CMPIX | Principal Core Fixed Income Fund | Principal Asset Management

CMPIX

Principal Core Fixed Income Fund

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Prospectus

Overview

Performance

As of 12/31/2025

YTD

6.75%

1-year

6.75%

3-year

4.44%

5-year

-0.59%

10-year

2.19%

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 01/06/2026 unless indicated otherwise

Fund ticker

CMPIX

CUSIP

74254V638

Benchmark

Bloomberg U.S. Aggregate Bond Index

NAV

$8.71

Total fund assets

$10.68B

Dividend frequency

Daily

Minimum investment

$1,000.00

Inception date

12/15/1975

Morningstar category

Intermediate Core Bond

Investment approach

The investment seeks to provide a high level of current income consistent with preservation of capital. The fund invests primarily in a diversified pool of investment-grade fixed-income securities, which includes corporate securities, U.S. government securities, asset-backed securities and mortgage-backed securities (securitized products), bank loans, and foreign securities.

Performance & expenses

As of 12/31/2025

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	Excluding sales charge	-0.27%	0.86%	6.75%	6.75%	4.44%	-0.59%	2.19%	6.42%	—
Including sales charge	-2.50%	-1.41%	4.39%	4.39%	3.66%	-1.05%	1.96%	6.32%	—
Benchmark performance Bloomberg U.S. Aggregate Bond Index	-0.15%	1.10%	7.30%	7.30%	4.66%	-0.36%	—	—	—
Morningstar category average	—	—	—	—	—	—	—	—	—
Morningstar percentile rankings	—	—	—	86	78	71	36	—	—
# of funds in category	459	457	444	439	414	371	275	—	414
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.	—	—	—	—				—

30-Day SEC yield

Unsubsidized as of 11/30/2025

3.61%

30-Day SEC yield

Subsidized as of 11/30/2025

3.61%

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	Excluding sales charge	-0.27%	0.86%	6.75%	6.75%	4.44%	-0.59%	2.19%	6.42%	—
Including sales charge	-2.50%	-1.41%	4.39%	4.39%	3.66%	-1.05%	1.96%	6.32%	—
Benchmark performance Bloomberg U.S. Aggregate Bond Index	-0.15%	1.10%	7.30%	7.30%	4.66%	-0.36%	—	—	—
Morningstar category average	—	—	—	—	—	—	—	—	—

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	2025	2024	2023	2022	2021
Excluding sales charge	6.75%	1.23%	5.42%	-13.01%	-2.03%
Including sales charge	4.39%	-1.07%	3.09%	-14.99%	-4.26%
Morningstar category average Intermediate Core Bond	5.63%	1.68%	5.59%	-13.32%	-1.48%

Date	Type	Dollar per share
12/31/2025	Income	0.0260
11/28/2025	Income	0.0226
10/31/2025	Income	0.0263
09/30/2025	Income	0.0235
08/29/2025	Income	0.0259
07/31/2025	Income	0.0252
06/30/2025	Income	0.0233
05/30/2025	Income	0.0255
04/30/2025	Income	0.0238
03/31/2025	Income	0.0227
02/28/2025	Income	0.0216
01/31/2025	Income	0.0247
12/31/2024	Income	0.0239
11/29/2024	Income	0.0238
10/31/2024	Income	0.0240
09/30/2024	Income	0.0212
08/30/2024	Income	0.0248
07/31/2024	Income	0.0236
06/28/2024	Income	0.0211
05/31/2024	Income	0.0246
04/30/2024	Income	0.0223
03/28/2024	Income	0.0226
02/29/2024	Income	0.0207
01/31/2024	Income	0.0215
12/29/2023	Income	0.0225
11/30/2023	Income	0.0210
10/31/2023	Income	0.0217
09/29/2023	Income	0.0220
08/31/2023	Income	0.0211
07/31/2023	Income	0.0196
06/30/2023	Income	0.0216
05/31/2023	Income	0.0206
04/28/2023	Income	0.0183
03/31/2023	Income	0.0215
02/28/2023	Income	0.0180
01/31/2023	Income	0.0184

Ratings

Morningstar ratings

Morningstar ratings disclosure

Overall Morningstar Rating™ as of 11/30/25 among Intermediate Core Bond 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

414 funds

5-year

371 funds

10-year

275 funds

Overall

414 funds

3 year | 414 funds

5 year | 371 funds

10 year | 275 funds

Overall | 414 funds

Holdings

Top 10

as of 11/30/2025

% of Assets

1. Principal Government Money Mar

1.21%

2. AbbVie Inc

0.59%

3. Biogen Inc

0.56%

4. Waste Connections Inc

0.52%

5. Truist Bank

0.49%

6. American Tower Corp

0.49%

7. Ryder System Inc

0.48%

8. PPL Electric Utilities Corp

0.48%

9. PNC Bank NA

0.47%

10. Citigroup Inc

0.46%

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

Average effective maturity

as of 12/31/2025

7.98

# of holdings

as of 12/31/2025

477

Average weighted coupon

as of 12/31/2025

3.82%

Average yield to maturity

as of 12/31/2025

4.53%

Turnover ratio

as of 10/31/2025

13.40%

Weighted avg duration

as of 12/31/2025

5.78

Weighted avg life to worst

as of 12/31/2025

7.87

Yield to worst

as of 12/31/2025

4.52%

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.

Fixed‐income investment options are subject to interest rate risk, and their value will decline as interest rates rise.

NOT FDIC INSURED - MAY LOSE VALUE - NO BANK GUARANTEE

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.

The Bloomberg US Aggregate Bond Index is a broad-based flagship benchmark that measures the investment grade, US dollar-denominated, fixed-rate taxable bond market. The index includes Treasuries, government-related and corporate securities, MBS (agency fixed-rate pass-throughs), ABS and CMBS (agency and non-agency). (Future Ticker: I00001US)

© 2026 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 refer to the Morningstar shareholder disclosures .

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.