Smart Augment
22 Sep 2026 · Vol. 1 Purchase a Plan
An open wooden index card drawer pulled out on a desk, hundreds of cream cards on edge with blank tabbed dividers, a steel rule beside it.

Notes. Research from the desk. Sample figures throughout.

Notes

Short research notes on how agency mortgage pools behave and how to read the files that say so. Evidence first, the hedge before the conclusion, and a line at the end of each on what would break it. None of it is advice.

An index card drawer of notes.
Six monthly print sheets laid in a row across a desk under raking morning light, each a small table of figures, a brass lamp base behind.

September 2026

The Six Prints

One monthly prepayment print is close to a coin flip. Six against the cohort start to describe a borrower base.

Read the note
Two slabs of stacked paper of different heights in profile on a desk, a steel rule standing between them, morning light from the left.

September 2026

The Two Slabs

Ginnie against Fannie at the same coupon: three sources of the speed gap, each measurable from the disclosure files alone.

Read the note
A field of thin blank paper strips standing upright on a paper plane at macro, casting fine parallel shadows under window light.

September 2026

The Balance Field

A $118k borrower saves about $38 a month by refinancing half a point lower. That arithmetic is the low balance story, and it has a price.

Read the note
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Three notes

Purchase a Plan