A foundry for moat-thinking investors

Learn to analyze stocks through the mental models of legendary investors.

Moatery turns your stock research into structured theses, refined through the lenses of Buffett, Munger, Graham, Lynch, Howard Marks, and Li Lu — so you build conviction, not noise.

Six investor lenses, one disciplined process

Warren Buffett

"Owner earnings, durable moats, rational capital allocation."

Charlie Munger

"Latticework of mental models. Invert, always invert."

Benjamin Graham

"Margin of safety. Mr. Market is a servant, not a guide."

Peter Lynch

"Know what you own. Tenbaggers hide in plain sight."

Howard Marks

"Second-level thinking. Where are we in the cycle?"

Li Lu

"Deep work, concentrated bets, the compounding of understanding."

How it works

01

Pick a stock and an investor lens.

Choose the mental model that fits the business — a compounder through Buffett, a cyclical through Marks.

02

Paste filings, transcripts, or notes.

Drop in the 10-K, the call transcript, or your own scribbled margin notes.

03

Get a structured memo, save your thesis, revisit at next earnings.

Your memo lives in the Journal. When the next quarter lands, Moatery surfaces what changed against your original thesis.

Not a stock picker. A thinking coach.

Moatery doesn't tell you what to buy. It teaches you to ask the questions a great investor would ask — about durability, about management, about the price of being wrong. Over time, the lenses become yours. The memos become evidence of how your thinking sharpened, quarter by quarter.