Top Ten Holdings
Top Ten Holdings: This value represents the top ten holdings included in the portfolio on a percent of assets basis. Equity holdings are grouped to include common shares, depository receipts, rights and warrants issued by the same company. Holdings are rounded to the nearest whole number, which may result in the display of less than ten holdings.
Weighted average maturity (WAM) uses effective maturity to approximate the remaining term to maturity of a fund's investment portfolio, weighted by dollar amount. Generally, the longer a fund's WAM, the more sensitive it is to changes in interest rates.
Quality: Describes the portfolio of the fund in terms of the quality ratings of the securities it holds. Instruments issued by the U.S. Government or one of its agencies are treated as AAA rated. Cash and cash equivalents include payable amounts related to securities purchased but not settled at period end. Credit quality ratings on underlying securities of a fund are obtained from three Nationally Recognized Statistical Rating Organizations ("NRSROs"), Standard & Poor's, Moody's and Fitch. Ratings are converted to the equivalent Standard & Poor's rating category for purposes of presentation. For Investment Grade Municipal funds, each security is assigned the highest rating provided by the NRSROs. For High Yield Municipal funds each security is assigned the lowest rating provided by the NRSROs. A "non-rated" designation is assigned when a public rating is not available for a security. This designation does not necessarily indicate low credit quality. The letter ratings are provided to indicate the credit worthiness of the underlying bonds in the portfolio. Long-term ratings generally range from AAA (highest) to D (lowest). Includes payable amounts related to securities purchased but not settled at period end. Due to rounding, these values may exceed 100%.
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.
Because the fund invests primarily in California municipal securities and securities issued by U.S. territories, its yield and share price will be affected by political and economic developments within the state and territories.
There is no guarantee that all of the fund's income will be exempt from federal or state or local income taxes. The portfolio managers are permitted to invest up to 20% of the fund's assets in debt securities with interest payments that are subject to federal income tax, California state or local income tax and/or the federal alternative minimum tax.Generally, as interest rates rise, the value of the securities held in the fund will decline. The opposite is true when interest rates decline. This fund is not available in all states.
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.
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.