Resources

Short, practical notes on excess inventory and working capital: how it builds, why it stays hidden, and how the right level of stock is set from your own demand.

On planning & measurement 14 August 2026

You buy stock for next quarter. But you measure it against the last quarter.

Days of cover divides today's stock by last quarter's demand to answer a question about next quarter. When demand is moving, the same stock gives two different answers, and the gap is where the ordering decision goes wrong.

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On planning & measurement 7 August 2026

A 95% fill rate is not good news if the 5% is your top ten SKUs.

Fill rate is almost always counted raw, so every SKU gets one vote. Weight it by sales and the number often changes, because a miss on your best seller and a miss on your slowest are not the same event.

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On inventory & working capital 31 July 2026

Your days-of-stock number is rarely audited. It is always defended.

Every number that ties up capital gets checked by someone outside it. Days of stock is the exception, because the two functions closest to it both benefit from it staying high.

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On inventory & working capital 24 July 2026

The safety-stock number nobody has revisited in years.

A buffer set once during an uncertain patch, then never lowered, quietly ties up cash across every SKU. The cost of a one-time setting nobody comes back to.

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On inventory & working capital 17 July 2026

Being in line with the industry benchmark is not the same as being right.

Two companies can sit on exactly the same industry average and be in opposite positions. The right stock level comes from your own business, not an average of others.

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On inventory & working capital 10 July 2026

Excess inventory is not a pile you clear once. It is a tap left running.

Why excess drifts back after every clean-out, and the three ordinary planning mechanisms that keep refilling the shelf.

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On inventory & working capital 3 July 2026

You need 15 days of stock. You are holding 30.

The extra days are not dead stock. They are a few days of cover spread thin across the range, quietly tying up cash.

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On inventory & working capital 20 June 2026

Let order frequency, not lead time, decide your days of stock.

Most of what sits on the shelf is cycle stock, set by how often you order, not how long delivery takes.

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