Seeks safety of principal and high current income that is exempt from federal income tax.
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.
Calendar Year Returns
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.
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