Return on equity and return on assets

Return on equity (ROE) divides net income by shareholder equity, showing how much profit a company generates from the capital its owners have invested. Return on assets (ROA) divides net income by total assets, showing how efficiently the whole asset base produces profit.

Both are calculated from figures in the income statement and balance sheet in 10-K and 10-Q filings, so they are reported periodically. Aerarium Research builds them from those reported values and keeps the source period visible.

ROE and ROA can diverge sharply because of debt. A company that funds itself with borrowing has a smaller equity base, which can lift ROE even when the underlying business is no more efficient. ROA, which uses total assets, is less sensitive to that effect.

Reading the two together — and comparing them to a company’s own history — is more informative than either alone. A high ROE paired with a much lower ROA often points to heavy leverage rather than operational strength.

A high ROE is not automatically good and does not predict stock returns. It can reflect genuine efficiency, or simply a lot of debt or share buybacks shrinking equity. Accounting choices can also affect both ratios.

Compare ROE and ROA within an industry and across several periods, and read them alongside leverage and cash flow. They are profitability context, not a verdict on value.