Free Cash Flow (FCF)
Free cash flow is the cash a company generates after paying for capital expenditures. It's the money available for dividends, debt repayment, and growth investments.
Free cash flow is the cash a company generates after paying for capital expenditures. It's the money available for dividends, debt repayment, and growth investments.
Formula
Example
A company generates $500M in operating cash flow and spends $200M on CapEx. FCF = $300M. This $300M is 'free' to distribute or reinvest.
How to Interpret It
Positive and growing FCF is a strong signal. It means the company can fund its own growth. Compare FCF yield (FCF/Market Cap) to bond yields — if higher, the stock may be undervalued.
Real-World Example: FCF as a Value Signal
In 2024, Apple generated approximately $110 billion in operating cash flow and spent about $10 billion on CapEx, yielding ~$100 billion in free cash flow. With a market cap of ~$3.4 trillion, that's an FCF yield of ~2.9% — not exciting until you consider Apple also buys back $90B+ in stock annually, effectively returning nearly all FCF to shareholders.
Contrast with Amazon, which generated ~$85B in operating cash flow but spent ~$50B on CapEx (data centers, warehouses), leaving ~$35B in FCF. Amazon's lower FCF isn't bad — it reflects aggressive reinvestment. This is why you must understand where FCF goes, not just the number.
FCF Comparison: Big Tech
| Company | FCF (2024 est.) | FCF Yield | What They Do With It |
|---|---|---|---|
| Apple (AAPL) | $100B | 2.9% | Buybacks + dividends |
| Alphabet (GOOG) | $70B | 3.5% | Buybacks + cash pile |
| Amazon (AMZN) | $35B | 1.7% | Reinvested in growth |
| Meta (META) | $50B | 4.8% | Buybacks + AI investment |
Common Mistakes
- ❌ Ignoring CapEx quality. A company that cuts maintenance CapEx to boost FCF is destroying long-term value. Always check if CapEx covers at least depreciation — if not, FCF is artificially inflated.
- ❌ Treating negative FCF as always bad. Early-stage companies (Snowflake, CrowdStrike) intentionally burn cash to capture market share. Negative FCF is fine if revenue is growing 30%+ and the path to profitability is clear.
- ❌ Using a single year's FCF. FCF is lumpier than earnings. Look at 3–5 year averages to smooth out one-time items like big acquisitions or asset sales.
💡 Pro Tip: The "FCF Yield vs. 10-Year Treasury" comparison is one of the best valuation screens. When Meta's FCF yield hit 7% in late 2022 versus a 3.8% Treasury yield, the market was essentially saying Meta's cash flows were riskier than government bonds — clearly wrong for a $35B cash flow machine. That was a generational buy signal.
Frequently Asked Questions
Can FCF be negative?
Yes, especially for growth companies investing heavily. Amazon had negative FCF for years while building infrastructure. Negative FCF isn't always bad — check if it's funding growth (good) or covering operating losses (bad). Mature companies should consistently generate positive FCF.
What's a good FCF yield?
FCF yield = FCF per share ÷ share price. A yield above 5% is attractive for mature companies; above 8% suggests potential undervaluation. Compare FCF yield to the 10-year Treasury yield — if FCF yield is lower, the stock may not compensate enough for the risk.
Why is FCF better than net income?
Net income includes non-cash items (depreciation, stock-based compensation) and can be manipulated through accounting choices. FCF strips all that out — it's actual cash the company generated. Warren Buffett famously focuses on "owner earnings" (essentially FCF) rather than reported earnings.