The PIMCO Income Strategy Fund is a closed-end mutual fund dedicated to fixed-income investments. It was established and is overseen by Allianz Global Investors Fund Management LLC, with Pacific Investment Management Company LLC (PIMCO) also contributing to its management. This fund pursues investment prospects in bond markets worldwide, building a diverse collection primarily of floating-rate debt instruments. Its portfolio is designed to maintain an approximate average duration of three years. To construct its holdings, the fund employs a fundamental analysis that utilizes a top-down approach. Formed on June 19, 2003, and legally registered in the United States, it was previously known as the PIMCO Floating Rate Income Fund.