Return on assets (ROA) is a financial ratio that measures how profitable a company is relative to its total assets.
Calculating and interpreting return on assets
ROA calculates the percentage of profit a company earns for every unit of currency invested in its assets. Investors use this metric to evaluate management efficiency in deploying capital. The standard formula divides a company’s net income by its total assets. Net income is the profit remaining after all expenses and taxes are paid. Total assets encompass everything the company owns, including cash, inventory, equipment, and real estate.
A higher ROA indicates better asset efficiency. Different industries have different average ROA figures based on their operational requirements. Capital-intensive industries like automotive manufacturing require expensive equipment and factories, resulting in a lower baseline ROA. Software companies operate with fewer physical assets and typically report a higher ROA. Investors compare ROA exclusively between companies operating within the exact same industry to get an accurate assessment.
This metric helps Elephants track a specific company’s operational performance over time. If a company reports a falling ROA over consecutive years, it indicates management is acquiring assets that fail to generate proportionate revenue. An increasing ROA shows the company extracts more profit from its existing asset base. Analysts calculate this figure using data from two different financial documents, pulling net income from the income statement and total assets from the balance sheet.
Example
Suppose Elephants are evaluating two competing businesses that manufacture heavy-duty watering troughs. Trough Company A reports a net income of 100,000 and holds total assets of 500,000. Dividing the net income by total assets gives Trough Company A an ROA of 20 percent.
Trough Company B reports the same net income of 100,000 but holds total assets of 1,000,000. Dividing the net income by total assets gives Trough Company B an ROA of 10 percent.
Both companies generate the exact same profit from selling watering troughs. Trough Company A is more efficient at using its assets to generate that profit. Trough Company B required twice the asset investment to achieve the same net income, making it the less efficient operation.