Investing primarily in debt securities, including lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds). Allocating the fund's assets among four general investment categories: high yield securities, U.S. Government and investment-grade securities, emerging markets securities, and foreign developed markets securities. Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics. Potentially investing in equity securities. Using a neutral mix of approximately 45% high yield, 30% U.S. Government and investment-grade, 15% emerging markets, and 10% foreign developed markets. Analyzing a security's structural features and current pricing, its issuer's potential for success, and the credit, currency, and economic risks of the security and its issuer to select investments. Hedging the fund's foreign currency exposures utilizing forward foreign currency exchange contracts, although not all of the fund's foreign currency exposure will be hedged. Engaging in transactions that have a leveraging effect on the fund, including investments in derivatives - such as swaps (interest rate, total return, and credit default), options, and futures contracts - and forward-settling securities, to adjust the fund's risk exposure. Investing in Fidelity's Central funds (specialized investment vehicles used by Fidelity® funds to invest in particular security types or investment disciplines) consistent with the asset classes discussed above.