What is Free Cash Flow?
The Free Cash Flow (FCF) is the cash a company actually generates after funding the maintenance and growth of its productive assets. It is the money left in the bank once the company has paid its operating expenses and its investments.
It is called "free" because this cash is available to be used at management's discretion: repaying debt, paying dividends, buying back shares, or making acquisitions. That is why it is considered the most honest indicator of a company's value creation.
Net income vs FCF: a company can report positive net income while burning cash. This can happen through heavy depreciation, sales on credit (revenue is booked but the cash is not yet collected), or provisions. FCF reveals the economic reality that net income can hide.
Why is FCF so hard to manipulate?
Net income is calculated under accounting rules (local GAAP or IFRS) that leave substantial room for interpretation: asset depreciation periods, inventory valuation methods, provisioning, and so on. FCF, by contrast, is based on real, verifiable cash movements. The money is either in the bank account or it isn't.
That is why investors like Warren Buffett have always emphasised cash generated over accounting earnings — and why FCF is the reference figure in DCF (Discounted Cash Flow) valuations.
How to calculate Free Cash Flow
Both components are found in the cash flow statement of the annual or half-year report:
- Operating cash flow (CFO): cash generated by the core business. It starts from net income and adds back non-cash charges (depreciation, provisions) and changes in working capital.
- CapEx (Capital Expenditure): investment spending on tangible and intangible fixed assets — machinery, buildings, patents, software. Appears as a negative figure in the "investing activities" section of the cash flow statement.
A step-by-step example
Take a fictional SME listed on Euronext Growth:
In this example, the company has net income of €2.1M but generates €1.7M of FCF. The difference comes from the depreciation added back and the change in working capital. This is a healthy profile: FCF is close to net income, which indicates the earnings are well "cash-backed".
FCF = CFO − maintenance or total CapEx?
Analysts sometimes distinguish maintenance CapEx (replacing existing assets) from growth CapEx (new investments to expand). An FCF calculated by subtracting only maintenance CapEx gives the normalised FCF — more representative of the recurring earning power of a fast-growing company that invests heavily.
In practice, in small-cap reports this breakdown is not always available. Total CapEx is used, which tends to be conservative (it slightly understates the structural FCF).
FCF and FCF yield calculator
How to interpret FCF
Positive FCF means the company generates more cash than it consumes for its investments. It is the sign of a healthy business model. But the absolute level of FCF is not enough — it has to be put in perspective.
FCF yield: the key metric
The FCF yield is the ratio of annual Free Cash Flow to market capitalisation. It is the equivalent of the earnings yield (the inverse of the P/E), but based on real cash.
| FCF Yield | Interpretation | Signal |
|---|---|---|
| < 0% | Negative FCF — the company is burning cash | Investigate the cause (growth or fragility?) |
| 0 — 2% | Low — expensive valuation or still-limited FCF | Requires strong FCF growth |
| 2 — 5% | Decent — in line with the market average | Neutral |
| 5 — 8% | Attractive — good cash generation relative to price | Potentially interesting |
| > 8% | Very attractive — or a signal that something is wrong | Check: exceptional FCF? Value trap? |
Price/FCF: the alternative to the P/E
The Price/FCF ratio (price divided by FCF per share) is the equivalent of the P/E, but with FCF instead of net income. It is considered more robust because it is less sensitive to accounting manipulation.
A Price/FCF below 15 is generally considered attractive for a small cap. A very high ratio (>30) is only justified by rapid FCF growth.
In the screener: the Price/FCF ratio is built into the Valuation pillar of the composite score. On small caps it is often unavailable or erratic for companies in a growth phase — which is why EV/EBITDA remains the main metric of the Valuation pillar.
Is negative FCF always a bad sign?
No — this is one of the most common analytical mistakes. Negative FCF can have very different causes depending on the company's situation.
Negative FCF: the 3 scenarios
| Scenario | Description | How to tell them apart |
|---|---|---|
| Intensive growth | The company invests heavily to capture a market. CapEx surges but CFO stays positive and growing. | Positive and rising CFO, controlled debt, growing order book |
| Operating fragility | CFO itself is negative — the company loses cash on its day-to-day activity before even investing. | Negative CFO, deteriorating working capital, shrinking cash balance |
| One-off year | A large one-time investment (acquisition, new plant) weighs on FCF for the year but is not recurring. | FCF normally positive in other years, clearly identified investment |
Practical rule: always look at FCF over 3 to 5 years, not a single year. An isolated negative FCF on a good company is often a buying opportunity. A systematically negative FCF over several years with no visible improvement is a red flag.
FCF and European small caps: specifics
On Euronext Growth, analysing FCF comes with several important specifics worth knowing.
Limited data availability
Unlike large caps, which publish detailed cash flow statements every quarter, small caps generally report half-year and annual accounts. The cash flow statement is not always included in half-year results releases — you sometimes have to dig into the annual report or the registration document filed with the national market regulator.
Erratic FCF for growth companies
On Euronext Growth small caps, FCF can be very volatile from one year to the next, mainly because of changes in working capital. A company that signs large contracts can see its working capital surge (it delivers but is not yet paid), which depresses its FCF for the year — even though the business is doing very well.
That is why, in the Screener Small Caps model, FCF is not used directly as a main feature of the ML model — its availability and reliability on small caps are insufficient. EBITDA and the EBITDA margin, which are more robust, are preferred.
How to read FCF in a small-cap annual report
In an annual report, look for the cash flow statement. The three key sections:
- Operating activities (= CFO): starts from net income, adds back depreciation, adjusts for changes in working capital.
- Investing activities: contains purchases of fixed assets (CapEx) as a negative figure.
- Financing activities: borrowings, repayments, dividends — worth watching to understand how the company funds any negative FCF.
FCF = the "operating activities" line − the absolute value of the "purchases of fixed assets" line in investing activities.
FCF and other ratios: how to combine them
FCF should never be analysed on its own. Here are the ratios that complement it best:
| Combination | What it reveals |
|---|---|
| FCF + EBITDA margin | Compares real cash (FCF) with operating profit (EBITDA). An FCF/EBITDA above 50% signals good conversion of earnings into cash. |
| FCF + P/E | If low P/E AND high FCF yield → double confirmation of undervaluation. If low P/E but negative FCF → caution (possible value trap). |
| FCF + ROCE | Positive FCF + high ROCE = the company generates cash AND uses it efficiently. The ideal profile for the long-term investor. |
| FCF + Net debt | Positive FCF + high net debt → the company can repay its debt. Negative FCF + high debt → refinancing risk. |
Go further: the Fundamental Analysis cluster
See also the Euronext Growth guide to understand the market these analyses apply to, and the glossary for full definitions.
New to screening European small caps? See the European small-cap stock screener guide.