Ramp  

A concept often used with HELs and manufactured-housing transactions to describe a series of increasing monthly prepayment speeds, prior to a plateau, on which the expected average life of a security is based.

Remarks: Bond funds including mutual funds (open-end and closed-end, actively managed and indexed), exchange-traded funds and unit investment trusts offer a convenient and affordable way to invest in a diversified portfolio of bonds, but a bond fund investment can differ from a bond investment in ways that are important to understand.