The fund pursues its income objective by investing primarily in income-producing securities (such as debt securities, preferred stocks, high dividend-bearing common shares, common and preferred shares of closed-end investment companies). It will invest in shares of closed-end funds and convertible securities of large, small and mid-sized companies. The fund will invest only in securities of companies with market capitalizations of more than $500 million, except that the fund may invest in closed-end funds with market capitalizations of less than that amount.

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AAIIX

The fund primarily invests in a broad range of debt securities. The debt securities in which the fund invests may be of any maturity or credit quality, including high yield, high risk bonds, notes, debentures and other debt obligations commonly known as "junk bonds." At the time of purchase, these high-yield securities are rated below BBB- by S&P, or Baa3 by Moody's, or unrated but considered to be of comparable quality by the Adviser.

AAINX

Under normal market conditions, the fund invests at least 80% of its net assets (plus the amount of any borrowing for investment purposes) in municipal bonds, the income of which is exempt from federal income taxation. It may count securities that generate income subject to the alternative minimum tax toward the 80% investment requirement.

AAMBX

The investment seeks to earn the highest level of current income exempt from both federal income tax and State of Arizona personal income tax that is available without assuming what the Adviser considers to be undue risk. The fund principally invests in high-yielding, predominantly investment grade municipal securities. It invests at least 80% of its net assets in municipal securities that pay interest that is exempt from federal income tax.

AAZAX

The investment seeks a high level of current income that is exempt from federal income taxes. The fund invests at least 80% of the value of its net assets, plus any borrowings for investment purposes, in investment grade fixed income securities that qualify as tax-exempt municipal obligations. Tax-exempt municipal obligations include municipal obligations that pay interest that is free from U.S. federal income tax. These obligations are issued by states, U.S. territories and their political subdivisions, such as counties, cities and towns.

ABEIX

The portfolio managers will maintain at least 80% of the fund's net assets in high-yield corporate bonds and other debt instruments. The remaining assets may be invested in common stocks or other equity-related securities. Up to 40% of the fund's total assets may be invested in fixed-income obligations of foreign issuers. It may invest up to 20% of its assets in short-term money market instruments and U.S. government securities. The fund has no average maturity limitations, but it typically invests in intermediate-term and long-term debt securities.

ABHIX

The fund invests in municipal and other debt securities with an emphasis on high-yield securities. Under normal market conditions, the portfolio managers invest at least 80% of the fund's net assets in municipal securities with interest payments exempt from federal income tax. Some of these investments in municipal securities are not necessarily exempt from the federal alternative minimum tax.

ABHYX

The investment seeks to earn the highest level of current income, exempt from federal taxation, that is available consistent with what the Adviser considers to be an appropriate level of risk. The fund pursues its objective by investing principally in high-yielding municipal securities of any credit quality that (i) score highly on the Adviser's environmental, social and governance ("ESG") criteria and (ii) are deemed by the Adviser to have an environmental or social impact in underserved or low socio-economic communities. The fund invests at least 80% of its net assets in municipal securities that pay interest that is exempt from federal income tax.

ABIMX

The investment seeks to provide as high a level of current income as is consistent with the preservation of capital. The fund invests at least 80% of its assets in bonds and other debt securities, which may be represented by other investment instruments, including derivatives. It invests at least 60% of its assets in debt securities rated A3 or better or A- or better by Nationally Recognized Statistical Ratings Organizations designated by the fund’s investment adviser, or in debt securities that are unrated but determined to be of equivalent quality by the fund’s investment adviser, including U.S. government securities, money market instruments or cash.

ABNDX

The fund invests at least 80% of its assets in bonds and other debt securities, with a focus on investment-grade securities rated A3 or better. It also includes investments in U.S. government securities, money market instruments, and cash equivalents.

ABNFX

The investment seeks to maximize long-term total return. The fund invests at least 80% of its net assets in fixed-income securities. It invests in readily marketable fixed-income securities with a range of maturities from short- to long-term and relatively attractive yields that do not involve undue risk of loss of capital. It may invest up to 25% of its net assets in below investment grade bonds. The fund may use leverage for investment purposes.

ABQUX

The fund invests principally in high-yielding municipal securities that may be non-investment grade or investment grade. It normally invests at least 80% of its net assets in municipal securities that pay interest that is exempt from federal income tax. These securities may pay interest that is subject to the AMT for certain taxpayers. The fund may invest without limit in lower-rated securities.

ABTYX

Under normal market conditions, the fund invests at least 80% of its net assets in high- and medium-grade, non-money market debt securities. It invests most of its assets in investment-grade securities. The weighted average maturity of the fund's portfolio must be three and one-half years or longer.

ACBPX

The investment seeks current income with preservation of capital; capital appreciation is a secondary objective. The fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in corporate bonds, and in derivatives and other instruments that have economic characteristics similar to such securities. At least 65% of the fund's net assets must be, and up to 100% may be, invested in investment grade securities; securities issued or guaranteed by the U.S. government, its agencies or instrumentalities; commercial paper rated Prime by Moody's or A- or higher by S&P; and cash and cash equivalents.

ACCBX

The fund invests at least 65% of its assets in investment-grade, non-money market debt securities. It may not invest more than 35% of its assets in high-yield securities. The fund may invest in non-dollar denominated debt securities. The weighted average maturity of the fund's portfolio must be 3½ years or longer.

ACCNX

The fund invests primarily in high quality debt securities and other debt instruments supporting low- and moderate-income (“LMI”) individuals and communities and underserved areas of the United States. It seeks a return consisting of current income and capital appreciation that is competitive relative to the fund's benchmark index. The fund is non-diversified.

ACCSX

The investment seeks to provide current income and capital growth.  The fund invests primarily in a portfolio of debt securities including corporate bonds and debentures (including high yield bonds commonly known as "junk bonds"), bank loans, convertible and preferred securities, credit default swaps and other debt instruments and derivatives that the fund's investment adviser believes have debt-like characteristics. It invests in both domestic and foreign debt securities. The principal types of derivatives in which the fund may invest are credit default swaps, interest rate swaps, total return swaps, futures and options.

ACFIX

The investment seeks high current income consistent with preservation of capital. The fund pursues its objective by investing, under normal circumstances, at least 80% of its net assets in income-producing securities. It also normally invests at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. government securities. The fund normally invests at least 65% of its total assets in U.S. dollar denominated securities.

ACGYX

The investment seeks high current income. The fund invests, under normal circumstances, at least 80% of its net assets in U.S. corporate bonds. It may also invest in U.S. government securities (other than U.S. government securities that are mortgage-backed or asset-backed securities), repurchase agreements and forward contracts relating to U.S. government securities. The fund has the flexibility to invest in long- and short-term fixed-income securities.

ACISX

Under normal market conditions, the fund invests at least 80% of its net assets in inflation-adjusted bonds. It also may invest in derivative instruments such as futures contracts and swap agreements (including, but not limited to, inflation swap agreements and credit default swap agreements), bank loans, securities backed by mortgages or other assets and collateralized debt obligations. The fund may invest in U.S. Treasury futures, inflation swap agreements and credit default swap agreements to manage duration, inflation and credit exposure.

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