Read the method before you trust the number.

What a load line is, and why every business has one

In 1876 British law made merchant ships carry a mark on the hull, the line Samuel Plimsoll had fought for: load past it and the sea takes you. Intrinsic value is the same mark for a business. The price is the load, and the margin of safety is the distance to the line. This is how we draw it, what we assume, and what we refuse to guess.

The method

The 12 signals

Twelve things a value investor would check by hand in the accounts. Each one wins its full weight, half of it, or nothing, and the score is the share won over the signals we could check.

Glossary

The same cards that turn over on each dossier: why the figure matters, an example with numbers, and one line to keep.

Case files