Inventory: Where Industrial Deals Quietly Lose Their Price
Multiples get negotiated in the term sheet. Value gets lost three months later, in a spreadsheet arguing about what the stock in the warehouse is actually worth.
In manufacturing transactions, inventory is the single line most likely to move the final price. It is a balance-sheet asset, a working capital component and an EBITDA driver at the same time, so one write-down travels through three places at once. Buyers now test inventory quality earlier in the process than they used to — and sellers who have not prepared for it lose the argument on the buyer's evidence.
This is a sector perspective, not advice on a specific transaction. It sits alongside our other notes on industrial M&A: quality of earnings, customer concentration risk and cross-border deals involving Spanish industrial SMEs.
Why does inventory move the price more than any other line?
Because it is three numbers wearing one coat.
- It is an asset. Write down slow-moving stock and net asset value falls by the same amount.
- It is working capital. That write-down also changes the working capital target the price is set against — so the seller can be charged for the same problem twice if the mechanism is not drafted carefully.
- It is historical margin. If obsolete stock was never provisioned, past cost of goods was understated, which means reported EBITDA was overstated. On a 6× multiple, a €200,000 annual overstatement is €1.2 million of headline price.
Buyers know this. Inventory-related adjustments remain among the most common drivers of EBITDA normalisation and purchase price change in manufacturing deals, and diligence teams are placing weight on working capital discipline earlier in the process than they did five years ago (LBMC).
What makes a materials business harder to read than a widget factory?
A company that makes one part in three sizes has inventory a buyer can age on a spreadsheet. A business built on natural, seasonal, colour-specific materials does not behave that way, and a generalist diligence model will misprice it in both directions.
| What the buyer sees | What it may actually be | What resolves it |
|---|---|---|
| Stock with no movement for 9 months | A dye lot reserved against a named customer programme | The reservation agreement and the programme forecast |
| Wide unit-cost variance in one article | Raw-material price cycles, not sloppy costing | A cost bridge by purchase period |
| Off-season colours held at full cost | Either next season's collection or genuinely dead | The trend and order pipeline behind each lot |
| Work in progress valued at standard cost | Multi-stage process with real conversion value added | Stage-by-stage costing, verified against routings |
| High inventory days vs. sector benchmark | A deliberate service proposition — stock as product | Margin evidence: what the customer pays for speed |
That last row is the one most worth arguing. In materials supply, holding stock is not always inefficiency — it is often the product. A supplier that ships from stock in 24 hours against a competitor's eight-week lead time is monetising its inventory days. But that only reads as strategy if the margin premium is visible in the numbers. If it is not, the same working capital reads as a liability, and the buyer will price it as one.
Locked box or completion accounts — which protects whom?
The mechanism decides when the inventory argument happens, not whether it happens.
| Locked box | Completion accounts | |
|---|---|---|
| Price fixed | At signing, on accounts at a past date | After closing, once actuals are agreed |
| Inventory argued | Before signing | After closing |
| Seller gets | Price certainty | Exposure to a post-deal negotiation |
| Buyer polices | Leakage between box date and closing | The valuation itself |
| Suits | Stable, predictable working capital | Genuinely volatile inventory — common in manufacturing SMEs |
Two practical consequences for a seller. First, if you choose locked box, the inventory policy has to be right before you sign, because there is no true-up to fix it later. Second, if you end up in completion accounts, budget for the timeline: a working capital adjustment takes around two months to settle on average, and a dispute referred to an independent accountant adds roughly 65 days more (Auxo Capital Advisors). Four months of post-closing argument is a real cost, and it lands on the party with less evidence.
What does a prepared seller actually have ready?
None of this is exotic. It is ordinary discipline, dated early enough that it does not look assembled for the buyer:
- A written inventory provisioning policy, applied consistently for at least three years — not introduced in the year of the sale.
- Ageing by article and by lot, with a documented reason for anything over six months: reserved, seasonal, contracted, or genuinely slow.
- A monthly working capital series covering at least 24 months, so seasonality is visible as a pattern rather than discovered as a surprise.
- Reservation agreements linking held lots to named customers and programmes. This is the single document that converts "dead stock" into "committed working capital".
- A physical count recent enough to be credible, reconciled to the ledger, with the variance explained.
- A costing walk from raw material through each conversion stage to finished goods, tied to actual routings.
The pattern behind all six: a seller who can explain the shape of their working capital keeps the price they negotiated. A seller who cannot hands the buyer the right to define it. We cover the wider preparation exercise in quality of earnings for an industrial SME and, in Spanish, in preparar una pyme industrial para la venta.
Why this matters more in a multi-vertical platform
A manufacturer serving one end market has one inventory cycle. A platform serving several — footwear, leather goods, hospitality, marine, premium bedding, racket sports — has staggered cycles that partially offset each other, and the same hide lot can be cut across more than one vertical.
Read carelessly, that looks like complexity. Read properly, it is diversification of working capital risk: the seasonal peak of one vertical is funded by the trough of another, and material that would be dead in a single-market business still has a destination. Making that visible in the numbers, rather than leaving a buyer to infer it, is the difference between a discount for complexity and a premium for resilience. The argument in full is in the multi-vertical manufacturing platform.
FAQ
Why is inventory the most disputed line in a manufacturing deal?
Because it is simultaneously a balance-sheet number, a working capital component and an EBITDA driver. A write-down of slow-moving stock reduces net asset value, changes the working capital target and can restate historical margin all at once.
What is the difference between locked box and completion accounts here?
Locked box fixes the price at signing on accounts at a past date, so inventory valuation must be right before you sign and the buyer polices leakage afterwards. Completion accounts agree a headline price and true it up after closing. Completion accounts tend to suit businesses with genuinely volatile inventory — at the cost of a post-closing negotiation.
How long does a working capital adjustment take to settle?
Around two months on average. If the parties disagree and the matter goes to an independent accountant, add roughly another 65 days. That timeline is itself an argument for resolving inventory policy before signing rather than after.
What does a seller do about seasonal or colour-specific stock?
Document it as a commercial reserve rather than leaving it to be discovered as dead stock. Reserved dye lots held against named customer programmes are working capital deployed on purpose; the same hides with no contract behind them look like an ageing problem. The difference is a paper trail, not a physical one.
Does a normalised working capital target favour buyer or seller?
Whoever chose the reference period. A target built on a twelve-month average in a seasonal business systematically favours whichever side closes at the point in the cycle furthest from that average. Sellers in seasonal industries should insist the target reflects the closing month, not a flat mean.
Working in industrial leather and footwear? The TL San Martín Business Board has a Partners & factories category for exactly this kind of conversation — subcontracting, capacity sharing, joint programmes and structural partnerships. It is a free, open B2B board for the sector.