<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Wed Apr 29 17:22:54 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderFeesData" roleURI="http://xbrl.sec.gov/rr/role/ShareholderFeesData"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskReturn" roleURI="http://xbrl.sec.gov/rr/role/RiskReturn"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceManagement" roleURI="http://xbrl.sec.gov/rr/role/PerformanceManagement"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#InvestmentStrategy" roleURI="http://xbrl.sec.gov/rr/role/InvestmentStrategy"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#FeesAndExpenses" roleURI="http://xbrl.sec.gov/rr/role/FeesAndExpenses"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#InvestmentRisks" roleURI="http://xbrl.sec.gov/rr/role/InvestmentRisks"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#N1aSupplement" roleURI="http://xbrl.sec.gov/rr/role/N1aSupplement"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#OperatingExpensesData" roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ExpenseExample" roleURI="http://xbrl.sec.gov/rr/role/ExpenseExample"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ExpenseExampleNoRedemption" roleURI="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BarChartData" roleURI="http://xbrl.sec.gov/rr/role/BarChartData"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceTableData" roleURI="http://xbrl.sec.gov/rr/role/PerformanceTableData"/>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ShareholderFeesData" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="oef_ProspectusLineItems" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ProspectusLineItems"/>
    <loc xlink:type="locator" xlink:label="WireFee" xlink:href="ck0001318342-20251231.xsd#ck0001318342_WireFee"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ProspectusLineItems" xlink:to="WireFee" order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="OvernightCheckDeliveryFee" xlink:href="ck0001318342-20251231.xsd#ck0001318342_OvernightCheckDeliveryFee"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ProspectusLineItems" xlink:to="OvernightCheckDeliveryFee" order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="RetirementAccountFees" xlink:href="ck0001318342-20251231.xsd#ck0001318342_RetirementAccountFees"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ProspectusLineItems" xlink:to="RetirementAccountFees" order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/RiskReturn" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/PerformanceManagement" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/InvestmentStrategy" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/FeesAndExpenses" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/InvestmentRisks" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_RiskAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_RiskAxis"/>
    <loc xlink:type="locator" xlink:label="MarketRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_MarketRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="MarketRiskMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="RecentMarketEventsMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_RecentMarketEventsMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="RecentMarketEventsMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="FixedIncomeSecuritiesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_FixedIncomeSecuritiesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="FixedIncomeSecuritiesRiskMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ForeignInvestmentRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ForeignInvestmentRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ForeignInvestmentRiskMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="EmergingMarketsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_EmergingMarketsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="EmergingMarketsRiskMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="HighYieldMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_HighYieldMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="HighYieldMember" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="HighYieldJunkBondRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_HighYieldJunkBondRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="HighYieldJunkBondRiskMember" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="CEFsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_CEFsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="CEFsRiskMember" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="USTreasuryFuturesContractsHedgeRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_USTreasuryFuturesContractsHedgeRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="USTreasuryFuturesContractsHedgeRiskMember" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="SecuritizedProductsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_SecuritizedProductsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="SecuritizedProductsRiskMember" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestRateRiskMember" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRateRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="us-gaap_InterestRateRiskMember" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="BankLoanRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_BankLoanRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="BankLoanRiskMember" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ConvertibleSecuritiesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ConvertibleSecuritiesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ConvertibleSecuritiesRiskMember" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ForeignSovereignDebtRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ForeignSovereignDebtRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ForeignSovereignDebtRiskMember" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="CurrencyRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_CurrencyRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="CurrencyRiskMember" order="25.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="PrepaymentOrCallRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_PrepaymentOrCallRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="PrepaymentOrCallRiskMember" order="26.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ESGCriteriaRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ESGCriteriaRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ESGCriteriaRiskMember" order="27.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="InflationRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_InflationRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="InflationRiskMember" order="28.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="LiquidityRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_LiquidityRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="LiquidityRiskMember" order="29.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ValuationRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ValuationRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ValuationRiskMember" order="30.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="PortfolioTurnoverRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_PortfolioTurnoverRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="PortfolioTurnoverRiskMember" order="31.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CreditRiskMember" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="us-gaap_CreditRiskMember" order="32.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="RealEstateMarketRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_RealEstateMarketRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="RealEstateMarketRiskMember" order="33.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ManagementAndStrategyRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ManagementAndStrategyRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ManagementAndStrategyRiskMember" order="34.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="SectorRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_SectorRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="SectorRiskMember" order="35.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="NonDiversificationRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_NonDiversificationRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="NonDiversificationRiskMember" order="36.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="GovernmentSecuritiesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_GovernmentSecuritiesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="GovernmentSecuritiesRiskMember" order="37.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="CollateralizedLoanObligationsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_CollateralizedLoanObligationsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="CollateralizedLoanObligationsRiskMember" order="38.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="LeveragedLoanRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_LeveragedLoanRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="LeveragedLoanRiskMember" order="39.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ETFRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ETFRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ETFRiskMember" order="40.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="RepurchaseAgreementsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_RepurchaseAgreementsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="RepurchaseAgreementsRiskMember" order="41.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ReverseRepurchaseAgreementsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ReverseRepurchaseAgreementsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ReverseRepurchaseAgreementsRiskMember" order="42.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="LeveragingRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_LeveragingRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="LeveragingRiskMember" order="43.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="DerivativesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_DerivativesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="DerivativesRiskMember" order="44.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="MunicipalBondsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_MunicipalBondsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="MunicipalBondsRiskMember" order="45.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="EquityRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_EquityRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="EquityRiskMember" order="46.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="PreferredStockRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_PreferredStockRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="PreferredStockRiskMember" order="47.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="SPACsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_SPACsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="SPACsRiskMember" order="48.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ETFAndMutualFundRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ETFAndMutualFundRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ETFAndMutualFundRiskMember" order="49.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ETNRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ETNRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ETNRiskMember" order="50.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="TaxRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_TaxRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="TaxRiskMember" order="51.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="OptionsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_OptionsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="OptionsRiskMember" order="52.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="SwapsRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_SwapsRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="SwapsRiskMember" order="53.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="ShortSalesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_ShortSalesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="ShortSalesRiskMember" order="54.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="FuturesRiskMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_FuturesRiskMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_RiskAxis" xlink:to="FuturesRiskMember" order="55.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/N1aSupplement" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExample" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/BarChartData" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <loc xlink:type="locator" xlink:label="S000052270Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052270Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052270Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000084477Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000084477Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000084477Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000052274Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000052274Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000052274Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="S000046847Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_S000046847Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_LegalEntityAxis" xlink:to="S000046847Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
  <presentationLink xlink:role="http://xbrl.sec.gov/rr/role/PerformanceTableData" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="oef_ClassAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ClassAxis"/>
    <loc xlink:type="locator" xlink:label="C000164379Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164379Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164379Member" order="-11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164380Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164380Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164380Member" order="-10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164381Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164381Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164381Member" order="-9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248864Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248864Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248864Member" order="-8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248865Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248865Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248865Member" order="-7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000248863Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000248863Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000248863Member" order="-6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164392Member" order="-5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164393Member" order="-4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000164394Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000164394Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000164394Member" order="-3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146391Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146391Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146391Member" order="-2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146392Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146392Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146392Member" order="-1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="C000146393Member" xlink:href="ck0001318342-20251231.xsd#ck0001318342_C000146393Member"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_ClassAxis" xlink:to="C000146393Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="oef_PerformanceMeasureAxis" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_PerformanceMeasureAxis"/>
    <loc xlink:type="locator" xlink:label="index_Bloomberg_Aggregate_Bond_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_Bloomberg_Aggregate_Bond_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_Bloomberg_Aggregate_Bond_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="index_ICE_BofA_US_Cash_Pay_High_Yield_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_ICE_BofA_US_Cash_Pay_High_Yield_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_ICE_BofA_US_Cash_Pay_High_Yield_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="index_JP_Morgan_EM_Blend_Equal_Weighted_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_JP_Morgan_EM_Blend_Equal_Weighted_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_JP_Morgan_EM_Blend_Equal_Weighted_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="index_Bloomberg_Global_Aggregate_Credit_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_Bloomberg_Global_Aggregate_Credit_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_Bloomberg_Global_Aggregate_Credit_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="index_Bloomberg_US_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_Bloomberg_US_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_Bloomberg_US_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <loc xlink:type="locator" xlink:label="index_Bloomberg_ShortIntermediate_110_Years_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" xlink:href="ck0001318342-20251231.xsd#ck0001318342_index_Bloomberg_ShortIntermediate_110_Years_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember"/>
<!-- [WMV7][KLeBKGW/OxDMRkx1io0LTiMw13LbsKuJr8GIRXuhtsSxxSIQ2PLIUZf4edAUBXc77UCErLxpPwRRA1PVOr9OdCxfOpJA/+MwSG6hgOwRRSdXv+tTE84otvGNezh1pSVMfETP+Jz3z28Qk/iWUb0NJ2orcV3WPZn4tBo35L1yd3joA/AirOwXHfn2+xGHKJCFEVDR5x8Wjpy70rQi0P9p7dzT9+y5fA0J/aWLkExWjR943Zhn/LDEPjib7hYxvnqFzNGhVeCaNLUe3QKnDeV9XfcWETUI9IdjGnwHgEENI+FJ9pKcAQWVtBM892FPxYky8x29i6NYvlYwWUCwCahykoo1/KXIAtm99mc8YfZuwjD3DzG1sjsBkJ06+gRsp/aPgSHXRBcedPiDkDzkwkFeVKs=] CSR-->
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="oef_PerformanceMeasureAxis" xlink:to="index_Bloomberg_ShortIntermediate_110_Years_Municipal_Bond_Index_Reflects_No_Deductions_for_Fees_Expenses_or_TaxesMember" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </presentationLink>
</linkbase>
