Financial Management · Efficient market hypothesis (EMH) and practical considerations in the valuation of shares

Practical Considerations in Share Valuation for ACCA FM

Updated 11 October 2026 · Fact-checked

Valuation models give an estimate of intrinsic value, built on forecasts and assumptions. Market price is what buyers and sellers agree today. They differ because of poor information, marketability, sentiment, block size, control and model limits. In FM, name the factor, link it to the scenario, and state its effect on value.

Understand Practical Considerations in Share Valuation

A share has two kinds of value. Intrinsic value is what the share is worth based on its expected future cash flows, dividends or assets. Market price is the price at which the share trades now. A model such as the dividend valuation model, P/E method or discounted cash flow gives you the first. The stock market gives you the second.

The two rarely match. Every model needs inputs: a growth rate, a cost of equity, an earnings figure, a comparable company. Each input is an estimate. A small change in growth or discount rate can change the value a lot. So a model value is a range, not a fact.

Markets also behave in ways models ignore. If the market is not fully efficient, prices can react slowly or overreact to news. Market sentiment (optimism or panic) can push prices away from fundamentals for a time. Investors may also hold information that you do not, such as news about a rival or a new contract.

Practical features of the shares matter too. Shares in an unquoted company are hard to sell, so buyers pay less. This is a marketability or liquidity discount. A small stake gives no control, while a large stake or a full takeover may carry a control premium. The size of a trade can also move the price.

In the exam you are rarely asked to calculate here. You are asked to discuss. A good answer picks the factors that fit the scenario, explains the direction of the effect, and says what the finance manager should do: use more than one method, test the assumptions and treat the answer as a range.

Key rules to remember

Intrinsic value versus market price: Over/undervaluation = Market price − Model value; Positive means the market price is above your model value (apparently overvalued). Negative means apparently undervalued. It only holds if the model inputs are reliable.
Dividend valuation model (constant growth): P₀ = D₀ × (1 + g) ÷ (Ke − g); Valid only if Ke > g and growth is constant. Very sensitive to g, a key limitation.
P/E valuation: Value per share = EPS × P/E ratio; The P/E must come from a comparable company. Unquoted firms usually get a discounted P/E because of lower marketability.
Earnings yield: Earnings yield = EPS ÷ Share price × 100%; The inverse of the P/E ratio.

How to solve Practical Considerations in Share Valuation questions

Use this method for any discussion question on why a model value and a market price differ, or why a valuation may be unreliable.

1Read the scenario and note what is being valued: a quoted share, an unquoted company, a minority stake or a whole business.
2Identify the method used and list its inputs, such as growth rate, cost of equity, earnings or comparable P/E.
3For each input, say why it is uncertain or may be wrong in this scenario.
4Add market factors: information gaps, market efficiency, sentiment, marketability, size of the holding and control.
5State the direction of each effect on value, for example a lower value for an unquoted firm.
6Explain what the reader should do: use several methods, run sensitivity checks and treat the result as a range.
7Finish with a one-line conclusion that answers the exact question asked.

Quickest way: Four-box checklist

When to use it: Use this when you have a few minutes on a discussion part or an objective question asking for reasons for a price gap.

Box 1, Inputs: growth, discount rate, earnings, comparables.
Box 2, Information: who knows more, and is the market efficient?
Box 3, Market: sentiment, liquidity, trade size.
Box 4, Ownership: control, minority stake, unquoted status.
Pick the two or three boxes that fit the scenario, give a reason and a direction for each, then add one line on using a range of values.

Common mistakes in Practical Considerations in Share Valuation

Saying the market price is always right and the model is always wrong, or the reverse.
Students want a simple winner.
Fix: Say both are estimates. The market reflects what buyers and sellers agree now, and the model reflects stated assumptions.
Listing generic points that ignore the scenario.
Students recall a memorised list.
Fix: Tie each point to a fact in the question, such as an unquoted company, a small stake or an uncertain growth rate.
Forgetting to state the direction of the effect.
Students name a factor but stop.
Fix: Always add whether value goes up or down, for example lack of marketability lowers value.
Applying a quoted company's P/E to an unquoted company without adjustment.
The formula looks simple.
Fix: Point out that the unquoted firm is less liquid and often riskier, so a lower P/E is normally used.
Using the dividend growth model when g is not below Ke or growth is not stable.
Students plug in numbers without checking assumptions.
Fix: Check Ke > g and that growth is reasonably constant. If not, say the model is unreliable.
Ignoring control when valuing a stake.
Students treat every share as equal.
Fix: Say a small holding has no control, while a controlling stake may justify a premium.

Worked examples

Example 1

Sable Ltd is an unquoted company with earnings per share of $0.80. A similar quoted company has a P/E ratio of 12. Sable's directors value it using that P/E, then reduce the P/E by 25% for lack of marketability. Calculate the value per share and explain two practical reasons the figure may differ from what a buyer would actually pay.

Show the solution

Adjusted P/E = 12 × (1 − 0.25) = 9.
Value per share = EPS × P/E = $0.80 × 9 = $7.20.
Reason 1: the 25% reduction is a judgement. A buyer may demand a bigger or smaller discount depending on how easily the shares could be resold.
Reason 2: the quoted company is only a rough comparable. Differences in growth, risk, gearing and size mean its P/E may not suit Sable.
Also note that a buyer of a controlling stake may pay a premium, while a buyer of a small stake may pay less.

Answer: Value per share is $7.20. The price actually paid may differ because the marketability discount is subjective, the comparable company is imperfect, and the size of the stake and control affect what a buyer will pay.

Example 2

Delta plc's last dividend was $0.50 per share. Its cost of equity is 10% and dividends are expected to grow at 4% a year. The share trades at $10.00. Calculate the dividend model value and give three reasons why the market price may differ.

Show the solution

P₀ = D₀ × (1 + g) ÷ (Ke − g).
D₁ = 0.50 × 1.04 = $0.52.
P₀ = 0.52 ÷ (0.10 − 0.04) = 0.52 ÷ 0.06 = $8.67 (to the nearest cent).
The market price of $10.00 is above the model value by $1.33.
Reason 1: growth sensitivity. If g were 5%, D₁ = 0.525 and P₀ = 0.525 ÷ 0.05 = $10.50, so a one-point change in g moves value a lot.
Reason 2: investors may have information or expectations about future earnings, such as a new contract, that the model's constant growth ignores.
Reason 3: market sentiment or limited efficiency may push the price above fundamental value for a time. The cost of equity estimate may also be too high.

Answer: Model value is about $8.67 against a market price of $10.00. The gap can come from sensitivity to the growth rate, different information or expectations in the market, and sentiment or inefficiency, so the model value should be used as a guide, not a certain figure.

Exam tips

In discussion parts, write short points in the form factor, reason, effect on value. Each point scores more than a vague list.
Use the scenario facts. If the company is unquoted or the stake is small, say so and link it to marketability and control.
In objective questions, read for the exact wording. Options that say a model is always accurate or the market is always correct are usually wrong.
If a calculation is asked, do it first and show working, then use the discussion to explain why the answer is only an estimate.
Mention sensitivity to growth or discount rate whenever the dividend model or DCF is used. It is a safe and relevant point.

Practice questions from Efficient market hypothesis (EMH) and practical considerations in the valuation of shares

Practical Considerations in Share Valuation in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

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Practical Considerations in Share Valuation: frequently asked questions

What is the difference between intrinsic value and market price?

Intrinsic value is the worth of a share based on expected future cash flows or dividends, as estimated by a model. Market price is the price at which the share trades now. They differ because the model relies on estimates and the market is affected by information and sentiment.

Why do share prices differ from theoretical valuations?

Model inputs such as growth and cost of equity are uncertain, and investors may hold different information or expectations. Sentiment, marketability and the size of the holding also move prices. A model gives one estimate, while the market reflects many views.

What are the main limitations of share valuation models in ACCA FM?

They depend on forecasts, so small changes in growth or discount rates change value a lot. Comparables are rarely identical, and some models need stable growth. Models also may ignore control, liquidity and market sentiment.

Why are unquoted shares usually worth less than quoted ones?

Unquoted shares are harder to sell, so buyers ask for a discount for lack of marketability. Less public information also adds risk. A controlling stake may still command a premium.