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L.7 · BEGINNER · 4 MIN

Cash Conversion Cycle: Who Funds Whom?

Earnings tell you what a business booked. Cash Conversion Cycle tells you whether the business funds itself — or whether it depends on you, the owner, to keep funding it. For a long-term owner, that distinction is load-bearing. Two businesses can earn identical headline profits, yet one releases cash as it grows while the other consumes it. Compound that asymmetry over a decade and the gap in intrinsic value per share becomes enormous.

Quiz · 5 questions ↓

Key point

The cycle decomposes into three steps: Days Sales Outstanding (DSO) is how long customers take to pay; Days Inventory Outstanding (DIO) is how long product sits before it sells; Days Payables Outstanding (DPO) is how long the business takes to pay suppliers. CCC = DSO + DIO − DPO. A positive CCC means the business is the lender (cash trapped in the cycle); a negative CCC means suppliers are the lender (the business gets paid before it pays). The most durable franchises in the long-term-ownership tradition tend to operate with low or negative CCC — it is the balance-sheet expression of pricing power and franchise depth.

Compare

MetricHalton Industries (industrial supplier)Westmoor Optical (premium retailer)Conjure Capital (specialty SaaS)
DSO (days)45512
DIO (days)70280
DPO (days)356530
CCC (days)+80−32−18
Working capital per $1M of growth~$220K absorbed~$88K released~$49K released
Owner-economic interpretationGrowth requires capital injection or debtGrowth funds itself; suppliers carry the floatSubscription billing leads delivery; cash precedes revenue

Formula

CCC = DSO + DIO − DPO

Key point

Worked example — Pelham Holdings, 2020-2024. Pelham's CCC drifted from +52 days to +87 days over five years. Decomposing the move: DSO held flat at 12 days (collection discipline intact); DPO held flat at 30 days (no supplier squeeze); DIO rose from 75 to 105 days. The deterioration is entirely on the inventory side. Three hypotheses worth weighing as a long-term owner: (1) management is over-ordering ahead of new product launches — a confidence signal but a cash drag; (2) demand is slowing and unsold inventory is accumulating — a quiet warning; (3) inventory mix shifted to higher-margin slow-moving items — a deliberate margin strategy. Footnote 4 of the 10-K discloses the third explanation explicitly: a deliberate up-market move into premium frames. Practitioner read for an owner: the rising DIO is a strategic choice consistent with management's stated plan, but it is still real cash trapped in inventory — verify the trade by tracking gross-margin trajectory over the next eight quarters and watch for any reversal in DSO (which would signal channel-stuffing risk).

Try it

Pull the last five 10-Ks for any business you currently own or are studying. Compute DSO, DIO, and DPO for each year. Plot the trajectory of CCC. Two tests: (a) is the trend stable, improving, or deteriorating; (b) where in the decomposition is the movement coming from? Most importantly: ask yourself whether the trend matches what management has explicitly told you about the business in MD&A.

Check-in

Tirebridge Materials grew revenue 18% last year. Cash from operations grew 4%. CCC widened from +60 to +95 days. As a long-term owner, what is the single most important question to ask management on the next earnings call?

Key insight

An owner who looks only at the income statement sees the headline. An owner who looks at the cash conversion cycle sees who is funding whom. Over a long enough horizon, the second view tells you more about the durability of the franchise than any single quarter of margin can.

Check your understanding

Sit with the ideas.

Halton Industries reports DSO of 45 days, DIO of 70 days, and DPO of 35 days. A retailer in the same database reports DSO of 5, DIO of 28, and DPO of 65. Which framing best captures the durable difference for a long-term owner?

Why:
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Other lessons in this course.

  1. 01Profitability Ratios: How Much Does the Company Keep?
  2. 02Return on Equity: Shareholder Efficiency
  3. 03ROIC: The Truth About Business Quality
  4. 04Liquidity Ratios: Can They Pay Their Bills?
  5. 05Leverage Ratios: How Much Debt Is Too Much?
  6. 06Efficiency Ratios: How Well Does Management Run the Business?
  7. 07Cash Conversion Cycle: Who Funds Whom?— reading now
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