAgencySecurityPerformanceBondMember" name="U.S.GovernmentAgencySecurityPerformanceBondMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
