PIFIX | SAM Flexible Income Portfolio | Principal Asset Management

PIFIX

SAM Flexible Income Portfolio

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Prospectus

Overview

Performance

As of 11/30/2025

YTD

9.81%

1-year

7.54%

3-year

8.05%

5-year

3.85%

10-year

4.82%

Returns represent past performance and do not guarantee future results. Share price, principal value, and return will vary and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted.

Overall Morningstar Rating™

As of 11/30/2025

Fund details

as of 12/18/2025 unless indicated otherwise

Fund ticker

PIFIX

CUSIP

74254U192

Benchmark

SAM Flexible Income Blended Index

Extended performance inception date

07/25/1996

NAV

$12.76

Total fund assets

$2.23B

Dividend frequency

Monthly

Minimum investment

—

Inception date

01/16/2007

Morningstar category

Global Conservative Allocation

Investment approach

The investment seeks to provide a high level of total return (consisting of reinvestment of income with some capital appreciation). The Portfolios operate as funds of funds and invest principally in funds and exchange-traded funds ("ETFs") of Principal Funds, Inc. and Principal Exchange-Traded Funds ("underlying funds"). It generally invests: between 55% and 95% of its assets in fixed-income funds, and less than 40% in any one fixed-income fund; between 5% and 45% of its assets in equity funds, and less than 30% in any one equity fund; less than 20% of its assets in specialty funds, and less than 20% in any one specialty fund.

Performance & expenses

As of 11/30/2025

As of 09/30/2025

Month end Quarter end

Name	1 month	3 month	YTD	1-year	3-year	5-year	10-year	Since inception	Overall
Name	1 month	3 month	YTD	1-year	3-year	5-year	10-year	Since inception	Overall	Total return	0.66%	2.81%	9.81%	7.54%	8.05%	3.85%	4.82%	5.71%	—
Benchmark performance SAM Flexible Income Blended Index	0.55%	3.14%	10.40%	8.25%	8.13%	3.06%	4.79%	—	—
Morningstar category average Global Conservative Allocation	0.61%	2.94%	9.57%	7.72%	7.16%	3.30%	4.15%	—	—
Morningstar percentile rankings	—	—	—	36	22	21	20	—	—
# of funds in category	85	85	85	84	82	77	67	—	82
Morningstar rating Morningstar ratings disclosure Morningstar ratings are based on risk-adjusted returns. The Morningstar Rating™ for funds, or "star rating," is calculated for managed products (including mutual funds, variable annuity and variable life subaccounts, exchange-traded funds, closed-end funds, and separate accounts) with at least a three-year history. Exchange traded funds and open-ended mutual funds are considered a single population for comparative purposes. It is calculated based on a Morningstar risk-adjusted return measure that accounts for variation in a managed product's monthly excess performance, placing more emphasis on downward variations and rewarding consistent performance. The top 10% of products in each product category receive 5 stars, the next 22.5% receive 4 stars, the next 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a managed product is derived from a weighted average of the performance figures associated with its three-, five-, and 10-year (if applicable) Morningstar Rating metrics. The weights are: 100% three-year rating for 36-59 months of total returns, 60% five-year rating/40% three-year rating for 60-119 months of total returns, and 50% 10-year rating/30% five-year rating/20% three-year rating for 120 or more months of total returns. While the 10-year overall star rating formula seems to give the most weight to the 10-year period, the most recent three-year period actually has the greatest impact because it is included in all three rating periods. Morningstar ratings do not reflect the inclusion of sales charges. If sales charges were reflected, ratings could be lower.	—	—	—	—				—

Returns shown for periods of less than one year are not annualized.

Index performance information: no deductions for fees, expenses or taxes. Indices are unmanaged and individuals cannot invest directly in an index.

Name	1 month	3 month	YTD	1-year	3-year	5-year	10-year	Since inception	Overall
Name	1 month	3 month	YTD	1-year	3-year	5-year	10-year	Since inception	Overall	Total return	1.54%	3.48%	8.45%	6.50%	9.39%	4.34%	4.89%	5.70%	—
Benchmark performance SAM Flexible Income Blended Index	1.60%	3.38%	8.76%	6.39%	9.48%	3.35%	4.82%	—	—
Morningstar category average Conservative Allocation	1.25%	3.05%	8.01%	5.64%	8.18%	3.38%	3.81%	—	—

Returns shown for periods of less than one year are not annualized.

Index performance information: no deductions for fees, expenses or taxes. Indices are unmanaged and individuals cannot invest directly in an index.

Data	2024	2023	2022	2021	2020
Total return	6.61%	9.40%	-13.18%	6.78%	6.92%
Morningstar category average Global Conservative Allocation	—	—	—	—	—

Date	Type	Dollar per share
12/18/2025	Long Term Capital Gain	0.0942
11/26/2025	Income	0.0252
10/31/2025	Income	0.0243
09/30/2025	Income	0.0239
08/29/2025	Income	0.0234
07/31/2025	Income	0.0229
06/30/2025	Income	0.0222
05/30/2025	Income	0.0222
04/30/2025	Income	0.0227
03/31/2025	Income	0.0219
02/28/2025	Income	0.0216
01/31/2025	Income	0.0221
12/31/2024	Income	0.1347
11/27/2024	Income	0.0229
10/31/2024	Income	0.0201
09/30/2024	Income	0.0201
08/30/2024	Income	0.0207
07/31/2024	Income	0.0224
06/28/2024	Income	0.0213
05/31/2024	Income	0.0220
04/30/2024	Income	0.0224
03/28/2024	Income	0.0216
02/29/2024	Income	0.0215
01/31/2024	Income	0.0201
12/29/2023	Income	0.1460
11/30/2023	Income	0.0201
10/31/2023	Income	0.0195
09/29/2023	Income	0.0179
08/31/2023	Income	0.0170
07/31/2023	Income	0.0162
06/30/2023	Income	0.0164
05/31/2023	Income	0.0165
04/28/2023	Income	0.0156
03/31/2023	Income	0.0162
02/28/2023	Income	0.0158
01/31/2023	Income	0.0160
12/30/2022	Income	0.1029

Ratings

Morningstar ratings

Morningstar ratings disclosure

Overall Morningstar Rating™ as of 11/30/25 among Global Conservative Allocation Funds. Morningstar ratings are based on risk-adjusted returns.

The Morningstar Rating™ for funds, or "star rating," is calculated for managed products (including mutual funds, variable annuity and variable life subaccounts, exchange-traded funds, closed-end funds, and separate accounts) with at least a three-year history. Exchange traded funds and open-ended mutual funds are considered a single population for comparative purposes. It is calculated based on a Morningstar risk-adjusted return measure that accounts for variation in a managed product's monthly excess performance, placing more emphasis on downward variations and rewarding consistent performance. The top 10% of products in each product category receive 5 stars, the next 22.5% receive 4 stars, the next 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a managed product is derived from a weighted average of the performance figures associated with its three-, five-, and 10-year (if applicable) Morningstar Rating metrics. The weights are: 100% three-year rating for 36-59 months of total returns, 60% five-year rating/40% three-year rating for 60-119 months of total returns, and 50% 10-year rating/30% five-year rating/20% three-year rating for 120 or more months of total returns. While the 10-year overall star rating formula seems to give the most weight to the 10-year period, the most recent three-year period actually has the greatest impact because it is included in all three rating periods. Morningstar ratings do not reflect the inclusion of sales charges. If sales charges were reflected, ratings could be lower.

as of 11/30/2025

3-year

82 funds

5-year

77 funds

10-year

67 funds

Overall

82 funds

3 year | 82 funds

5 year | 77 funds

10 year | 67 funds

Overall | 82 funds

Holdings

Top 10

as of 11/30/2025

% of Assets

1. Core Fixed Income Fund

29.59%

2. Finisterre Emerging Markets To

7.47%

3. Principal Government Money Mar

6.51%

4. Bond Market Index Fund

6.46%

5. Principal U.S. Mega-Cap ETF

5.79%

6. Inflation Protection Fund

5.09%

7. Short-Term Income Fund

4.57%

8. Government & High Quality Bond

4.41%

9. High Yield Fund

4.09%

10. Equity Income Fund

3.61%

The holdings listed do not constitute a recommendation to purchase or sell a particular security. Cash and/or derivative positions that are not part of the core investment strategy will not be reflected in the top holdings list.

May not reflect current holdings or allocations.

Portfolio characteristics

# of holdings

as of 11/30/2025

10,772

Turnover ratio

as of 04/30/2025

24.60%

R-squared (3-year)

as of 11/30/2025

—

Sharpe ratio (3-year)

as of 11/30/2025

—

Standard deviation (3-year)

as of 11/30/2025

—

Tracking error (3-year)

as of 11/30/2025

—

May not reflect current holdings or allocations.

Portfolio management

Literature

Investment materials

Portfolio holdings

Disclosures

Principal Funds are distributed by Principal Funds Distributor, Inc. ALPS Distributors, Inc. is the distributor of the Principal ETFs. ALPS Distributors, Inc. and the Principal Funds are not affiliated.

NOT FDIC INSURED - MAY LOSE VALUE - NO BANK GUARANTEE

Asset allocation and diversification does not ensure a profit or protect against a loss. Equity investment options involve greater risk, including heightened volatility, than fixed-income investment options. Fixed-income investments are subject to interest rate risk; as interest rates rise their value will decline. International and global investing involves greater risks such as currency fluctuations, political/social instability and differing accounting standards. These risks are magnified in emerging markets. Fixed-income and asset allocation investment options that invest in mortgage securities are subject to increased risk due to real estate exposure.

Morningstar percentile rankings are based on total returns and do not reflect the inclusion of sales charges. If sales charges were reflected, rankings could be lower.

Performance assumes reinvestment of all dividends and capital gains.

Principal Global Investors is the Investment Adviser of all funds included in the Principal Funds, Inc. Principal Funds are managed by Principal Global Investors, its boutique affiliates, and by many leading sub-advisors.

To obtain a prospectus, download prospectus online or call Customer Service at 1-800-222-5852 . Carefully consider a fund’s objectives, risks, charges, and expenses. The prospectus, or summary prospectus if available, contains this and other information. Please read it carefully before investing.

SAM Flexible Income Blended Index is composed of 5% MSCI EAFE Index, 20% Russell 3000 Index and 75% Bloomberg Aggregate Bond Index.

© 2025 Morningstar, Inc. All rights reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) is not warranted to be accurate, complete, or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information. Past performance is no guarantee of future results.

The Morningstar Medalist Rating™ is the summary expression of Morningstar’s forward-looking analysis of investment strategies as offered via specific vehicles using a rating scale of Gold, Silver, Bronze, Neutral, and Negative. The Medalist Ratings indicate which investments Morningstar believes are likely to outperform a relevant index or peer group average on a risk-adjusted basis over time. Investment products are evaluated on three key pillars (People, Parent, and Process) which, when coupled with a fee assessment, forms the basis for Morningstar’s conviction in those products’ investment merits and determines the Medalist Rating they’re assigned. Pillar ratings take the form of Low, Below Average, Average, Above Average, and High. Pillars may be evaluated via an analyst’s qualitative assessment (either directly to a vehicle the analyst covers or indirectly when the pillar ratings of a covered vehicle are mapped to a related uncovered vehicle) or using algorithmic techniques. Vehicles are sorted by their expected performance into rating groups defined by their Morningstar Category and their active or passive status. When analysts directly cover a vehicle, they assign the three pillar ratings based on their qualitative assessment, subject to the oversight of the Analyst Rating Committee, and monitor and reevaluate them at least every 14 months. When the vehicles are covered either indirectly by analysts or by algorithm, the ratings are assigned monthly. For more detailed information about these ratings, including their methodology, please go to https://shareholders.morningstar.com/investor-relations/governance/Compliance--Disclosure/default.aspx .

The Morningstar Medalist Ratings are not statements of fact, nor are they credit or risk ratings. The Morningstar Medalist Rating (i) should not be used as the sole basis in evaluating an investment product, (ii) involves unknown risks and uncertainties which may cause expectations not to occur or to differ significantly from what was expected, (iii) are not guaranteed to be based on complete or accurate assumptions or models when determined algorithmically, (iv) involve the risk that the return target will not be met due to such things as unforeseen changes in management, technology, economic development, interest rate development, operating and/or material costs, competitive pressure, supervisory law, exchange rate, tax rates, exchange rate changes, and/or changes in political and social conditions, and (v) should not be considered an offer or solicitation to buy or sell the investment product. A change in the fundamental factors underlying the Morningstar Medalist Rating can mean that the rating is subsequently no longer accurate.

The Analyst-Driven % data point displays the weighted percentage of a vehicle’s pillar ratings assigned directly or indirectly by analysts.

The Data Coverage % data point is a summary metric describing the level of data completeness used to generate the overall rating.

These calculated returns reflect the historical performance of the oldest share class of the Fund, adjusted to reflect the fees and expenses of the share class shown. Please see the Fund's prospectus for more information on specific expenses and see the Fund's most recent shareholder report for the actual date of first sale. Expenses are deducted from income earned by the Fund. As a result, dividends and investment results will differ for each share class.