Profitability and value creation: reading a company

Picture two companies. The first doubles its revenue in three years. The second barely moves. Instinct says the first one is winning. Yet it may be worth less than before, leaving its owners poorer and heading for insolvency. Growth is impressive, but it says almost nothing about real performance.

The confusion runs deep. We judge companies by what we can see: size, revenue, brand recognition. Real financial performance lives in quieter numbers: margin, profit, the cash actually generated, the return earned on invested capital. Those figures tell a different story, sometimes the opposite of the revenue headline.

Worse still, two words everyone uses, "profit" and "return", do not measure the same thing. A firm can post a healthy accounting profit and run out of cash badly enough to fail. Another can lose money every year while creating enormous value. Understanding why means learning to read a company for what it truly is.

The basics: five numbers we keep mixing up

Before judging any company, five ideas that everyday language blurs must be separated. None requires a finance background. Each answers a simple question.

From revenue to profit: the margin cascade

Revenue is the total of sales over a period. It sits at the top of the income statement. Below it, layers of cost are stripped away, and each step leaves a "margin", meaning what remains expressed as a share of sales.

Gross margin removes the direct cost of goods sold: materials, manufacturing, purchased inventory. EBITDA then removes ordinary operating costs, but not depreciation or taxes. Operating margin removes depreciation, the wear of equipment spread over several years. Net margin, finally, removes interest and tax. It is the profit that genuinely belongs to shareholders.

Aggregate figures make it vivid. Across all listed companies analysed by Aswath Damodaran (NYU Stern, January 2026), out of 100 units of sales about 38 remain as gross margin, 16.6 as EBITDA, 12.8 as pre-tax operating profit, and only 9.7 as net profit. Every floor swallows a share.