Intrinsic Value | Investing Glossary

What it is

Intrinsic value is what a rational buyer would pay for a business based on the cash flows it will generate over its lifetime, discounted back to today's value. It has nothing to do with what other people are currently paying in the market. It is, in Benjamin Graham's formulation, what the business is worth "on the basis of facts and analysis."

The gap between intrinsic value and market price is where investment opportunities — and investment mistakes — are born.

Where the concept comes from

Graham introduced the idea in The Intelligent Investor (1949) and formalised it with his concept of margin of safety: buy only when the market price is significantly below your estimate of intrinsic value, so that even if you're wrong about the business, you have a buffer.

Warren Buffett, Graham's most successful student, distilled it further: intrinsic value is "the discounted value of the cash that can be taken out of a business during its remaining life." Everything else — multiples, ratios, price targets — is either a shortcut toward or a distraction from that calculation.

How it's calculated

There is no universally agreed formula, which is part of what makes it both powerful and abused. The most rigorous approach is a Discounted Cash Flow (DCF) analysis:

Estimate free cash flow for each of the next 10 years (based on revenue growth, margin, and CapEx assumptions)
Estimate a terminal value representing all cash flows beyond year 10 (using a perpetuity growth formula)
Discount all future cash flows back to today using a discount rate (the required return, typically your estimate of WACC)
Sum the discounted cash flows. That's the intrinsic value of the enterprise.
Subtract net debt and divide by shares outstanding to get intrinsic value per share.

The problem is obvious: the output is only as reliable as the inputs. Small changes in the long-term growth rate or discount rate produce large swings in the intrinsic value estimate. A company growing at 8% annually for ten years, discounted at 10%, yields a meaningfully different answer than the same company growing at 6% discounted at 11%.

Why it's still worth attempting

The exercise of estimating intrinsic value forces disciplined thinking about the business — what drives cash flows, what are the plausible growth scenarios, what risks threaten the model. Most investors who go through this process find they either become much more confident in a thesis or identify a fatal flaw they'd previously missed.

Buffett has said he doesn't need a precise intrinsic value figure — just a rough sense of whether the current price is substantially above or below it. If a business appears worth between £8 and £12 per share and it's trading at £5, the precision of the estimate is less important than the direction of the gap.

The margin of safety

The margin of safety is the buffer between intrinsic value and price. If you estimate intrinsic value at £10 per share and buy at £7, you have a 30% margin of safety. If the business performs worse than expected, or your assumptions were slightly wrong, the cushion absorbs some of the error.

Graham advocated for a minimum 33% discount to intrinsic value. Conservative value investors today typically seek 20–40%, depending on the certainty of the business model. For a highly predictable business with stable cash flows (a utility, a well-established FMCG company), a 15% margin of safety may be sufficient. For a cyclical business or a company undergoing transformation, 40–50% is more appropriate.

The limits

Intrinsic value is an estimate, not a fact. It depends on uncertain future events. Two experienced analysts with identical financial data can arrive at intrinsic value estimates 30–40% apart, because their assumptions about growth, discount rates, and terminal value differ.

The practical implication: never use a single intrinsic value estimate as a precise buy/sell trigger. Instead, build a range — a bear case, a base case, and a bull case — and understand where the current price sits relative to all three.

**The analyst's rule:** If the stock looks cheap in your bear case, you have a very strong argument for owning it. If it only looks cheap in your bull case, you're paying for optimism and assuming everything goes right.

Not financial advice. Intrinsic value calculations involve significant assumptions and uncertainty.