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Index performance does not represent the fund's performance. It is not possible to invest directly in an index.

Exchange Traded Funds (ETFs) are bought and sold through exchange trading at market price (not NAV), and are not individually redeemed from the fund. Shares may trade at a premium or discount to their NAV in the secondary market. Brokerage commissions will reduce returns.

This fund is not actively managed and the portfolio managers do not attempt to take defensive positions under any market conditions, including declining markets. The portfolio managers also do not generally add or remove a security from the fund until such security is similarly added or removed from the underlying index. Therefore, the fund may hold an underperforming security or not hold an outperforming security until the underlying index reacts. This may result in underperformance compared to the market generally. In addition, there is no assurance that the underlying index will be determined, composed or calculated accurately. While the index provider provides descriptions of what the underlying index is designed to achieve, the index provider does not guarantee the quality, accuracy or completeness of data in respect of its indices, and does not guarantee that the underlying index will be in line with the described index methodology. Gains, losses or costs to the fund caused by errors in the underlying index may therefore be borne by the fund and its shareholders.

Historically, mid-cap stocks have been more volatile than the stock of larger, more-established companies. Smaller companies may have limited resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies.

The gross expense ratio is the fund's total annual operating costs, expressed as a percentage of the fund's average net assets for a given time period. It is gross of any fee waivers or expense reimbursement. The net expense ratio is the expense ratio after the application of any waivers or reimbursement. This is the actual ratio that investors paid during the fund's most recent fiscal year. Please see the prospectus for more information.

Brokerage Services are provided by American Century Brokerage, a division of American Century Investment Services, Inc., registered broker/dealer, member FINRASIPC.

iSTOXX® American Century® USA Quality Growth Index

iSTOXX® American Century® USA Quality Growth Index is a systematic, rules-based proprietary index that is owned and calculated by STOXX® based on the STOXX® 900 Index. The underlying index aims to dynamically allocate to companies that exhibit higher growth and quality characteristics relative to their peers. The STOXX® 900 Index covers the 900 largest U.S. companies by market capitalization. It is not possible to invest directly in an index. STOXX® and iSTOXX® are registered trademarks of STOXX Ltd.

Russell 1000® Growth Index

Measures the performance of those Russell 1000 Index companies (the 1,000 largest publicly traded U.S. companies, based on total market capitalization) with higher price-to-book ratios and higher forecasted growth values.

Closing Price: The price of the last reported trade on the fund's primary exchange.

Bid Ask Midpoint: The midpoint between the highest bid and the lowest offer on the primary listing exchange, as of the time that the Fund's NAV is calculated, generally around 4 p.m. (Eastern time).

Premium Discount: A premium is the amount that the fund is trading above the reported NAV, expressed as a percentage of the NAV. A discount is the amount that the fund is trading below the reported NAV, expressed as a percentage of the NAV.

ETF Market Performance (Inception to Date): The fund's per share Net Asset Value (NAV) is the value of one share of the fund. Market Price is determined by using the midpoint between the highest bid and the lowest offer on the primary stock exchange on which the shares of the fund are listed for trading, as of the time that the fund's NAV is calculated. The NAV Return is based on the NAV of the fund, and the Market Price Return is based on the market price per share of the fund. Since shares of the fund did not trade in the secondary market until after the fund's inception, for the period from inception to the first day of secondary market trading in shares of the fund, the NAV of the fund is used as a proxy for the Market Price to calculate market returns. Market Price and NAV returns assume that dividends and capital gain distributions have been reinvested in the fund at Market Price and NAV, respectively.

Weighted Average Market Cap: The weighted average market value of a company's outstanding shares.

Price/Earnings Ratio: The price per share divided by earnings per share.

Price/Book Ratio: The price per share divided by book value per share.

Holdings: The number of holdings in the fund excluding cash positions and derivatives such as futures and currency forwards.

Investment Blend: Reflects the blend of securities owned by a fund. For example, the percentage of foreign or domestic stocks held by an equity fund or the percentage of corporate and government securities owned by a bond fund. The U.S./Foreign Convertibles grouping includes Convertible Bonds, Equity Linked Securities and Convertible Preferred securities.

Sector Weights: This value represents the sectors included in the portfolio on a percent of assets basis.

Top Holdings: This value represents the top holdings included in the portfolio on a percent of assets basis. Holding weights are rounded to the nearest whole number, which may result in the display of less than ten holdings. Holdings are subject to change without notice. Shares are units of ownership interest in a corporation or financial asset that provide for an equal distribution in any profits, if any are declared, in the form of dividends. In the context of debt instruments, principal can refer to the face value, or par value, of a bond—that is, the actual amount listed on the bond itself. American Century Investments publishes this listing of identities and quantities of each position held by the fund on each business day, before commencement of trading. Securities are reported at market value. The portfolio data and its presentation here may differ from the complete schedules of investments in regulatory filings due to differing accounting and reporting requirements.

Countries: This value represents the countries included in the portfolio on a percent of assets basis.

Regions: This value represents the regions of the country represented by the securities included in the portfolio on a percent of assets basis.

For detailed descriptions of indices or investing terms referenced above, refer to our glossary.

©2023 Morningstar, Inc. All Rights Reserved. Certain 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.

The STOXX® Index is the intellectual property (including registered trademarks) of STOXX Limited, Zurich, Switzerland ("STOXX"), Deutsche Börse Group or their licensors, which is used under license. The fund is neither sponsored nor promoted, distributed or in any other manner supported by STOXX, Deutsche Börse Group or their licensors, research partners or data providers and STOXX, Deutsche Börse Group and their licensors, research partners or data providers do not give any warranty, and exclude any liability (whether in negligence or otherwise) with respect thereto generally or specifically in relation to any errors, omissions or interruptions in the STOXX® Index or its data.

The Russell 1000® Index is a trademark/service mark of the Frank Russell Company. Russell® is trademark of the Frank Russell Company.

Exchange Traded Funds (ETFs): Foreside Fund Services, LLC - Distributor, not affiliated with American Century Investments Services, Inc.