Under normal market conditions, the fund invests at least 80% of its net assets in U.S.-dollar-denominated high-yield corporate bonds. Such corporate bonds are below-investment-grade securities rated from BB+ to D by S&P Global Ratings or by Fitch Ratings, Inc. or from Ba1 to D by Moody"s Investors Service, Inc., or a comparable rating by any nationally recognized statistical rating organization (NRSRO), or unrated equivalents.