Stock and cash flow: managing inventory for liquidity

Why stock is cash in disguise

When you buy stock, cash leaves the business and sits as inventory until it sells. Until then it earns nothing and can even lose value. A warehouse of unsold goods is a warehouse of tied-up cash. This is why stock turnover — how quickly you sell and replace inventory — is a core cash-flow metric, not just an operational one.

The cost of holding too much

Overstocking is seductive: bulk discounts feel like savings, and full shelves feel safe. But excess stock ties up cash you could use elsewhere, costs money to store and insure, and risks obsolescence or spoilage. The discount you chased is often dwarfed by the cash you froze. Ordering little and often costs more per unit but keeps cash working.

Freeing cash from stock

Review your inventory for slow-moving lines and clear them, even at a discount — the cash released is worth more than the shelf space. Tighten reorder points so you hold less without stocking out. Where demand is predictable, move toward just-in-time ordering. Each turn of the stock frees cash back into the business. See how to reduce stock holding.

Stock and the cash conversion cycle

Stock days are one of the three legs of the cash conversion cycle, alongside debtor and creditor days. Shortening how long stock sits before it sells directly shortens the whole cycle and frees working capital. For a stock-heavy business it is often the single biggest lever available.

Funding a stock build when it pays

Sometimes building stock is the right call — a big order, a seasonal peak. Where the build is deliberate and self-liquidating, finance funds it and is repaid as the stock sells.

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