School

Work through lessons from elementary school through university.

← Back to lessons
High School Grade 1

ROE and ROA

When investing in stocks, it is important to understand how much profit a company makes. But does a company that earns a large profit necessarily make a good investment? To understand how efficiently a company generates profit, we need to learn about two financial measures: ROE and ROA. First, we need to understand what assets and shareholders' equity are. Assets are things a company owns or controls that have economic value, such as cash, buildings, machinery, and inventory. Companies use these assets to produce goods, provide services, and generate profits. But where does a company get the money it needs to acquire these assets? There are two main sources. One is money invested by shareholders, along with profits the company has kept instead of distributing. The other is money borrowed from banks or other lenders. The amount remaining after subtracting a company's liabilities from its assets is called shareholders' equity. For example, imagine a company with $100 million in assets and $60 million in liabilities. Its shareholders' equity would be $40 million. In other words, $60 million of its assets is offset by what the company owes, while the remaining $40 million represents the shareholders' stake in the business. Now, let's look at ROA. ROA stands for Return on Assets. It measures how much profit a company generates relative to the assets it uses to operate its business. ROA can be calculated by dividing a company's net income by its total assets and multiplying the result by 100. Net income is the profit remaining after subtracting expenses such as production costs, employee salaries, interest, and taxes from revenue. Suppose the company in our example has $100 million in assets and earns $4 million in net income over one year. Its ROA would be 4%, calculated by dividing $4 million by $100 million. This means the company earned $4 in net income for every $100 in assets. Generally, a higher ROA indicates that a company is using its assets more efficiently to generate profit. A lower ROA may suggest that the company is producing relatively little profit compared with the amount of assets it holds. So what is ROE? ROE stands for Return on Equity. It measures how much profit a company generates relative to its shareholders' equity. ROE can be calculated by dividing a company's net income by its shareholders' equity and multiplying the result by 100. In our example, the company has $40 million in shareholders' equity and earns $4 million in net income. Its ROE would therefore be 10%. This means the company generated $10 in net income for every $100 in shareholders' equity. This reveals an important difference between the two measures. ROA compares profit with a company's total assets, while ROE compares profit with shareholders' equity, which is the amount remaining after liabilities are subtracted from assets. As a result, the same company can have different ROA and ROE figures. But does a high ROE always mean a company is performing well? Not necessarily. ROE can also be affected by how much debt a company carries. For example, imagine two companies, Company A and Company B. Both have $100 million in assets and earn $4 million in net income. Company A has no debt, so its shareholders' equity is $100 million. Company B has $60 million in liabilities, leaving it with $40 million in shareholders' equity. Both companies have an ROA of 4%. However, Company A has an ROE of 4%, while Company B has an ROE of 10%. Even though both companies earn the same profit using the same amount of assets, Company B reports a much higher ROE. Why does this happen? The difference comes from Company B's use of debt. Companies can borrow money to expand their operations and potentially increase their profits. This is known as financial leverage. However, borrowing also creates risks. Companies must pay interest on their debt, and they may struggle to repay what they owe when business conditions deteriorate. Therefore, when you find a company with a high ROE, it is important to understand why. Is the company generating strong profits because it operates efficiently, or is its ROE high partly because it has substantial debt relative to shareholders' equity? When comparing ROE and ROA, it is also important to consider the industry in which a company operates. For example, manufacturing companies often need expensive factories and equipment. Other businesses may be able to operate with relatively few physical assets. As a result, comparing the ROA of companies in completely different industries may not provide a meaningful picture of their performance. It is also helpful to examine how ROE and ROA change over several years rather than focusing on a single year's results. A company might report unusually high profits because of a one-time event, causing its financial ratios to rise temporarily. If a company loses money, its ROE and ROA may become negative. ROE can also be difficult to interpret when a company has negative shareholders' equity. In actual financial analysis, analysts often use average assets and average shareholders' equity over the reporting period to calculate these ratios more accurately. Because ROE and ROA are based on accounting profits, it is also useful to examine how much cash a company actually generates from its business. Finally, an ROE of 10% does not mean that someone who buys the company's stock will earn a 10% return in one year. An investor's return depends on changes in the stock price and any dividends received. ROE and ROA measure how efficiently a company generates profits, not how much money an investor will make from owning its stock. Ultimately, ROA shows how efficiently a company uses its total assets, while ROE shows how much profit it generates relative to shareholders' equity. Looking at both measures can provide a more complete understanding of a company's profitability. However, finding a good company and buying its stock at a good price are two different things. That is why investors should consider not only ROE and ROA, but also a company's debt, growth potential, stock price, and other financial information before making an investment decision.