The Lord Abbett Ultra Short Bond Class F3 (LUBOX) is a mutual fund that primarily invests in short-term fixed income securities, such as government and corporate bonds, with the goal of providing investors with a stable and low-risk source of income. This fund is managed by Lord Abbett, a leading investment management firm, and is classified as a Class F3 fund, which typically has lower fees and minimum investment requirements compared to other classes. LUBOX is suitable for investors seeking a conservative investment option with a focus on capital preservation and steady returns.