Cash Flow Statement
The cash flow statement follows real money as it enters and leaves a company during a period, sorted into three sections: operating activities, investing activities, and financing activities. Unlike the income statement, it ignores accounting judgment about when revenue or expenses count.
Cash either moved or it did not.
The math
Consider a company reporting $80M of net income. Its cash flow statement shows only $30M of operating cash flow, because receivables grew by $35M and inventory absorbed another $15M.
Investing activities took $25M of capex, so the business generated just $5M of free cash. An investor paying 20x earnings values the company at $1.6B.
| Amount | |
|---|---|
| Net income | $80M |
| Receivables growth | -$35M |
| Inventory build | -$15M |
| Operating cash flow | $30M |
| Capex | -$25M |
| Free cash flow | $5M |
Priced instead on the $30M of cash the operations actually produced, the same 20x logic supports $600M. That $1B gap is the cost of trusting accrual profit without checking the cash behind it.
The trap
Companies in trouble often keep the income statement presentable long after the cash has stopped cooperating. Aggressive revenue recognition, stretched payables, and capitalized costs all flatter earnings while the operating section of the cash flow statement quietly deflates.
The financing section holds its own warning: a firm that funds dividends and buybacks with new debt is returning capital it never earned.
The move
Run one habitual comparison every quarter: net income versus operating cash flow. Over multiple years the two should travel together; a persistent gap in either direction demands an explanation, usually found in working capital lines.
Then read the financing section to see whether shareholders are being paid from operations or from borrowings. Practiced stock pickers treat this statement as the lie detector for the other two, and it is often where a thesis is confirmed or quietly abandoned.