Interactive lesson
Free Cash Flow
Operating cash flow after reinvestment
Free cash flow is what remains after funding the business’s operating cash needs and reinvestment. This lesson shows the subtraction — and why growth can temporarily suppress FCF.
What it is
A common simple definition: FCF ≈ operating cash flow − capital expenditures (CapEx).
High CapEx is not automatically bad. Growing businesses often reinvest heavily; mature compounders may convert more OCF into FCF.
FCF is closer to owner cash generation than accounting net income — which is why DCF models often start here.
Interactive lab: OCF − CapEx = FCF
Watch a waterfall: operating cash flow, then CapEx as reinvestment, then free cash flow. Scenarios reset from baseline.
What the result means
Raising CapEx reduces FCF even if the business is healthy — you are choosing reinvestment over near-term distributable cash.
Negative FCF can be a growth phase, a turnaround, or a warning. The lab shows the arithmetic; judgment still requires context.
Compare FCF to net income on real stock pages when you want a quick earnings-quality check.
FCF vs earnings
Earnings include accruals. FCF emphasizes cash after reinvestment.
A company can report rising EPS while FCF lags — or the reverse. Neither number alone is a complete valuation.
Illustrative large-cap cash pattern — framed as of July 25, 2026
Rounded teaching figures for a mature compounder profile. Not a live cash-flow statement excerpt.
- Operating cash flow (illustrative)
- $110B
- CapEx (illustrative)
- $10B
- Implied FCF
- ~$100B
Asset-light compounders often convert a large share of OCF into FCF. Capital-intensive growers may look weaker on FCF even with strong demand.
Open AAPL financials context →Common mistakes
- Treating CapEx as pure “cost” instead of reinvestment that can create future cash flows.
- Ignoring working-capital swings inside operating cash flow.
- Using one year’s FCF as a perpetual run-rate without checking cycle and growth stage.
- Equating FCF with “cash available to shareholders” without considering debt, buybacks, and liquidity needs.
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