PIMCO Dynamic Income Fund is the United States-based closed-end management investment company. The fund's investment objective is to seek current income. Its secondary objective is to seek capital appreciation. The fund invests worldwide in a portfolio of debt obligations and other income-producing securities with varying maturities and related derivative instruments. Its investments include mortgage-backed securities, investment grade, and high yield corporates, corporate and sovereign bonds, other income-producing securities and related derivative instruments.