The slow way, made survivable Chapter 2 of 23 Svenska

The map · Part One · The method · Chapter 2 of 23

What value investing is

A piece of a real business is worth something. The market quotes a price for it every day. Those are two different numbers, and the gap between them is the whole opportunity. About 9 minutes · on the 10-minute route.

Worked example: NAME A

NAME A is a company that makes something ordinary and sells it every year. Last year, after paying its staff, its suppliers and its taxes, and after spending what it needed to keep its factories working, it had 10 left over per share. It has done roughly that for a decade. It owes nobody very much.

That 10 per share of spare cash, year after year, is what you are actually buying when you buy one share. Not a ticker, not a chart. A claim on a stream of cash from a business that exists.

Here is the first idea, and it is the one everything else rests on. When you buy a share, you buy a fraction of a real business that earns real money. That fraction is called a share, and the company's spare cash after everything it must pay is called its free cash flow. The business is worth something: some amount that a sensible person would pay for the right to that stream of cash for as long as it lasts. That amount is its value.

The second idea: every trading day, the market quotes a number at which you can buy or sell that share. That number is the price. The price moves every minute. The value of the business does not. A factory does not become worth less between Tuesday and Wednesday because the people trading its shares got nervous.

Price and value are not the same number, and most of the time nobody knows how far apart they are. That is the opportunity. Benjamin Graham, who taught this at Columbia in the 1930s, put it in a sentence his student Warren Buffett has repeated for fifty years: "Price is what you pay; value is what you get."11Buffett, letter to Berkshire Hathaway shareholders for 2008, page 4, crediting Graham. Source in the fold below.

Price against value over timeA slowly rising blue line with square markers shows the value of a business. An orange zigzag with circle markers shows its quoted price crossing above and below the value line. Dashed vertical lines mark the gap where price is below value and where it is above. timeworththe gapprice below valueprice above valuevalue: what the business is worth, moves slowlyprice: what the market quotes, moves daily
Two numbers for one business. The blue squares are what it is worth; the orange circles are what it is quoted at. The gap between them is the whole opportunity, and it opens in both directions.

Graham had a way of making the difference vivid. Imagine you own a share of a business together with a partner who is slightly unhinged. Every day he names a price at which he will buy your half or sell you his. Some days he is euphoric and names a silly high price. Some days he is despairing and names a silly low one. He does not mind being ignored. The mistake is to let his mood tell you what the business is worth. The opportunity is to sell to him when he is euphoric and buy from him when he is despairing, and otherwise to get on with your life.22Graham, The Intelligent Investor, chapter 8; retold by Buffett in his 1987 letter: 'Mr. Market is there to serve you, not to guide you. It is his pocketbook, not his wisdom, that you will find useful.' Graham called the partner Mr Market.

Margin of safety

You will never know the value exactly. You will estimate it, and your estimate will be wrong by some amount you cannot know in advance. So you do not buy at your estimate. You buy well below it, and the distance between your estimate and the most you will pay is your room to be wrong.

Think of a road bridge. The engineer calculates it can carry a certain load, then posts a limit well below that. Not because the calculation is careless, but because the calculation is a calculation, the steel is real, and the truck is heavy. The gap between the posted limit and the calculated load is what lets the bridge survive the engineer's mistakes. Graham called the same gap, applied to buying a business, the margin of safety, and named it the central concept of investment.33Graham, The Intelligent Investor (1949), chapter 20, 'Margin of Safety as the Central Concept of Investment'. The bridge picture here is the site's own; a similar one is often attributed to Buffett but could not be verified against a primary text and is not claimed as his.

Margin of safety as a cushion below the estimated valueA horizontal bar from 0 to 100 represents the estimated value. The part from 85 to 100 is drawn as an empty dashed region labelled the cushion, room to be wrong. Vertical lines at 85, 75 and 65 mark the most the owner would pay by tier. An orange circle at 70 marks today's price, below every line. your estimate of value: 10085tier 175tier 265tier 3the most you would pay, by tierthe cushionroom to be wrongprice today: 70below every line0your estimate can be wrong by 15, 25 or 35 and you still paid less than it is worth
Margin of safety. You think the business is worth 100. You refuse to pay more than 85, or 75, or 65, depending on how sure you are. The cushion is the room for your estimate to be wrong.

Why patience is the mechanism, not a personality trait

This is the part people get backwards. Patience sounds like a virtue you either have or do not. Here it is not a virtue. It is a step in the procedure.

If you have decided that NAME A is worth 100 and you will pay at most 85, then on every day the price is 93 the correct action is nothing. Not "wait and see". Nothing, as a decision, taken and recorded. The opportunity only exists because most participants cannot do nothing: they must be invested, or they must act on news, or they must show activity to someone. A person who can sit at 93 for a year and buy at 84 on the one day it gets there is not calmer than the others. They have simply written the number down in advance, and the number is doing the waiting for them.

Graham again, through Buffett: "In the short-run, the market is a voting machine, but in the long-run, the market is a weighing machine."44Buffett, 1993 letter to shareholders, quoting Graham. Source in the fold. Votes are cheap and fast. Weight takes time to show. The method is built for the weighing.

Where this comes from
  • "Price is what you pay; value is what you get." Buffett, 2008 shareholder letter, page 4, crediting Graham. The site's author extracted the sentence from the letter's PDF.
  • Mr Market: Graham, The Intelligent Investor, chapter 8; Buffett's retelling, 1987 letter.
  • Voting machine and weighing machine: Buffett, 1993 letter, quoting Graham.
  • Margin of safety: Graham, The Intelligent Investor, chapter 20.

Where this project differs from Graham: the cushion is a fixed fraction set by how well the business is understood (chapter 11), and it is written down before the price is looked at (chapter 8). Graham described the principle; the project makes it a rule with a number.

Sources for this chapter

  1. Buffett, 2008 letter to shareholders (page 4: 'Price is what you pay; value is what you get')
    https://www.berkshirehathaway.com/letters/2008ltr.pdf
  2. Buffett, 1987 letter to shareholders (Mr Market)
    https://www.berkshirehathaway.com/letters/1987.html
  3. Buffett, 1993 letter to shareholders (voting machine, weighing machine)
    https://www.berkshirehathaway.com/letters/1993.html
  4. Margin of safety (financial), Wikipedia
    https://en.wikipedia.org/wiki/Margin_of_safety_(financial)

The slow way, made survivable. Built 2026-09-13 from the repository as it stood that day. NAME A and NAME B are fictional; no company, price or holding appears on this site. Not financial advice: one private investor's method, shared as it is.