The PGIM High Yield Bond Fund, Inc. (ISD) is a mutual fund that primarily invests in high-yield bonds, also known as "junk bonds." These bonds are issued by companies with lower credit ratings, making them riskier but potentially offering higher returns. The fund is managed by PGIM Investments, a global asset management firm, and aims to provide investors with a diversified portfolio of high-yield bonds to generate income and potentially enhance overall portfolio returns.