What ROA measures
ROA captures the efficiency of asset deployment. A higher ROA means the company squeezes more profit from each unit of assets. The metric is especially useful for comparing companies within the same industry, where asset intensity is similar.
Asset-light businesses (software, consulting) typically show ROAs of 15–30%, while asset-heavy industries (banking, utilities, manufacturing) may have ROAs of 1–5% and still be highly profitable.