<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Tue Aug 18 19:16:22 UTC 2026 -->
<xs:schema xmlns:ea00030203601="http://www.imst3.com/20251031" elementFormDefault="qualified" targetNamespace="http://www.imst3.com/20251031" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:us-types="http://xbrl.us/us-types/2009-01-31" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:dtr="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="ea00030203601-20251031_lab.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef"/>
      <link:linkbaseRef xlink:type="simple" xlink:href="ea00030203601-20251031_pre.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef"/>
      <link:linkbaseRef xlink:type="simple" xlink:href="ea00030203601-20251031_def.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef"/>
    </xs:appinfo>
  </xs:annotation>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/oef/2025" schemaLocation="https://xbrl.sec.gov/oef/2025/oef-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/oef-rr/2025" schemaLocation="https://xbrl.sec.gov/oef/2025/oef-rr-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/fnd-oef/2025" schemaLocation="https://xbrl.sec.gov/fnd/2025/fnd-oef-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:element name="S000102279Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_S000102279Member"/>
  <xs:element name="S000102280Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_S000102280Member"/>
  <xs:element name="S000102278Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_S000102278Member"/>
  <xs:element name="S000102281Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_S000102281Member"/>
  <xs:element name="C000272748Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_C000272748Member"/>
  <xs:element name="C000272749Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_C000272749Member"/>
  <xs:element name="C000272747Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_C000272747Member"/>
  <xs:element name="C000272750Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_C000272750Member"/>
  <xs:element name="MergerAndOtherArbitrageTransactionsRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_MergerAndOtherArbitrageTransactionsRiskMember"/>
  <xs:element name="ShortSalesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ShortSalesRiskMember"/>
  <xs:element name="CryptoAssetRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CryptoAssetRiskMember"/>
  <xs:element name="EquityRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_EquityRiskMember"/>
  <xs:element name="FixedIncomeSecuritiesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_FixedIncomeSecuritiesRiskMember"/>
  <xs:element name="CreditRisksMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CreditRisksMember"/>
  <xs:element name="InterestRateRisksMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_InterestRateRisksMember"/>
  <xs:element name="HighYieldJunkBondRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_HighYieldJunkBondRiskMember"/>
  <xs:element name="ClosedEndFundsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ClosedEndFundsMember"/>
  <xs:element name="WarrantsAndRightsRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_WarrantsAndRightsRiskMember"/>
  <xs:element name="DerivativesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_DerivativesRiskMember"/>
  <xs:element name="FuturesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_FuturesRiskMember"/>
  <xs:element name="SwapsRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_SwapsRiskMember"/>
  <xs:element name="OptionsRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_OptionsRiskMember"/>
  <xs:element name="ForwardsRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ForwardsRiskMember"/>
  <xs:element name="SpeculativeExposureRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_SpeculativeExposureRiskMember"/>
  <xs:element name="CommodityExposureRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CommodityExposureRiskMember"/>
  <xs:element name="LeveragingRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_LeveragingRiskMember"/>
  <xs:element name="LiquidityRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_LiquidityRiskMember"/>
  <xs:element name="PreferredStockRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_PreferredStockRiskMember"/>
  <xs:element name="ConvertibleSecuritiesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ConvertibleSecuritiesRiskMember"/>
  <xs:element name="RealEstateInvestmentTrustREITRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_RealEstateInvestmentTrustREITRiskMember"/>
  <xs:element name="ForeignInvestmentRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ForeignInvestmentRiskMember"/>
  <xs:element name="CurrencyRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CurrencyRiskMember"/>
  <xs:element name="IPORiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_IPORiskMember"/>
  <xs:element name="LackOfCorrelationRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_LackOfCorrelationRiskMember"/>
  <xs:element name="LendingPortfolioSecuritiesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_LendingPortfolioSecuritiesRiskMember"/>
  <xs:element name="MarketCapitalizationRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_MarketCapitalizationRiskMember"/>
  <xs:element name="CounterpartyRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CounterpartyRiskMember"/>
  <xs:element name="NonDiversificationRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_NonDiversificationRiskMember"/>
  <xs:element name="MarketRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_MarketRiskMember"/>
  <xs:element name="RepurchaseAgreementRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_RepurchaseAgreementRiskMember"/>
  <xs:element name="ETFStructureRisksMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ETFStructureRisksMember"/>
  <xs:element name="ActiveManagementRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ActiveManagementRiskMember"/>
  <xs:element name="OperationalRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_OperationalRiskMember"/>
  <xs:element name="ValuationRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ValuationRiskMember"/>
  <xs:element name="SubsidiaryRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_SubsidiaryRiskMember"/>
  <xs:element name="PortfolioTurnoverRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_PortfolioTurnoverRiskMember"/>
  <xs:element name="TaxRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_TaxRiskMember"/>
  <xs:element name="GovernmentSponsoredEntitiesRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_GovernmentSponsoredEntitiesRiskMember"/>
  <xs:element name="ForeignSovereignRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_ForeignSovereignRiskMember"/>
  <xs:element name="NewFundRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_NewFundRiskMember"/>
  <xs:element name="RecentMarketEventsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_RecentMarketEventsMember"/>
  <xs:element name="CybersecurityRiskMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_CybersecurityRiskMember"/>
  <xs:element name="index_Bloomberg_Global_Aggregate_Bond_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_index_Bloomberg_Global_Aggregate_Bond_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember"/>
<!-- [WMV7][WvAJP40WNC6Pn1ZP0rlcsmyuY2jQra81snV5/kh+LicL6j9eOQPyj5gZxmtoOGlOb/G7Xq87tdmLP3KArYXumYkAykvg7pWEbyiV38127sPmvqIiVeKJc6A++AnBUqsHxM7rncUnHvTfg4KZLVWyoFhlf5/KsVe0beKOlAVs+aM/P0enXZxAmtlfeT4xRRjusmq8a9j6LVOs1+bxaXoZ7Spz1DwnOtM65e1zI94F27IuHXpf4aJs29m74dqY74cxzRDMYbbXfn8C41umoUdknQENI1M9dealVFLnpKvOHe4IPbuRCygLDmqNuSpDBo1nFF/Az6/QRuDA6OJECn6FH62br1f4/Y4G5SAR+cn+Ic4+EA/dsUeTEInWSH6XNHOryPcIGGK0Z6wxvoi1naCDFQ==] CSR-->
  <xs:element name="index_Credit_Suisse_Managed_Futures_Liquid_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ea00030203601_index_Credit_Suisse_Managed_Futures_Liquid_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember"/>
</xs:schema>
