The Nuveen Preferred Securities Income Fund functions as a closed-end mutual fund, focusing exclusively on fixed income investments. It was established by Nuveen Investments, Inc., and its management responsibilities are shared between Nuveen Fund Advisors LLC and Spectrum Asset Management, Inc. The fund allocates its capital within the fixed income markets of the United States. Its primary investment strategy targets high-quality preferred debt securities, convertible debt instruments, and convertible preferred securities. These holdings must maintain a minimum credit rating of BBB/Baa or higher from recognized agencies such as S&P, Moody's, or Fitch. Originally known as Nuveen Quality Preferred Income Fund 2, this entity was inaugurated on June 24, 2002, and is based in the United States.