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  <xsd:element abstract="true" id="cohn_CraneHarborAcquisitionIMember" name="CraneHarborAcquisitionIMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_CraneHarborAcquisitionIiMember" name="CraneHarborAcquisitionIiMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_CreditFacilityMember" name="CreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DGCTrustMember" name="DGCTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DanielGCohenAndDgcTrustMember" name="DanielGCohenAndDgcTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DanielGCohenMember" name="DanielGCohenMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_DebtInstrumentAmountDueAndPayable" name="DebtInstrumentAmountDueAndPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DebtInstrumentCovenantMinimumTangibleNetWorth" name="DebtInstrumentCovenantMinimumTangibleNetWorth" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DebtInstrumentMinimumInterestRate" name="DebtInstrumentMinimumInterestRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DebtInstrumentTenorSpreadAdjustment" name="DebtInstrumentTenorSpreadAdjustment" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_DeferredTaxAssetsLiabilitiesGross" name="DeferredTaxAssetsLiabilitiesGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DeferredTaxAssetsLiabilitiesOther" name="DeferredTaxAssetsLiabilitiesOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DeferredTaxAssetsOperatingLossCarryforwardsDisallowedInterestExpense" name="DeferredTaxAssetsOperatingLossCarryforwardsDisallowedInterestExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DeferredTaxLiabilitiesUnrealizedGainOnDebt" name="DeferredTaxLiabilitiesUnrealizedGainOnDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_DividendsDistributionsToNoncontrollingInterests" name="DividendsDistributionsToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_DueFromDueToRelatedPartiesDisclosureTextBlock" name="DueFromDueToRelatedPartiesDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DueFromRelatedPartiesMember" name="DueFromRelatedPartiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_DutchRealEstateEntitiesMember" name="DutchRealEstateEntitiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EarningsPerShareAdjustment" name="EarningsPerShareAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mCompensationAmount" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mCompensationAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mCompensationPercent" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mCompensationPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EmployeesOtherMember" name="EmployeesOtherMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityAgreementMember" name="EquityAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityDerivativesMember" name="EquityDerivativesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityDistributionAgreementMember" name="EquityDistributionAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityIncentivePlan2010And2006EquityIncentivePlanMember" name="EquityIncentivePlan2010And2006EquityIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityIncentivePlan2020Member" name="EquityIncentivePlan2020Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityIncentivePlanMember" name="EquityIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_EquityMethodAffiliatesMember" name="EquityMethodAffiliatesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EquityMethodInvestmentAdditionalSharesReceivedForServices" name="EquityMethodInvestmentAdditionalSharesReceivedForServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EquityMethodInvestmentAmountReclassesToFromInvestment" name="EquityMethodInvestmentAmountReclassesToFromInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_EquityMethodInvestmentSharesReceivedFromServicesProvided" name="EquityMethodInvestmentSharesReceivedFromServicesProvided" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_ExecutiveChairmanMember" name="ExecutiveChairmanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_FTACEmeraldSponsorMember" name="FTACEmeraldSponsorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_FTACParnassusSponsorMember" name="FTACParnassusSponsorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_FTACVSponsorMember" name="FTACVSponsorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_FairValueOfCommonSecuritiesVariableInterestEntitiesTrusts" name="FairValueOfCommonSecuritiesVariableInterestEntitiesTrusts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_FairValueReceivablesMember" name="FairValueReceivablesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_FinancialCovenantTotalAmountDrawnMaximumPercentageOfTangibleNetWorth" name="FinancialCovenantTotalAmountDrawnMaximumPercentageOfTangibleNetWorth" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_ForeignGovernmentBondsMember" name="ForeignGovernmentBondsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_FurnitureAndEquipmentMember" name="FurnitureAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_GainOnSalesOfManagementContracts" name="GainOnSalesOfManagementContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_GestationalRepoBusinessMember" name="GestationalRepoBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_GrandCruFarmMember" name="GrandCruFarmMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_InKindDistributionFromEquityMethodAffiliateMember" name="InKindDistributionFromEquityMethodAffiliateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncomeTaxExpenseBenefitImpact" name="IncomeTaxExpenseBenefitImpact" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncomeTaxExpenseBenefitImpactPercent" name="IncomeTaxExpenseBenefitImpactPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInAccountsPayableAndOtherAccruedLiabilities" name="IncreaseDecreaseInAccountsPayableAndOtherAccruedLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInAccumulatedDeficit" name="IncreaseDecreaseInAccumulatedDeficit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInAcquisitionSurrenderOfAdditionalUnitsOfConsolidatedSubsidiaryNet" name="IncreaseDecreaseInAcquisitionSurrenderOfAdditionalUnitsOfConsolidatedSubsidiaryNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInEquityMethodAffiliates" name="IncreaseDecreaseInEquityMethodAffiliates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInOtherAssets" name="IncreaseDecreaseInOtherAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInOtherInvestments" name="IncreaseDecreaseInOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInOtherInvestmentsNotSold" name="IncreaseDecreaseInOtherInvestmentsNotSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInOtherInvestmentsSoldAndNotYetPurchased" name="IncreaseDecreaseInOtherInvestmentsSoldAndNotYetPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInReceivablesFromBrokersDealersAndClearingAgencies" name="IncreaseDecreaseInReceivablesFromBrokersDealersAndClearingAgencies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncreaseDecreaseInRedeemableFinancialInstrument" name="IncreaseDecreaseInRedeemableFinancialInstrument" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_IncrementalCommonSharesAttributableToRestrictedUnitsOrShares" name="IncrementalCommonSharesAttributableToRestrictedUnitsOrShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_InkindDistributionToNonconvertibleControllingInterestMember" name="InkindDistributionToNonconvertibleControllingInterestMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_InsuranceSPACMember" name="InsuranceSPACMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_InterestInSpvsMember" name="InterestInSpvsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InterestIncomeExpenseIncludingUnrealizedGainsAndLosses" name="InterestIncomeExpenseIncludingUnrealizedGainsAndLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InterestIncomeExpenseRelatedParty" name="InterestIncomeExpenseRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InterestIncomeFromRepurchaseAgreements" name="InterestIncomeFromRepurchaseAgreements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InterestPayableSecuritiesSoldNotYetPurchased" name="InterestPayableSecuritiesSoldNotYetPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_InvestmentAgreementMember" name="InvestmentAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_InvestmentBankingAndNewIssueReceivablesMember" name="InvestmentBankingAndNewIssueReceivablesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InvestmentOwnedClosingSharePrice" name="InvestmentOwnedClosingSharePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_InvestmentOwnedSharesReceivableValue" name="InvestmentOwnedSharesReceivableValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_InvestmentOwnedSharesReceived" name="InvestmentOwnedSharesReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_JKDCapitalPartnersILTDMember" name="JKDCapitalPartnersILTDMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_JKDInvestorMember" name="JKDInvestorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_JVBMember" name="JVBMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustNetOfOwnershipInterestInTrust" name="JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustNetOfOwnershipInterestInTrust" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_JuniorSubordinatedNotesMember" name="JuniorSubordinatedNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_LeasesUnderCashCommitmentsMember" name="LeasesUnderCashCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_LesseeFutureLeaseCommitmentsTableTextBlock" name="LesseeFutureLeaseCommitmentsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseAfterYearFive" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseAfterYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseTotal" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearFive" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearFour" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearOne" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearThree" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearTwo" name="LesseeOperatingLeaseLiabilityToBePaidNetOfSubleaseYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LineOfCreditFacilityMinimumAssetCapital" name="LineOfCreditFacilityMinimumAssetCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LineOfCreditFacilityMinimumRequestInReductionOfMaximumBorrowingCapacity" name="LineOfCreditFacilityMinimumRequestInReductionOfMaximumBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_LineOfCreditFacilityReductionInMaximumBorrowingCapacityIncrementsAfterMinimum" name="LineOfCreditFacilityReductionInMaximumBorrowingCapacityIncrementsAfterMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_LiquidationMember" name="LiquidationMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_LondonInterbankOfferedRateMember" name="LondonInterbankOfferedRateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_LongTermIncentivePlan2010AndAfn2006PlanMember" name="LongTermIncentivePlan2010AndAfn2006PlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_MarginLoanCollateralMember" name="MarginLoanCollateralMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_MembershipInterestsMember" name="MembershipInterestsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_MembershipUnitsMember" name="MembershipUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_MinorityInterestIncreaseDecreaseNet" name="MinorityInterestIncreaseDecreaseNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_MinorityInterestIncreaseDecreaseRelatedToUnitsOfConsolidatedSubsidiary" name="MinorityInterestIncreaseDecreaseRelatedToUnitsOfConsolidatedSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_MinorityInterestIncreaseNonconvertibleNoncontrollingInterests" name="MinorityInterestIncreaseNonconvertibleNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_MrCohenMember" name="MrCohenMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NetCapitalUnderSecuritiesAndExchangeCommissionRegulationDisclosureTextBlock" name="NetCapitalUnderSecuritiesAndExchangeCommissionRegulationDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NetIncomeLossAsAPercentageOfRevenue" name="NetIncomeLossAsAPercentageOfRevenue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NetIncomeLossAttributableToParentCompanyAsAPercentageOfRevenue" name="NetIncomeLossAttributableToParentCompanyAsAPercentageOfRevenue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NewIssueAndAdvisoryMember" name="NewIssueAndAdvisoryMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NewIssueFeeReceivable" name="NewIssueFeeReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_NewIssueFeeReceivableAllowanceForCreditLosses" name="NewIssueFeeReceivableAllowanceForCreditLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_NewIssueFeeReceivableNetAllowanceForCreditLosses" name="NewIssueFeeReceivableNetAllowanceForCreditLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_NoncashAdvisoryFeesReceived" name="NoncashAdvisoryFeesReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NoncashConsiderationMember" name="NoncashConsiderationMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestChangesInOwnershipActivityTableTextBlock" name="NoncontrollingInterestChangesInOwnershipActivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestDecreaseIncreaseNet" name="NoncontrollingInterestDecreaseIncreaseNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestEconomicInterestOwnershipPercentageByParent" name="NoncontrollingInterestEconomicInterestOwnershipPercentageByParent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_NoncontrollingInterestIncreaseConvertibleInterestInvestment" name="NoncontrollingInterestIncreaseConvertibleInterestInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestIncreaseDecreaseFromBusinessCombinationDeconsolidation" name="NoncontrollingInterestIncreaseDecreaseFromBusinessCombinationDeconsolidation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestIncreaseFromDistributionsToNoncontrollingInterestHolders" name="NoncontrollingInterestIncreaseFromDistributionsToNoncontrollingInterestHolders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestIncreaseFromEquitybasedCompensation" name="NoncontrollingInterestIncreaseFromEquitybasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NoncontrollingInterestOfCohenCoMember" name="NoncontrollingInterestOfCohenCoMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NoncontrollingInterestOfOperatingLlcMember" name="NoncontrollingInterestOfOperatingLlcMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestSharebasedPaymentArrangementDecreaseForTaxWithholdingObligation" name="NoncontrollingInterestSharebasedPaymentArrangementDecreaseForTaxWithholdingObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NoncontrollingInterestVotingInterestOwnershipPercentageByParent" name="NoncontrollingInterestVotingInterestOwnershipPercentageByParent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_NonconvertibleSeniorNotes10002020SeniorNotesMember" name="NonconvertibleSeniorNotes10002020SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NonconvertibleSeniorNotes12002020SeniorNotesMember" name="NonconvertibleSeniorNotes12002020SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NonconvertibleSeniorNotes12002024SeniorNotesMember" name="NonconvertibleSeniorNotes12002024SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NonconvertibleSeniorNotesMember" name="NonconvertibleSeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NorthlandCapitalMarketsMember" name="NorthlandCapitalMarketsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NotePurchaseAgreementMember" name="NotePurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NotesReceivableMaximumAdditionalAmount" name="NotesReceivableMaximumAdditionalAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NumberOfFractalUnitsIssued" name="NumberOfFractalUnitsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_NumberOfRedeemedLlcUnits" name="NumberOfRedeemedLlcUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_NumberOfUnitsSold" name="NumberOfUnitsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OccupancyAndEquipmentExpense" name="OccupancyAndEquipmentExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OciItemsMember" name="OciItemsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OperatingExpenseIncomeRelatedPartyTransactions" name="OperatingExpenseIncomeRelatedPartyTransactions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OperatingIncomeLossAsAPercentageOfRevenue" name="OperatingIncomeLossAsAPercentageOfRevenue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OperatingLLCMember" name="OperatingLLCMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OriginationMember" name="OriginationMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherComprehensiveIncomeAcquisitionSurrenderOfAdditionalUnits" name="OtherComprehensiveIncomeAcquisitionSurrenderOfAdditionalUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OtherConsolidatedSubsidiariesMember" name="OtherConsolidatedSubsidiariesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherEventsTextBlock" name="OtherEventsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherInvestmentSoldGainLossFairValue" name="OtherInvestmentSoldGainLossFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherInvestmentSoldNotYetPurchased" name="OtherInvestmentSoldNotYetPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_OtherInvestmentSoldNotYetPurchasedGainLoss" name="OtherInvestmentSoldNotYetPurchasedGainLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherInvestmentsFairValueDisclosure" name="OtherInvestmentsFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_OtherInvestmentsSoldNotYetPurchasedFairValue" name="OtherInvestmentsSoldNotYetPurchasedFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_OtherMiscellaneousReceivables" name="OtherMiscellaneousReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_OtherReceivablesOtherAssetsAccountsPayableAndOtherLiabilitiesTextBlock" name="OtherReceivablesOtherAssetsAccountsPayableAndOtherLiabilitiesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OtherSpacSponsorEntitiesMember" name="OtherSpacSponsorEntitiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OtherStateDepartmentsOfRevenueMember" name="OtherStateDepartmentsOfRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_OtherTradingRevenue" name="OtherTradingRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OthersMember" name="OthersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_OvernightAndContinuousMember" name="OvernightAndContinuousMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PartnersCapitalAccountUnitRedemptions" name="PartnersCapitalAccountUnitRedemptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PartnersCapitalAccountUnitsVesting" name="PartnersCapitalAccountUnitsVesting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PaymentsForRedeemableFinancialInstruments" name="PaymentsForRedeemableFinancialInstruments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PaymentsForRedemptionOfConvertibleNoncontrollingInterestUnits" name="PaymentsForRedemptionOfConvertibleNoncontrollingInterestUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PaymentsToAcquireEquityMethodInvestmentsIncludingNoncashTransfer" name="PaymentsToAcquireEquityMethodInvestmentsIncludingNoncashTransfer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PaymentsToAcquireOtherInvestmentsSoldNotYetPurchased" name="PaymentsToAcquireOtherInvestmentsSoldNotYetPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_PennsylvaniaDepartmentOfRevenueMember" name="PennsylvaniaDepartmentOfRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_PercentOfOwnershipToProvideControllingVoteMember" name="PercentOfOwnershipToProvideControllingVoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PercentageOfPurchasePriceRequiredForAdjustments" name="PercentageOfPurchasePriceRequiredForAdjustments" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_PlacementUnitAndWarrantsMember" name="PlacementUnitAndWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PreferredStockVotingRightsPerShare" name="PreferredStockVotingRightsPerShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_PrincipalInvestingMember" name="PrincipalInvestingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PrincipalTransactionsAndOtherIncome" name="PrincipalTransactionsAndOtherIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PrincipalTransactionsAndOtherIncomeRelatedParty" name="PrincipalTransactionsAndOtherIncomeRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_PrincipleTransactions" name="PrincipleTransactions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ProceedsFromIssuanceOrSaleOfEquityGross" name="ProceedsFromIssuanceOrSaleOfEquityGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ProceedsFromRedeemableFinancialInstruments" name="ProceedsFromRedeemableFinancialInstruments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ProceedsFromSaleAndMaturityOfOtherInvestmentsNotYetPurchased" name="ProceedsFromSaleAndMaturityOfOtherInvestmentsNotYetPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RatioOfSharesToVote" name="RatioOfSharesToVote" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ReceivablesFromUnsettledRegularWayTradesNet" name="ReceivablesFromUnsettledRegularWayTradesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="cohn_RedeemableFinancialInstrumentJkdCapitalPartnersILtdMember" name="RedeemableFinancialInstrumentJkdCapitalPartnersILtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RedeemableFinancialInstruments" name="RedeemableFinancialInstruments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="cohn_RedeemableNoncontrollingInterestMembershipUnitsNotHeldShareRatio" name="RedeemableNoncontrollingInterestMembershipUnitsNotHeldShareRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RedeemedLlcUnitsPricePerUnit" name="RedeemedLlcUnitsPricePerUnit" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_ReductionInCashFromDisposalOfInterestInSubsidiary" name="ReductionInCashFromDisposalOfInterestInSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RelatedPartyInvestmentBankingAndNewIssue" name="RelatedPartyInvestmentBankingAndNewIssue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RelatedPartyTransactionAmountsOfTransactionUnits" name="RelatedPartyTransactionAmountsOfTransactionUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RelatedPartyTransactionsAssetManagementFees" name="RelatedPartyTransactionsAssetManagementFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RepaymentsOfRedeemableFinancialInstrument" name="RepaymentsOfRedeemableFinancialInstrument" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RepurchaseOfWarrantsPricePerShare" name="RepurchaseOfWarrantsPricePerShare" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ReserveRequirementsTextBlock" name="ReserveRequirementsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_RestrictedLlcUnitsMember" name="RestrictedLlcUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_RestrictedOperatingLlcUnitsMember" name="RestrictedOperatingLlcUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_RestrictedStockAndRestrictedStockUnitsMember" name="RestrictedStockAndRestrictedStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RevenueFromContractWithCustomerExcludingAssessedTaxCash" name="RevenueFromContractWithCustomerExcludingAssessedTaxCash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="cohn_RevenuesBeforeGainLossOnFinancialInstruments" name="RevenuesBeforeGainLossOnFinancialInstruments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_S2026M1DividendsMember" name="S2026M1DividendsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SFATransactionMember" name="SFATransactionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SPACFundMember" name="SPACFundMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SaleOfEquityInterestInVellarGPMember" name="SaleOfEquityInterestInVellarGPMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_SaleOfStockCommissionPercent" name="SaleOfStockCommissionPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_SaleOfStockMaximumSharesPermittedBySEC" name="SaleOfStockMaximumSharesPermittedBySEC" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/>
  <xsd:element id="cohn_SalesPriceOfManagementContract" name="SalesPriceOfManagementContract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SavingPlan401kMember" name="SavingPlan401kMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SbaLoansMember" name="SbaLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfAccruedCompensationTableTextBlock" name="ScheduleOfAccruedCompensationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfDueFromOrDueToRelatedPartiesTableTextBlock" name="ScheduleOfDueFromOrDueToRelatedPartiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfInterestExpenseByDebtInstrumentTableTextBlock" name="ScheduleOfInterestExpenseByDebtInstrumentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfInvestmentBankingAndNewIssueTableTextBlock" name="ScheduleOfInvestmentBankingAndNewIssueTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfNetTradingTableTextBlock" name="ScheduleOfNetTradingTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfOtherInvestmentsAtFairValueTableTextBlock" name="ScheduleOfOtherInvestmentsAtFairValueTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfTaxPaymentsMadeAndRefundsReceivedTableTextBlock" name="ScheduleOfTaxPaymentsMadeAndRefundsReceivedTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_ScheduleOfUnrestrictedCommonStockAndRestrictedCommonStockActivityTableTextBlock" name="ScheduleOfUnrestrictedCommonStockAndRestrictedCommonStockActivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SecuredOvernightFinancingRateSofr1Member" name="SecuredOvernightFinancingRateSofr1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="cohn_SecuritiesPurchasedUnderAgreementsToResellAverageRate" name="SecuritiesPurchasedUnderAgreementsToResellAverageRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_SeniorNote20202024Member" name="SeniorNote20202024Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="cohn_statement-statement-note-32-due-from-due-to-related-parties-due-from-due-to-related-parties-details" name="statement-statement-note-32-due-from-due-to-related-parties-due-from-due-to-related-parties-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-32-due-from-due-to-related-parties-tables" name="statement-statement-note-32-due-from-due-to-related-parties-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-4-other-recent-events-spac-investment-details" name="statement-statement-note-4-other-recent-events-spac-investment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-4-other-recent-events-tables" name="statement-statement-note-4-other-recent-events-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-investment-banking-and-new-issue-details" name="statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-investment-banking-and-new-issue-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-net-trading-details" name="statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-net-trading-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-tables" name="statement-statement-note-5-investment-banking-and-new-issue-and-net-trading-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-6-receivables-from-and-payables-to-brokers-dealers-and-clearing-agencies-receivables-from-and-payables-to-from-brokers-dealers-and-clearing-agencies-details" name="statement-statement-note-6-receivables-from-and-payables-to-brokers-dealers-and-clearing-agencies-receivables-from-and-payables-to-from-brokers-dealers-and-clearing-agencies-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-6-receivables-from-and-payables-to-brokers-dealers-and-clearing-agencies-tables" name="statement-statement-note-6-receivables-from-and-payables-to-brokers-dealers-and-clearing-agencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-7-other-receivables-other-receivables-details" name="statement-statement-note-7-other-receivables-other-receivables-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-7-other-receivables-tables" name="statement-statement-note-7-other-receivables-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-8-financial-instruments-financial-instruments-sold-not-yet-purchased-details" name="statement-statement-note-8-financial-instruments-financial-instruments-sold-not-yet-purchased-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-8-financial-instruments-investments-trading-details" name="statement-statement-note-8-financial-instruments-investments-trading-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-8-financial-instruments-other-investments-at-fair-value-details" name="statement-statement-note-8-financial-instruments-other-investments-at-fair-value-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-8-financial-instruments-tables" name="statement-statement-note-8-financial-instruments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-9-fair-value-disclosures-fair-value-measurements-of-investments-in-certain-entities-that-calculate-net-asset-value-per-share-or-its-equivalent-details" name="statement-statement-note-9-fair-value-disclosures-fair-value-measurements-of-investments-in-certain-entities-that-calculate-net-asset-value-per-share-or-its-equivalent-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-9-fair-value-disclosures-fair-value-measurements-on-a-recurring-basis-details" name="statement-statement-note-9-fair-value-disclosures-fair-value-measurements-on-a-recurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-note-9-fair-value-disclosures-tables" name="statement-statement-note-9-fair-value-disclosures-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-schedule-i-condensed-financial-information-of-registrant-details" name="statement-statement-schedule-i-condensed-financial-information-of-registrant-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-schedule-i-condensed-statements-of-operations-details" name="statement-statement-schedule-i-condensed-statements-of-operations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-schedule-i-statements-of-cash-flows-details" name="statement-statement-schedule-i-statements-of-cash-flows-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="cohn_statement-statement-schedule-i-tables" name="statement-statement-schedule-i-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
</XBRL>
