PAC TRANCHE
planned amortization class ( PAC) tranche
A REMIC security created to receive selected cash flows from a pool of underlying mortgages securing the REMIC. PAC tranches use a structure similar to a sinking fund to establish a fixed principal payment schedule. Created together with a companion or support tranche. PAC tranches are intended to have low call and low extension risk.
Sometimes calledcontrolled amortization bonds.
+ A REMIC security created to receive selected cash flows from a pool of underlying mortgages securing the REMIC. PAC tranches use a structure similar to a sinking fund to establish a fixed principal payment schedule. Created together with a companion or support tranche.American Banker Glossary