In private capital, long memos can create a false sense of certainty. More pages do not automatically mean better underwriting. In fact, the longer a memo becomes, the easier it is to hide the core weaknesses behind volume.
I use a one-page discipline before any investment memo earns more words. The purpose is not to oversimplify. The purpose is to clarify. If we cannot explain the deal in one page without losing the truth, we are not ready to make a high-conviction decision.
I start with the core claim. What must be true for this investment to work. This is not a slogan and it is not a market narrative. It is a specific statement about the mechanism that creates value. If the claim cannot be expressed in one sentence, the investment thesis is likely unfocused.
Next is the proof. Evidence should be grounded in observable reality rather than broad themes. Customer behavior, retention dynamics, pricing mechanics, unit economics, contract structure, and the operational levers that move outcomes are more persuasive than a story about market size. The question is simple: what do we know, and how do we know it.
Then comes the fragility. Every deal has a breaking point. A disciplined memo names it clearly. Fragility can come from concentration, weak cash conversion, dependency on a narrow exit window, or an operating model that cannot adjust quickly. The point is not to eliminate risk. The point is to identify the variable that turns a manageable risk into permanent impairment.
After fragility, I write the non-negotiables. These are the conditions that must be true for us to proceed. Governance rights, reporting cadence, downside triggers, and structural protections are not legal details. They are decision tools. A deal that cannot support the appropriate controls is a deal that demands trust where discipline is required.
Finally, I write the walk-away line. The outcome that makes us step back, even if the narrative sounds attractive. This line protects the team from falling in love with a story. It also creates consistency across decisions, because it forces us to be honest about what we will not tolerate.
This one-page discipline does not make investing slower. It makes decision-making cleaner. It reduces narrative drift, improves accountability, and keeps the team aligned on the few variables that actually decide outcomes.
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