Risk

Concentration Risk

Almost every "sudden" small-business death is a concentration story: one customer, one platform, one supplier, one person. One decision by someone else that touched too much of the business at once.

  • Intermediate
  • 6 min total
  • 10 chapters

What decision this helps you make: What your single largest dependency is as a share of revenue or cost, and at what threshold you'll start paying the diversification tax deliberately.

What this topic is

Concentration risk is the general law behind the category's specific lessons: any dependency (customer, supplier, platform, channel, person, product) whose loss the business can't survive converts someone else's decision into your existential event.

Why it matters

Concentration accumulates through success, one good decision at a time, which makes it invisible from inside. The measurement is a single table anyone can build in an hour; not building it is how businesses discover their fragility in the loss itself.

Who should learn it

Every owner. This is the lens that unifies customer, supplier, platform, key-person, and regime risk into one measurable habit.

What you will understand

  • See the master pattern: risk scales with the share one loss touches
  • Understand why success concentrates, and why that makes it invisible
  • Build the concentration table: five dependencies, five shares, one hour
  • Price concentrated revenue honestly and cap shares deliberately

Prerequisites

Common misconception

"Our biggest customer is our best relationship, so that's strength, not risk." It's both, and the second doesn't cancel the first: revenue that can leave in one decision is worth less than its face value, however warm the relationship. The point isn't to refuse big customers; it's to price the concentration honestly: in reserves, in diversification effort, and in how much of the future you build on it.