What is return on equity (ROE)?
ROE measures how much profit a company generates from shareholders' equity, expressed as net profit divided by equity.
Return on equity (ROE) measures how efficiently a company turns shareholders' money into profit. It answers a fundamental question: for every rupee of equity invested in the business, how much profit does the company generate? The formula is:
ROE = net profit ÷ shareholders' equity × 100.
If a company earns Rs 10 billion of net profit on Rs 50 billion of equity, its ROE is 20%. That means the business generated a 20% return on the capital its shareholders have tied up in it — a strong figure.
ROE is prized because it gets to the heart of business quality. A company can grow profits simply by reinvesting more and more capital, but that is only valuable if it earns a good return on that capital. A high, sustained ROE signals a company with a genuine competitive edge — efficient operations, pricing power, or a strong franchise — that compounds shareholder wealth over time. A persistently low ROE suggests capital is being used poorly.
How to interpret ROE:
- Compare with peers and history. What counts as "good" varies by sector. Banks, fertiliser, and consumer companies on the PSX often post high ROEs, while capital-intensive or struggling businesses post lower ones. A company beating its sector and improving over time is a positive sign. - Look for consistency. A high ROE in a single year may be a fluke; a high ROE sustained across years is the mark of a quality business. - Mind the leverage. ROE can be flattered by debt. Because equity is the denominator, a company that funds itself heavily with borrowing can show a high ROE while carrying real financial risk. Always check ROE alongside the company's debt levels; a high ROE built on a fragile balance sheet is less impressive than the same ROE from a debt-light firm.
ROE also connects to growth and valuation. A company that earns a high ROE and reinvests its profits can grow its book value and earnings rapidly, which often justifies a higher price-to-book and P/E ratio. The combination of a high ROE and a reasonable valuation is what many long-term investors hunt for.
For PSX investors analysing banks and industrials in particular, ROE — read together with the payout ratio, debt, and price-to-book — is among the most revealing single numbers for separating genuinely high-quality compounders from companies that merely look big.