Learn · the value investing library

Learn to value a business.

Thirty-three essays, a vocabulary and the long form behind every number this service shows. Written for people who intend to hold for years. Free, and in the order we would read them.
How this works
One loop, walked one company at a time. Every page in the service is one of these five steps, and the briefing only ever shows what the steps produced.
01
Discover
Find names worth the work: the screener, the weekly picks and the map of who supplies whom.
Discover →
02
Understand
Three questions before any number: what it sells, why customers stay, and what would take it away.
Company · Understand →
03
Value
What the price assumes and what you believe: the reverse DCF, the AI fair value, the margin of safety, and your own number saved as the anchor.
Company · Value →
04
Decide
Write it down: the thesis, the kill criteria, the size, and the three sell rules. Nothing here is read by anyone but you.
Company · Decide →
05
Monitor
The briefing reads what you wrote: story checks after reports, kill criteria every hour, the trim and sell bands against your anchor. The journal keeps the record.
Briefing · Journal →

The machine

What the analysis does, what it has returned, and where judgment stays yours.
Track record · 8 min
What the AI portfolio has actually done
Research · 8 min
Research at the speed of reading
Nothing here is gated. No email, no trial, no wall. If the thinking is any good it should survive being read for free.