How is intrinsic value calculated?

There is no single formula: it is estimated with methods such as discounted cash flows, comparable multiples or sum-of-the-parts. That is exactly why the margin of safety matters — every estimate carries error.

What margin of safety is enough?

Graham worked with 30–50% discounts. Stable, predictable businesses may justify less; cyclical or hard-to-value ones, more. The margin should be proportional to your uncertainty.

Does a margin of safety guarantee I won't lose money?

No. It cushions valuation errors, but if the thesis is wrong or the business deteriorates permanently, the loss arrives anyway. It is a cushion, not insurance.

Margin of Safety | Wiki Por Dividendos

The margin of safety is the discount between what you estimate a business is worth (its intrinsic value) and what you pay for it on the market. Buying with a margin of safety means demanding a price clearly below your valuation, so that an estimation error does not turn the investment into a loss.

Margin of safety = (Intrinsic value − Price) / Intrinsic value × 100

If you estimate a stock is worth €50 and it trades at €35, you are buying with a 30% margin.

Graham's idea

The concept was formulated by Benjamin Graham — Warren Buffett's teacher — in The Intelligent Investor, and it is the cornerstone of value investing. The logic: every valuation is an estimate with errors built in; the margin of safety is the cushion that absorbs them. Buffett summarises it with the bridge analogy: if 10-ton trucks will cross it, build it to hold 15.

Margin of Safety

Graham's idea

What it protects against (and what it does not)

How dividend investors apply it

How much margin to demand

Frequently asked questions