The MainStay MacKay U.S. Infrastructure Bond Fund Class R6 (ticker: MGVDX) is a mutual fund that focuses on investing in bonds issued by companies involved in the development and maintenance of infrastructure in the United States. This includes sectors such as transportation, utilities, and communication. The fund aims to provide investors with a steady stream of income through interest payments from these bonds, while also seeking to preserve capital and achieve long-term growth. As a Class R6 fund, it is designed for institutional investors and has a lower expense ratio compared to other share classes.