Learn · Understand companies
Free cash flow
Profit is an opinion; cash is a fact. Free cash flow is the money a business actually has left over, and it is harder to manipulate than earnings.
Free cash flow is the cash a business generates from operating, minus what it must spend on physical assets to keep operating.
Data
The formula, and a real example
Free cash flow = operating cash flow − capital expenditure
NVIDIA, fiscal Q1 2027 (quarter ended April 26, 2026): operating cash flow $50.344bn, free cash flow $48.554bn.
The difference — about $1.8bn — is roughly what the company spent on property, equipment and other capital items during the quarter.
Free cash flow = operating cash flow − capital expenditure
NVIDIA, fiscal Q1 2027 (quarter ended April 26, 2026): operating cash flow $50.344bn, free cash flow $48.554bn.
The difference — about $1.8bn — is roughly what the company spent on property, equipment and other capital items during the quarter.
Why it differs from profit
Net income is calculated under accounting rules that deliberately do not follow cash. Revenue is recognised when earned, not when collected. Large purchases are spread over years as depreciation rather than expensed when paid. Both choices make earnings a better measure of economic activity — and a worse measure of liquidity.
- A company can report a profit while running out of cash, if customers are slow to pay.
- A company can report a loss while generating cash, if large non-cash depreciation charges dominate.
- Earnings involve judgement at many points. Cash movements involve considerably less.
What free cash flow enables
Cash that is genuinely free can do four things, and watching which one a company chooses tells you a lot about management:
- Pay dividends.
- Buy back shares.
- Pay down debt.
- Fund acquisitions or expansion beyond maintenance needs.
Interpretation
Reading the choice
NVIDIA generated $48.6bn of free cash flow in one quarter and used it to raise the dividend from $0.01 to $0.25 a share and authorise $80bn of buybacks. A company returning capital at that scale is signalling that it cannot productively reinvest all of it — which is a statement about the size of its own opportunity, not only about generosity to shareholders.
NVIDIA generated $48.6bn of free cash flow in one quarter and used it to raise the dividend from $0.01 to $0.25 a share and authorise $80bn of buybacks. A company returning capital at that scale is signalling that it cannot productively reinvest all of it — which is a statement about the size of its own opportunity, not only about generosity to shareholders.
The traps
- Capital expenditure can be deferred. Cutting maintenance spending boosts free cash flow this year and damages the business later.
- Working capital swings distort single quarters. Collecting receivables faster flatters one period at the expense of the next.
- Definitions vary. Some companies present 'adjusted free cash flow' with items removed. Read the reconciliation.
- Share-based compensation is a real cost that does not consume cash. Free cash flow flatters companies that pay heavily in stock.
The habit worth building: whenever you read a profit figure, find the cash flow statement and check whether the cash agrees. When the two diverge persistently in the same direction, the cash is usually telling the truth.
Education, not advice. These lessons explain how things work. They do not tell you what
to buy, and Wealth Signal does not publish recommendations. Full disclaimer.