laddering
n.β Β«Itβs also possible to buy a series of CDs, often referred to as “laddering,” so youβll have some coming due at fairly frequent intervals, allowing you to renew at higher rates if rates are rising.Β» ββWhat to do when you want to run from risk” by Albert B. Crenshaw Houston Chronicle (Texas) Feb. 2, 2008. (source: Double-Tongued Dictionary)