The advisor has agreed to waive a portion of the fund's management fee, expects this waiver to continue until November 30, 2024, and cannot terminate it prior to such date without the approval of the Board of Directors. Review the annual or semiannual report for the most current information.

The year in the fund name refers to the approximate year when investors in the fund plan to retire or start using their money.

Each One Choice® Target Date Portfolio seeks the highest total return consistent with its asset mix. As the target year approaches, the asset mix and weightings are adjusted to be more conservative, generally by decreasing the allocation to stocks and increasing the allocation to bonds and cash equivalents.

Although the target date portfolios are managed for investors on a projected retirement date time frame, the allocation strategy does not guarantee that investors' retirement goals will be met. The principal value of the fund is not guaranteed at any time, including at the target date.

The value and/or returns of a portfolio will fluctuate with market and economic conditions. The fund is subject to the risks of the underlying funds in which it may invest. International investing involves special risks such as political instability and currency fluctuations. Investing in fixed income securities entails interest rate, credit and price risks. When interest rates rise, bond prices generally fall and increase when interest rates fall. Historically, small-cap stocks have been more volatile than the stocks of larger, more established companies.

In addition to the risks inherent in the asset classes of the underlying funds, the fund also is subject to asset allocation risk, which is the chance that the selection of underlying funds and the allocation of fund assets will cause the fund to underperform other funds with a similar investment objective.

For further details on all risks, please refer to the fund's prospectus.

The value and/or returns of a portfolio will fluctuate with market and economic conditions.

The performance of the portfolios is dependent on the performance of their underlying American Century Investments' funds and will assume the risks associated with these funds. The risks will vary according to each portfolio's asset allocation, and a fund with a later target date is expected to be more volatile than one with an earlier target date.

International investing involves special risks, such as political instability and currency fluctuations.

Investing in fixed income securities entails interest rate, credit and price risks.

Historically, small- and/or 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.

Generally, as interest rates rise, the value of the bonds held in the fund will decline. The opposite is true when interest rates decline.

Please see the prospectus for details about sales charges.

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.

Investor Class Shares: Minimum initial investment is $1,000 for IRA and CESA accounts, and $2,500 for non-retirement accounts, but these minimums are waived with an initial investment of at least $500 per account and automatic investments of at least $100 per month. Non-Retirement Accounts: If your account balance falls below the minimum, or if you cancel your automatic monthly investment plan prior to reaching the minimum, American Century Investments may redeem the account and send the proceeds to you. Prior to doing so, we will notify you and give you 90 days to meet the minimum or reinstate your automatic monthly investment plan.

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