Free Cash Flow Yield

FCF Yield = Free Cash Flow ÷ Market Capitalisation. Free cash flow is typically defined as operating cash flow less capital expenditure, representing the cash a business generates after maintaining and growing its asset base. When expressed as a yield, it can be compared directly to bond yields, dividend yields, and earnings yields, providing a unified framework for assessing relative value across asset classes. A company with a 6% FCF yield when 10-year G-Sec yields stand at 7% may be fairly valued; at a 10% FCF yield against the same G-Sec, it may represent a compelling opportunity.

Warren Buffett introduced the concept of owner earnings — a proprietary measure of the cash a business could theoretically distribute to owners without impairing its competitive position. Owner earnings = Net income + Depreciation + Amortisation – Maintenance Capex, where maintenance capex is the amount required to sustain unit volume and competitive position. Buffett's owner earnings strip out growth capex, focusing purely on the distributable cash from existing operations. This nuance is important in India, where many capital-intensive companies lump together maintenance and growth capex in their disclosures, requiring analysts to estimate the split.

FCF yield is particularly useful for comparing companies within capital-intensive sectors such as cement, steel, power, and telecom in India, where depreciation-heavy income statements can distort P/E comparisons. A power company with heavy depreciation charges and modest reported profits may nonetheless generate robust free cash flows once those non-cash charges are added back — the FCF yield captures this reality that the P/E ratio misses.

The relationship between FCF yield and return is not linear: a very high FCF yield (say, 15–20%) often signals either a deeply undervalued business or a value trap where the market correctly anticipates structural deterioration in cash flows. Distinguishing between the two requires assessing the durability of the cash flow sources — are they tied to non-renewable contracts, oligopolistic pricing, or genuinely competitive products and services?

For tracking quality, analysts compare FCF yield against earnings yield. When FCF yield consistently exceeds earnings yield (i.e., FCF > Net Profit), the business has excellent cash conversion and conservative accounting. When FCF yield persistently lags earnings yield, it signals poor cash conversion — a red flag that warrants investigation into receivables, inventory trends, and capitalisation policies.