Important Risks: Investing involves risk, including the possible loss of principal. Security prices fluctuate in value depending on general market and economic conditions and the prospects of individual companies. • Foreign investments, including foreign government debt, may be more volatile and less liquid than U.S. investments and are subject to the risk of currency fluctuations and adverse political, economic and regulatory developments. These risks may be greater, and include additional risks, for investments in emerging markets or if the Fund focuses in a particular geographic region or country. • Fixed income security risks include credit, liquidity, call, duration, and interest-rate risk. As interest rates rise, bond prices generally fall. • Investments in high-yield ("junk") bonds involve greater risk of price volatility, illiquidity, and default than higher-rated debt securities. • Derivatives are generally more volatile and sensitive to changes in market or economic conditions than other securities; their risks include currency, leverage, liquidity, index, pricing, regulatory and counterparty risk. • Restricted securities may be more difficult to sell and price than other securities. • The Fund may have high portfolio turnover, which could increase its transaction costs and an investor's tax liability. • Because the Fund is non-diversified, it may invest in a smaller number of issuers, and may be more exposed to risks and volatility than a more broadly diversified fund. • Integration of environmental, social, and/or governance (ESG) characteristics into the investment process may not work as intended.