the put provider will be unable to honor
the put feature (purchase the security). Finally, short-term municipal or tax-exempt structured
products may present tax issues not presented by investments in other short-term municipal or tax-exempt securities. These issues might be resolved in a manner adverse to the Fund.
Mortgage-Related and Other Asset-Backed Securities Risk. Mortgage-related and asset-backed securities, including certain municipal housing authority obligations, differ from conventional debt securities and are subject to certain
additional risks because principal is paid back over the life of the security rather than at
maturity. The value of these securities will be influenced by the factors affecting the housing
market and the assets underlying such securities. As a result, during periods of declining asset
values, difficult or frozen credit markets, significant changes in interest rates, or deteriorating
economic conditions, mortgage-related and asset-backed securities may decline in value, face
valuation difficulties, become more volatile and/or become illiquid. These securities are also
subject to prepayment and call risk. In periods of either rising or declining interest rates, the Fund may be subject to contraction risk which is the risk that borrowers will increase the rate at which they prepay the maturity
value of mortgages and other obligations. When mortgages and other obligations are prepaid and
when securities are called, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected
capital loss and/or a decrease in the amount of dividend and yield. In either periods of rising
or declining interest rates, the Fund may be subject to extension risk which is the risk that the expected maturity of an obligation will lengthen in duration due to a decrease in prepayments. As a result, in certain
interest rate environments, the Fund may exhibit additional volatility. Collateralized mortgage
obligations (CMOs), interest-only (IOs) and principal-only (POs) stripped mortgage-backed securities are more volatile and may be subject to a higher risk of non-payment than other mortgage related securities.
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. There is no guarantee that all of the Fund’s income from municipal investments will remain exempt from
federal or state or local income taxes. 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 or there may be unfavorable changes in tax laws or
noncompliant conduct of a securities issuer that may cause income from all or certain municipal securities to be taxable. In order to pay tax-exempt interest, tax-exempt securities must meet certain legal requirements. Failure to
meet such requirements may cause the interest received and distributed by the Fund to
shareholders to be taxable. If the Fund fails to meet the requirements necessary to pay out exempt-interest dividends to its shareholders, the income distributions resulting from all of its investments, including its
municipal securities, may be subject to federal income tax when received by shareholders.
In addition, future laws, regulations, rulings or court decisions may cause interest on municipal securities
to be subject, directly or indirectly, to U.S. federal income taxation or interest on state
municipal securities to be subject to state or local income taxation, or the value of state municipal securities to be subject to state or local intangible personal property tax, or may otherwise prevent the Fund from realizing
the full current benefit of the tax-exempt status of such securities. Any such change could also
affect the market price of such securities, and thus the value of an investment in the Fund.
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.