concept Updated 2026-08-04 Tags: Finance, Operations, Working-Capital

Negative Cash Conversion Cycle

Negative cash conversion cycle is the working-capital pattern in Costco where a retailer can sell goods before paying suppliers. Price Club and Costco use fast inventory turns, supplier payment terms, and member demand to make suppliers effectively finance part of the inventory cycle.

The concept explains why a low-margin retailer can still generate strong cash flow. If goods turn in roughly the same window as supplier terms, the company needs less cash tied up in inventory even while sales grow.

Key Claims

  • Negative cash conversion depends on operational speed, not only bargaining power.
  • Limited SKU Operating Model and Retail Inventory Velocity make the cycle more plausible by concentrating demand.
  • Supplier financing is healthy only if the retailer preserves trustworthy, high-volume relationships.
  • The same logic can fail if inventory slows, assortment expands too far, or supplier terms tighten.

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