The fund invests, under normal circumstances, at least 80% of its net assets in fixed-income securities rated Ba1 or lower by Moody"s Investors Service ("Moody"s"), or BB+ or lower by S&P Global Ratings ("S&P") or Fitch Ratings ("Fitch"), or the equivalent by any nationally recognized statistical rating organization ("NRSRO") (commonly known as "junk bonds"); unrated securities considered by the Adviser to be of comparable quality; and related derivatives.