How to Analyse a CIM: A Complete Guide for M&A Buyers

What a CIM is for, and what that means for reading it

A Confidential Information Memorandum — an Information Memorandum, or IM, in most UK processes — is the document a seller's adviser prepares to present a business to prospective buyers after they have signed a non-disclosure agreement. It describes the company, its market, its management and its financial history, and it exists to generate indications of interest at the highest price the market will bear. See what is an investment memorandum for how it relates to the teaser and the data room.

Two things follow. The figures in a well-prepared CIM are usually accurate, because an adviser who puts a false number in a memorandum has a short career. And every other choice — which years to show, which adjustments to make to earnings, which risks to mention and how, what to leave out — was made by the side that wants the highest price. Analysing a CIM means reading it for both at once: trusting the arithmetic and interrogating the selection.

The method: extract, challenge, price, decide

Experienced buyers read a memorandum in a fixed order, because each step needs what the last one produced. Extract the facts first, before forming a view. Challenge the story against those facts. Price the business on the facts, not the story. Then decide, and record why. Reading front to back and forming an impression as you go is how a well-written document sells you something.

Step 1: extract the facts into one place

Pull the following out of the document and into a single record — a screening sheet, or the deal record if you use software — before you form any view. Where the memorandum does not state something, write "not stated". The gaps are as informative as the figures.

The business

• Legal entity and trading name, registered number, location and sites
• What it sells, to whom, and how it is paid: contracted, project, subscription or transactional revenue
• Year established, headcount, and the management team with tenure and who stays
• Ownership, and the stated reason for sale
• The asking price or guide, and its basis: cash-free, debt-free; property in or out; any stated expectations on structure

The financial history, by year

• Revenue, gross profit and gross margin
• Reported EBITDA, each add-back individually, adjusted EBITDA, and seller's discretionary earnings where quoted
• Which years are audited, management-prepared or forecast — never merge them
• Capital expenditure and depreciation; working capital where shown
• Net debt and cash at the latest date

The shape of the earnings

• Recurring revenue as a share of the total, and the definition of "recurring" the document uses
• The largest customer and the top five as a share of revenue, with contract terms and renewal dates
• Supplier concentration and any single-source inputs
• The growth rate claimed, and whether it is historical or projected
• Owner involvement: the relationships, technical knowledge and decisions that sit with the person leaving

Step 2: challenge the story against the numbers

With the facts in one place, read the narrative sections again and test each claim against them. The memorandum will describe a resilient, growing, well-managed business with a loyal customer base. The figures will tell you which of those words are earned.

Adjusted earnings

The gap between reported and adjusted EBITDA is where most of the value in a memorandum is created or destroyed. A normalisation of the owner's salary to a market rate is legitimate and expected. A long list of "one-off" legal, restructuring or bad-debt costs that appears in every year shown is a recurring cost wearing a disguise. Capitalised development costs, related-party rent below market, and revenue recognised early all move the figure. Ask, for each adjustment: is there a reason, is there evidence, and would it survive a buyer's accountant?

The growth story

Compare the growth rate in the executive summary with the one the annual figures show. A summary that quotes a compound rate from the best year to the projected year, over a flat middle, is not lying and is not telling you the truth either. A forecast that breaks from the historical trend needs a stated cause — a new contract, a price increase, a capacity change — and the cause needs evidence. Label every forecast as a projection when you carry it into a model, and price it as one.

Concentration and dependence

If the top customer is not quantified, assume the figure is uncomfortable and ask. Above roughly a fifth of revenue, one customer changes price, structure and the diligence plan; the contract terms and renewal dates matter as much as the percentage. Supplier concentration and key-person dependence are the same question in different clothes: what is the earnings figure without this relationship, and who holds it? Customer concentration risk in M&A covers how to measure and price it.

What is missing

• A year absent from the history, or a period of less than twelve months
• A profit and loss shown without a balance sheet, or EBITDA shown without working capital
• Concentration described in words but never in numbers
• No mention of the obvious competitor, regulator or dominant supplier
• Claims — "market leader", "sticky customers", "significant upside" — with nothing behind them
• A reason for sale contradicted elsewhere in the document

Step 3: price the business on the facts

Convert the guide price to an implied EV/EBITDA multiple on reported earnings, on the seller's adjusted earnings, and on your sceptical adjusted figure. The three multiples frame the negotiation before it starts. Then form your own view of value by more than one method: an earnings multiple on your adjusted figure, a discounted cash flow if the forecast is credible enough to model, net assets as a floor, and comparable transactions if you have any. Business valuation methods used in M&A explains when each applies and why the answers differ.

For a first pass the point is not precision. It is to know whether the guide price sits inside, at the top of, or above the range your methods support — and therefore whether the conversation is about price, about structure, or not worth having.

Step 4: decide, and write the reasons down

A first pass ends in one of three honest positions. Pursue: the business fits the mandate, the price is in range, and the risks are ones diligence can bound. Pass: it does not fit, the price is out of range on any sceptical view, or a risk is structural. Pursue subject to questions: it could fit, and specific answers decide it — which is the most common position and the one that produces the best request lists.

Whichever it is, record the position and the reasons on the deal. A memorandum you pass on today often comes back in a year at a lower price, and the reasons you passed are the first thing you will want to read. If you pursue, the questions you wrote in step 2 are the first tranche of the diligence request list — see the M&A due diligence checklist.

How long a first pass takes

By hand, a thorough first pass on a mid-market memorandum is measured in hours, most of them spent finding, transcribing and reconciling rather than thinking: reading the document, spreading three to five years of financials into a screening model, checking the adjustments, and writing up a view. The exact time depends on the length of the memorandum and the quality of its financial appendix.

That cost shapes behaviour. A team receiving more memoranda than it can read properly either reads them badly or reads a subset chosen by whoever sent it. The purpose of automating the extraction step — which is what AI CIM analysis should mean — is to spend the judgement on every opportunity rather than on the ones that arrived in a quiet week. The judgement itself, in steps 2 to 4, remains yours.

The one-page version

The CIM review checklist is this guide reduced to a list you can work through beside the document, and the CIM analysis checklist is the exhaustive version with every item to extract, verify and question.