How to Calculate the Intrinsic Value of a Stock (Three Methods)

What intrinsic value means

A share is a claim on a stream of future cash: dividends, buybacks, and eventually whatever is left when the business is sold or wound up. Its intrinsic value is that stream discounted to today at the return you require for the risk. The price on the screen is what the last buyer and seller agreed; intrinsic value is what the business is worth regardless of what anyone agreed. The two are related but not the same, and the difference between them is where investment returns come from.

Because the cash flows are in the future, every intrinsic value depends on forecasts, and every forecast can be wrong. So the goal is not a precise number but a defensible range, and a clear view of which assumptions the range rests on. The stock valuation guide covers the full toolkit; here we work one company through three methods.

Method 1: discounted cash flow (worked example, illustrative)

Harbor Foods is a fictional packaged-food company. Last year it produced $100 million of free cash flow (operating cash flow less capital spending). We assume that grows 8% a year for five years, then 5% a year for five more, then 2.5% forever, and we discount everything at 9%. It carries $200 million of net debt and has 50 million diluted shares, and the stock trades at $30.

Against a $30 price that is about 31% upside. Note what the table also says: 58% of the value comes from the terminal value, meaning from cash flows after year ten. That is normal for a DCF, and it is the reason the terminal assumptions deserve as much scrutiny as the near-term ones. These are the default inputs of the stock valuation calculator, so you can change any of them and watch the value move; the DCF model example walks through the mechanics line by line.

Method 2: earnings power and a justified multiple

A simpler method asks what a steady stream of cash is worth if it grows at a modest, permanent rate. For a business that pays out all its free cash flow and grows it at g, value per share = next year's free cash flow per share ÷ (required return − g). Harbor's free cash flow next year is about 100 × 1.08 = $108 million, or $2.16 a share. At a 9% required return:

This lands below the DCF because it gives Harbor no credit for the five years of 8% growth. That is useful information rather than a contradiction: the difference between $33 and $39 is what the above-trend growth is worth, and if you are not confident in that growth, the lower figure is the one to anchor on. The same arithmetic explains what a "fair" P/E is, which the good P/E ratio article develops.

Method 3: reverse the question with a reverse DCF

Instead of forecasting cash flows and producing a value, a reverse DCF starts from the price and solves for the growth it requires. Holding the same 9% discount rate, 2.5% terminal growth and ten-year horizon, Harbor's $30 price (an enterprise value of $1.7 billion) is justified by free cash flow growing at just 3.5% a year. The forecast behind the $39 was 8% then 5%. So the question is no longer "is $39 right?" but "can Harbor grow faster than 3.5% a year for a decade?", which is a question about the business that evidence can answer.

This is the most useful of the three methods for deciding, because it isolates the one thing you have to believe. The reverse DCF calculator does the solving for any inputs, and Belief Gap runs it on a listed company's own filed numbers next to the consensus forecast.

The inputs that matter most

Not every assumption carries equal weight. On Harbor's DCF, holding everything else fixed:

One percentage point on the discount rate moves the answer by roughly a fifth in either direction, more than any plausible argument about next year's margin. Terminal growth matters next. The first five years of growth matter less than people expect because they are a small part of a value dominated by the terminal period. The practical lesson: decide your required return and your view of long-run growth deliberately, write them down, and do not let a spreadsheet choose them by default.

From a number to a decision

Three methods gave Harbor a range of roughly $33 to $48, with a central estimate near $39, against a price of $30. What to do with that:

1. Demand a discount. The gap between price and value is your protection against being wrong. The margin of safety article sets out how large it should be and why it depends on how predictable the business is.
2. Write down what has to be true. Harbor's $39 needs 8% growth for five years and a stable 9% required return. Those become the conditions of an investment thesis, to be checked each quarter rather than assumed.
3. Prefer the reverse question. "Can it beat 3.5% a year?" is easier to answer and harder to fool yourself with than "is it worth $39?".
4. Keep the range. A single number invites false precision. A range, with the assumption that drives each end, tells you what to watch.

VALYSTR's Stock Analyzer builds bear, base and bull cases on a company's own filed financials and shows the sensitivity table alongside, so the range is part of the answer rather than an afterthought.