What is the cash conversion cycle?
Days inventory outstanding plus days sales outstanding minus days payable outstanding. The standard measure of how long cash is tied up in working capital. Negative CCC means suppliers finance the business; positive CCC means the business finances itself.
CCC = DIO (Days Inventory Outstanding) + DSO (Days Sales Outstanding) - DPO (Days Payable Outstanding). A positive CCC means the company pays suppliers before collecting from customers - it must finance the gap. A negative CCC means customers pay before suppliers must be paid - the suppliers effectively finance the business. Amazon and Costco famously run negative CCC; the operational moat funds itself through working-capital float. The shorter (or more negative) the CCC, the less capital the business needs to grow.
Why CCC matters
A business with a -30 day CCC growing 20% adds free cash to the balance sheet from growth alone. A business with a +60 day CCC growing 20% must raise or retain capital to fund the working-capital expansion. Two businesses with identical operating margins can have wildly different free-cash-flow profiles depending on CCC; the negative-CCC business converts growth into cash, the positive-CCC business consumes cash to grow.
Negative CCC is rare and signals genuine operational strength. Costco achieves it via membership-fee upfront cash plus rapid inventory turnover. Amazon achieves it via customer-pays-on-order + long supplier payment terms. Both businesses are textbook negative- CCC compounders.
Frequently asked questions
What is the cash conversion cycle?
Days inventory outstanding + days sales outstanding - days payable outstanding. How long cash is tied up in working capital.
Why is negative CCC valuable?
Because the business funds its own growth through working-capital float. Suppliers and customers finance the operation, freeing capital for productive deployment.
Which companies run negative CCC?
Costco, Amazon (historically), Dell (historically). All operationally-distinctive businesses where the CCC contributes meaningfully to the moat.
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