<?xml version='1.0' encoding='iso-8859-1'?>
<!-- Produced by edgar-services.com using EDGARsuite software, Advanced Computer Innovations, Inc., Copyright (C) 2008-2026 [PPWGG7LDR1F0VAM1U26S]. www.edgarsuite.com -->
<link:linkbase xmlns="http://www.xbrl.org/2003/linkbase"
		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:fil="http://volumetric.com/20260630"
		xmlns:link="http://www.xbrl.org/2003/linkbase"
		xmlns:xlink="http://www.w3.org/1999/xlink"
		xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
		xmlns:xbrli="http://www.xbrl.org/2003/instance">
	<link:roleRef roleURI="http://volumetric.com/20260630/role/idr_DocumentDocumentAndEntityInformation" xlink:type="simple" xlink:href="volmx-20260630.xsd#idr_DocumentDocumentAndEntityInformation"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://volumetric.com/20260630/role/idr_DocumentDocumentAndEntityInformation">
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract' xlink:label='dei_CoverAbstract'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_CoverAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis' xlink:label='dei_LegalEntityAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='dei_LegalEntityAxis' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain' xlink:label='dei_EntityDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='dei_EntityDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_S000012023Member' xlink:label='fil_S000012023Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='fil_S000012023Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ClassAxis' xlink:label='oef_ClassAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='oef_ClassAxis' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain' xlink:label='oef_ShareClassDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='oef_ShareClassDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_C000032757Member' xlink:label='fil_C000032757Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='fil_C000032757Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey' xlink:label='dei_EntityCentralIndexKey'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_EntityCentralIndexKey' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate' xlink:label='dei_CurrentFiscalYearEndDate'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_CurrentFiscalYearEndDate' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType' xlink:label='dei_DocumentType'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_DocumentType' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareholderReportAnnualOrSemiAnnual' xlink:label='oef_ShareholderReportAnnualOrSemiAnnual'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_ShareholderReportAnnualOrSemiAnnual' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName' xlink:label='dei_EntityRegistrantName'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_EntityRegistrantName' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate' xlink:label='dei_DocumentPeriodEndDate'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_DocumentPeriodEndDate' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag' xlink:label='dei_AmendmentFlag'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_AmendmentFlag' use='optional' order='7.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://volumetric.com/20260630/role/idr_DisclosureShareholderReport" xlink:type="simple" xlink:href="volmx-20260630.xsd#idr_DisclosureShareholderReport"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://volumetric.com/20260630/role/idr_DisclosureShareholderReport">
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareholderReportAbstract' xlink:label='oef_ShareholderReportAbstract'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ShareholderReportAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis' xlink:label='dei_LegalEntityAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='dei_LegalEntityAxis' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain' xlink:label='dei_EntityDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='dei_EntityDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_S000012023Member' xlink:label='fil_S000012023Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='fil_S000012023Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ClassAxis' xlink:label='oef_ClassAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='oef_ClassAxis' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain' xlink:label='oef_ShareClassDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='oef_ShareClassDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_C000032757Member' xlink:label='fil_C000032757Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='fil_C000032757Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_FundName' xlink:label='oef_FundName'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_FundName' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ClassName' xlink:label='oef_ClassName'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_ClassName' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol' xlink:label='dei_TradingSymbol'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='dei_TradingSymbol' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AnnlOrSemiAnnlStatementTextBlock' xlink:label='oef_AnnlOrSemiAnnlStatementTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AnnlOrSemiAnnlStatementTextBlock' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AddlInfoWebsite' xlink:label='oef_AddlInfoWebsite'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AddlInfoWebsite' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AddlInfoPhoneNumber' xlink:label='oef_AddlInfoPhoneNumber'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AddlInfoPhoneNumber' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AddlInfoEmail' xlink:label='oef_AddlInfoEmail'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AddlInfoEmail' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ExpensesPaidAmt' xlink:label='oef_ExpensesPaidAmt'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_ExpensesPaidAmt' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ExpenseRatioPct' xlink:label='oef_ExpenseRatioPct'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_ExpenseRatioPct' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsNet' xlink:label='us-gaap_AssetsNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_AssetsNet' use='optional' order='10.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_HoldingsCount' xlink:label='oef_HoldingsCount'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_HoldingsCount' use='optional' order='11.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AdvisoryFeesPaidAmt' xlink:label='oef_AdvisoryFeesPaidAmt'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AdvisoryFeesPaidAmt' use='optional' order='12.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyPortfolioTurnover' xlink:label='us-gaap_InvestmentCompanyPortfolioTurnover'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_InvestmentCompanyPortfolioTurnover' use='optional' order='13.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AccountantChngDisagreementsTextBlock' xlink:label='oef_AccountantChngDisagreementsTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_AccountantChngDisagreementsTextBlock' use='optional' order='14.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://volumetric.com/20260630/role/idr_DisclosureHoldings" xlink:type="simple" xlink:href="volmx-20260630.xsd#idr_DisclosureHoldings"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://volumetric.com/20260630/role/idr_DisclosureHoldings">
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_HoldingsAbstract' xlink:label='oef_HoldingsAbstract'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_HoldingsAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis' xlink:label='dei_LegalEntityAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='dei_LegalEntityAxis' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain' xlink:label='dei_EntityDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='dei_EntityDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_S000012023Member' xlink:label='fil_S000012023Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='dei_LegalEntityAxis' xlink:to='fil_S000012023Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ClassAxis' xlink:label='oef_ClassAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='oef_ClassAxis' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain' xlink:label='oef_ShareClassDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='oef_ShareClassDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_C000032757Member' xlink:label='fil_C000032757Member'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_ClassAxis' xlink:to='fil_C000032757Member' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_LargestHoldingAxis' xlink:label='oef_LargestHoldingAxis'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='oef_LargestHoldingAxis' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_LargestHoldingsDomain' xlink:label='oef_LargestHoldingsDomain'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='oef_LargestHoldingsDomain' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_SpdrSP500EtfTrustMember' xlink:label='fil_SpdrSP500EtfTrustMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_SpdrSP500EtfTrustMember' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_AppliedMaterialsIncMember' xlink:label='fil_AppliedMaterialsIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_AppliedMaterialsIncMember' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_MarvellTechnologyIncMember' xlink:label='fil_MarvellTechnologyIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_MarvellTechnologyIncMember' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_AlphabetIncMember' xlink:label='fil_AlphabetIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_AlphabetIncMember' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_BankOfNewYorkMellonCorpMember' xlink:label='fil_BankOfNewYorkMellonCorpMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_BankOfNewYorkMellonCorpMember' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_AppliedIndustrialTechIncMember' xlink:label='fil_AppliedIndustrialTechIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_AppliedIndustrialTechIncMember' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_EmersonElectricCoMember' xlink:label='fil_EmersonElectricCoMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_EmersonElectricCoMember' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_AppleIncMember' xlink:label='fil_AppleIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_AppleIncMember' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_WabtecCorpMember' xlink:label='fil_WabtecCorpMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_WabtecCorpMember' use='optional' order='10.0'/>
		<link:loc xlink:type='locator' xlink:href='volmx-20260630.xsd#fil_PncFinancialSvcsGroupIncMember' xlink:label='fil_PncFinancialSvcsGroupIncMember'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='oef_LargestHoldingAxis' xlink:to='fil_PncFinancialSvcsGroupIncMember' use='optional' order='11.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_PctOfNav' xlink:label='oef_PctOfNav'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='oef_PctOfNav' use='optional' order='1.0'/>
	</link:presentationLink>
</link:linkbase>
