How a company becomes a dollar figure — and why your slice of it is worth less than you'd think.
A share of a public company has a price you can look up in a second. A private business doesn't. So when you want to know what one is worth — to sell it, to buy in, to settle a partnership — someone has to estimate it. That estimate is a valuation. It's the machinery that turns "I own a business" into an actual number.
And here's the first thing to know: the same business can be "worth" very different amounts depending on the method used, the buyer, and — this is the part that surprises people — how much of it you own and how easily you can sell. A valuation is an informed opinion, not a fixed fact.
Appraisers lean on three main methods, then often blend them. Picture a private company with about $680,000 in yearly operating profit and $3.5M in sales:
An illustration. A real valuation weights the methods — often leaning hardest on discounted cash flow.
A "multiple" is the heart of it: a buyer isn't paying for one year of profit, they're paying for all the profit to come — so they hand over several years' worth now. The riskier and more owner-dependent the business, the lower the multiple a buyer will offer.
Now the part almost no one expects. Say the whole company is worth $4.2M and you own 35% of it. Your share is not simply 35% of $4.2M. Watch what happens:
You can own a third of a company and not be worth a third of it. Control and the ability to sell are worth real money.
Before you celebrate a valuation, ask whose value it is: the whole company's, or your particular, discounted piece of it.
A valuation is an opinion built on assumptions — the multiple chosen, the growth forecast, the discount rate. Change an assumption and the number moves a lot; reasonable experts land on very different figures. And value is only ever proven when someone actually pays it. Until a check clears, the number on the report is a well-argued guess. Small private companies get lower multiples and bigger discounts precisely because they're risky and often depend on their owner — the very trap from the last lesson.
Two more truths. The number is not money in your pocket: it's before tax, before a sale that may never come, and often locked in a stake you can't easily sell. A million-dollar valuation you can't sell, don't control, and would owe tax on is nothing like a million in the bank. And real valuations first have to clean up the books — stripping out the clutter and inside-the-family loans to find the true underlying value. The headline number always hides a lot of work, and a lot of judgment.
Valuation is the machinery that turns a business into transferable, inheritable wealth — and it quietly rewards the powerful twice. Look again at those two discounts. The big players buy whole companies, so they pay no control discount; and they can always find a buyer, so they pay no marketability discount. They collect full value for every dollar of earnings. The small minority owner gets docked for both. The same profit is simply worth more to the powerful than to the small — by the math of valuation itself.
So concentration isn't only about owning more. It's about owning in the forms the market rewards — control, liquidity, scale. Spreading not just ownership but controlling, sellable ownership — the kind that gets full value — is the deeper project. The next two lessons take those two discounts apart, one at a time.