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. Extraordinary performance is attributable in part to unusually favorable market conditions and may not be repeated or consistently achieved in the future.
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 a portion of the management fee had not been waived. Review the annual or semiannual report for the most current information.
Daily Liquidity: The percentage of the fund's assets invested in cash, direct obligations of the U.S. government, securities that will mature or are subject to a demand feature that is exercisable and payable within one business day, and receivables scheduled to be paid within one business day.
Weekly Liquidity: The percentage of the fund's assets invested in daily liquid assets, government agency discount notes with remaining maturities of 60 days or less, securities that will mature or are subject to a demand feature that is exercisable and payable within five business days, and receivables scheduled to be paid within five business days.
Market Based NAV (Net Asset Value): The market based price of the fund's portfolio, also known as a "shadow NAV."
Calendar Year Returns
You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1 per share, it cannot guarantee it will do so. An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund's sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.Fund shares are not guaranteed by the U.S. Government. Interest rate changes are among the most significant factors affecting bond return. In a declining interest rate environment, bond prices rise and the fund may generate less income. In a rising interest rate environment, bond prices fall.
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