Free Cash Flow
FundamentalsThe actual cash left over after running the business and maintaining its assets — the number that determines whether a company can self-fund growth, pay dividends, or buy back stock.
Free Cash Flow represents the residual cash generated by operations after deducting capital expenditures required to maintain or expand the asset base. It is calculated as Operating Cash Flow minus Capital Expenditures (CapEx). FCF is the most direct measure of cash generation available to equity holders and is the foundation of discounted cash flow (DCF) valuation — arguably the most theoretically rigorous method of intrinsic value estimation. Unlike earnings, FCF cannot be manipulated through accounting choices around revenue recognition or depreciation schedules. A company with consistently positive and growing FCF has genuine financial flexibility: it can fund internal growth, reduce debt, pay dividends, or execute buybacks without raising external capital.
Operating Cash Flow is cash generated from actual business operations (from the cash flow statement, not income statement). Capital Expenditures are cash spent on buying or maintaining physical assets — factories, equipment, servers. Subtract CapEx from operating cash flow and you have the cash the business truly generates.
The business is self-funding and accelerating. This is the hallmark of a compounding machine. Positive FCF growth gives management full optionality on capital allocation.
Operationally sound but not accumulating cash meaningfully. Watch whether CapEx is elevated due to a growth investment cycle — that can be temporary and healthy.
The business is consuming more cash than it generates. For early-stage hypergrowth companies this may be intentional. For mature companies it signals a structural problem.
FCF is what funds every shareholder-friendly action: dividends, buybacks, debt paydown, and acquisitions. A company can report profits while burning cash (through working capital changes or heavy CapEx), but FCF exposes that gap. Warren Buffett has described FCF as 'owner earnings' — what would actually accrue to shareholders if the business were privately held. Growth investors should track FCF trajectory; value investors should look at FCF yield (FCF per share ÷ share price).
Negative FCF doesn't automatically mean a bad business. Amazon ran negative or near-zero FCF for years while building AWS and its fulfilment network — the CapEx was an investment in future cash generation, not a sign of failure. The key question is whether negative FCF is funding genuine growth or just covering operational losses. Look at the CapEx breakdown: growth CapEx (new capacity) is very different from maintenance CapEx (keeping the lights on).