Free cash flow is what remains after a company pays its operating costs and makes the capital expenditures needed to maintain and grow the business. FCF yield expresses this as a percentage of market capitalisation — the real cash return the business generates per dollar you invest.
The formula
Free Cash Flow = Operating Cash Flow − Capital Expenditure. FCF Yield = Free Cash Flow ÷ Market Capitalisation × 100%. If a company generates $500m in FCF and has a market cap of $6bn, its FCF yield is 8.3%. This is the rough annual "earnings yield" in cash terms.
Why FCF is often more reliable than earnings
Net income — the basis for P/E — is an accounting number shaped by depreciation schedules, amortisation of acquisitions, deferred taxes, stock-based compensation, and numerous other non-cash or discretionary items. CFOs don't have the same flexibility with free cash flow: it's the actual cash that arrived in the bank account after real spending.
This matters most for companies that have made large acquisitions (high goodwill amortisation depressing earnings), capital-light businesses (minimal capex amplifies FCF vs earnings), and any business where management uses accounting choices to manage reported EPS.
Interpreting FCF yield — the bonds analogy
Think of FCF yield as the "earnings yield" of the stock in cash terms. If a company yields 8% FCF and 10-year bonds yield 4%, the stock is offering double the cash return with the upside of business growth. If FCF yield compresses to 3% — below bond yields — you're paying a premium that requires faith in growth to justify.
| FCF yield context | Interpretation |
|---|---|
| High FCF yield vs own history | Market may be undervaluing cash generation — often a value signal |
| Low FCF yield vs own history | Market pricing in strong future growth — or the multiple has expanded |
| Negative FCF yield | Company consuming more cash than it generates — common for growth-phase businesses |
| Volatile FCF year-to-year | Working capital or lumpy capex — look at 3–5 year averages, not single years |
Where FCF yield breaks down
For high-growth businesses deliberately reinvesting heavily in expansion, negative or low FCF yield is by design — not a signal of poor value. Amazon generated minimal FCF for most of its first decade while building infrastructure that ultimately became enormously valuable. For mature, slower-growth businesses, low FCF yield is a more reliable warning sign.
Also watch for "capex holidays" — management temporarily deferring maintenance spending to make FCF look better in the short term. This inflates FCF yield but eventually catches up in deteriorating assets and higher future spending.
Each stock page on Sixtycents shows FCF yield in historical context, so you can cross-check whether earnings-based and cash-based valuation metrics tell the same story — or diverge in ways worth investigating.
Explore a stock's FCF history →