Government Securities
Risk. The Fund invests in securities issued or guaranteed by the U.S. government or its agencies
and instrumentalities (such as securities issued by Ginnie Mae, Fannie Mae, or Freddie Mac). U.S.
government securities are subject to market risk, interest rate risk and credit risk. Securities, such as those issued or guaranteed by Ginnie Mae or the U.S. Treasury, that are backed by the full faith and credit
of the United States, are guaranteed only as to the timely payment of interest and principal when
held to maturity and the market prices for such securities will fluctuate. Notwithstanding that
these securities are backed by the full faith and credit of the United States, circumstances
could arise that would prevent the payment of interest or principal. This would result in losses to
the Fund. Securities issued or guaranteed by U.S. government-related organizations, such as
Fannie Mae and Freddie Mac, are not backed by the full faith and credit of the U.S. government
and no assurance can be given that the U.S. government will provide financial support. Therefore,
U.S. government-related organizations may not have the funds to meet their payment obligations in
the future.
Asset-Backed, Mortgage-Related and Mortgage-Backed Securities Risk. The Fund may invest in asset-backed, mortgage-related and mortgage-backed securities including so-called “sub-prime” mortgages that are subject to
certain other risks including prepayment and call risks. 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 dividends and yield. In periods of either rising
or declining interest rates, the Fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the Fund may exhibit additional volatility.
During periods of difficult or frozen credit markets, significant changes in interest rates or
deteriorating economic conditions, such securities may decline in value, face valuation
difficulties, become more volatile and/or become illiquid. 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.
Collateralized mortgage obligations (CMOs) and stripped mortgage-backed securities, including those structured as interest-only (IOs) and principal-only (POs), are
more volatile and may be more sensitive to the rate of prepayment than other mortgage-related
securities. The risk of default, as described under “Credit Risk,” for “sub-prime” mortgages is generally higher than other types of mortgage-backed securities. The structure of some of these securities may be
complex and there may be less available information than other types of debt
securities.
Prepayment Risk. The
issuer of certain securities may repay principal in advance, especially when yields fall. Changes in the rate at which prepayments occur can affect the return on investment of these securities. When debt obligations
are prepaid or 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
coupons, resulting in an unexpected capital loss.
Cash Transactions Risk. Unlike certain ETFs, the Fund may effect creations and redemptions in cash or partially in cash. Therefore, it may be required to sell portfolio securities and subsequently recognize gains on such sales that
the Fund might not have recognized if it were to distribute portfolio securities in-kind. As
such, investments in Shares may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind.
Foreign Issuer Risk.
U.S. dollar-denominated securities of foreign issuers or U.S. affiliates of foreign issuers may be subject to additional risks not faced by domestic issuers. These risks include political and economic risks, civil
conflicts and war, greater volatility, expropriation and nationalization risks, sanctions or
other measures by the United States or other governments, and regulatory issues facing issuers in such foreign countries. Events and evolving conditions in certain economies or markets may alter the risks associated with
investments tied to countries or regions that historically were perceived as comparatively stable
becoming riskier and more volatile.
Geographic Focus Risk. The Fund may focus its investments in one or more regions or small groups of countries. As a result, the Fund’s performance may be subject to greater volatility than a more geographically diversified
fund.
Derivatives Risk. Derivatives, including futures contracts, options and swaps, may be riskier than other types of investments
and may increase the volatility of the Fund. Derivatives may be particularly sensitive to changes
in economic and market conditions and may create leverage, which could result in losses that
significantly exceed the Fund’s original investment. Certain derivatives also expose the
Fund to counterparty risk, which is the risk that the derivative counterparty will not fulfill its
contractual obligations (and includes credit risk associated with the counterparty). Certain
derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject
to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not
realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security being hedged. In addition, given their complexity, derivatives expose the Fund
to risks of mispricing or improper valuation. Derivatives also can expose the Fund to derivative
liquidity risk, which includes risks involving the liquidity demands that derivatives can create to make payments of margin, collateral, or settlement payments to counterparties, legal risk, which includes the risk of loss
resulting from insufficient or unenforceable contractual documentation, insufficient capacity or
authority of the Fund’s counterparty and operational risk, which includes documentation or settlement issues, system failures, inadequate controls and human error. Certain of the Fund’s transactions in derivatives could
also affect the amount, timing and character of distributions to shareholders which may result in
the Fund realizing more short-term capital gain and ordinary income subject to tax at ordinary income tax rates than it would if it did not engage in such transactions, which may adversely impact the Fund’s after-tax
returns.