<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.6a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByIndustrySector" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByIndustrySector" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByGeographicRegion" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByGeographicRegion" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByCreditQuality" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByCreditQuality" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByMaturity" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByMaturity" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByAssetCategory" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByAssetCategory" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByOtherCategory" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByOtherCategory" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingsByOtherCategory2" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByOtherCategory2" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#LargestHoldings" roleURI="http://xbrl.sec.gov/oef/role/LargestHoldings" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#ProspectusOnly" roleURI="http://xbrl.sec.gov/rr/role/ProspectusOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#RiskOnly" roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#CoregistrantOnly" roleURI="http://xbrl.sec.gov/oef/role/CoregistrantOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#SeriesOnly" roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#ClassOnly" roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#PerformanceMeasureOnly" roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingAssetCategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/HoldingAssetCategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#BroadBasedIndexOnly" roleURI="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#AdditionalIndexOnly" roleURI="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#IndustrySectorOnly" roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#GeographicRegionOnly" roleURI="http://xbrl.sec.gov/oef/role/GeographicRegionOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#CreditQualityOnly" roleURI="http://xbrl.sec.gov/oef/role/CreditQualityOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#MaturityOnly" roleURI="http://xbrl.sec.gov/oef/role/MaturityOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#Other1CategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/Other1CategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#Other2CategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/Other2CategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#LargestHoldingOnly" roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#SalesLoadOnly" roleURI="http://xbrl.sec.gov/oef/role/SalesLoadOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#HoldingMeasureOnly" roleURI="http://xbrl.sec.gov/oef/role/HoldingMeasureOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#ValueMeasureOnly" roleURI="http://xbrl.sec.gov/oef/role/ValueMeasureOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/fnd/2026q3/fnd-2026q3.xsd#PortfolioOnly" roleURI="http://xbrl.sec.gov/uit/role/PortfolioOnly" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll" arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/ProspectusOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AllRisksMember" xlink:label="loc_oefAllRisksMember" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ETFStructureRisksMember" xlink:label="loc_cik0000889284ETFStructureRisksMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ETFStructureRisksMember" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_BusinessDevelopmentCompanyRiskMember" xlink:label="loc_cik0000889284BusinessDevelopmentCompanyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284BusinessDevelopmentCompanyRiskMember" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ConcentrationRiskMember" xlink:label="loc_cik0000889284ConcentrationRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ConcentrationRiskMember" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_InvestmentCompanyRiskMember" xlink:label="loc_cik0000889284InvestmentCompanyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284InvestmentCompanyRiskMember" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_InvestmentRestrictionsRiskMember" xlink:label="loc_cik0000889284InvestmentRestrictionsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284InvestmentRestrictionsRiskMember" xlink:type="arc" order="40" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_IndustryOrSectorRiskMember" xlink:label="loc_cik0000889284IndustryOrSectorRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284IndustryOrSectorRiskMember" xlink:type="arc" order="50" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_FinancialsSectorRiskMember" xlink:label="loc_cik0000889284FinancialsSectorRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284FinancialsSectorRiskMember" xlink:type="arc" order="60" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_CounterpartyRiskMember" xlink:label="loc_cik0000889284CounterpartyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284CounterpartyRiskMember" xlink:type="arc" order="70" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_EstimatedMaturityRiskMember" xlink:label="loc_cik0000889284EstimatedMaturityRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284EstimatedMaturityRiskMember" xlink:type="arc" order="80" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_InterestRatesRiskMember" xlink:label="loc_cik0000889284InterestRatesRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284InterestRatesRiskMember" xlink:type="arc" order="90" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_CreditsRiskMember" xlink:label="loc_cik0000889284CreditsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284CreditsRiskMember" xlink:type="arc" order="100" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_IncomeRiskMember" xlink:label="loc_cik0000889284IncomeRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284IncomeRiskMember" xlink:type="arc" order="110" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_FixedIncomeMarketRiskMember" xlink:label="loc_cik0000889284FixedIncomeMarketRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284FixedIncomeMarketRiskMember" xlink:type="arc" order="120" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_HighYieldHighRiskDebtSecuritiesMember" xlink:label="loc_cik0000889284HighYieldHighRiskDebtSecuritiesMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284HighYieldHighRiskDebtSecuritiesMember" xlink:type="arc" order="130" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_DerivativesRiskMember" xlink:label="loc_cik0000889284DerivativesRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284DerivativesRiskMember" xlink:type="arc" order="140" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_LiquidityRiskMember" xlink:label="loc_cik0000889284LiquidityRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284LiquidityRiskMember" xlink:type="arc" order="150" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_PrepaymentCallRiskMember" xlink:label="loc_cik0000889284PrepaymentCallRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284PrepaymentCallRiskMember" xlink:type="arc" order="160" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_OptionsRiskMember" xlink:label="loc_cik0000889284OptionsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284OptionsRiskMember" xlink:type="arc" order="170" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ValuationRiskMember" xlink:label="loc_cik0000889284ValuationRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ValuationRiskMember" xlink:type="arc" order="180" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_SwapRiskMember" xlink:label="loc_cik0000889284SwapRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284SwapRiskMember" xlink:type="arc" order="190" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_CreditDefaultSwapsRiskMember" xlink:label="loc_cik0000889284CreditDefaultSwapsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284CreditDefaultSwapsRiskMember" xlink:type="arc" order="200" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_MarketRiskMember" xlink:label="loc_cik0000889284MarketRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284MarketRiskMember" xlink:type="arc" order="210" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_InvestmentStyleRiskMember" xlink:label="loc_cik0000889284InvestmentStyleRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284InvestmentStyleRiskMember" xlink:type="arc" order="220" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_DividendRiskMember" xlink:label="loc_cik0000889284DividendRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284DividendRiskMember" xlink:type="arc" order="230" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_CompanySpecificRiskMember" xlink:label="loc_cik0000889284CompanySpecificRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284CompanySpecificRiskMember" xlink:type="arc" order="240" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_MidCapitalizationCompanyRiskMember" xlink:label="loc_cik0000889284MidCapitalizationCompanyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284MidCapitalizationCompanyRiskMember" xlink:type="arc" order="250" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_SmallCapitalizationCompanyRiskMember" xlink:label="loc_cik0000889284SmallCapitalizationCompanyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284SmallCapitalizationCompanyRiskMember" xlink:type="arc" order="260" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ActiveTradingRiskMember" xlink:label="loc_cik0000889284ActiveTradingRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ActiveTradingRiskMember" xlink:type="arc" order="270" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_OperationalAndTechnologyRiskMember" xlink:label="loc_cik0000889284OperationalAndTechnologyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284OperationalAndTechnologyRiskMember" xlink:type="arc" order="280" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_FocusedInvestmentRiskMember" xlink:label="loc_cik0000889284FocusedInvestmentRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284FocusedInvestmentRiskMember" xlink:type="arc" order="290" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ManagementRiskMember" xlink:label="loc_cik0000889284ManagementRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ManagementRiskMember" xlink:type="arc" order="300" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_NewFundRiskMember" xlink:label="loc_cik0000889284NewFundRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284NewFundRiskMember" xlink:type="arc" order="310" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ForeignInvestmentRiskMember" xlink:label="loc_cik0000889284ForeignInvestmentRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ForeignInvestmentRiskMember" xlink:type="arc" order="320" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ForeignCurrencyTransactionRiskMember" xlink:label="loc_cik0000889284ForeignCurrencyTransactionRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ForeignCurrencyTransactionRiskMember" xlink:type="arc" order="330" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ForwardForeignCurrencyContractsRiskMember" xlink:label="loc_cik0000889284ForwardForeignCurrencyContractsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ForwardForeignCurrencyContractsRiskMember" xlink:type="arc" order="340" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_FuturesContractsRiskMember" xlink:label="loc_cik0000889284FuturesContractsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284FuturesContractsRiskMember" xlink:type="arc" order="350" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_LargeCapitalizationCompanyRiskMember" xlink:label="loc_cik0000889284LargeCapitalizationCompanyRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284LargeCapitalizationCompanyRiskMember" xlink:type="arc" order="360" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_EtfRiskMember" xlink:label="loc_cik0000889284EtfRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284EtfRiskMember" xlink:type="arc" order="370" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_EmergingMarketsRiskMember" xlink:label="loc_cik0000889284EmergingMarketsRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284EmergingMarketsRiskMember" xlink:type="arc" order="380" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_DevelopedMarketRiskMember" xlink:label="loc_cik0000889284DevelopedMarketRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284DevelopedMarketRiskMember" xlink:type="arc" order="390" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_AiRiskMember" xlink:label="loc_cik0000889284AiRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284AiRiskMember" xlink:type="arc" order="400" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_TechnologySectorRiskMember" xlink:label="loc_cik0000889284TechnologySectorRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284TechnologySectorRiskMember" xlink:type="arc" order="410" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_QuantitativeModelRiskMember" xlink:label="loc_cik0000889284QuantitativeModelRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284QuantitativeModelRiskMember" xlink:type="arc" order="420" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_ArtificialIntelligenceRelatedCompaniesRiskMember" xlink:label="loc_cik0000889284ArtificialIntelligenceRelatedCompaniesRiskMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefAllRisksMember" xlink:to="loc_cik0000889284ArtificialIntelligenceRelatedCompaniesRiskMember" xlink:type="arc" order="430" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/CoregistrantOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain" xlink:label="loc_deiEntityDomain" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_S000111289Member" xlink:label="loc_cik0000889284S000111289Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_deiEntityDomain" xlink:to="loc_cik0000889284S000111289Member" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_S000111290Member" xlink:label="loc_cik0000889284S000111290Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_deiEntityDomain" xlink:to="loc_cik0000889284S000111290Member" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_S000111288Member" xlink:label="loc_cik0000889284S000111288Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_deiEntityDomain" xlink:to="loc_cik0000889284S000111288Member" xlink:type="arc" order="20" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain" xlink:label="loc_oefShareClassDomain" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_C000282573Member" xlink:label="loc_cik0000889284C000282573Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_cik0000889284C000282573Member" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_C000282574Member" xlink:label="loc_cik0000889284C000282574Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_cik0000889284C000282574Member" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="cik0000889284-20261111.xsd#cik0000889284_C000282572Member" xlink:label="loc_cik0000889284C000282572Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_cik0000889284C000282572Member" xlink:type="arc" order="20" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/HoldingAssetCategoryOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/GeographicRegionOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/CreditQualityOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/MaturityOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other1CategoryOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other2CategoryOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SalesLoadOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/HoldingMeasureOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ValueMeasureOnly" />
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/uit/role/PortfolioOnly" />
</link:linkbase>
