ABS Pass through vs. Pay through

I just got a FI question in the Q bank talking about ABS pay through structures… I swear I never read anything about these (and certainly have never heard of them in 15 years of buying ABS). WTF?

I’ve seen it on AF still don’t know the difference

BUMP?

Paythrough = actively managed Passthrough = pro-rata ABS paythrough and passthrough securities can be created directly from the pool of underlying. MBS paythrough are created from mortgage passthroughs that are created from a pool of underlying mortgages. I think this is correct, don’t quote me and I don’t know if this is anything close to what you guys were looking for.

Works for me.