The MainStay MacKay Convertible Fund Class A (MCOAX) is a mutual fund that primarily invests in convertible securities, which are bonds or preferred stocks that can be converted into common stock. This fund aims to provide investors with a balance of income and potential for capital appreciation by investing in a diverse portfolio of convertible securities from various industries and sectors. Managed by MainStay Investments, the fund seeks to provide long-term growth and income for its investors.