<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" id="lnk" 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" xmlns:cik0000034273="http://www.virtus.com/20250930">
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2024/oef-2024.xsd#OperatingExpensesData" />
	<link:calculationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/OperatingExpensesData">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_NetExpensesOverAssets" xlink:label="NetExpensesOverAssets" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ExpensesOverAssets" xlink:label="ExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="ExpensesOverAssets" use="optional" priority="10" order="1.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ManagementFeesOverAssets" xlink:label="ManagementFeesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="ManagementFeesOverAssets" use="optional" priority="10" order="1.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_DistributionAndService12b1FeesOverAssets" xlink:label="DistributionAndService12b1FeesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionAndService12b1FeesOverAssets" use="optional" priority="10" order="2.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_DistributionOrSimilarNon12b1FeesOverAssets" xlink:label="DistributionOrSimilarNon12b1FeesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionOrSimilarNon12b1FeesOverAssets" use="optional" priority="10" order="3.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherExpensesOverAssets" xlink:label="OtherExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="OtherExpensesOverAssets" use="optional" priority="10" order="4.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_Component1OtherExpensesOverAssets" xlink:label="Component1OtherExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component1OtherExpensesOverAssets" use="optional" priority="10" order="1.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_Component2OtherExpensesOverAssets" xlink:label="Component2OtherExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component2OtherExpensesOverAssets" use="optional" priority="10" order="2.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_Component3OtherExpensesOverAssets" xlink:label="Component3OtherExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component3OtherExpensesOverAssets" use="optional" priority="10" order="3.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AcquiredFundFeesAndExpensesOverAssets" xlink:label="AcquiredFundFeesAndExpensesOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="10" order="5.0" weight="1" />
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_FeeWaiverOrReimbursementOverAssets" xlink:label="FeeWaiverOrReimbursementOverAssets" />
		<link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="FeeWaiverOrReimbursementOverAssets" use="optional" priority="10" order="2.0" weight="1" />
	</link:calculationLink>
</link:linkbase>