Free cash flow analysis guide

Start with operating cash flow, not net profit

Net income includes non-cash accounting items and can move differently from cash collected from customers. Operating cash flow is the bridge from accounting profit toward cash economics, so the first question is whether profit consistently converts into cash.

A growing gap can have reasonable causes — inventory build, receivables growth, contract timing or customer advances — but it needs an explanation from the cash-flow and balance-sheet notes.

Subtract the capital needed to run the business

A common practical definition is free cash flow equal to operating cash flow minus capital expenditure. The exact treatment of asset purchases, software capitalisation, development spending and acquisitions should be documented for the company being studied.

The hardest part is distinguishing maintenance capex from growth capex. Companies do not always disclose this cleanly, so use management commentary, asset schedules and historical reinvestment needs to avoid false precision.

Check working capital and cash conversion

Track receivables, inventory, payables and other operating working-capital balances over time. A company can report strong earnings while consuming substantial cash when customers take longer to pay or inventory builds ahead of demand.

Calculate cash conversion using a consistent definition and compare it across several years and close peers. Persistent weak conversion is more informative than a single quarter with a timing effect.

Do not ignore leases, stock compensation and acquisitions

Lease commitments can be economically important even when the cash-flow presentation separates them across financing and operating categories. Stock-based compensation is non-cash today but can dilute existing owners; acquisitions are often excluded from simple FCF definitions even though they consume cash.

For an owner-oriented analysis, keep a separate line for acquisition spending and share dilution. This makes it easier to distinguish cash created by the existing business from cash redeployed to buy growth.

A ten-year FCF research table

Record revenue, net income, operating cash flow, capex, free cash flow, diluted shares and net debt for each year. Add FCF margin and FCF per share, then mark years with unusually large working-capital swings or acquisitions.

A durable cash generator should be understandable from the table: cash tends to follow the operating model, capex stays within a plausible range, dilution is visible, and weak years have identifiable causes.

Frequently asked questions

Is free cash flow the same as profit?

No. Profit is an accounting measure; free cash flow focuses on operating cash generated after relevant capital expenditure.

Can free cash flow be negative for a good company?

Yes. Expansion, working-capital investment or acquisitions can create temporarily negative cash flow. The research question is whether the spending has a credible return and remains financeable.

What is FCF yield?

FCF yield is commonly free cash flow divided by market capitalisation, expressed as a percentage. Use the same period and share count definition across the comparison set.