[SoftTalker]

I'm not that experienced with it either, but a mortgage loan is just a secured loan. The primary value driver is that it's a stream of payments for a defined period of time, probably boosted by the fact that it's secured but also reduced by the fact that it can be paid off at any time. I'm sure there's more to it than that, but fundamentally it's just a debt that can be bought and sold for something close to its net present value of its future cash flows, like any other bond or debt.