The John Hancock Preferred Income Fund III (HPS) functions as a closed-end investment vehicle, primarily focused on fixed-income securities. Its overall management falls under John Hancock Investment Management LLC, with additional co-management provided by John Hancock Asset Management. The fund strategically allocates capital within the United States' fixed-income markets, aiming to acquire debt instruments from companies operating across a diverse array of sectors. A significant portion of its portfolio is dedicated to preferred securities and other fixed-income instruments that possess an investment-grade credit rating or higher from either Moody's or Standard & Poor's. To assess its performance, the fund measures itself against both the Bank of America Merrill Lynch Hybrid Preferred Securities Index and the Barclays U.S. Aggregate Bond Index. This U.S.-domiciled fund was originally established on June 19, 2003.