End-of-life collections and dormant unsold stock
Fabrice Decroo
Consulting Director
August 17, 2026
End-of-life collections and dormant stock are two facets of the same problem: immobilized value that no one has explicitly decided to address. The latter is more dangerous because it is unexpected.
Overproduction and unsold inventory represent an estimated global loss of between 70 and 140 billion dollars per year.
A product that stops selling does not always signal it clearly — it gets lost in the catalog's average performance. End-of-life collections and dormant stock are two forms of the same issue: immobilized value that no one has decided to address.
Two origins, one symptom
End-of-life collections are predictable: a seasonal product or collection has a planned end date from its launch. The challenge is not whether residual stock will arrive, but anticipating and clearing it on time.
Dormant stock is less predictable: a reference that is supposed to turn over normally gradually stops selling, with no planned end date — due to a purchasing error, shifting trends, or new competition. It is spotted later, precisely because no one was expecting it.
In both cases, the final symptom is identical: inventory that ties up capital and space without generating sales, and whose value steadily decreases over time.
The scale of the problem, in numbers
The issue is far from marginal. According to McKinsey & Company's State of Fashion report (BoF-McKinsey), overproduction and unsold stock represent an estimated value loss of 70 to 140 billion dollars globally each year — meaning, industry-wide, between 2.5 and 5 billion items produced annually that never find a buyer at full price.
in estimated annual value loss related to overproduction and unsold stock globally — between 2.5 and 5 billion items produced annually without finding a buyer at full price (McKinsey & Company, State of Fashion).
Sector data on dormant stock outside of fashion points in the same direction: a significant share — commonly estimated between 20 and 30% — of references in a standard retail catalog eventually becomes very slow-moving or dead stock, without any explicit alert signal automatically flagging it.
Why dormant stock goes unnoticed for so long
- It dilutes into the average. An overall sales report by category may look healthy, while a handful of references silently drag down overall performance.
- No one is explicitly responsible for flagging it. Without automated alert thresholds, detection relies entirely on the individual vigilance of a category manager.
- It continues to appear in available inventory metrics, without distinguishing between moving inventory and stagnant stock.
How to detect early
Define a turnover alert threshold
Set the number of weeks without a sale per category at which a reference automatically triggers an alert.
Distinguish between planned end-of-life and unforeseen drift
A planned end-of-life reference follows its projected trajectory; a reference expected to turn normally that underperforms is a signal that must be handled differently.
Route the alert to a decision, not just a report
A reference identified as dormant stock must trigger an explicit decision—rather than simply appearing in a dashboard that no one acts upon.
Document the root cause
Understanding why a reference became dormant helps prevent repeating the same mistake in the next collection.
Manage unsold stock without unnecessarily destroying value
Once detected, dormant or end-of-collection stock has several potential outlets that should be prioritized rather than chosen at random: gradual discounting on the primary channel, transfer to a secondary channel or off-price liquidator, tax-optimized donation, or destruction as a last resort. The sequence matters: each step must be attempted before moving on to the next — see also our article on markdown timing and depth.
Before letting inventory sit dormant any longer
- Do I have an alert threshold that automatically detects references with no sales?
- Do I distinguish between a planned end-of-collection and an unforeseen drift?
- Does every dormant stock alert trigger an explicit decision, or does it remain unaddressed?
- Have I prioritized my exit options before needing them urgently?
FAQ
The questions we are most frequently asked before getting started.
End-of-collection is planned from the product's launch. Dormant stock is an unforeseen drift in a reference that was expected to turn normally, making it harder to detect.
The threshold depends on the category and its usual turnover: what is normal for a slow-moving product may be an alert for a product expected to turn rapidly.
Not systematically: transferring stock to another sales point or channel can sometimes clear it without a markdown, prior to resorting to discounting.
By documenting the root cause of each detected case to fine-tune procurement decisions for the next collection.
Sources: McKinsey & Company, "The State of Fashion 2025" (BoF-McKinsey) — mckinsey.com · Booper product data (GENIUS Monitoring module, stock rotation alerts).
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