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  <xs:element id="intl_ExchangeTradedCommodityContractsMember" abstract="true" name="ExchangeTradedCommodityContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_Noncashequivalentsegregatedassets" abstract="false" name="Noncashequivalentsegregatedassets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_DepositsAndReceivablesFromExchangeClearingOrganizationsDomain" abstract="true" name="DepositsAndReceivablesFromExchangeClearingOrganizationsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_InstitutionalSegmentMember" abstract="true" name="InstitutionalSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBrokerDealerPayableToCustomer" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBrokerDealerPayableToCustomer" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_FinancialInstrumentSoldNotYetPurchasedMember" abstract="true" name="FinancialInstrumentSoldNotYetPurchasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_CommoditiesLeasesAndUnpricedPositionsMember" abstract="true" name="CommoditiesLeasesAndUnpricedPositionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_CommissionandClearingFeesMember" abstract="true" name="CommissionandClearingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_NumberOfGlobalFinancialMarkets" abstract="false" name="NumberOfGlobalFinancialMarkets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="intl_DepositsAndReceivablesFromExchangeClearingOrganizationsAxis" abstract="true" name="DepositsAndReceivablesFromExchangeClearingOrganizationsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
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  <xs:element id="intl_CottonDistributorsIncMember" abstract="true" name="CottonDistributorsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxesPayable" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_CashSegregatedAndDepositedWithOrPledgedToExchangeClearingOrganizationsAndOtherFuturesCommissionMerchants" abstract="false" name="CashSegregatedAndDepositedWithOrPledgedToExchangeClearingOrganizationsAndOtherFuturesCommissionMerchants" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_BrokerDealerPayableToCustomerFairValue" abstract="false" name="BrokerDealerPayableToCustomerFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_GoodwillAndIntangibleAssetsAcquiredDuringThePeriod" abstract="false" name="GoodwillAndIntangibleAssetsAcquiredDuringThePeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_MutualFundTrailingCommissionsMember" abstract="true" name="MutualFundTrailingCommissionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_DepositsAndReceivablesFromBrokerDealersClearingOrganizationsAndCounterpartiesAxis" abstract="true" name="DepositsAndReceivablesFromBrokerDealersClearingOrganizationsAndCounterpartiesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="intl_DirectorAndPublicCompanyExpenses" abstract="false" name="DirectorAndPublicCompanyExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_ClientsMember" abstract="true" name="ClientsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_ExchangeTradedInterestRateContractsMember" abstract="true" name="ExchangeTradedInterestRateContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_ReceivablesFromClearingOrganizationsIncludingNettingAdjustment" abstract="false" name="ReceivablesFromClearingOrganizationsIncludingNettingAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_AccountsPayableIncludingNettingAdjustmentFairValueDisclosure" abstract="false" name="AccountsPayableIncludingNettingAdjustmentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_OtherComprehensiveIncomeLossDerivativeLiabilitiesCashFlowHedgeGainLossReclassificationBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossDerivativeLiabilitiesCashFlowHedgeGainLossReclassificationBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_Payablestobdsandcounterpartiesatfairvalue" abstract="false" name="Payablestobdsandcounterpartiesatfairvalue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_OfficeTradingArrangementMember" abstract="true" name="OfficeTradingArrangementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="intl_ClientAccountFeesMember" abstract="true" name="ClientAccountFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_AgriculturalAndEnergyProductTradingMember" abstract="true" name="AgriculturalAndEnergyProductTradingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_OtherCountryNotMentionedAboveMember" abstract="true" name="OtherCountryNotMentionedAboveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositsWithAndReceivablesFromBrokerDealersClearingOrganizationsAndCounterparties" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositsWithAndReceivablesFromBrokerDealersClearingOrganizationsAndCounterparties" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_FinancialInstrumentsOwnedMember" abstract="true" name="FinancialInstrumentsOwnedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPayableToLendersUnderLoans" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPayableToLendersUnderLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_FinancialInstrumentsWithOffBalanceSheetRiskAndConcentrationsOfCreditRiskAbstract" abstract="true" name="FinancialInstrumentsWithOffBalanceSheetRiskAndConcentrationsOfCreditRiskAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="intl_NumberOfAccounts" abstract="false" name="NumberOfAccounts" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="intl_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTaxForecastedTransactionNotProbable" abstract="false" name="OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTaxForecastedTransactionNotProbable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_DepositsAndReceivablesFromBDSAndCounterpartiesAtFairValue" abstract="false" name="DepositsAndReceivablesFromBDSAndCounterpartiesAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_ReceivablesFromCustomersFairValueDisclosure" abstract="false" name="ReceivablesFromCustomersFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_PayablesToBrokerDealersClearingOrganizationsAndCounterpartiesAxis" abstract="true" name="PayablesToBrokerDealersClearingOrganizationsAndCounterpartiesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
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  <xs:element id="intl_DepositsAndReceivablesFromExchangeClearingOrganizationsMember" abstract="true" name="DepositsAndReceivablesFromExchangeClearingOrganizationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="intl_InterestExpenseOnCorporateFunding" abstract="false" name="InterestExpenseOnCorporateFunding" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_SupplierRelationshipMember" abstract="true" name="SupplierRelationshipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_ExchangeTradedFuturesAndOptionsMember" abstract="true" name="ExchangeTradedFuturesAndOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_MiddleEastAndAsiaMember" abstract="true" name="MiddleEastAndAsiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_IncommSASMember" abstract="true" name="IncommSASMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_TBAAndForwardSettlingSecuritiesMember" abstract="true" name="TBAAndForwardSettlingSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_AccountsPayableAndOtherAccruedLiabilitiesIncludingContingentLiabilitiesDomain" abstract="true" name="AccountsPayableAndOtherAccruedLiabilitiesIncludingContingentLiabilitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_SeniorNotesDueTwentyTwentyFiveMember" abstract="true" name="SeniorNotesDueTwentyTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_SecuritiesAndOtherAssetsSegregatedUnderFederalAndOtherRegulationsAxis" abstract="true" name="SecuritiesAndOtherAssetsSegregatedUnderFederalAndOtherRegulationsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="intl_NumberOfCommercialAndInstitutionalClients" abstract="false" name="NumberOfCommercialAndInstitutionalClients" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="intl_AccountsPayableAndOtherAccruedLiabilitiesFairValue" abstract="false" name="AccountsPayableAndOtherAccruedLiabilitiesFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_PayablesToClientsMember" abstract="true" name="PayablesToClientsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccountsPayableAndOtherAccruedLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccountsPayableAndOtherAccruedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_SegmentIncome" abstract="false" name="SegmentIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBrokerDealerPayableToOtherBrokerDealerAndClearingOrganization" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBrokerDealerPayableToOtherBrokerDealerAndClearingOrganization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="intl_SweepProgramFeesMember" abstract="true" name="SweepProgramFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_OtherSalesBasedCommissionsMember" abstract="true" name="OtherSalesBasedCommissionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_ReceivableFromClientsNetMember" abstract="true" name="ReceivableFromClientsNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_AmountOutstandingOnCommittedCreditFacilities" abstract="false" name="AmountOutstandingOnCommittedCreditFacilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_PhysicalCommoditiesInventoryDomain" abstract="true" name="PhysicalCommoditiesInventoryDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_CommoditiesWarehouseReceiptsMember" abstract="true" name="CommoditiesWarehouseReceiptsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_MembershipExpense" abstract="false" name="MembershipExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_PreciousMetalsRetailSalesMember" abstract="true" name="PreciousMetalsRetailSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_GlobalPaymentsSegmentMember" abstract="true" name="GlobalPaymentsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_StoneXIncBankOfAmericaSyndicatedCreditFacilityMember" abstract="true" name="StoneXIncBankOfAmericaSyndicatedCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_FMSSubNoteCommodityLineOfCreditFacilityMember" abstract="true" name="FMSSubNoteCommodityLineOfCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_ContingentConsiderationMember" abstract="true" name="ContingentConsiderationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_CommercialSegmentMember" abstract="true" name="CommercialSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_StoneXFinancialPteLtdMember" abstract="true" name="StoneXFinancialPteLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="intl_AccountsReceivableIncludingNettingAdjustmentFairValueDisclosure" abstract="false" name="AccountsReceivableIncludingNettingAdjustmentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_OtherDirectBusinessExpenses" abstract="false" name="OtherDirectBusinessExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="intl_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" abstract="false" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="intl_StoneXLtdMember" abstract="true" name="StoneXLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
