Whenever you state GAAP?
Brody Preston — Stephens Inc — Analyst
Yes, you are meant by me provide — yes you provide an FTE and a GAAP margin in your pr release. And thus imagine down that the core margin for a GAAP as well as an FTE foundation simply.
Robert Michael Gorman — Executive Vice President and Chief Financial Officer
Yes, that is FTE foundation that people’re dealing with here.
Brody Preston — Stephens Inc — Analyst
Okay. Therefore it appears like perhaps merely a little little more compression in the 1st quarter after which type of stable to up after that?
Robert Michael Gorman — Executive Vice President and Chief Financial Officer
Yes. That is perfect.
Brody Preston — Stephens Inc — Analyst
Okay. Fine. I recently wished to touch about what % of loans, the mortgage profile is linked with LIBOR and exactly how a lot of this is certainly one LIBOR month?
Robert Michael Gorman — Executive Vice President and Chief Financial Officer
Yes the total guide about 24% is associated with 30 days LIBOR. Therefore it is pretty responsive to that LIBOR price. And it declined quite a bit in the fourth quarter, about 30 basis points as you know. I do believe to ensure that had been a driver that is big of loan yield compression you saw — we saw.
Brody Preston — Stephens Inc — Analyst
Ok and just what per cent regarding the profile is associated with prime?
Robert Michael Gorman — Executive Vice President and Chief Financial Officer
Brody Preston — Stephens Inc — Analyst
Okay. And I also’m presuming these loans type of reprice through the entire quarter for a monthly foundation?
Robert Michael Gorman — Executive Vice President and Chief Financial Officer