What Is Free Cash Flow?
Free cash flow is the cash a company generates after paying for operations and capital expenditures. Learn why FCF is the truest measure of financial health.
Definition
Free cash flow (FCF) is the cash a company generates from its business operations after subtracting capital expenditures (spending on property, equipment, and other long-term assets). The formula is: FCF = Operating Cash Flow - Capital Expenditures. It represents the actual cash available to pay dividends, buy back shares, reduce debt, or invest in new growth.
FCF is often considered a more honest measure of profitability than net income because it is harder to manipulate with accounting tricks. Net income can be inflated by depreciation choices, revenue recognition timing, or one-time gains. Cash flow is binary -- either the cash came in or it did not.
Positive free cash flow means the company is generating more cash than it needs to maintain its business. Negative free cash flow is not automatically bad -- fast-growing companies often spend heavily on expansion (Amazon had negative FCF for years). But a mature company with persistently negative FCF is burning cash and may eventually need to raise money by issuing shares or taking on debt.
Real-World Example
A company generates $800 million in operating cash flow and spends $300 million on capital expenditures (new factories, equipment, technology). Free cash flow = $500 million. With that $500 million, the company pays $200 million in dividends, spends $150 million buying back shares, and retains $150 million on the balance sheet. Investors can see exactly where every dollar goes. If the company had reported $600 million in net income but only $500 million in FCF, the $100 million gap warrants investigation.
Why It Matters
Free cash flow is the lifeblood of shareholder returns. Dividends come from FCF. Share buybacks come from FCF. Debt repayment comes from FCF. Companies with strong, growing FCF can reward shareholders consistently, while companies with weak FCF -- regardless of reported earnings -- will eventually run into trouble. Many professional investors value stocks based on FCF (using a discounted cash flow model) rather than earnings because cash flow is simply harder to fake.
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Frequently Asked Questions
What is the difference between free cash flow and net income?
Net income is an accounting measure that includes non-cash items like depreciation and amortization. Free cash flow measures actual cash generated. A company can report positive net income but negative free cash flow if it is spending heavily on equipment or has poor cash collection.
What is free cash flow yield?
FCF yield = free cash flow per share / stock price. It is similar to dividend yield but uses FCF instead of dividends. A stock with a high FCF yield may be undervalued because it is generating a lot of cash relative to its price.
Can negative free cash flow be acceptable?
Yes, for fast-growing companies investing heavily in future growth. Amazon, Tesla, and Netflix all had years of negative FCF during expansion phases. The key question is whether the investments are generating returns. For mature companies, persistent negative FCF is a red flag.
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