Additionally, asset-backed,
mortgage-related and mortgage-backed securities are subject to risks associated with their
structure and the nature of the assets underlying the securities and the servicing of those
assets. Certain asset-backed, mortgage-related and mortgage-backed securities may face valuation
difficulties and may be less liquid than other types of asset-backed, mortgage-related and mortgage-backed securities, or debt securities.
Debt Securities and Other Callable Securities Risk. As part of its main investment strategy, the Fund invests in debt securities. The issuers of these securities and other
callable securities may be able to repay principal in advance, especially when interest rates
fall. Changes in prepayment rates can affect the return on investment and yield of these securities. When debt obligations are prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield.
The Fund also may fail to recover additional amounts (i.e., premiums) paid for securities with
higher interest rates, resulting in an unexpected capital loss.
Taxability Risk. The Fund’s investments in
municipal securities rely on the opinion of the issuer’s bond counsel that the interest
paid on those securities will not be subject to federal income tax. Tax opinions are generally
provided at the time the municipal security is initially issued. However, after the Fund buys a
security, the Internal Revenue Service may determine that a bond issued as tax-exempt should in fact be taxable and the Fund’s dividends with respect to that bond might be subject to federal income tax.
Municipal Housing Authority Obligations Risk. The Fund may invest more than 25% of its total assets in municipal housing authority obligations. As a result, the Fund could be more susceptible to developments which affect those
obligations.
Ultra-Short Fund Risk. The Fund is not a money market fund. Therefore, the Fund does not attempt to maintain a stable net asset value and is not subject to the rules that govern the diversity, quality, maturity, liquidity and other
features of securities that money market funds may purchase. Under normal conditions, the
Fund’s investment may be more susceptible than a money market fund to interest rate risk, valuation risk, credit risk and other risks relevant to the Fund’s investments. Unlike certain money market funds, the
Fund’s net asset value per share will fluctuate.
High Yield Securities Risk. The Fund may invest in securities and instruments of municipal issuers that are highly leveraged, less creditworthy or financially distressed. These
investments (known as junk bonds) are considered to be speculative and are subject to greater
risk of loss, greater sensitivity to economic changes, valuation difficulties and potential illiquidity.
In recent years, there has been a broad trend of weaker or less restrictive covenant protections in the high yield market. Among other things, under such weaker or less
restrictive covenants, borrowers might be able to exercise more flexibility with respect to
certain activities than borrowers who are subject to stronger or more protective covenants. For example, borrowers might be able to incur more debt, including secured debt, return more capital to shareholders, remove or reduce assets
that are designated as collateral securing high yield securities, increase the claims against
assets that are permitted against collateral securing high yield securities or otherwise manage their business in ways that could impact creditors negatively. In addition, certain privately held borrowers might be
permitted to file less
frequent, less detailed or less timely financial reporting or other information, which could negatively impact
the value of the high yield securities issued by such borrowers.
Each of these factors might negatively impact the high yield instruments held by the Fund. No active trading market may exist for some instruments and certain investments
may be subject to restrictions on resale. The inability to dispose of the Fund’s securities
and other investments in a timely fashion could result in losses to the Fund. Because some instruments may have a more limited secondary market, liquidity and valuation risk may be more pronounced for the Fund.
When instruments are prepaid, the Fund may have to reinvest in instruments with a lower yield or
fail to recover additional amounts (i.e., premiums) paid for these instruments, resulting in an
unexpected capital loss and/or a decrease in the amount of dividends and yield.
Zero-Coupon Bond Risk. The market value of a zero-coupon bond is generally more volatile than the market value of other fixed income securities with similar maturities that pay interest periodically. In addition, federal income tax law
requires that the holder of a zero-coupon bond accrue a portion of the discount at which the bond
was purchased as taxable income each year. The Fund may consequently have to dispose of portfolio
securities under disadvantageous circumstances to generate cash to satisfy its requirement as a regulated investment company to distribute all of its net income (including non-cash income attributable to zero-coupon
securities). These actions may reduce the assets to which the Fund’s expenses could
otherwise be allocated and may reduce the Fund’s rate of return.
Restricted Securities Risk. Restricted securities are
securities that cannot be offered for public resale unless registered under the applicable
securities laws or that have a contractual restriction that prohibits or limits their resale. Restricted securities include private placement securities that have not been registered under the applicable securities laws, such
as Rule 144A securities, and securities of U.S. and non-U.S. issuers that are issued pursuant to
Regulation S. Private placements are generally subject to strict restrictions on resale. Restricted
securities may not be listed on an exchange and may have no active trading market. Restricted
securities may be illiquid. The Fund may be unable to sell a restricted security on short notice
or may be able to sell them only at a price below current value. It may be more difficult to
determine a market value for a restricted security. Also, the Fund may get only limited
information about the issuer of a restricted security, so it may be less able to predict a loss.
In addition, if Fund management receives material non-public information about the issuer, the Fund may as a result be unable to sell the securities. Certain restricted securities may involve a high degree of
business and financial risk and may result in substantial losses.
Auction Rate Securities Risk. The auction rate municipal
securities the Fund will purchase will typically have a long-term nominal maturity for which the
interest rate is regularly reset through a “Dutch” auction. The interest rate set by the auction is the lowest interest rate that covers all securities offered for sale. While this process is designed to permit
auction rate securities to be traded at par value, there is a risk that an auction will fail due
to insufficient demand for the securities, which may adversely affect the liquidity and price of auction rate securities. Moreover, between auctions, there may be no