What it means
Every share is a claim on a slice of a company's future cash. Stock valuation puts a number on that claim, either by discounting expected future cash flows back to today's money or by comparing the business with similar companies that already carry a market price.
The reason this matters well outside the investment world is that the same logic sits underneath a lot of ordinary corporate decisions. Employee share schemes, buying out a departing founder, pricing a funding round and testing acquired goodwill for impairment all rest on somebody's view of what a share is worth.
Two families of method dominate. Intrinsic methods, such as discounted cash flow and the dividend discount model, build value upward from forecast cash and a required rate of return.
Relative methods borrow a multiple observed elsewhere, usually price to earnings or enterprise value to EBITDA (earnings before interest, tax, depreciation and amortisation), and apply it to the company in question. The dividend discount model is the cleanest illustration because it needs only three inputs: next year's dividend, the return investors require and the long term growth rate.
It works well for mature, steady payers such as utilities and badly for young companies that distribute nothing at all. The uncomfortable truth is that small changes in assumptions move the answer a great deal.
Shifting a growth rate by a single percentage point can swing a valuation by a fifth or more, which is why careful analysts publish a range and a set of scenarios rather than one confident number.
In practice
Real-world examples.
Example
A family owned engineering firm needs to buy out a retiring shareholder who holds 20%. The adviser applies a 6 times multiple to EBITDA of $3,000,000, giving an enterprise value of $18,000,000, deducts $4,000,000 of bank debt to reach $14,000,000 of equity, and prices the stake at $2,800,000.
Example
A software company grants share options to new engineers and must set a fair strike price. Because there are no dividends and profits are still negative, the board values the business on a multiple of recurring revenue and updates the figure after every funding round.
Example
A pension fund analyst screens twenty listed retailers by building a simple discounted cash flow for each. Three come out more than 30% below their traded price, and those three go on the shortlist for deeper work rather than straight into the portfolio.
Think of it
“Stock valuation is like determining what a share of a business is really worth, not just what people are paying for it today.
Formula
Calculation
Value per share = next year's dividend / (required return - growth rate)
Take a mature water utility expected to pay a dividend of $2.40 per share next year. Investors in that kind of business require a 9% annual return, and the dividend has grown steadily at about 4% a year.
Value per share = $2.40 / (0.09 - 0.04) = $2.40 / 0.05 = $48.00
If the shares currently trade at $42.00, the model says they are $6.00 cheap, which is 12.5% below the estimated value of $48.00. Push the growth assumption down to 3% and the estimate falls to $2.40 / 0.06 = $40.00, so the same share now looks $2.00 expensive. That reversal from one percentage point of growth is exactly why a single point estimate should never be quoted on its own.Case study
Seen in the real world.
The following is an illustrative and entirely fictional example. Harbourline Grocers, an invented regional supermarket chain, was approached by a private equity buyer offering $9.00 a share for a business whose stock had drifted around $8.20 for two years. The board's first instinct was that a 10% premium sounded generous.
The finance director instead ran a proper valuation. Free cash flow was forecast at $34,000,000 next year, growing at 3%, against a 8% cost of capital, which gave an enterprise value of $34,000,000 / 0.05 = $680,000,000. After deducting $80,000,000 of net debt and dividing by 60,000,000 shares, the intrinsic estimate came out at $10.00 a share.
Armed with that fictional analysis, Harbourline's board rejected the opening offer and settled at $10.40 after the buyer improved its bid twice. The lesson the illustrative case is meant to carry is that a premium to the market price is not the same thing as a fair price.
Watch out
Common mistakes.
- Treating the market price as proof of value, which turns valuation into a circular exercise that can never identify a bargain or a bubble.
- Building a discounted cash flow with fifteen tidy forecast years, when the real answer is dominated by the terminal value and the discount rate.
- Comparing a company against a peer multiple without adjusting for differences in growth, margin and debt, so the comparison quietly measures the wrong thing.
Questions
People also ask.
Which method should a non specialist trust most?
Neither on its own; run an intrinsic model and a peer multiple, and treat a wide gap between them as a signal that one of your assumptions needs work.
Does stock valuation apply to private companies?
Yes, and it matters more there, because without a traded price a valuation is the only reference point for share transfers, tax and option pricing.
Why do two analysts get very different answers from the same accounts?
Because the growth rate, discount rate and margin assumptions are judgements rather than facts, and modest differences in each compound into large differences in value.
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