T. Rowe Price Ultra Short-Term Bond Fund 

This fund's strategy involves allocating its capital to a diverse array of high-quality, short-term debt instruments issued by both corporations and government entities. A significant portion, specifically at least 80% of its net assets (including any funds acquired through borrowing for investment), is typically invested in bonds. Crucially, all securities acquired by the fund must carry an investment-grade rating from at least one major credit rating agency at the time of purchase, or, if unrated, be internally determined by T. Rowe Price to meet investment-grade standards.