A house is worth what it is worth. A stunning house in a great location can still be a bad purchase, if someone pays far more for it than it is actually worth. An ordinary house in a quiet street can turn out to be a brilliant purchase, bought at the right price. Companies work the same way.

A company is the actual business: its products, its customers, its profits. The price is something else entirely. It is simply what other investors are currently willing to pay for a small slice of that business. A wonderful company and a wonderful investment are not automatically the same thing, because one is about the business, and the other is about the price paid for it.

Price is what you pay. Value is what you get.Warren Buffett

One simple way to see the price being paid is to compare the share price with the company's profit. If a company earns £5 a share and its shares cost £75, an investor is paying £75 for that £5 of profit. That is fifteen years worth of it, at today's rate. Pay £150 for the same £5 of profit, and it becomes thirty years worth.

Same Profit. Two Very Different Price Tags.
£5 of profit per share, bought at two different prices
15× 30× £75 for £5 of profit £150 for £5 of profit
This multiple (known as the P/E, or price-to-earnings ratio) is a starting question, not a verdict. A lower multiple is not automatically a bargain. Sometimes the market has already spotted a real problem the price correctly reflects. A higher multiple is not automatically overpriced either. Part of it can be the market paying for real growth the company has not delivered yet. Reading a valuation properly goes deeper than this single number, and belongs to its own article and to the wider education platform.

The gap between the price paid and what the business is actually worth is called a margin of safety. A bigger gap leaves more room for being wrong about the future, because no one can predict a company's profits with certainty. Even a wide gap cannot fully protect against a business turning out to be worth less than assumed.

Some investors look specifically for mispriced companies: businesses the market has not yet valued correctly. A wide enough gap can create an asymmetric opportunity: limited downside if wrong, a larger gain if right. This is how growth investors often frame the hunt for one. Mohnish Pabrai calls it "heads I win, tails I don't lose much." A genuine mispricing is hard to spot. What looks mispriced can simply be priced correctly for a reason not yet visible.

Put business quality and price paid on the same picture, and four outcomes appear.

Business Quality vs Price Paid
Four combinations. Four very different outcomes.
Fair price
Expensive price
Strong business
The Rare Win
A strong business, bought without overpaying for it.
The Trap
A brilliant business, but the price already assumes years of future success. Any stumble is costly.
Ordinary business
The Quiet Win
An unremarkable business, bought cheaply enough to still work out.
The Bad Deal
No quality edge, and no price advantage either.
The rare win is called rare for a reason. Identifying a genuinely strong business before its price catches up is difficult, and feeling confident that a business is "strong" is not the same as being right about it.
Good companies are not always good investments. It depends on the price.Joel Greenblatt
01

Business quality and price paid are two separate questions, not one.

One is about the company. The other is about what other investors are currently willing to pay for a piece of it.

02

The multiple being paid is the price tag on the company's current profit, not a judgement on the company itself.

The same profit can be bought at a low multiple or a high one, and the size of that tag changes the outcome on its own.

03

A wider gap between price and worth allows more room for being wrong, not a guarantee of being right.

This margin of safety is why the price paid matters just as much as the business bought.

None of this says whether any specific company today is cheap, expensive, or fairly priced. It shows two separate questions worth asking about any business: is this a good company, and is this a good price for it. Knowing the mechanism behind that question is not the same as having the answer to either one.