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Disclosures

Holding, portfolio and sector allocations are subject to change.

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

Investor shares are bought and sold at market price (not NAV) and are not individually redeemed from the Fund. Ordinary brokerage commissions apply.

The market price used to calculate the Market Price Return is the midpoint between the highest bid and the lowest offer on the exchange on which the shares of the Fund are listed for trading, as of the time that the Fund's NAV is calculated. If you trade your shares at another time, your return may differ.

Where gross and net expense ratios differ, the investment adviser has contractually agreed to limit the investment option's expenses. Differences also may be due to the investment adviser's decision to waive (through the same dates) certain expenses that would normally be payable by the fund. The net expense figure reflects the impact of any limits or waivers. Returns displayed are based on net total investment expense.

Performance data quoted represents past performance. Past performance is no guarantee of future results and investment returns, and principal value of the Fund will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Current performance may be higher or lower than the performance quoted.

Investors should carefully consider a fund’s investment objectives, risks, charges, and expenses prior to investing.

© 2020 Morningstar, Inc. All Rights Reserved. Part of the data 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.

The Morningstar Style Box is a nine-square grid that provides a graphical representation of the "investment style" of a fund. The Equity style box classifies securities by size along the vertical axis and by value and growth characteristics along the horizontal axis. The model for the fixed-income style box is based on the two pillars of fixed-incomeperformance: interest-rate sensitivity and credit quality. The three interest sensitivity groups are limited, moderate and extensive and the three credit quality groups are high, medium and low. These groupings display a portfolio’s effective duration and third party credit ratings to provide an overall representation of the fund’s risk orientation given the sensitivity to interest rate and credit rating of bonds in the portfolio.

The Morningstar Rating^TM 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.

Index

The Principal Millennials Index ETF seeks to track the Nasdaq Global Millennial Opportunity Index, a Nasdaq-licensed index based on Principal’s intellectual property. The index provides exposure to global equity securities of companies that are impacted by the spending and lifestyle activities of the Millennial generation.​

Risks

Asset allocation and diversification do not ensure a profit or protect against a loss. Investing in ETFs involves risk, including possible loss of principal. ETFs are subject to risk similar to those of stocks, including those regarding short-selling and margin account maintenance.

Equity investments involve greater risk, including higher volatility, than fixed-income investment options.

International and global investing involves greater risks such as currency fluctuations, political/social instability and differing accounting standards.

Footnote

**During extraordinary market conditions, the index provider may delay the scheduled rebalancing of the index until a future date when conditions have changed.