0000898745-24-000583.txt : 20240617 0000898745-24-000583.hdr.sgml : 20240617 20240617101643 ACCESSION NUMBER: 0000898745-24-000583 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 15 FILED AS OF DATE: 20240617 DATE AS OF CHANGE: 20240617 EFFECTIVENESS DATE: 20240617 FILER: COMPANY DATA: COMPANY CONFORMED NAME: PRINCIPAL FUNDS, INC. CENTRAL INDEX KEY: 0000898745 ORGANIZATION NAME: IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-59474 FILM NUMBER: 241047188 BUSINESS ADDRESS: STREET 1: 711 HIGH STREET CITY: DES MOINES STATE: IA ZIP: 50392 BUSINESS PHONE: 515-235-1209 MAIL ADDRESS: STREET 1: PRINCIPAL FINANCIAL GROUP CITY: DES MOINES STATE: IA ZIP: 50392 FORMER COMPANY: FORMER CONFORMED NAME: PRINCIPAL FUNDS, INC DATE OF NAME CHANGE: 20211220 FORMER COMPANY: FORMER CONFORMED NAME: PRINCIPAL FUNDS INC DATE OF NAME CHANGE: 20080616 FORMER COMPANY: FORMER CONFORMED NAME: PRINCIPAL INVESTORS FUND INC DATE OF NAME CHANGE: 20001012 0000898745 S000006952 Core Plus Bond Fund fka Bond & Mortgage Securities Fund C000018956 R-1 PBOMX C000018958 R-3 PBMMX C000018959 R-5 PBMPX C000018960 R-4 PBMSX C000018961 Institutional Class PMSIX C000018962 J Class PBMJX C000018963 A Class PRBDX 0000898745 S000006992 Diversified International Fund 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Principal Funds, Inc.
Supplement dated June 17, 2024
to the Prospectus and Statement of Additional Information
both dated March 1, 2024
(as previously supplemented)
This supplement updates information currently in the Prospectus and Statement of Additional Information. Please retain this supplement for future reference.
The changes described below are being made to the Prospectus.
SUMMARY FOR INTERNATIONAL FUND I
On June 12, 2024, the Fund’s Board of Directors approved a change to the name of the International Fund I. On July 31, 2024, the International Fund I will change its name to the International Equity Fund. On that date, delete all references in this Prospectus to the International Fund I, and replace with International Equity Fund.
On July 31, 2024, delete the two paragraphs in the Principal Investment Strategies section in their entirety and replace with the below, with the underlined sentences reflecting the change:
Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities. The Fund invests primarily in foreign equity securities, including emerging market securities. The Fund typically invests in foreign securities of at least ten countries. The Fund invests in equity securities of small, medium, and large market capitalization companies.
The Fund invests in value equity securities, an investment strategy that emphasizes buying equity securities that appear to be undervalued. The Fund also invests in growth equity securities, an investment strategy that emphasizes buying equity securities of companies whose potential for growth of capital and earnings is expected to be above average. The Fund uses derivatives to enhance returns and to manage investment risks. A derivative is a financial arrangement, the value of which is derived from, or based on, a traditional security, asset, or market index. Specifically, the Fund uses currency forwards, futures, and options.
On July 31, 2024, add the following alphabetically under Principal Risks:
Derivatives Risk. Derivatives may not move in the direction anticipated by the portfolio manager. Transactions in derivatives may increase volatility, cause the liquidation of portfolio positions when not advantageous to do so, and result in disproportionate losses that may be substantially greater than a fund’s initial investment.
•Currency Contracts. Derivatives related to currency contracts involve the specific risk of government action through exchange controls that would restrict the ability of the fund to deliver or receive currency.
•Forward Contracts, Futures, and Swaps. Forward contracts, futures, and swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the fund and the price of the forward contract, future, or swap; possible lack of a liquid secondary market for a forward contract, future, or swap and the resulting inability to close a forward contract, future, or swap when desired; counterparty risk; and if the fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.
•Options. Options involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the options; counterparty risk; difference in trading hours for the options markets and the markets for the underlying securities (rate movements can take place in the underlying markets that cannot be reflected in the options markets); and an insufficient liquid secondary market for particular options.
1

On July 31, 2024, delete the Investment Advisor and Sub-Advisor and Portfolio Managers sections, and replace with the following:
Investment Advisor and Portfolio Managers
Principal Global Investors, LLC
•Paul H. Blankenhagen (since 2024), Portfolio Manager
•George Maris (since 2024), Portfolio Manager
ADDITIONAL INFORMATION ABOUT INVESTMENT STRATEGIES AND RISKS
On July 31, 2024, in the Strategy and Risk Table for the International Fund I (which will be amended to read International Equity, effective July 31, 2024), add an “X” in the row for Derivatives.
MANAGEMENT OF THE FUNDS
On July 31, 2024, under The Manager and Advisor section, under Funds, add International Equity to the list in alphabetical order.
On July 31, 2024, under The Sub-Advisors section, delete the Sub-Advisor: Origin Asset Management LLP section.
DISTRIBUTION PLANS AND INTERMEDIARY COMPENSATION
Under Distribution and/or Service (12b-1) Fees, in the Class J Shares section, delete the second paragraph and footnote and replace with the following:
Effective July 1, 2024, the Distributor has voluntarily agreed to limit the distribution fees attributable to Class J, reducing the Funds’ distribution fees for Class J shares by 0.010%.* This voluntary waiver may be revised or terminated at any time without notice to shareholders.
*For the period from January 1, 2021 to June 30, 2024, the voluntary waiver was 0.020%.
The changes described below are being made to the Statement of Additional Information.
On June 12, 2024, Fritz Hirsch retired as an Independent Board Member effective immediately. As such, delete all references to Mr. Hirsch from the Statement of Additional Information.
On June 12, 2024, the Fund’s Board of Directors approved a change to the name of the International Fund I. On July 31, 2024, the International Fund I will change its name to the International Equity Fund. On that date, delete all references in this Statement of Additional Information to International Fund I, and replace with International Equity Fund.
INVESTMENT ADVISORY AND OTHER SERVICES
On July 31, 2024, delete all references to Origin Asset Management LLP and Chris Charter, Tarlock Randhawa, and Nerys Weir, in the section.
Under Rule 12b-1 Fees / Distribution Plans and Agreements, delete the fifth paragraph and footnote, following the Maximum Annualized Rule 12b-1 Fee table, and replace with the following:
Effective July 1, 2024, the Distributor has voluntarily agreed to limit the distribution fees attributable to Class J, reducing the Funds’ distribution fees for Class J shares by 0.010%.* This voluntary waiver may be revised or terminated at any time without notice to shareholders.
*For the period from January 1, 2021 to June 30, 2024, the voluntary waiver was 0.020%.
2

PORTFOLIO MANAGER DISCLOSURE
On July 31, 2024, delete all references to Origin Asset Management LLP and Chris Charter, Tarlock Randhawa, and Nerys Weir, in the section.
In the Advisor: Principal Global Investors, LLC (Principal Equities Portfolio Managers) table, delete the rows for George Maris and Paul H. Blankenhagen and replace with the following alphabetically:
Other Accounts Managed
Total Number
of Accounts		Total Assets
in the Accounts
Number of Accounts
that base the Advisory Fee on Performance
Total Assets
of the Accounts
that base the Advisory Fee on Performance
Paul H. Blankenhagen(1): Diversified International Fund and International Equity Fund(2)
Registered investment companies3$852 million0$0
Other pooled investment vehicles2$3.1 billion0$0
Other Accounts12$1.4 billion1$313 million
George Maris(1): Diversified International Fund and International Equity Fund(2)
Registered investment companies3$852 million0$0
Other pooled investment vehicles2$3.1 billion0$0
Other accounts12$1.4 billion1$313 million
(1)Information as of May 31, 2024
(2)Effective July 31, 2024, the International Fund I changed its name to the International Equity Fund.
On July 31, 2024, in the Ownership of Securities table, delete the rows for George Maris and Paul H. Blankenhagen and replace with the following alphabetically:
Ownership of Securities
Portfolio ManagerPFI Funds Managed by Portfolio ManagerDollar Range of Securities Owned by the Portfolio Manager
Paul H. Blankenhagen(1)
International Equity Fund(2)
None
George Maris(1)
International Equity Fund(2)
None
(1)Information as of May 31, 2024
(2)Effective July 31, 2024, the International Fund I changed its name to the International Equity Fund.
3
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S000024296 Index No Deduction for Fees, Expenses, Taxes [Text] Index No Deduction for Fees, Expenses, Taxes [Text] Expenses Represent Both Master and Feeder [Text] Expenses Represent Both Master and Feeder [Text] S&P Target Date 2045 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2045 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2045 Index (reflects no deduction for fees, expenses, or taxes) Russell 2000 Index (reflects no deduction for fees, expenses, or taxes) Russell 2000 Index (reflects no deduction for fees, expenses, or taxes) Russell 2000 Index (reflects no deduction for fees, expenses, or taxes) Bloomberg Credit 1-3 Years Index (reflects no deduction for fees, expenses, or taxes) Bloomberg Credit 1-3 Years Index (reflects no deduction for fees, expenses, or taxes) Bloomberg Credit 1-3 Years Index (reflects no deduction for fees, expenses, or taxes) Maximum Deferred Sales Charge (as a percentage of Offering Price) Maximum 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LifeTime 2025 Fund, S000022104 Strategic Asset Management Conservative Growth Portfolio Strategic Asset Management Conservative Growth Portfolio Strategic Asset Management Conservative Growth Portfolio, S000014234 Inflation Protection Fund Inflation Protection Fund Inflation Protection Fund, S000006997 Net Expenses (as a percentage of Assets) Net Expenses (as a percentage of Assets) Risk Lose Money [Member] Risk Lose Money [Member] Performance Table Not Relevant to Tax Deferred Performance Table Not Relevant to Tax Deferred Distribution and Service (12b-1) Fees Distribution and Service (12b-1) Fees MSCI EAFE Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) MSCI EAFE Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) MSCI EAFE Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) S&P Target Date 2035 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Illustrates Variability of Returns [Text] Performance Information Illustrates Variability of Returns [Text] High Yield Fund High Yield Fund High Yield Fund, S000014241 S&P Target Date 2055 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2055 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2055 Index (reflects no deduction for fees, expenses, or taxes) SAM Strategic Growth Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Strategic Growth Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Strategic Growth Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) Overseas Fund Overseas Fund Overseas Fund, S000023512 Expense Example, with Redemption, 5 Years Expense Example, with Redemption, 5 Years Russell Midcap Value Index (reflects no deduction for fees, expenses, or taxes) Russell Midcap Value Index (reflects no deduction for fees, expenses, or taxes) Russell Midcap Value Index (reflects no deduction for fees, expenses, or taxes) Central Index Key Entity Central Index Key Expense Example, with Redemption, 3 Years Expense Example, with Redemption, 3 Years Expense Example, with Redemption, 1 Year Expense Example, with Redemption, 1 Year Expenses Deferred Charges [Text Block] Expenses Deferred Charges [Text Block] SAM Flexible Income Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Flexible Income Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Flexible Income Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) S&P Target Date Retirement Income Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date Retirement Income Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date Retirement Income Index (reflects no deduction for fees, expenses, or taxes) Risk [Axis] Risk [Axis] S&P Midcap 400 Index (reflects no deduction for fees, expenses, or taxes) S&P Midcap 400 Index (reflects no deduction for fees, expenses, or taxes) S&P Midcap 400 Index (reflects no deduction for fees, expenses, or taxes) Portfolio Turnover [Text Block] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Portfolio Turnover, Rate Strategic Asset Management Flexible Income Portfolio Strategic Asset Management Flexible Income Portfolio Strategic Asset Management Flexible Income Portfolio, S000014235 Principal LifeTime 2015 Fund Principal LifeTime 2015 Fund Principal LifeTime 2015 Fund, S000022103 Year to Date Return, Label Year to Date Return, Label Expense Example Narrative [Text Block] Expense Example Narrative [Text Block] Expense Example, with Redemption, 10 Years Expense Example, with Redemption, 10 Years S&P 500 Index (reflects no deduction for fees, expenses, or taxes) S&P 500 Index (reflects no deduction for fees, expenses, or taxes) S&P 500 Index (reflects no deduction for fees, expenses, or taxes) All Risks [Member] All Risks [Member] Series Series SmallCap Fund SmallCap Fund SmallCap Fund, S000007214 Amendment Flag Amendment Flag Money Market Seven Day Yield Phone Money Market Seven Day Yield Phone Acquired Fund Fees and Expenses, Based on Estimates [Text] Acquired Fund Fees and Expenses, Based on Estimates [Text] Series [Axis] Series [Axis] Expense Example [Heading] Expense Example [Heading] MSCI ACWI Ex USA Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) MSCI ACWI Ex USA Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) MSCI ACWI Ex USA Index NTR (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) Risk [Heading] Risk [Heading] Expense Example, No Redemption Narrative [Text Block] Expense Example, No Redemption Narrative [Text Block] Thirty Day Yield Phone Thirty Day Yield Phone Performance Table Uses Highest Federal Rate Performance Table Uses Highest Federal Rate Principal LifeTime Hybrid 2045 Fund Principal LifeTime Hybrid 2045 Fund Principal LifeTime Hybrid 2045 Fund, S000046562 Money Market Seven Day Yield Column [Text] Money Market Seven Day Yield Column [Text] Bar Chart and Performance Table [Heading] Bar Chart and Performance Table [Heading] Shareholder Fees Caption [Text] Shareholder Fees Caption [Text] Risk Not Insured [Member] Risk Not Insured [Member] Expense Footnotes [Text Block] Expense Footnotes [Text Block] Principal LifeTime Hybrid 2060 Fund Principal LifeTime Hybrid 2060 Fund Principal LifeTime Hybrid 2060 Fund, S000046555 Performance Table One Class of after Tax Shown [Text] Performance Table One Class of after Tax Shown [Text] Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Money Market Seven Day Tax Equivalent Yield Money Market Seven Day Tax Equivalent Yield Fee Waiver or Reimbursement Fee Waiver or Reimbursement Principal LifeTime 2035 Fund Principal LifeTime 2035 Fund Principal LifeTime 2035 Fund, S000022105 Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund Price Fluctuates [Member] Finisterre Emerging Markets Total Return Bond Fund Finisterre Emerging Markets Total Return Bond Fund Finisterre Emerging Markets Total Return Bond Fund, S000054330 Prospectus Date Prospectus Date Expenses (as a percentage of Assets) Expenses (as a percentage of Assets) S&P Target Date 2060 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2060 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2060 Index (reflects no deduction for fees, expenses, or taxes) Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] JPM EMBI Global Diversified Index (reflects no deduction for fees, expenses, or taxes) JPM EMBI Global Diversified Index (reflects no deduction for fees, expenses, or taxes) JPM EMBI Global Diversified Index (reflects no deduction for fees, expenses, or taxes) MidCap S&P 400 Index Fund MidCap S&P 400 Index Fund MidCap S&P 400 Index Fund, S000007079 Expense Example Footnotes [Text Block] Expense Example Footnotes [Text Block] Lowest Quarterly Return, Date Lowest Quarterly Return, Date Prospectus: Prospectus: Legal Entity Identifier Legal Entity Identifier Bloomberg California Municipal Index (reflects no deduction for fees, expenses, or taxes) Bloomberg California Municipal Index (reflects no deduction for fees, expenses, or taxes) Bloomberg California Municipal Index (reflects no deduction for fees, expenses, or taxes) Strategic Asset Management Conservative Balanced Portfolio Strategic Asset Management Conservative Balanced Portfolio Strategic Asset Management Conservative Balanced Portfolio, S000014233 Risk/Return: Risk/Return: Performance Table Narrative Performance Table Narrative Highest Quarterly Return, Date Highest Quarterly Return, Date Amendment Description Amendment Description Supplement Closing [Text Block] Supplement Closing Supplement Closing Expenses Explanation of Nonrecurring Account Fee [Text] Expenses Explanation of Nonrecurring Account Fee [Text] Supplement to Prospectus [Text Block] Supplement to Prospectus [Text Block] Performance Availability Phone [Text] Performance Availability Phone [Text] Bar Chart, Year to Date Return Bar Chart, Year to Date Return Expense [Heading] Expense [Heading] Since Inception Since Inception Principal LifeTime Hybrid 2020 Fund Principal LifeTime Hybrid 2020 Fund Principal LifeTime Hybrid 2020 Fund, S000046557 Annual Return Caption [Text] Annual Return Caption [Text] Principal LifeTime 2055 Fund Principal LifeTime 2055 Fund Principal LifeTime 2055 Fund, S000022107 PFI Prospectus PFI Prospectus PFI Prospectus Performance One Year or Less [Text] Performance One Year or Less [Text] Objective [Heading] Objective [Heading] Russell 3000 Index (reflects no deduction for fees, expenses, or taxes) Russell 3000 Index (reflects no deduction for fees, expenses, or taxes) Russell 3000 Index (reflects no deduction for fees, expenses, or taxes) Performance Table Explanation after Tax Higher Performance Table Explanation after Tax Higher Derivatives Risk Member Derivatives Risk Member Derivatives Risk Member Principal LifeTime Hybrid 2025 Fund Principal LifeTime Hybrid 2025 Fund Principal LifeTime Hybrid 2025 Fund, S000046558 Expense Breakpoint, Minimum Investment Required [Amount] Expense Breakpoint, Minimum Investment Required [Amount] Expense Example, No Redemption, 3 Years Expense Example, No Redemption, 3 Years Expense Example, No Redemption, 1 Year Expense Example, No Redemption, 1 Year S&P Target Date 2065+ Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2065+ Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2065+ Index (reflects no deduction for fees, expenses, or taxes) Bar Chart Narrative [Text Block] Bar Chart Narrative [Text Block] Russell 1000 Value Index (reflects no deduction for fees, expenses, or taxes) Russell 1000 Value Index (reflects no deduction for fees, expenses, or taxes) Russell 1000 Value Index (reflects no deduction for fees, expenses, or taxes) Principal LifeTime Hybrid 2050 Fund Principal LifeTime Hybrid 2050 Fund Principal LifeTime Hybrid 2050 Fund, S000046563 MidCap Growth Fund MidCap Growth Fund MidCap Growth Fund, S000007078 Highest Quarterly Return, Label Highest Quarterly Return, Label S&P Target Date 2020 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2020 Index (reflects no deduction for fees, expenses, or taxes) S&P Target Date 2020 Index (reflects no deduction for fees, expenses, or taxes) Label Label Performance Availability Website Address [Text] Performance Availability Website Address [Text] Objective, Secondary [Text Block] Objective, Secondary [Text Block] Russell 1000 Growth Index (reflects no deduction for fees, expenses, or taxes) Russell 1000 Growth Index (reflects no deduction for fees, expenses, or taxes) Russell 1000 Growth Index (reflects no deduction for fees, expenses, or taxes) SAM Balanced Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Balanced Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) SAM Balanced Blended Index (except as noted for MSCI EAFE Index NTR, reflects no deduction for fees, expenses, or taxes) FTSE NAREIT All Equity REIT Index (reflects no deduction for fees, expenses, or taxes) FTSE NAREIT All Equity REIT Index (reflects no deduction for fees, expenses, or taxes) FTSE NAREIT All Equity REIT Index (reflects no deduction for fees, expenses, or taxes) International Fund I International Fund I International Fund I, S000007083 Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Principal LifeTime 2045 Fund Principal LifeTime 2045 Fund Principal LifeTime 2045 Fund, S000022106 Bar Chart [Heading] Bar Chart [Heading] Expense Example Closing [Text Block] Expense Example Closing [Text Block] EX-101.PRE 6 ck0000898745-20231031_pre.xml XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT XML 8 R1.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Oct. 31, 2023
Registrant Name dei_EntityRegistrantName Principal Funds, Inc.
Central Index Key dei_EntityCentralIndexKey 0000898745
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jun. 17, 2024
Document Effective Date dei_DocumentEffectiveDate Jun. 17, 2024
Prospectus Date rr_ProspectusDate Mar. 01, 2024
Entity Inv Company Type dei_EntityInvCompanyType N-1A
XML 9 R2.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Principal Funds, Inc.
Supplement dated June 17, 2024
to the Prospectus and Statement of Additional Information
both dated March 1, 2024
(as previously supplemented)
This supplement updates information currently in the Prospectus and Statement of Additional Information. Please retain this supplement for future reference.
The changes described below are being made to the Prospectus.
SUMMARY FOR INTERNATIONAL FUND I
On June 12, 2024, the Fund’s Board of Directors approved a change to the name of the International Fund I. On July 31, 2024, the International Fund I will change its name to the International Equity Fund. On that date, delete all references in this Prospectus to the International Fund I, and replace with International Equity Fund.
California Municipal Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading California Municipal Fund
Core Fixed Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Core Fixed Income Fund
Core Plus Bond Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Core Plus Bond Fund
Diversified Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Diversified Income Fund
Diversified International Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Diversified International Fund
Equity Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Equity Income Fund formerly Equity Income Fund I
Finisterre Emerging Markets Total Return Bond Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Finisterre Emerging Markets Total Return Bond Fund
Global Emerging Markets Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Global Emerging Markets Fund
Global Real Estate Securities Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Global Real Estate Securities Fund
Government & High Quality Bond Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Government & High Quality Bond Fund
Government Money Market Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Government Money Market Fund
High Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading High Income Fund
High Yield Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading High Yield Fund
Inflation Protection Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Inflation Protection Fund
LargeCap Growth Fund I  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading LargeCap Growth Fund I
LargeCap S&P 500 Index Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading LargeCap S&P 500 Index Fund
LargeCap Value Fund III  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading LargeCap Value Fund III
MidCap Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading MidCap Fund
MidCap Growth Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading MidCap Growth Fund
MidCap Growth Fund III  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading MidCap Growth Fund III
MidCap S&P 400 Index Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading MidCap S&P 400 Index Fund
MidCap Value Fund I  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading MidCap Value Fund I
Money Market Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Money Market Fund
Overseas Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Overseas Fund
Principal Capital Appreciation Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal Capital Appreciation Fund
Principal LifeTime Strategic Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Strategic Income Fund
Principal LifeTime 2015 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2015 Fund
Principal LifeTime 2020 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2020 Fund
Principal LifeTime 2025 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2025 Fund
Principal LifeTime 2030 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2030 Fund
Principal LifeTime 2035 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2035 Fund
Principal LifeTime 2040 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2040 Fund
Principal LifeTime 2045 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2045 Fund
Principal LifeTime 2050 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2050 Fund
Principal LifeTime 2055 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2055 Fund
Principal LifeTime 2060 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2060 Fund
Principal LifeTime 2065 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2065
Principal LifeTime 2070 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime 2070 Fund
Principal LifeTime Hybrid Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid Income Fund
Principal LifeTime Hybrid 2015 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2015 Fund
Principal LifeTime Hybrid 2020 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2020 Fund
Principal LifeTime Hybrid 2025 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2025 Fund
Principal LifeTime Hybrid 2030 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2030 Fund
Principal LifeTime Hybrid 2035 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2035 Fund
Principal LifeTime Hybrid 2040 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2040 Fund
Principal LifeTime Hybrid 2045 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2045 Fund
Principal LifeTime Hybrid 2050 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2050 Fund
Principal LifeTime Hybrid 2055 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2055 Fund
Principal LifeTime Hybrid 2060 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2060 Fund
Principal LifeTime Hybrid 2065 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2065
Principal LifeTime Hybrid 2070 Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Principal LifeTime Hybrid 2070 Fund
Real Estate Securities Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Real Estate Securities Fund
Strategic Asset Management Balanced Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Strategic Asset Management Balanced Portfolio
Strategic Asset Management Conservative Balanced Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Strategic Asset Management Conservative Balanced Portfolio
Strategic Asset Management Conservative Growth Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Strategic Asset Management Conservative Growth Portfolio
Strategic Asset Management Flexible Income Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Strategic Asset Management Flexible Income Portfolio
Strategic Asset Management Strategic Growth Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Strategic Asset Management Strategic Growth Portfolio
Short-Term Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Short-Term Income Fund
SmallCap Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading SmallCap Fund
SmallCap Growth Fund I  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading SmallCap Growth Fund I
SmallCap S&P 600 Index Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading SmallCap S&P 600 Index Fund
SmallCap Value Fund II  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading SmallCap Value Fund II
Tax-Exempt Bond Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Tax-Exempt Bond Fund formerly Tax-Exempt Bond Fund I
PFI Prospectus | International Fund I  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading SUMMARY FOR INTERNATIONAL FUND I
Strategy [Heading] rr_StrategyHeading On July 31, 2024, delete the two paragraphs in the Principal Investment Strategies section in their entirety and replace with the below, with the underlined sentences reflecting the change:
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities. The Fund invests primarily in foreign equity securities, including emerging market securities. The Fund typically invests in foreign securities of at least ten countries. The Fund invests in equity securities of small, medium, and large market capitalization companies.
The Fund invests in value equity securities, an investment strategy that emphasizes buying equity securities that appear to be undervalued. The Fund also invests in growth equity securities, an investment strategy that emphasizes buying equity securities of companies whose potential for growth of capital and earnings is expected to be above average. The Fund uses derivatives to enhance returns and to manage investment risks. A derivative is a financial arrangement, the value of which is derived from, or based on, a traditional security, asset, or market index. Specifically, the Fund uses currency forwards, futures, and options.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities. The Fund invests primarily in foreign equity securities, including emerging market securities.
Risk [Heading] rr_RiskHeading On July 31, 2024, add the following alphabetically under Principal Risks:
PFI Prospectus | International Fund I | Derivatives Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Derivatives Risk. Derivatives may not move in the direction anticipated by the portfolio manager. Transactions in derivatives may increase volatility, cause the liquidation of portfolio positions when not advantageous to do so, and result in disproportionate losses that may be substantially greater than a fund’s initial investment.
•Currency Contracts. Derivatives related to currency contracts involve the specific risk of government action through exchange controls that would restrict the ability of the fund to deliver or receive currency.
•Forward Contracts, Futures, and Swaps. Forward contracts, futures, and swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the fund and the price of the forward contract, future, or swap; possible lack of a liquid secondary market for a forward contract, future, or swap and the resulting inability to close a forward contract, future, or swap when desired; counterparty risk; and if the fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.
•Options. Options involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the options; counterparty risk; difference in trading hours for the options markets and the markets for the underlying securities (rate movements can take place in the underlying markets that cannot be reflected in the options markets); and an insufficient liquid secondary market for particular options.
On July 31, 2024, delete the Investment Advisor and Sub-Advisor and Portfolio Managers sections, and replace with the following:
Investment Advisor and Portfolio Managers
Principal Global Investors, LLC
•Paul H. Blankenhagen (since 2024), Portfolio Manager
•George Maris (since 2024), Portfolio Manager
ADDITIONAL INFORMATION ABOUT INVESTMENT STRATEGIES AND RISKS
On July 31, 2024, in the Strategy and Risk Table for the International Fund I (which will be amended to read International Equity, effective July 31, 2024), add an “X” in the row for Derivatives.
PFI Prospectus | International Fund I | Derivatives Risk, Currency Contracts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Currency Contracts. Derivatives related to currency contracts involve the specific risk of government action through exchange controls that would restrict the ability of the fund to deliver or receive currency.
PFI Prospectus | International Fund I | Derivatives Risk, Forward Contracts, Futures, And Swaps Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Forward Contracts, Futures, and Swaps. Forward contracts, futures, and swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the fund and the price of the forward contract, future, or swap; possible lack of a liquid secondary market for a forward contract, future, or swap and the resulting inability to close a forward contract, future, or swap when desired; counterparty risk; and if the fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.
PFI Prospectus | International Fund I | Derivatives Risk, Options Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Options. Options involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the options; counterparty risk; difference in trading hours for the options markets and the markets for the underlying securities (rate movements can take place in the underlying markets that cannot be reflected in the options markets); and an insufficient liquid secondary market for particular options.
On July 31, 2024, delete the Investment Advisor and Sub-Advisor and Portfolio Managers sections, and replace with the following:
Investment Advisor and Portfolio Managers
Principal Global Investors, LLC
•Paul H. Blankenhagen (since 2024), Portfolio Manager
•George Maris (since 2024), Portfolio Manager
ADDITIONAL INFORMATION ABOUT INVESTMENT STRATEGIES AND RISKS
On July 31, 2024, in the Strategy and Risk Table for the International Fund I (which will be amended to read International Equity, effective July 31, 2024), add an “X” in the row for Derivatives.
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(B) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), or a retail Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(25), and that is subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter (or is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, but has chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii)), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. (C) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), that is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, and that has not chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. Instruction. If an affiliated person, promoter, or principal underwriter of the Fund, or an affiliated person of such a person, has contractually committed to provide financial support to the Fund, and the term of the agreement will extend for at least one year following the effective date of the Fund's registration statement, the statement specified in Item 4(b)(1)(ii)(A), Item 4(b)(1)(ii)(B), or Item 4(b)(1)(ii)(C) may omit the last sentence (\"The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.\"). 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Growth Fund III SmallCap Value Fund II MidCap Value Fund I SmallCap Growth Fund I SmallCap S&P 600 Index Fund Principal LifeTime 2020 Fund Principal LifeTime 2030 Fund Principal LifeTime 2040 Fund Principal LifeTime 2050 Fund Principal LifeTime Strategic Income Fund Real Estate Securities Fund SmallCap Fund California Municipal Fund Strategic Asset Management Conservative Balanced Portfolio Strategic Asset Management Conservative Growth Portfolio Strategic Asset Management Flexible Income Portfolio Strategic Asset Management Strategic Growth Portfolio Tax-Exempt Bond Fund formerly Tax-Exempt Bond Fund I Principal Capital Appreciation Fund Equity Income Fund formerly Equity Income Fund I High Yield Fund Core Fixed Income Fund Government & High Quality Bond Fund Short-Term Income Fund Strategic Asset Management Balanced Portfolio Global Real Estate Securities Fund Principal LifeTime 2015 Fund Principal LifeTime 2025 Fund Principal LifeTime 2035 Fund Principal LifeTime 2045 Fund Principal LifeTime 2055 Fund Overseas Fund Diversified Income Fund Principal LifeTime 2060 Fund Principal LifeTime Hybrid Income Fund Principal LifeTime Hybrid 2055 Fund Principal LifeTime Hybrid 2060 Fund Principal LifeTime Hybrid 2015 Fund Principal LifeTime Hybrid 2020 Fund Principal LifeTime Hybrid 2025 Fund Principal LifeTime Hybrid 2030 Fund Principal LifeTime Hybrid 2035 Fund Principal LifeTime Hybrid 2040 Fund Principal LifeTime Hybrid 2045 Fund Principal LifeTime Hybrid 2050 Fund Finisterre Emerging Markets Total Return Bond Fund Principal LifeTime 2065 Principal LifeTime Hybrid 2065 Government Money Market Fund Principal LifeTime Hybrid 2070 Fund Principal LifeTime 2070 Fund <div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Principal Funds, Inc.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Supplement dated June 17, 2024</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">to the Prospectus and Statement of Additional Information </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">both dated March 1, 2024</span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">(as previously supplemented)</span></div><div style="margin-bottom:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">This supplement updates information currently in the Prospectus and Statement of Additional Information. Please retain this supplement for future reference.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The changes described below are being made to the Prospectus.</span></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SUMMARY FOR INTERNATIONAL FUND I</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">On June 12, 2024, the Fund’s Board of Directors approved a change to the name of the International Fund I. On July 31, 2024, the International Fund I will change its name to the International Equity Fund. On that date, delete all references in this Prospectus to the International Fund I, and replace with International Equity Fund.</span></div> Principal Funds, Inc. 2024-06-17 2024-06-17 2024-03-01 SUMMARY FOR INTERNATIONAL FUND I On July 31, 2024, delete the two paragraphs in the Principal Investment Strategies section in their entirety and replace with the below, with the underlined sentences reflecting the change: <div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities.</span><span style="color:#ff0000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Fund invests primarily in foreign equity securities, including emerging market securities. The Fund typically invests in foreign securities of at least ten countries. The Fund invests in equity securities of small, medium, and large market capitalization companies.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Fund invests in value equity securities, an investment strategy that emphasizes buying equity securities that appear to be undervalued. The Fund also invests in growth equity securities, an investment strategy that emphasizes buying equity securities of companies whose potential for growth of capital and earnings is expected to be above average. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">The Fund uses derivatives to enhance returns and to manage investment risks. A derivative is a financial arrangement, the value of which is derived from, or based on, a traditional security, asset, or market index. Specifically, the Fund uses currency forwards, futures, and options.</span></div> Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities. The Fund invests primarily in foreign equity securities, including emerging market securities. On July 31, 2024, add the following alphabetically under Principal Risks: <div style="margin-bottom:6pt;text-align:justify"><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Derivatives Risk. </span><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Derivatives may not move in the direction anticipated by the portfolio manager. Transactions in derivatives may increase volatility, cause the liquidation of portfolio positions when not advantageous to do so, and result in disproportionate losses that may be substantially greater than a fund’s initial investment.</span></div><div style="margin-bottom:3pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.5pt">Currency Contracts. </span><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Derivatives related to currency contracts involve the specific risk of government action through exchange controls that would restrict the ability of the fund to deliver or receive currency.</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.5pt">Forward Contracts, Futures, and Swaps. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Forward contracts, futures, and swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the fund and the price of the forward contract, future, or swap; possible lack of a liquid secondary market for a forward contract, future, or swap and the resulting inability to close a forward contract, future, or swap when desired; counterparty risk; and if the fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.</span></div><div style="margin-bottom:12pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.15pt">Options. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Options involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the options; counterparty risk; difference in trading hours for the options markets and the markets for the underlying securities (rate movements can take place in the underlying markets that cannot be reflected in the options markets); and an insufficient liquid secondary market for particular options.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">On July 31, 2024, delete the </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investment Advisor</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">and Sub-Advisor and Portfolio Managers</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">sections, and replace with the following:</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investment Advisor and Portfolio Managers</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Principal Global Investors, LLC</span></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Paul H. Blankenhagen (since 2024), Portfolio Manager</span></div><div style="margin-bottom:6pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">George Maris (since 2024), Portfolio Manager</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:8pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">ADDITIONAL INFORMATION ABOUT INVESTMENT STRATEGIES AND RISKS</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">On July 31, 2024, in the</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Strategy and Risk Table</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span>for the International Fund I (which will be amended to read International Equity, effective July 31, 2024), add an “X” in the row for Derivatives. <span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.5pt">Currency Contracts. </span><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Derivatives related to currency contracts involve the specific risk of government action through exchange controls that would restrict the ability of the fund to deliver or receive currency.</span> <span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.5pt">Forward Contracts, Futures, and Swaps. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Forward contracts, futures, and swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the fund and the price of the forward contract, future, or swap; possible lack of a liquid secondary market for a forward contract, future, or swap and the resulting inability to close a forward contract, future, or swap when desired; counterparty risk; and if the fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.</span> <span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:14.15pt">Options. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Options involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the options; counterparty risk; difference in trading hours for the options markets and the markets for the underlying securities (rate movements can take place in the underlying markets that cannot be reflected in the options markets); and an insufficient liquid secondary market for particular options.</span><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">On July 31, 2024, delete the </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investment Advisor</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">and Sub-Advisor and Portfolio Managers</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">sections, and replace with the following:</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investment Advisor and Portfolio Managers</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Principal Global Investors, LLC</span></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Paul H. Blankenhagen (since 2024), Portfolio Manager</span></div><div style="margin-bottom:6pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">George Maris (since 2024), Portfolio Manager</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:8pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">ADDITIONAL INFORMATION ABOUT INVESTMENT STRATEGIES AND RISKS</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">On July 31, 2024, in the</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Strategy and Risk Table</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span>for the International Fund I (which will be amended to read International Equity, effective July 31, 2024), add an “X” in the row for Derivatives.