Valuation Multiples Primer | Stock Dossier Lab

Purpose

The question this method should answer

State which operating assumptions the valuation already requires before calling a security cheap or expensive.

The method is complete only when another reader can reproduce the calculation and understand what evidence would overturn it.

Step-by-step method

Four passes through the evidence

Step 1

Choose the correct denominator

Write the source, period, calculation, and result before moving to the next step.

Step 2

Normalize the cycle

Write the source, period, calculation, and result before moving to the next step.

Step 3

Run a range, not one point

Write the source, period, calculation, and result before moving to the next step.

Step 4

Compare implied expectations

Write the source, period, calculation, and result before moving to the next step.

Evidence hierarchy

Prefer the source closest to the claim

1. Filed statementAudited or filed financial statements and footnotes.

2. Company documentInvestor presentation, prepared remarks, and official KPI definitions.

3. Comparable calculationReproducible peer or benchmark analysis with a stated period.

4. InterpretationThe conclusion, uncertainty range, and invalidation test.

Reader worksheet

Record the chain of reasoning

Field	Research note	Provenance
Research question	____________________________	Source URL, filing page, and as-of date
Current evidence	____________________________	Source URL, filing page, and as-of date
Peer or benchmark	____________________________	Source URL, filing page, and as-of date
Counter-evidence	____________________________	Source URL, filing page, and as-of date
Next checkpoint	____________________________	Source URL, filing page, and as-of date
Invalidation rule	____________________________	Source URL, filing page, and as-of date

Failure modes

Ways this method can mislead

Comparing unlike business models
Using stale share counts
Ignoring debt, dilution, or reinvestment
Changing the question after the outcome becomes visible.
Reporting a raw return without the market or sector benchmark.

Primary sources first

Evidence trail

Documents and market data change. Verify the latest filing and state the observation date before relying on a conclusion.

Practical application

How to complete Valuation Multiples Primer

Start with a decision-sized question: Which operating assumptions are embedded in the valuation, and how sensitive is the result to each one? A broad theme is not yet a research result. Name the company or peer set, reporting period, unit, accounting basis, and the date on which the answer will be reviewed.

Research stage	What a complete result includes	Quality check
1. Scope	One claim, one decision it informs, the measurement period, and the evidence that could contradict it.	Could two readers interpret the question in the same way?
2. Primary evidence	Use reported diluted share count, net debt, segment economics, normalized cash flow, peer definitions, and an explicit forecast bridge. Record the document, filed or published date, covered period, page or section, and URL.	Is the source close enough to the claim, or is it merely repeating another source?
3. Comparable calculation	Match numerator and denominator, use the same period across peers, and show dilution, cyclicality, and capital intensity. Preserve the raw inputs beside the result.	Would a change in definition, fiscal calendar, currency, or business mix reverse the comparison?
4. Interpretation	Separate reported fact, calculation, management explanation, analyst inference, uncertainty, and evidence that would change the view.	Can another reader reproduce the number without guessing an input?

Illustrative reasoning

What the finished analysis should sound like

Instead of publishing one fair-value point, show how a change in margin, reinvestment, growth, or discount rate changes the range and identify the assumption doing most of the work. This is an illustrative reasoning pattern, not a factual statement about a current company. Replace it with dated, sourced company evidence before publication.

Strong answer

States the value, period, definition, calculation, benchmark, uncertainty, and next checkpoint. It identifies both confirming and conflicting evidence and explains why the chosen source is appropriate.

Weak answer

Repeats a management adjective, mixes periods, uses an adjusted value on one side and a reported value on the other, or presents a precise conclusion without exposing the inputs.

Publication test

Five checks before relying on the result

Definition: write exactly what is included and excluded.
Period: align dates and distinguish quarterly, year-to-date, trailing, and forward figures.
Source: link the primary document and retain the page or section reference.
Counter-evidence: document the strongest reasonable alternative explanation.
Update rule: name the next filing, event, or threshold that requires a fresh conclusion.

Valuation Multiples Primer is useful only when the trail remains understandable after the market outcome is known. Keep the original question and inputs so later review measures the method rather than rewriting the premise.