NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns a BBBkf Fund Rating to the Penn Mutual AM Unconstrained Bond Fund (Fund) (Ticker: PMUBX). The BBBkf rating reflects the Unconstrained Bond Fund’s Primary Quantitative Rating (PQR) as measured by the KBRA Funds Credit Quality Rating Matrix, which is based on the credit quality of the underlying instruments that comprise the portfolio. Additionally, the Fund rating is influenced by the results of the qualitative assessment of the