Start with the business
Understand the customer, unit economics, industry structure, competitive advantage, and reinvestment runway before opening the valuation model.
Investment process
The model is the output of the thinking, not the thinking itself. My process is designed to connect business reality, market expectations, downside, and decision rules.
Core principles
Understand the customer, unit economics, industry structure, competitive advantage, and reinvestment runway before opening the valuation model.
Treat price as a set of embedded assumptions. The opportunity exists only when the market’s expectations differ from a defensible operating reality.
Stress leverage, cyclicality, working capital, capital intensity, and management execution. A low multiple does not create downside protection by itself.
Define in advance what would invalidate the thesis, which evidence deserves the most weight, and how the position should change when facts change.
Workflow
A practical sequence that keeps research tied to a decision rather than an ever-expanding collection of facts.
State what must be true for the security to be mispriced and identify the few variables that will determine the outcome.
Use filings, competitors, customers, management commentary, and industry structure to connect qualitative evidence to operating drivers.
Model cash generation and reinvestment across coherent bear, base, and bull cases. Reverse-engineer what today’s price already assumes.
Write the variant perception, the strongest counterargument, falsification points, expected return, and position-size logic.
Revisit the original underwriting, distinguish bad luck from bad reasoning, and convert recurring errors into checklist items.
Its most valuable items came from painful investments: normalize margins, respect control, put a cost on time, and demand a credible path from strategic potential to free cash flow.
Read the postmortems →