<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with WebFilings-->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.lpl.com/role/CommitmentsAndContingencies" xlink:href="lpla-20120331.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CommitmentsAndContingenciesDetails" xlink:href="lpla-20120331.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CommitmentsAndContingenciesDetailsTextuals" xlink:href="lpla-20120331.xsd#CommitmentsAndContingenciesDetailsTextuals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CommitmentsAndContingenciesTables" xlink:href="lpla-20120331.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnauditedParentheticals" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfComprehensiveIncomeUnauditedParentheticals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfFinancialConditionUnaudited" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfFinancialConditionUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfFinancialConditionUnauditedParentheticals" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfFinancialConditionUnauditedParentheticals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:href="lpla-20120331.xsd#CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/DocumentAndEntityInformationDocument" xlink:href="lpla-20120331.xsd#DocumentAndEntityInformationDocument" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/EarningsPerShare" xlink:href="lpla-20120331.xsd#EarningsPerShare" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/EarningsPerShareDetails" xlink:href="lpla-20120331.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/EarningsPerShareDetailsTextuals" xlink:href="lpla-20120331.xsd#EarningsPerShareDetailsTextuals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/EarningsPerShareTables" xlink:href="lpla-20120331.xsd#EarningsPerShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/FairValueMeasurements" xlink:href="lpla-20120331.xsd#FairValueMeasurements" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/FairValueMeasurementsChangesInLevel3RecurringFairValueMeasurementsDetails" xlink:href="lpla-20120331.xsd#FairValueMeasurementsChangesInLevel3RecurringFairValueMeasurementsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisDetails" xlink:href="lpla-20120331.xsd#FairValueMeasurementsFinancialAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/FairValueMeasurementsTables" xlink:href="lpla-20120331.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/FinancialInstrumentsWithOffBalanceSheetCreditRiskAndConcentrationsOfCreditRisk" xlink:href="lpla-20120331.xsd#FinancialInstrumentsWithOffBalanceSheetCreditRiskAndConcentrationsOfCreditRisk" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/HeldToMaturitySecurities" xlink:href="lpla-20120331.xsd#HeldToMaturitySecurities" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/HeldToMaturitySecuritiesDetails" xlink:href="lpla-20120331.xsd#HeldToMaturitySecuritiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/HeldToMaturitySecuritiesDetails1" xlink:href="lpla-20120331.xsd#HeldToMaturitySecuritiesDetails1" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/HeldToMaturitySecuritiesTables" xlink:href="lpla-20120331.xsd#HeldToMaturitySecuritiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IncomeTaxes" xlink:href="lpla-20120331.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IncomeTaxesDetails" xlink:href="lpla-20120331.xsd#IncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/Indebtedness" xlink:href="lpla-20120331.xsd#Indebtedness" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IndebtednessDetails" xlink:href="lpla-20120331.xsd#IndebtednessDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IndebtednessDetails1" xlink:href="lpla-20120331.xsd#IndebtednessDetails1" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IndebtednessDetails2" xlink:href="lpla-20120331.xsd#IndebtednessDetails2" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IndebtednessDetailsTextuals" xlink:href="lpla-20120331.xsd#IndebtednessDetailsTextuals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IndebtednessTables" xlink:href="lpla-20120331.xsd#IndebtednessTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IntangibleAssets" xlink:href="lpla-20120331.xsd#IntangibleAssets" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IntangibleAssetsDetails" xlink:href="lpla-20120331.xsd#IntangibleAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IntangibleAssetsDetails1" xlink:href="lpla-20120331.xsd#IntangibleAssetsDetails1" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IntangibleAssetsDetailsTextuals" xlink:href="lpla-20120331.xsd#IntangibleAssetsDetailsTextuals" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/IntangibleAssetsTables" xlink:href="lpla-20120331.xsd#IntangibleAssetsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/InterestRateSwap" xlink:href="lpla-20120331.xsd#InterestRateSwap" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/InterestRateSwapDetails" xlink:href="lpla-20120331.xsd#InterestRateSwapDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirements" xlink:href="lpla-20120331.xsd#NetCapitalAndRegulatoryRequirements" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirementsDetails" xlink:href="lpla-20120331.xsd#NetCapitalAndRegulatoryRequirementsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirementsTables" xlink:href="lpla-20120331.xsd#NetCapitalAndRegulatoryRequirementsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/OrganizationAndDescriptionOfCompany" xlink:href="lpla-20120331.xsd#OrganizationAndDescriptionOfCompany" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/OrganizationAndDescriptionOfCompanyDetails" xlink:href="lpla-20120331.xsd#OrganizationAndDescriptionOfCompanyDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/RelatedPartyTransactions" xlink:href="lpla-20120331.xsd#RelatedPartyTransactions" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/RelatedPartyTransactionsDetails" xlink:href="lpla-20120331.xsd#RelatedPartyTransactionsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/Restructuring" xlink:href="lpla-20120331.xsd#Restructuring" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/RestructuringTableDetails" xlink:href="lpla-20120331.xsd#RestructuringTableDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/RestructuringTables" xlink:href="lpla-20120331.xsd#RestructuringTables" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/StockholdersEquity" xlink:href="lpla-20120331.xsd#StockholdersEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/StockholdersEquityDetails" xlink:href="lpla-20120331.xsd#StockholdersEquityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/SubsequentEvents" xlink:href="lpla-20120331.xsd#SubsequentEvents" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/SubsequentEventsFortigentAcquisitionDetails" xlink:href="lpla-20120331.xsd#SubsequentEventsFortigentAcquisitionDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="lpla-20120331.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:href="lpla-20120331.xsd#SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.lpl.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="lpla-20120331.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <calculationLink xlink:role="http://www.lpl.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_f18d515c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_f18d515c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_f18e3ac2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_f18e3ac2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_f18e0c3c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_f18e0c3c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_f18ddadc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_f18ddadc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_f18dad64-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_f18dad64-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_f18e6894-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_f18cd7ea-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_f18e6894-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/CommitmentsAndContingenciesDetailsTextuals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/CommitmentsAndContingenciesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f4a4611e-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f4a4611e-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xlink:label="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_f4886a68-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_f4886a68-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities_f3dcc9ec-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities_f3dcc9ec-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_e2e2e6ee-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_e2e2e6ee-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_DepositsOfRestrictedCash" xlink:label="loc_lpla_DepositsOfRestrictedCash_fc174808-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_DepositsOfRestrictedCash_fc174808-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_ReleaseOfRestrictedCash" xlink:label="loc_lpla_ReleaseOfRestrictedCash_fc1e0274-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f085995e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_ReleaseOfRestrictedCash_fc1e0274-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_e83bd45c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DepreciationAndAmortization_e83bd45c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_e3ed8ecc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_e3ed8ecc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_feb636d2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_feb636d2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_eaf41c9a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ShareBasedCompensation_eaf41c9a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_ec62243c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_ec62243c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_f43ffe9a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_f43ffe9a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e77bd6fc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e77bd6fc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_LeaseAbandonment" xlink:label="loc_lpla_LeaseAbandonment_fc12f686-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_LeaseAbandonment_fc12f686-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_LoanForgiveness" xlink:label="loc_lpla_LoanForgiveness_fc16fea2-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_LoanForgiveness_fc16fea2-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_0d51972c-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_0d51972c-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulationsChangesInOperatingAssetsAndLiabilities" xlink:label="loc_lpla_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulationsChangesInOperatingAssetsAndLiabilities_fc1cd8b8-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulationsChangesInOperatingAssetsAndLiabilities_fc1cd8b8-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_IncreaseDecreaseReceivablesFromClients" xlink:label="loc_lpla_IncreaseDecreaseReceivablesFromClients_fc1f7a1e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="13" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_IncreaseDecreaseReceivablesFromClients_fc1f7a1e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInBrokerageReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInBrokerageReceivables_feab7aee-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="14" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInBrokerageReceivables_feab7aee-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables_e5c50554-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="15" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherReceivables_e5c50554-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInTradingSecurities" xlink:label="loc_us-gaap_IncreaseDecreaseInTradingSecurities_eda857e4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="16" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInTradingSecurities_eda857e4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInSecuritiesBorrowed" xlink:label="loc_us-gaap_IncreaseDecreaseInSecuritiesBorrowed_01b61afa-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="17" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInSecuritiesBorrowed_01b61afa-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_ed9e60f4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="18" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_ed9e60f4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_DraftsPayableChangesInOperatingAssetsAndLiabilities" xlink:label="loc_lpla_DraftsPayableChangesInOperatingAssetsAndLiabilities_fc1d6fee-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="19" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_DraftsPayableChangesInOperatingAssetsAndLiabilities_fc1d6fee-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_IncreaseDecreasePayablesToClients" xlink:label="loc_lpla_IncreaseDecreasePayablesToClients_fc1f3144-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="20" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_IncreaseDecreasePayablesToClients_fc1f3144-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xlink:label="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_feac1b70-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="21" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_feac1b70-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_ChangesInAccruedCommissionsAndAdvisoryFeesPayable" xlink:label="loc_lpla_ChangesInAccruedCommissionsAndAdvisoryFeesPayable_fc1db918-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="22" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_ChangesInAccruedCommissionsAndAdvisoryFeesPayable_fc1db918-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_e5a2f2ca-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="23" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_e5a2f2ca-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_ff36e7fa-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="24" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_ff36e7fa-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxes" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_0a50953c-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="25" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_0a50953c-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased" xlink:label="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_fe64fbfa-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="26" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f0868ac6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_fe64fbfa-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_f56f62d8-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_f56f62d8-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_f3ebef12-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_f3ebef12-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_e7619774-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_e7619774-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f5a72484-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f5a72484-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_f43296ba-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_f43296ba-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_f88c5ffc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0848d20-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_f88c5ffc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_e63cc850-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_e63cc850-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease_f1d30b98-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_e63cc850-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease_f1d30b98-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnauditedParentheticals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfFinancialConditionUnaudited" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_e5378c74-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_e5378c74-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations" xlink:label="loc_us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations_e552f3f6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations_e552f3f6-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ReceivablesFromCustomers" xlink:label="loc_us-gaap_ReceivablesFromCustomers_f4e095b2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ReceivablesFromCustomers_f4e095b2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations" xlink:label="loc_us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_fefe4e5e-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_fefe4e5e-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherReceivablesNetCurrent" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_0d60ad7a-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_0d60ad7a-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TradingSecurities" xlink:label="loc_us-gaap_TradingSecurities_fab2c1c2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_TradingSecurities_fab2c1c2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_f0226d70-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_HeldToMaturitySecurities_f0226d70-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SecuritiesBorrowed" xlink:label="loc_us-gaap_SecuritiesBorrowed_f7229f3c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_SecuritiesBorrowed_f7229f3c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReceivable" xlink:label="loc_us-gaap_IncomeTaxReceivable_ecff01f8-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncomeTaxReceivable_ecff01f8-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f43e00ea-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_f43e00ea-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_fe9f9a08-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_fe9f9a08-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_edd3f2e6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_Goodwill_edd3f2e6-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_edcf1a64-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_edcf1a64-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaap_OtherAssets_0973d714-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_fa7db8f6-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherAssets_0973d714-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_eed459d8-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_eed459d8-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DraftsPayable" xlink:label="loc_us-gaap_DraftsPayable_ea00c018-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DraftsPayable_ea00c018-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PayablesToCustomers" xlink:label="loc_us-gaap_PayablesToCustomers_f2817ec6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PayablesToCustomers_f2817ec6-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PayablesToBrokerDealersAndClearingOrganizations" xlink:label="loc_us-gaap_PayablesToBrokerDealersAndClearingOrganizations_f26727c4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_PayablesToBrokerDealersAndClearingOrganizations_f26727c4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_AccruedCommissionsAndAdvisoryFeesPayable" xlink:label="loc_lpla_AccruedCommissionsAndAdvisoryFeesPayable_fc179100-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_AccruedCommissionsAndAdvisoryFeesPayable_fc179100-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_07a87c8c-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_07a87c8c-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TaxesPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_TaxesPayableCurrentAndNoncurrent_07bfc644-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_TaxesPayableCurrentAndNoncurrent_07bfc644-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_07b52482-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_07b52482-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_e81918b8-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DeferredRevenueCurrent_e81918b8-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue" xlink:label="loc_us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_f73e85d0-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_f73e85d0-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_e79d53cc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_eec8615a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_e79d53cc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_eed459d8-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_e62cff4c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_CommonStockValue_e62cff4c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_e31bf3b2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_e31bf3b2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_fdef0d3c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_TreasuryStockValue_fdef0d3c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_e2cdfc7a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_e2cdfc7a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_f62c5e7e-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_00bf81f4-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_f62c5e7e-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfFinancialConditionUnauditedParentheticals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:type="extended">
    <loc xlink:href="lpla-20120331.xsd#lpla_Expenses" xlink:label="loc_lpla_Expenses_fc1e5076-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lpla_Expenses_fc1e5076-dd6d-11e0-8c71-12313b06a4a2" xlink:to="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_CommissionsAndAdvisoryFees" xlink:label="loc_lpla_CommissionsAndAdvisoryFees_fc1e9b58-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_CommissionsAndAdvisoryFees_fc1e9b58-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaap_LaborAndRelatedExpense_eea8077a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LaborAndRelatedExpense_eea8077a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_PromotionalExpenses" xlink:label="loc_lpla_PromotionalExpenses_fc18235e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_PromotionalExpenses_fc18235e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_e83bd45c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_DepreciationAndAmortization_e83bd45c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OccupancyNet" xlink:label="loc_us-gaap_OccupancyNet_f0e1201c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OccupancyNet_f0e1201c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaap_ProfessionalFees_f10dca72-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_ProfessionalFees_f10dca72-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FloorBrokerageExchangeAndClearanceFees" xlink:label="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees_ebad7582-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees_ebad7582-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommunicationsAndInformationTechnology" xlink:label="loc_us-gaap_CommunicationsAndInformationTechnology_f0e01ad2-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_CommunicationsAndInformationTechnology_f0e01ad2-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_RegulatoryFeesAndExpenses" xlink:label="loc_lpla_RegulatoryFeesAndExpenses_fc1d26ba-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_RegulatoryFeesAndExpenses_fc1d26ba-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_f5f7b598-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_RestructuringCharges_f5f7b598-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherExpenses" xlink:label="loc_us-gaap_OtherExpenses_018b6f44-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_ff41c85a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherExpenses_018b6f44-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseSubordinatedNotesAndDebentures" xlink:label="loc_us-gaap_InterestExpenseSubordinatedNotesAndDebentures_ee0f24ba-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lpla_Expenses_fc1e5076-dd6d-11e0-8c71-12313b06a4a2" xlink:to="loc_us-gaap_InterestExpenseSubordinatedNotesAndDebentures_ee0f24ba-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_ec62243c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lpla_Expenses_fc1e5076-dd6d-11e0-8c71-12313b06a4a2" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_ec62243c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_089c4d08-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_089c4d08-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_0106fc64-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_0106fc64-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BrokerageCommissionsRevenue" xlink:label="loc_us-gaap_BrokerageCommissionsRevenue_e4b0eee4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_BrokerageCommissionsRevenue_e4b0eee4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentAdvisoryFees" xlink:label="loc_us-gaap_InvestmentAdvisoryFees_ee89ef56-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_InvestmentAdvisoryFees_ee89ef56-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_AssetBasedFees" xlink:label="loc_lpla_AssetBasedFees_fc1c8dae-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_AssetBasedFees_fc1c8dae-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_TransactionAndOtherFees" xlink:label="loc_lpla_TransactionAndOtherFees_fc17da3e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_TransactionAndOtherFees_fc17da3e-dd6d-11e0-8c71-12313b06a4a2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_f0b4a91a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_f0b4a91a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherIncome" xlink:label="loc_us-gaap_OtherIncome_01bcbe5a-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f19751c0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_OtherIncome_01bcbe5a-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/DocumentAndEntityInformationDocument" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/EarningsPerShare" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/EarningsPerShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_0463b780-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_0463b780-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="lpla-20120331.xsd#lpla_UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted" xlink:label="loc_lpla_UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted_fc147b91-a91e-23f6-dede-101c03163872" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_0463b780-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted_fc147b91-a91e-23f6-dede-101c03163872" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f986d78e-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_f98757ea-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f986d78e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_f98757ea-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f9898fce-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f986d78e-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f9898fce-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_f0affe56-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities" xlink:label="loc_us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities_0e93a530-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_f0affe56-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities_0e93a530-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_f0affe56-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_NetIncomeLoss_f0af6c2a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/EarningsPerShareDetailsTextuals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/EarningsPerShareTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/FairValueMeasurements" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/FairValueMeasurementsChangesInLevel3RecurringFairValueMeasurementsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/FairValueMeasurementsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/FinancialInstrumentsWithOffBalanceSheetCreditRiskAndConcentrationsOfCreditRisk" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/HeldToMaturitySecurities" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/HeldToMaturitySecuritiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_fa3b75f4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_f0226d70-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_fa3b75f4-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_HeldToMaturitySecurities_f0226d70-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain" xlink:label="loc_us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain_0d2e9830-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_fa3b75f4-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain_0d2e9830-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/HeldToMaturitySecuritiesDetails1" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount_0139f66e-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="lpla-20120331.xsd#lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsNetCarryingAmount" xlink:label="loc_lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsNetCarryingAmount_905ce9e5-cb2b-9083-285c-101c03168c5a" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount_0139f66e-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsNetCarryingAmount_905ce9e5-cb2b-9083-285c-101c03168c5a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_013778f8-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount_0139f66e-2586-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_013778f8-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue_fa6bcb50-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="lpla-20120331.xsd#lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xlink:label="loc_lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_769f1969-7fe8-afc1-12ca-101c0316087a" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue_fa6bcb50-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_769f1969-7fe8-afc1-12ca-101c0316087a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_fa689502-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue_fa6bcb50-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_fa689502-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/HeldToMaturitySecuritiesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IncomeTaxes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IncomeTaxesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/Indebtedness" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IndebtednessDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IndebtednessDetails1" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IndebtednessDetails2" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="lpla-20120331.xsd#lpla_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:label="loc_lpla_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_15d26804-561e-e743-a37e-101c0316d72c" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_lpla_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_15d26804-561e-e743-a37e-101c0316d72c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_efc5e3d4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_efc5e3d4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_efc5ac2a-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_efc5ac2a-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_efc56f1c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_efc56f1c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_efc53dbc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_efc53dbc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_efc4de80-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_efc8f358-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_efc4de80-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/IndebtednessDetailsTextuals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IndebtednessTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IntangibleAssets" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IntangibleAssetsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_edd1cd86-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_edd0f4f6-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_edd1cd86-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_edd0f4f6-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e2cbd8dc-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_edd1cd86-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e2cbd8dc-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/IntangibleAssetsDetails1" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearOne" xlink:label="loc_us-gaap_FutureAmortizationExpenseYearOne_ec1ea068-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseYearOne_ec1ea068-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FutureAmortizationExpenseYearTwo_ec2018e4-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseYearTwo_ec2018e4-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FutureAmortizationExpenseYearThree_ec1f5d28-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseYearThree_ec1f5d28-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FutureAmortizationExpenseYearFour_ec1e00e0-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseYearFour_ec1e00e0-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FutureAmortizationExpenseYearFive_ec1d63d8-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseYearFive_ec1d63d8-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FutureAmortizationExpenseAfterYearFive_08fa3c6a-2586-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense_eba7bac0-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_FutureAmortizationExpenseAfterYearFive_08fa3c6a-2586-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/IntangibleAssetsDetailsTextuals" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/IntangibleAssetsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/InterestRateSwap" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/InterestRateSwapDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirements" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirementsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ExcessNetCapitalAt1500Percent" xlink:label="loc_us-gaap_ExcessNetCapitalAt1500Percent_eb361a00-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCapital" xlink:label="loc_us-gaap_NetCapital_f07f443c-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ExcessNetCapitalAt1500Percent_eb361a00-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_NetCapital_f07f443c-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MinimumNetCapitalRequiredForBrokerDealerSubsidiary" xlink:label="loc_us-gaap_MinimumNetCapitalRequiredForBrokerDealerSubsidiary_f0552922-2585-11e0-bc05-7b821c07cce9" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ExcessNetCapitalAt1500Percent_eb361a00-2585-11e0-bc05-7b821c07cce9" xlink:to="loc_us-gaap_MinimumNetCapitalRequiredForBrokerDealerSubsidiary_f0552922-2585-11e0-bc05-7b821c07cce9" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.lpl.com/role/NetCapitalAndRegulatoryRequirementsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/OrganizationAndDescriptionOfCompany" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/OrganizationAndDescriptionOfCompanyDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/RelatedPartyTransactions" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/RelatedPartyTransactionsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/Restructuring" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/RestructuringTableDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/RestructuringTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/StockholdersEquity" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/StockholdersEquityDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/SubsequentEvents" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/SubsequentEventsFortigentAcquisitionDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.lpl.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended" />
</linkbase>
</XBRL>
