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  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ck0001540305_OptionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_OptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Options Risk Member</link:label>
    <link:label id="lab_ck0001540305_OptionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_OptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Options Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_OptionsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_OptionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_OptionsRiskMember" xlink:to="lab_ck0001540305_OptionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_BoxSpreadRiskMember_label_en-US" xlink:label="lab_ck0001540305_BoxSpreadRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Box Spread Risk Member</link:label>
    <link:label id="lab_ck0001540305_BoxSpreadRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_BoxSpreadRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Box Spread Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_BoxSpreadRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_BoxSpreadRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_BoxSpreadRiskMember" xlink:to="lab_ck0001540305_BoxSpreadRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000249926Member_label_en-US" xlink:label="lab_ck0001540305_C000249926Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus October Buffer ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000249926Member_documentation_en-US" xlink:label="lab_ck0001540305_C000249926Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085063 Aptus October Buffer ETF C000249926 Aptus October Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000249926Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000249926Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000249926Member" xlink:to="lab_ck0001540305_C000249926Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Small-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Small-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_MarketCapitalizationRiskSmallCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Liquidity Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Liquidity Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_LimitedOperatingHistoryRiskMember_label_en-US" xlink:label="lab_ck0001540305_LimitedOperatingHistoryRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Operating History Risk Member</link:label>
    <link:label id="lab_ck0001540305_LimitedOperatingHistoryRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_LimitedOperatingHistoryRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Limited Operating History Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_LimitedOperatingHistoryRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_LimitedOperatingHistoryRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_LimitedOperatingHistoryRiskMember" xlink:to="lab_ck0001540305_LimitedOperatingHistoryRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ValueStyleInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_ValueStyleInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Value-Style Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_ValueStyleInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ValueStyleInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Value-Style Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ValueStyleInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ValueStyleInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ValueStyleInvestingRiskMember" xlink:to="lab_ck0001540305_ValueStyleInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000249923Member_label_en-US" xlink:label="lab_ck0001540305_C000249923Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus January Buffer ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000249923Member_documentation_en-US" xlink:label="lab_ck0001540305_C000249923Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085060 Aptus January Buffer ETF C000249923 Aptus January Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000249923Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000249923Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000249923Member" xlink:to="lab_ck0001540305_C000249923Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ReturnOfCapitalRiskMember_label_en-US" xlink:label="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Return Of Capital Risk Member</link:label>
    <link:label id="lab_ck0001540305_ReturnOfCapitalRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Return Of Capital Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ReturnOfCapitalRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ReturnOfCapitalRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ReturnOfCapitalRiskMember" xlink:to="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskOptionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Options Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskOptionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Options Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskOptionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S&amp;P 500&#174; Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S&amp;P 500&#174; Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001540305_SandP500IndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000077779Member_label_en-US" xlink:label="lab_ck0001540305_S000077779Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Enhanced Yield ETF</link:label>
    <link:label id="lab_ck0001540305_S000077779Member_documentation_en-US" xlink:label="lab_ck0001540305_S000077779Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000077779 Aptus Enhanced Yield ETF C000238324 Aptus Enhanced Yield ETF JUCY</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000077779Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000077779Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000077779Member" xlink:to="lab_ck0001540305_S000077779Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:to="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:to="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Counterparty Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Counterparty Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskCounterpartyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CounterpartyRiskMember_label_en-US" xlink:label="lab_ck0001540305_CounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Risk Member</link:label>
    <link:label id="lab_ck0001540305_CounterpartyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Counterparty Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CounterpartyRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CounterpartyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CounterpartyRiskMember" xlink:to="lab_ck0001540305_CounterpartyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Extension Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Extension Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskExtensionRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DepositaryReceiptRiskMember_label_en-US" xlink:label="lab_ck0001540305_DepositaryReceiptRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depositary Receipt Risk Member</link:label>
    <link:label id="lab_ck0001540305_DepositaryReceiptRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DepositaryReceiptRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Depositary Receipt Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DepositaryReceiptRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DepositaryReceiptRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DepositaryReceiptRiskMember" xlink:to="lab_ck0001540305_DepositaryReceiptRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000085061Member_label_en-US" xlink:label="lab_ck0001540305_S000085061Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus April Buffer ETF</link:label>
    <link:label id="lab_ck0001540305_S000085061Member_documentation_en-US" xlink:label="lab_ck0001540305_S000085061Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085061 Aptus April Buffer ETF C000249924 Aptus April Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000085061Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000085061Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000085061Member" xlink:to="lab_ck0001540305_S000085061Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesTaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesTaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesTaxRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesTaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesTaxRiskMember" xlink:to="lab_ck0001540305_DerivativesTaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000080587Member_label_en-US" xlink:label="lab_ck0001540305_S000080587Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Enhanced Yield ETF</link:label>
    <link:label id="lab_ck0001540305_S000080587Member_documentation_en-US" xlink:label="lab_ck0001540305_S000080587Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Enhanced Yield ETF / Series S000080587 Aptus Large Cap Enhanced Yield ETF / Class C000243096</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000080587Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000080587Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000080587Member" xlink:to="lab_ck0001540305_S000080587Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskConsumerSectorsRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskConsumerSectorsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Consumer Sectors Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskConsumerSectorsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskConsumerSectorsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Consumer Sectors Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskConsumerSectorsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskConsumerSectorsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskConsumerSectorsRiskMember" xlink:to="lab_ck0001540305_SectorRiskConsumerSectorsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_REITInvestmentRiskMember_label_en-US" xlink:label="lab_ck0001540305_REITInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">REIT Investment Risk Member</link:label>
    <link:label id="lab_ck0001540305_REITInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_REITInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">REIT Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_REITInvestmentRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_REITInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_REITInvestmentRiskMember" xlink:to="lab_ck0001540305_REITInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ICE U.S. Treasury 1-3 Year Bond Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ICE U.S. Treasury 1-3 Year Bond Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001540305_ICEUSTreasury1to3YearBondTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketFluctuationTaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketFluctuationTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Fluctuation Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketFluctuationTaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketFluctuationTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Fluctuation Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketFluctuationTaxRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketFluctuationTaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketFluctuationTaxRiskMember" xlink:to="lab_ck0001540305_MarketFluctuationTaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000085060Member_label_en-US" xlink:label="lab_ck0001540305_S000085060Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus January Buffer ETF</link:label>
    <link:label id="lab_ck0001540305_S000085060Member_documentation_en-US" xlink:label="lab_ck0001540305_S000085060Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085060 Aptus January Buffer ETF C000249923 Aptus January Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000085060Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000085060Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000085060Member" xlink:to="lab_ck0001540305_S000085060Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CapChangeRiskMember_label_en-US" xlink:label="lab_ck0001540305_CapChangeRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cap Change Risk Member</link:label>
    <link:label id="lab_ck0001540305_CapChangeRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CapChangeRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cap Change Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CapChangeRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CapChangeRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CapChangeRiskMember" xlink:to="lab_ck0001540305_CapChangeRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000243096Member_label_en-US" xlink:label="lab_ck0001540305_C000243096Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Enhanced Yield ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000243096Member_documentation_en-US" xlink:label="lab_ck0001540305_C000243096Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Enhanced Yield ETF / Series S000080587 Aptus Large Cap Enhanced Yield ETF / Class C000243096</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000243096Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000243096Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000243096Member" xlink:to="lab_ck0001540305_C000243096Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Interest Rate Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Interest Rate Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskInterestRateRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember" xlink:to="lab_ck0001540305_ETFRisksSharesOfTheFundMayTradeAtPricesOtherThanNAVRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksMember" xlink:to="lab_ck0001540305_ETFRisksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Prepayment Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Prepayment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskPrepaymentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GovernmentSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_GovernmentSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Government Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_GovernmentSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GovernmentSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Government Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GovernmentSecuritiesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_GovernmentSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GovernmentSecuritiesRiskMember" xlink:to="lab_ck0001540305_GovernmentSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SPYEquityRiskMember_label_en-US" xlink:label="lab_ck0001540305_SPYEquityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SPY Equity Risk Member</link:label>
    <link:label id="lab_ck0001540305_SPYEquityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SPYEquityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SPY Equity Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SPYEquityRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SPYEquityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SPYEquityRiskMember" xlink:to="lab_ck0001540305_SPYEquityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DeferredIncomeStrategyRiskMember_label_en-US" xlink:label="lab_ck0001540305_DeferredIncomeStrategyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Strategy Risk Member</link:label>
    <link:label id="lab_ck0001540305_DeferredIncomeStrategyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DeferredIncomeStrategyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Income Strategy Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DeferredIncomeStrategyRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DeferredIncomeStrategyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DeferredIncomeStrategyRiskMember" xlink:to="lab_ck0001540305_DeferredIncomeStrategyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:to="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Large-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Large-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_MarketCapitalizationRiskLargeCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FLEXOptionsValuationRiskMember_label_en-US" xlink:label="lab_ck0001540305_FLEXOptionsValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FLEX Options Valuation Risk Member</link:label>
    <link:label id="lab_ck0001540305_FLEXOptionsValuationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FLEXOptionsValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FLEX Options Valuation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FLEXOptionsValuationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FLEXOptionsValuationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FLEXOptionsValuationRiskMember" xlink:to="lab_ck0001540305_FLEXOptionsValuationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CurrencyExchangeRateRiskMember_label_en-US" xlink:label="lab_ck0001540305_CurrencyExchangeRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Currency Exchange Rate Risk Member</link:label>
    <link:label id="lab_ck0001540305_CurrencyExchangeRateRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CurrencyExchangeRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Currency Exchange Rate Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CurrencyExchangeRateRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CurrencyExchangeRateRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CurrencyExchangeRateRiskMember" xlink:to="lab_ck0001540305_CurrencyExchangeRateRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_TailHedgeRiskMember_label_en-US" xlink:label="lab_ck0001540305_TailHedgeRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tail Hedge Risk Member</link:label>
    <link:label id="lab_ck0001540305_TailHedgeRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_TailHedgeRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tail Hedge Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_TailHedgeRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_TailHedgeRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_TailHedgeRiskMember" xlink:to="lab_ck0001540305_TailHedgeRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskCommunicationsSectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskCommunicationsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Communications Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskCommunicationsSectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskCommunicationsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Communications Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskCommunicationsSectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskCommunicationsSectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskCommunicationsSectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskCommunicationsSectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Duration Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Duration Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskDurationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ManagementRiskMember_label_en-US" xlink:label="lab_ck0001540305_ManagementRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Management Risk Member</link:label>
    <link:label id="lab_ck0001540305_ManagementRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ManagementRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Management Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ManagementRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ManagementRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ManagementRiskMember" xlink:to="lab_ck0001540305_ManagementRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S&amp;P SmallCap 600 Value Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S&amp;P SmallCap 600 Value Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001540305_SandPSmallCap600ValueTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ForeignInvestmentRiskMember_label_en-US" xlink:label="lab_ck0001540305_ForeignInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Investment Risk Member</link:label>
    <link:label id="lab_ck0001540305_ForeignInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ForeignInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Foreign Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ForeignInvestmentRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ForeignInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ForeignInvestmentRiskMember" xlink:to="lab_ck0001540305_ForeignInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000071790Member_label_en-US" xlink:label="lab_ck0001540305_S000071790Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus International Enhanced Yield ETF</link:label>
    <link:label id="lab_ck0001540305_S000071790Member_documentation_en-US" xlink:label="lab_ck0001540305_S000071790Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series S000071790 Aptus International Enhanced Yield ETF C000227294 IDUB</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000071790Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000071790Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000071790Member" xlink:to="lab_ck0001540305_S000071790Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001540305_BloombergUSAggregateBondIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000088186Member_label_en-US" xlink:label="lab_ck0001540305_S000088186Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Deferred Income ETF</link:label>
    <link:label id="lab_ck0001540305_S000088186Member_documentation_en-US" xlink:label="lab_ck0001540305_S000088186Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000088186 Aptus Deferred Income ETF C000254244 Aptus Deferred Income ETF DEFR</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000088186Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000088186Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000088186Member" xlink:to="lab_ck0001540305_S000088186Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskIndustrialsSectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskIndustrialsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Industrials Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskIndustrialsSectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskIndustrialsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Industrials Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskIndustrialsSectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskIndustrialsSectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskIndustrialsSectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskIndustrialsSectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_EquityMarketRiskMember_label_en-US" xlink:label="lab_ck0001540305_EquityMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Market Risk Member</link:label>
    <link:label id="lab_ck0001540305_EquityMarketRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_EquityMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity Market Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_EquityMarketRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_EquityMarketRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_EquityMarketRiskMember" xlink:to="lab_ck0001540305_EquityMarketRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GeopoliticalRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeopoliticalRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geopolitical Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeopoliticalRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeopoliticalRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geopolitical Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeopoliticalRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_GeopoliticalRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeopoliticalRiskMember" xlink:to="lab_ck0001540305_GeopoliticalRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:to="lab_ck0001540305_ETFRisksAuthorizedParticipantsAPsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000088187Member_label_en-US" xlink:label="lab_ck0001540305_S000088187Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Upside ETF</link:label>
    <link:label id="lab_ck0001540305_S000088187Member_documentation_en-US" xlink:label="lab_ck0001540305_S000088187Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000088187 Aptus Large Cap Upside ETF C000254245 Aptus Large Cap Upside ETF UPSD</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000088187Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000088187Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000088187Member" xlink:to="lab_ck0001540305_S000088187Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_EmergingMarketsRiskMember_label_en-US" xlink:label="lab_ck0001540305_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:label id="lab_ck0001540305_EmergingMarketsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_EmergingMarketsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_EmergingMarketsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_EmergingMarketsRiskMember" xlink:to="lab_ck0001540305_EmergingMarketsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CashTransactionRiskMember_label_en-US" xlink:label="lab_ck0001540305_CashTransactionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Transaction Risk Member</link:label>
    <link:label id="lab_ck0001540305_CashTransactionRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CashTransactionRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Transaction Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CashTransactionRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CashTransactionRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CashTransactionRiskMember" xlink:to="lab_ck0001540305_CashTransactionRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SmallCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_SmallCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_SmallCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SmallCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SmallCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SmallCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SmallCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_SmallCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksTradingRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksTradingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksTradingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksTradingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksTradingRiskMember" xlink:to="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Credit Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Credit Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskCreditRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Correlation Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Correlation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_TaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_TaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_TaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_TaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_TaxRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_TaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_TaxRiskMember" xlink:to="lab_ck0001540305_TaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000085062Member_label_en-US" xlink:label="lab_ck0001540305_S000085062Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus July Buffer ETF</link:label>
    <link:label id="lab_ck0001540305_S000085062Member_documentation_en-US" xlink:label="lab_ck0001540305_S000085062Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085062 Aptus July Buffer ETF C000249925 Aptus July Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000085062Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000085062Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000085062Member" xlink:to="lab_ck0001540305_S000085062Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember" xlink:to="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesOfTheFundRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SPYRiskMember_label_en-US" xlink:label="lab_ck0001540305_SPYRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SPY Risk Member</link:label>
    <link:label id="lab_ck0001540305_SPYRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SPYRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SPY Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SPYRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SPYRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SPYRiskMember" xlink:to="lab_ck0001540305_SPYRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000272630Member_label_en-US" xlink:label="lab_ck0001540305_C000272630Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Laddered Buffer ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000272630Member_documentation_en-US" xlink:label="lab_ck0001540305_C000272630Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000102168 Aptus Laddered Buffer ETF C000272630 Aptus Laddered Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000272630Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000272630Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000272630Member" xlink:to="lab_ck0001540305_C000272630Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000102168Member_label_en-US" xlink:label="lab_ck0001540305_S000102168Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Laddered Buffer ETF</link:label>
    <link:label id="lab_ck0001540305_S000102168Member_documentation_en-US" xlink:label="lab_ck0001540305_S000102168Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000102168 Aptus Laddered Buffer ETF C000272630 Aptus Laddered Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000102168Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000102168Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000102168Member" xlink:to="lab_ck0001540305_S000102168Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SpecialTaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_SpecialTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_SpecialTaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SpecialTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SpecialTaxRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SpecialTaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SpecialTaxRiskMember" xlink:to="lab_ck0001540305_SpecialTaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_InvestmentCompanyRiskMember_label_en-US" xlink:label="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company Risk Member</link:label>
    <link:label id="lab_ck0001540305_InvestmentCompanyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_InvestmentCompanyRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_InvestmentCompanyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_InvestmentCompanyRiskMember" xlink:to="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskFinancialsSectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskFinancialsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Financials Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskFinancialsSectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskFinancialsSectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Financials Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskFinancialsSectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskFinancialsSectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskFinancialsSectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskFinancialsSectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Mid-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk, Mid-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_MarketCapitalizationRiskMidCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_VolatilityInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_VolatilityInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Volatility Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_VolatilityInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_VolatilityInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Volatility Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_VolatilityInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_VolatilityInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_VolatilityInvestingRiskMember" xlink:to="lab_ck0001540305_VolatilityInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Event Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Event Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskEventRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeographicInvestmentRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_GeographicInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeographicInvestmentRiskMember" xlink:to="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FLEXOptionsLiquidityRiskMember_label_en-US" xlink:label="lab_ck0001540305_FLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FLEX Options Liquidity Risk Member</link:label>
    <link:label id="lab_ck0001540305_FLEXOptionsLiquidityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FLEX Options Liquidity Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FLEXOptionsLiquidityRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FLEXOptionsLiquidityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FLEXOptionsLiquidityRiskMember" xlink:to="lab_ck0001540305_FLEXOptionsLiquidityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000213139Member_label_en-US" xlink:label="lab_ck0001540305_C000213139Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Collared Investment Opportunity ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000213139Member_documentation_en-US" xlink:label="lab_ck0001540305_C000213139Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Collared Investment Opportunity ETF Class, C000213139, ACIO</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000213139Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000213139Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000213139Member" xlink:to="lab_ck0001540305_C000213139Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000249924Member_label_en-US" xlink:label="lab_ck0001540305_C000249924Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus April Buffer ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000249924Member_documentation_en-US" xlink:label="lab_ck0001540305_C000249924Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085061 Aptus April Buffer ETF C000249924 Aptus April Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000249924Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000249924Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000249924Member" xlink:to="lab_ck0001540305_C000249924Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000203050Member_label_en-US" xlink:label="lab_ck0001540305_C000203050Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Defined Risk ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000203050Member_documentation_en-US" xlink:label="lab_ck0001540305_C000203050Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Defined Risk ETF Class, C000203050, DRSK</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000203050Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000203050Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000203050Member" xlink:to="lab_ck0001540305_C000203050Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000062593Member_label_en-US" xlink:label="lab_ck0001540305_S000062593Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Defined Risk ETF</link:label>
    <link:label id="lab_ck0001540305_S000062593Member_documentation_en-US" xlink:label="lab_ck0001540305_S000062593Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Defined Risk ETF, S000062593</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000062593Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000062593Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000062593Member" xlink:to="lab_ck0001540305_S000062593Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksCashRedemptionRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Cash Redemption Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksCashRedemptionRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Cash Redemption Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_ETFRisksCashRedemptionRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:to="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CollaredOptionsStrategyRiskMember_label_en-US" xlink:label="lab_ck0001540305_CollaredOptionsStrategyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collared Options Strategy Risk Member</link:label>
    <link:label id="lab_ck0001540305_CollaredOptionsStrategyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CollaredOptionsStrategyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Collared Options Strategy Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CollaredOptionsStrategyRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CollaredOptionsStrategyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CollaredOptionsStrategyRiskMember" xlink:to="lab_ck0001540305_CollaredOptionsStrategyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketCapitalizationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketCapitalizationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Capitalization Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketCapitalizationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketCapitalizationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketCapitalizationRiskMember" xlink:to="lab_ck0001540305_MarketCapitalizationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_InvestmentPeriodRiskMember_label_en-US" xlink:label="lab_ck0001540305_InvestmentPeriodRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Period Risk Member</link:label>
    <link:label id="lab_ck0001540305_InvestmentPeriodRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_InvestmentPeriodRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Period Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_InvestmentPeriodRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_InvestmentPeriodRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_InvestmentPeriodRiskMember" xlink:to="lab_ck0001540305_InvestmentPeriodRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mortgage- And Asset-Backed Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Mortgage- And Asset-Backed Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember" xlink:to="lab_ck0001540305_MortgageAndAssetBackedSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_OtherInvestmentCompaniesRiskMember_label_en-US" xlink:label="lab_ck0001540305_OtherInvestmentCompaniesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Investment Companies Risk Member</link:label>
    <link:label id="lab_ck0001540305_OtherInvestmentCompaniesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_OtherInvestmentCompaniesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Investment Companies Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_OtherInvestmentCompaniesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_OtherInvestmentCompaniesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_OtherInvestmentCompaniesRiskMember" xlink:to="lab_ck0001540305_OtherInvestmentCompaniesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000062252Member_label_en-US" xlink:label="lab_ck0001540305_S000062252Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Opus Small Cap Value ETF</link:label>
    <link:label id="lab_ck0001540305_S000062252Member_documentation_en-US" xlink:label="lab_ck0001540305_S000062252Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Opus Small Cap Value ETF, S000062252</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000062252Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000062252Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000062252Member" xlink:to="lab_ck0001540305_S000062252Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000201593Member_label_en-US" xlink:label="lab_ck0001540305_C000201593Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Opus Small Cap Value ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000201593Member_documentation_en-US" xlink:label="lab_ck0001540305_C000201593Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Opus Small Cap Value ETF Class, C000201593, OSCV</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000201593Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000201593Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000201593Member" xlink:to="lab_ck0001540305_C000201593Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_LargeCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Large-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_LargeCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Large-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_LargeCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_HighPortfolioTurnoverRiskMember_label_en-US" xlink:label="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">High Portfolio Turnover Risk Member</link:label>
    <link:label id="lab_ck0001540305_HighPortfolioTurnoverRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">High Portfolio Turnover Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_HighPortfolioTurnoverRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:to="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFuturesContractsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFuturesContractsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Futures Contracts Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFuturesContractsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFuturesContractsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Futures Contracts Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFuturesContractsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskFuturesContractsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFuturesContractsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFuturesContractsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_UnderlyingETFRiskMember_label_en-US" xlink:label="lab_ck0001540305_UnderlyingETFRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Underlying ETF Risk Member</link:label>
    <link:label id="lab_ck0001540305_UnderlyingETFRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_UnderlyingETFRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Underlying ETF Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_UnderlyingETFRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_UnderlyingETFRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_UnderlyingETFRiskMember" xlink:to="lab_ck0001540305_UnderlyingETFRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FLEXOptionsCorrelationRiskMember_label_en-US" xlink:label="lab_ck0001540305_FLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FLEX Options Correlation Risk Member</link:label>
    <link:label id="lab_ck0001540305_FLEXOptionsCorrelationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FLEX Options Correlation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FLEXOptionsCorrelationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FLEXOptionsCorrelationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FLEXOptionsCorrelationRiskMember" xlink:to="lab_ck0001540305_FLEXOptionsCorrelationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_BufferedLossRiskMember_label_en-US" xlink:label="lab_ck0001540305_BufferedLossRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Buffered Loss Risk Member</link:label>
    <link:label id="lab_ck0001540305_BufferedLossRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_BufferedLossRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Buffered Loss Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_BufferedLossRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_BufferedLossRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_BufferedLossRiskMember" xlink:to="lab_ck0001540305_BufferedLossRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_MarketRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketRiskMember" xlink:to="lab_ck0001540305_MarketRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskTechnologySectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Technology Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskTechnologySectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Technology Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskTechnologySectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskTechnologySectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskTechnologySectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskTechnologySectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Controls And Sanctions Risk Member</link:label>
    <link:label id="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital Controls And Sanctions Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CapitalControlsAndSanctionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:to="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000254245Member_label_en-US" xlink:label="lab_ck0001540305_C000254245Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Large Cap Upside ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000254245Member_documentation_en-US" xlink:label="lab_ck0001540305_C000254245Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000088187 Aptus Large Cap Upside ETF C000254245 Aptus Large Cap Upside ETF UPSD</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000254245Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000254245Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000254245Member" xlink:to="lab_ck0001540305_C000254245Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember_label_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Call Risk Member</link:label>
    <link:label id="lab_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fixed Income Securities Risk, Call Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember" xlink:to="lab_ck0001540305_FixedIncomeSecuritiesRiskCallRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000249925Member_label_en-US" xlink:label="lab_ck0001540305_C000249925Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus July Buffer ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000249925Member_documentation_en-US" xlink:label="lab_ck0001540305_C000249925Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085062 Aptus July Buffer ETF C000249925 Aptus July Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000249925Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000249925Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000249925Member" xlink:to="lab_ck0001540305_C000249925Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_U.S.TreasurySecurityRiskMember_label_en-US" xlink:label="lab_ck0001540305_U.S.TreasurySecurityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">U.S. Treasury Security Risk Member</link:label>
    <link:label id="lab_ck0001540305_U.S.TreasurySecurityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_U.S.TreasurySecurityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">U.S. Treasury Security Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_U.S.TreasurySecurityRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_U.S.TreasurySecurityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_U.S.TreasurySecurityRiskMember" xlink:to="lab_ck0001540305_U.S.TreasurySecurityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CappedUpsideRiskMember_label_en-US" xlink:label="lab_ck0001540305_CappedUpsideRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capped Upside Risk Member</link:label>
    <link:label id="lab_ck0001540305_CappedUpsideRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CappedUpsideRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capped Upside Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CappedUpsideRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_CappedUpsideRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CappedUpsideRiskMember" xlink:to="lab_ck0001540305_CappedUpsideRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GovernmentObligationsRiskMember_label_en-US" xlink:label="lab_ck0001540305_GovernmentObligationsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Government Obligations Risk Member</link:label>
    <link:label id="lab_ck0001540305_GovernmentObligationsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GovernmentObligationsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Government Obligations Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GovernmentObligationsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_GovernmentObligationsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GovernmentObligationsRiskMember" xlink:to="lab_ck0001540305_GovernmentObligationsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_IPORiskMember_label_en-US" xlink:label="lab_ck0001540305_IPORiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IPO Risk Member</link:label>
    <link:label id="lab_ck0001540305_IPORiskMember_documentation_en-US" xlink:label="lab_ck0001540305_IPORiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IPO Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_IPORiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_IPORiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_IPORiskMember" xlink:to="lab_ck0001540305_IPORiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000238324Member_label_en-US" xlink:label="lab_ck0001540305_C000238324Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Enhanced Yield ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000238324Member_documentation_en-US" xlink:label="lab_ck0001540305_C000238324Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000077779 Aptus Enhanced Yield ETF C000238324 Aptus Enhanced Yield ETF JUCY</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000238324Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_C000238324Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000238324Member" xlink:to="lab_ck0001540305_C000238324Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_UnderlyingETFExposureRiskMember_label_en-US" xlink:label="lab_ck0001540305_UnderlyingETFExposureRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Underlying ETF Exposure Risk Member</link:label>
    <link:label id="lab_ck0001540305_UnderlyingETFExposureRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_UnderlyingETFExposureRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Underlying ETF Exposure Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_UnderlyingETFExposureRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_UnderlyingETFExposureRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_UnderlyingETFExposureRiskMember" xlink:to="lab_ck0001540305_UnderlyingETFExposureRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Valuation Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Valuation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFLEXOptionsValuationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskInformationTechnologySectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskInformationTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk, Information Technology Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskInformationTechnologySectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskInformationTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk, Information Technology Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskInformationTechnologySectorRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_SectorRiskInformationTechnologySectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskInformationTechnologySectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskInformationTechnologySectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000085063Member_label_en-US" xlink:label="lab_ck0001540305_S000085063Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus October Buffer ETF</link:label>
    <link:label id="lab_ck0001540305_S000085063Member_documentation_en-US" xlink:label="lab_ck0001540305_S000085063Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000085063 Aptus October Buffer ETF C000249926 Aptus October Buffer ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000085063Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000085063Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000085063Member" xlink:to="lab_ck0001540305_S000085063Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000254244Member_label_en-US" xlink:label="lab_ck0001540305_C000254244Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aptus Deferred Income ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000254244Member_documentation_en-US" xlink:label="lab_ck0001540305_C000254244Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000088186 Aptus Deferred Income ETF C000254244 Aptus Deferred Income ETF DEFR</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000254244Member" xlink:to="lab_ck0001540305_C000254244Member" xlink:type="arc" order="1"/>
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    <link:label id="lab_ck0001540305_C000170004Member_documentation_en-US" xlink:label="lab_ck0001540305_C000170004Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Drawdown Managed Equity ETF Class, C000170004, ADME</link:label>
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    <link:label id="lab_ck0001540305_S000054088Member_documentation_en-US" xlink:label="lab_ck0001540305_S000054088Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Drawdown Managed Equity ETF, S000054088</link:label>
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    <link:label id="lab_ck0001540305_AffiliatedFundRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_AffiliatedFundRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Affiliated Fund Risk Member</link:label>
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    <link:label id="lab_ck0001540305_DerivativesRiskSwapRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskSwapRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Swap Risk Member</link:label>
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    <link:label id="lab_ck0001540305_C000227294Member_documentation_en-US" xlink:label="lab_ck0001540305_C000227294Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series S000071790 Aptus International Enhanced Yield ETF C000227294 IDUB</link:label>
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    <link:label id="lab_ck0001540305_S000065985Member_documentation_en-US" xlink:label="lab_ck0001540305_S000065985Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aptus Collared Investment Opportunity ETF, S000065985 Series</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000065985Member" xlink:href="ck0001540305-20260826.xsd#ck0001540305_S000065985Member"/>
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    <link:label id="lab_ck0001540305_FundOfDefinedOutcomeFundsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_FundOfDefinedOutcomeFundsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fund-Of-Defined Outcome Funds Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_FundOfDefinedOutcomeFundsRiskMember" xlink:href="ck0001540305-20260826.xsd#ck0001540305_FundOfDefinedOutcomeFundsRiskMember"/>
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