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. • Investments in high-yield ("junk") bonds are considered speculative, involve heightened credit risk and greater risk of price volatility, illiquidity, and default than investment grade bonds. • The risks associated with mortgage-related and asset-backed securities as well as collateralized loan obligations (CLOs) include credit, interest-rate, prepayment, liquidity, default and extension risk. There are additional risks associated with credit risk transfer securities. • Loans can be difficult to value and less liquid than other types of debt instruments; they are also subject to nonpayment, collateral, bankruptcy, default, extension, prepayment and insolvency risks. • Fixed income security risks include credit, liquidity, call, duration, event and interest-rate risk. As interest rates rise, bond prices generally fall. • 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, valuation, and counterparty risk. • Foreign investments 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. • Restricted securities may be more difficult to sell and price than other securities. • The Fund's investments may fluctuate in value over a short period of time. • The portfolio managers may allocate a portion of the Fund's assets to specialist portfolio managers, which may not work as intended. • Obligations of U.S. Government agencies are supported by varying degrees of credit but are generally not backed by the full faith and credit of the U.S. Government. • The Fund may have high portfolio turnover, which could increase its transaction costs and an investor's tax liability.