What Intrinsic Value Means
The intrinsic value of a share is an estimate of what the share is actually worth, derived from the underlying business, its earnings power, its assets, and the cash it can return to owners over time. It is deliberately separate from the market price, which is simply the last price at which a buyer and seller agreed on the exchange.
The whole point of estimating intrinsic value is to compare it against price. If intrinsic value is meaningfully higher than the market price, the share may be undervalued; if it is lower, the share may be overvalued. Price is a fact you can read off the screen. Intrinsic value is a judgement you have to build.
- Market price — what the share trades at right now; volatile, sentiment-driven, observable.
- Intrinsic value — what the business is worth on fundamentals; stable over short periods, estimated, never exact.
- The gap between the two is where a value investor looks for opportunity.
Intrinsic value sits alongside other valuation anchors. Asset-based measures such as book value per share and ratios such as the P/E ratio are quicker shortcuts, but intrinsic value tries to value the whole stream of future cash a share entitles you to.
The DCF Intuition
The most rigorous way to think about intrinsic value is the discounted cash flow (DCF) idea: a business is worth the sum of all the cash it will hand its owners in the future, with each future rupee discounted back to what it is worth today.
A rupee received five years from now is worth less than a rupee in your hand today, because today's rupee can be invested and earn a return. So future cash is shrunk by a discount rate that reflects the return you demand for the risk and the wait.
Intrinsic Value = Σ [ Cash Flow in year t ÷ (1 + r)^t ]
Here r is the discount rate and t is the number of years out. The relevant cash flow is usually free cash flow — the cash left after the business has paid for the investment it needs to keep running and growing.
- Estimate the free cash flow the business will generate each year for a forecast period.
- Add a terminal value for the cash beyond the forecast period.
- Discount every figure back to the present using the rate r.
- Sum them to get the value of the business, then divide by the share count for per-share intrinsic value.
DCF is conceptually correct but heavy on assumptions — growth, margins, discount rate, terminal value. That is exactly why simpler shortcuts such as the Graham formula became popular: they compress the same intuition into one line.
The Benjamin Graham Formula
Benjamin Graham, the father of value investing, offered a back-of-the-envelope formula to estimate the value of a growth share from its earnings and expected growth. The original version is:
V = EPS × (8.5 + 2g)
Here V is intrinsic value per share, EPS is the trailing twelve-month earnings per share, 8.5 is the P/E multiple Graham assigned to a no-growth company, and g is the expected annual earnings growth rate over the next seven to ten years, entered as a plain number (so 12% growth means g = 12).
Graham later revised the formula to adjust for the level of interest rates, since the appropriate multiple for any business depends on the yields available on safe alternatives. The revised version is:
V = [ EPS × (8.5 + 2g) × 4.4 ] ÷ Y
The new terms are 4.4, the average yield on high-grade (AAA) corporate bonds at the time Graham wrote, and Y, the current yield on AAA corporate bonds. When bond yields rise above 4.4, the multiplier 4.4 ÷ Y falls below 1 and the estimated value drops — higher safe yields make future earnings less valuable. When yields fall, the estimate rises.
Graham himself cautioned that this formula was not a recommendation to value stocks mechanically; he presented it to illustrate how growth assumptions translate into multiples. Treat it as a sanity check, not a verdict.
Worked Example (Illustrative)
Suppose an Indian company reports trailing EPS of ₹40, you expect long-term earnings growth of 12% a year, and the prevailing AAA corporate bond yield in India is around 7% (a realistic level in 2026). All figures below are illustrative.
| Input | Value |
|---|---|
| Trailing EPS | ₹40 |
| Expected growth g | 12 (i.e. 12%) |
| No-growth P/E base | 8.5 |
| Graham's reference AAA yield | 4.4 |
| Current AAA bond yield Y | 7.0 (i.e. 7%) |
| Current market price | ₹1,500 |
Step 1 — the original formula: V = 40 × (8.5 + 2 × 12) = 40 × (8.5 + 24) = 40 × 32.5 = ₹1,300. Step 2 — the bond-yield-adjusted formula: multiply by 4.4 ÷ 7.0 = 0.629, giving V = 1,300 × 0.629 ≈ ₹818. Because the current 7% yield is well above Graham's 4.4 benchmark, the adjusted estimate is materially lower than the unadjusted one.
Step 3 — compare with price: the market price is ₹1,500, while the adjusted intrinsic value is roughly ₹818. On these assumptions the share looks expensive — price is nearly double the estimated value — so a disciplined investor would not buy at ₹1,500. The conclusion is only as good as the 12% growth assumption, which is the single most sensitive input.
The Margin-of-Safety Principle
Because intrinsic value is an estimate and you can be wrong, Graham insisted on a margin of safety: buy only when the market price is comfortably below your estimate of intrinsic value, so an error in your assumptions still leaves you protected.
Margin of Safety (%) = (Intrinsic Value − Market Price) ÷ Intrinsic Value × 100
If you estimate intrinsic value at ₹1,000 and the share trades at ₹650, the margin of safety is (1,000 − 650) ÷ 1,000 = 35%. That cushion absorbs modelling mistakes, unexpected bad news, and the simple reality that the future is uncertain. Many value investors look for a margin of safety of 25% to 50% before committing.
- It protects against errors in your own forecasts of growth and cash flow.
- It protects against business deterioration you did not foresee.
- It improves your return if you are right, because you bought below value.
- The riskier or less predictable the business, the larger the margin you should demand.
Margin of safety is the bridge between an estimate and a decision. Intrinsic value tells you roughly what a share is worth; the margin of safety decides whether the gap to the market price is wide enough to act on.
Why Every Estimate Is Assumption-Dependent
There is no single "correct" intrinsic value. Every method — DCF or Graham — rests on inputs you have to assume, and small changes in those inputs swing the answer a lot. In the worked example, raising the growth rate from 12% to 15% lifts the unadjusted value from ₹1,300 to 40 × (8.5 + 30) = ₹1,540, an 18% jump from one assumption.
- Growth rate (g) — the most sensitive input; high assumed growth inflates value quickly and is the easiest to get wrong.
- Discount rate / bond yield (Y) — reflects required return and interest rates; rising yields cut value.
- Quality of EPS — one-off gains, accounting choices, and non-cash items can distort the earnings you feed in.
- Forecast horizon and terminal value — in a DCF, most of the value often sits in the hard-to-estimate terminal period.
Practical discipline: run more than one scenario, sanity-check the implied multiple against peers, and lean on conservative inputs. Cross-reference the estimate with quality signals such as return on equity and balance-sheet strength like the debt-to-equity ratio. Intrinsic value is a tool for thinking clearly about price, not a precise number to defend.