Short answer: The margin of safety is the gap between a share’s market price and its estimated intrinsic value, which is an estimate of what the business is worth. Investors use it as a cushion against errors in valuation estimates, sudden company setbacks, and market volatility (sharp price swings), and it is paired with high-quality companies, not cheap weak ones.
Last reviewed: 3 November 2026
At a glance
| Item | What it means | How it connects to margin of safety |
|---|---|---|
| Margin of safety | The gap between intrinsic value and market price | The cushion itself |
| Intrinsic value | The estimated worth of a share’s business | The higher reference point in the comparison |
| Discounted cash flow analysis | One method for estimating intrinsic value | Used to produce the estimate; not universally accepted on its own |
| Comparable-company analysis | Estimating value by comparing with similar companies | Another method for producing the estimate |
| Earnings-based valuation | Estimating value from a company’s profits | A third method; no single method is universally accepted |
| Competitive moat | A durable advantage that protects a company from rivals | A trait of the high-quality companies investors are advised to pair with the margin |
Why is the gap between price and value called a margin of safety?
The concept was introduced by Benjamin Graham and later widely applied by Warren Buffett. The arithmetic is simple. Subtract the market price from the estimated intrinsic value, and the result is the margin in rupees per share. Dividing that figure by the intrinsic value gives the margin as a percentage.
The logic rests on the fact that estimates can be wrong. A buyer who pays well below the estimated value has room for the estimate to be too high and still not lose ground on paper. A buyer who pays about what the business is estimated to be worth has no such room, and any error in the estimate falls directly on the buyer.
How do investors estimate intrinsic value?
Intrinsic value is commonly estimated in three ways. Discounted cash flow analysis projects the cash a business is expected to generate in future and converts it into a value today. Comparable-company analysis compares the business with similar listed companies. Earnings-based valuation starts from the company’s profits, meaning the money left after expenses, and values the business relative to them.
No single method is universally accepted. The same share can produce different intrinsic values depending on the method and on the assumptions inside it. This matters because the margin of safety is only as reliable as the estimate it is measured against.
What does the cushion look like in numbers?
The following is a hypothetical example with invented figures, not a real company or market quote. Suppose an investor’s estimate of a share’s intrinsic value is ₹200, and the market price is ₹150. The margin of safety is ₹50 per share, which is 25% of the estimated value (₹50 divided by ₹200).
Now suppose the estimate was too high and the true value is ₹140. The price of ₹150 is then ₹10 above the value, so the cushion has disappeared and turned negative. In this example, a ₹60 error in the estimate was larger than the ₹50 margin, and the buyer would have paid more than the business was worth.
Where does the cushion fall short?
The margin of safety does not guarantee a gain or prevent a loss. It is a buffer, and a buffer can be smaller than the problem it is meant to absorb. In the example above, a valuation error of ₹60 wiped out a ₹50 margin.
Several risks remain even when the margin looks wide. A company may suffer a setback that lowers the value itself, which reduces the estimate on which the margin was calculated. Market volatility can push the price down further while the business is still the same. The estimate itself is a judgement, and two careful analysts can reach different figures for the same share.
Why are investors advised to pair it with quality?
Investors are advised to pair a margin of safety with high-quality companies, such as those with a competitive moat, rather than buying weak businesses simply because they are cheap. A competitive moat is a durable advantage, such as a strong brand or cost edge, that helps a company defend its profits against rivals. A business with such an advantage may be more likely to deliver the cash flows or earnings that the estimate assumes.
A cheap share in a weak business carries a specific catch. Its low price may reflect falling sales or shrinking profits, and the intrinsic value estimate may be too generous. Investors sometimes call such shares value traps, meaning shares that look cheap but keep getting cheaper because the underlying business is declining. A wide gap between price and value does not protect against this on its own.
Frequently asked questions
Who introduced the margin of safety concept?
The concept was introduced by Benjamin Graham and later widely applied by Warren Buffett. Both names are closely tied to the idea of buying shares below their estimated intrinsic value.
Is a margin of safety a guarantee against losses?
No. It is meant to act as a cushion against errors in valuation estimates, sudden company setbacks, and market volatility. A cushion can be smaller than the error it is meant to absorb.
Is a cheap share always a safe one?
Not necessarily. Investors are advised to pair a margin of safety with high-quality companies, such as those with a competitive moat, rather than buying weak businesses simply because they are cheap.
How do investors estimate intrinsic value?
Intrinsic value is commonly estimated through discounted cash flow analysis, comparable-company analysis, or earnings-based valuation. No single method is universally accepted.
Sources and last check
Facts in this article were checked against the sources below on 3 November 2026. Rules and figures can change; check the primary source before acting.
- groww.in (broker education)
- dhan.co (broker education)
- kotakneo.com (broker education)
- upstox.com (broker education)
- icicidirect.com (broker education)
This article is general information, not investment advice. MyFinanceBandhu is not a SEBI-registered investment adviser.
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