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Seeks long-term total return.

/sd/customer/portfolio_json 1.800.345.2021

Data reflects past performance for Investor Class shares, assumes reinvestment of dividends and capital gains and is no guarantee of future results. Current performance may be higher or lower than data shown. Investment return and principal value fluctuates. Redemption value may be more or less than original cost. Obtain performance data current to the most recent month end. For additional share class information, consult the prospectus.

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A
Average annual total returns illustrate the annual compounded returns that would have produced the cumulative total return if the fund's performance had remained constant throughout the period indicated. Returns for periods less than one year are not annualized.
C

Expense ratios provided are the funds' total annual operating expense ratios, gross of any fee waivers or expense reimbursements. Expense ratios are as of the funds' most current prospectus.

Returns or yields for the fund would have been lower if .12% of the management fee had not been waived. The advisor expects this waiver to continue until July 31, 2017, 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.

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30-Day SEC Yield (Subsidized/Unsubsidized): Represents net investment income earned by a fund over a 30-day period, expressed as an annual percentage rate based on the fund's share price at the end of the 30-day period. Subsidized yield reflects fee waivers and/or expense reimbursements during the period. Without waivers and/or reimbursements, yields would be reduced. Unsubsidized yield does not adjust for any fee waivers and/or expense reimbursements in effect.

Calendar Year Returns

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Risk and Returns

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The value and/or returns of a portfolio will fluctuate with market and economic conditions. Investments in fixed income securities are subject to the risks associated with debt securities including credit, price and interest rate risk. Generally, as interest rates rise, the value of the securities held in the fund will decline. The opposite is true when interest rates decline. International investing involves special risks, such as political instability and currency fluctuations.

Diversification does not assure a profit nor does it protect against loss of principal.

W2 If your account falls below the minimum balance, you will be notified and given 90 days to meet the minimum. If the deadline is not met, American Century Investments may redeem the shares in the account and send the proceeds to the address of record.

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

Source: Bloomberg Index Services Ltd

Quick Facts

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Distribution