<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.3a -->
    <!-- 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/2024q3/oef-2024q3.xsd#HoldingsByIndustrySector" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByIndustrySector" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByGeographicRegion" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByGeographicRegion" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByCreditQuality" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByCreditQuality" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByMaturity" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByMaturity" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByAssetCategory" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByAssetCategory" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByOtherCategory" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByOtherCategory" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingsByOtherCategory2" roleURI="http://xbrl.sec.gov/oef/role/HoldingsByOtherCategory2" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#LargestHoldings" roleURI="http://xbrl.sec.gov/oef/role/LargestHoldings" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#ProspectusOnly" roleURI="http://xbrl.sec.gov/rr/role/ProspectusOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#RiskOnly" roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#SeriesOnly" roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#ClassOnly" roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#PerformanceMeasureOnly" roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingAssetCategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/HoldingAssetCategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#BroadBasedIndexOnly" roleURI="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#AdditionalIndexOnly" roleURI="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#IndustrySectorOnly" roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#GeographicRegionOnly" roleURI="http://xbrl.sec.gov/oef/role/GeographicRegionOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#CreditQualityOnly" roleURI="http://xbrl.sec.gov/oef/role/CreditQualityOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#MaturityOnly" roleURI="http://xbrl.sec.gov/oef/role/MaturityOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#Other1CategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/Other1CategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#Other2CategoryOnly" roleURI="http://xbrl.sec.gov/oef/role/Other2CategoryOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#LargestHoldingOnly" roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#SalesLoadOnly" roleURI="http://xbrl.sec.gov/oef/role/SalesLoadOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#HoldingMeasureOnly" roleURI="http://xbrl.sec.gov/oef/role/HoldingMeasureOnly" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#ValueMeasureOnly" roleURI="http://xbrl.sec.gov/oef/role/ValueMeasureOnly" />
    <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:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly" />
    <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/2024q3/oef-2024q3.xsd#oef_ShareClassDomain" xlink:label="loc_oefShareClassDomain" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_C000186849Member" xlink:label="loc_upupxC000186849Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_upupxC000186849Member" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_C000186850Member" xlink:label="loc_upupxC000186850Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_upupxC000186850Member" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_C0001868450Member" xlink:label="loc_upupxC0001868450Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_upupxC0001868450Member" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_C000013262Member" xlink:label="loc_upupxC000013262Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefShareClassDomain" xlink:to="loc_upupxC000013262Member" xlink:type="arc" order="30" />
    </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:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#oef_IndustrySectorDomain" xlink:label="loc_oefIndustrySectorDomain" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_DrugManufacturersMember" xlink:label="loc_upupxDrugManufacturersMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxDrugManufacturersMember" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_ElectricalEquipmentPartsMember" xlink:label="loc_upupxElectricalEquipmentPartsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxElectricalEquipmentPartsMember" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ExchangeTradedFundsMember" xlink:label="loc_us-gaapExchangeTradedFundsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_us-gaapExchangeTradedFundsMember" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_IntegratedCircuitDesignMember" xlink:label="loc_upupxIntegratedCircuitDesignMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxIntegratedCircuitDesignMember" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_InternetContentInfoMember" xlink:label="loc_upupxInternetContentInfoMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxInternetContentInfoMember" xlink:type="arc" order="40" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_us-gaapMoneyMarketFundsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_us-gaapMoneyMarketFundsMember" xlink:type="arc" order="50" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_SemiconductorsMember" xlink:label="loc_upupxSemiconductorsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxSemiconductorsMember" xlink:type="arc" order="60" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_BanksDiversifiedMember" xlink:label="loc_upupxBanksDiversifiedMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxBanksDiversifiedMember" xlink:type="arc" order="70" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_CapitalMarketsMember" xlink:label="loc_upupxCapitalMarketsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxCapitalMarketsMember" xlink:type="arc" order="80" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_ConsumerElectronicsMember" xlink:label="loc_upupxConsumerElectronicsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxConsumerElectronicsMember" xlink:type="arc" order="90" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EntertainmentMember" xlink:label="loc_us-gaapEntertainmentMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_us-gaapEntertainmentMember" xlink:type="arc" order="100" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_HealthInformationMember" xlink:label="loc_upupxHealthInformationMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxHealthInformationMember" xlink:type="arc" order="110" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_HealthcarePlansMember" xlink:label="loc_upupxHealthcarePlansMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxHealthcarePlansMember" xlink:type="arc" order="120" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_LuxuryGoodsMember" xlink:label="loc_upupxLuxuryGoodsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxLuxuryGoodsMember" xlink:type="arc" order="130" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OilAndGasMember" xlink:label="loc_us-gaapOilAndGasMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_us-gaapOilAndGasMember" xlink:type="arc" order="140" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_SpecialtyIndustrialMachineryMember" xlink:label="loc_upupxSpecialtyIndustrialMachineryMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxSpecialtyIndustrialMachineryMember" xlink:type="arc" order="150" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_UtilitiesRenewableMember" xlink:label="loc_upupxUtilitiesRenewableMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxUtilitiesRenewableMember" xlink:type="arc" order="160" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_AgriculturalInputsMember" xlink:label="loc_upupxAgriculturalInputsMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxAgriculturalInputsMember" xlink:type="arc" order="170" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_LifeInsuranceMember" xlink:label="loc_upupxLifeInsuranceMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxLifeInsuranceMember" xlink:type="arc" order="180" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_InternetRetailMember" xlink:label="loc_upupxInternetRetailMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefIndustrySectorDomain" xlink:to="loc_upupxInternetRetailMember" xlink:type="arc" order="190" />
    </link:definitionLink>
    <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:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2024q3/oef-2024q3.xsd#oef_LargestHoldingsDomain" xlink:label="loc_oefLargestHoldingsDomain" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_FidelityInstMMTreasPortMember" xlink:label="loc_upupxFidelityInstMMTreasPortMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxFidelityInstMMTreasPortMember" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_TaiwanSemiconductorMember" xlink:label="loc_upupxTaiwanSemiconductorMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxTaiwanSemiconductorMember" xlink:type="arc" order="10" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_HimaxTechnologiesMember" xlink:label="loc_upupxHimaxTechnologiesMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxHimaxTechnologiesMember" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_DirexionDailySP500Member" xlink:label="loc_upupxDirexionDailySP500Member" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxDirexionDailySP500Member" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_DirexionDailyDowJonesMember" xlink:label="loc_upupxDirexionDailyDowJonesMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxDirexionDailyDowJonesMember" xlink:type="arc" order="40" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_ProSharesUltraQQQMember" xlink:label="loc_upupxProSharesUltraQQQMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxProSharesUltraQQQMember" xlink:type="arc" order="50" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_DirexionFinancialMember" xlink:label="loc_upupxDirexionFinancialMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxDirexionFinancialMember" xlink:type="arc" order="60" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_DirexionSmallCapMember" xlink:label="loc_upupxDirexionSmallCapMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxDirexionSmallCapMember" xlink:type="arc" order="70" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_AbbVieIncMember" xlink:label="loc_upupxAbbVieIncMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxAbbVieIncMember" xlink:type="arc" order="80" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_AseTechnologyHoldingCoMember" xlink:label="loc_upupxAseTechnologyHoldingCoMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxAseTechnologyHoldingCoMember" xlink:type="arc" order="90" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_NvidiaCorpMember" xlink:label="loc_upupxNvidiaCorpMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxNvidiaCorpMember" xlink:type="arc" order="100" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_TapestryIncMember" xlink:label="loc_upupxTapestryIncMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxTapestryIncMember" xlink:type="arc" order="110" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_TevaPhamaceuticalMember" xlink:label="loc_upupxTevaPhamaceuticalMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxTevaPhamaceuticalMember" xlink:type="arc" order="120" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_GoldmanSachsGroupMember" xlink:label="loc_upupxGoldmanSachsGroupMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxGoldmanSachsGroupMember" xlink:type="arc" order="130" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_MorganStanleyMember" xlink:label="loc_upupxMorganStanleyMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxMorganStanleyMember" xlink:type="arc" order="140" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_AppleIncMember" xlink:label="loc_upupxAppleIncMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxAppleIncMember" xlink:type="arc" order="150" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_AlphabetIncMember" xlink:label="loc_upupxAlphabetIncMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxAlphabetIncMember" xlink:type="arc" order="160" />
      <link:loc xlink:type="locator" xlink:href="upupx-20260331.xsd#upupx_IShares20YrTreasMember" xlink:label="loc_upupxIShares20YrTreasMember" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oefLargestHoldingsDomain" xlink:to="loc_upupxIShares20YrTreasMember" xlink:type="arc" order="170" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SalesLoadOnly" />
</link:linkbase>
