While some investors are already well versed in financial metrics (hat tip), this article is for those who would like to learn about Return On Equity (ROE) and why it is important. To keep the lesson grounded in practicality, we'll use ROE to better understand Singapore Technologies Engineering Ltd (SGX:S63).

Return on equity or ROE is an important factor to be considered by a shareholder because it tells them how effectively their capital is being reinvested. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

How To Calculate Return On Equity?

The formula for ROE is:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Singapore Technologies Engineering is:

23% = S$667m ÷ S$2.9b (Based on the trailing twelve months to June 2024).

The 'return' is the profit over the last twelve months. So, this means that for every SGD1 of its shareholder's investments, the company generates a profit of SGD0.23.

Does Singapore Technologies Engineering Have A Good Return On Equity?

Arguably the easiest way to assess company's ROE is to compare it with the average in its industry. However, this method is only useful as a rough check, because companies do differ quite a bit within the same industry classification. As is clear from the image below, Singapore Technologies Engineering has a better ROE than the average (9.0%) in the Aerospace & Defense industry.

That's clearly a positive. Bear in mind, a high ROE doesn't always mean superior financial performance. A higher proportion of debt in a company's capital structure may also result in a high ROE, where the high debt levels could be a huge risk . To know the 2 risks we have identified for Singapore Technologies Engineering visit our risks dashboard for free.

How Does Debt Impact ROE?

Virtually all companies need money to invest in the business, to grow profits. The cash for investment can come from prior year profits (retained earnings), issuing new shares, or borrowing. In the first two cases, the ROE will capture this use of capital to grow. In the latter case, the debt required for growth will boost returns, but will not impact the shareholders' equity. That will make the ROE look better than if no debt was used.

Combining Singapore Technologies Engineering's Debt And Its 23% Return On Equity

Singapore Technologies Engineering clearly uses a high amount of debt to boost returns, as it has a debt to equity ratio of 2.15. While no doubt that its ROE is impressive, we would have been even more impressed had the company achieved this with lower debt. Investors should think carefully about how a company might perform if it was unable to borrow so easily, because credit markets do change over time.

Summary

Return on equity is one way we can compare its business quality of different companies. In our books, the highest quality companies have high return on equity, despite low debt. If two companies have around the same level of debt to equity, and one has a higher ROE, I'd generally prefer the one with higher ROE.

Having said that, while ROE is a useful indicator of business quality, you'll have to look at a whole range of factors to determine the right price to buy a stock. The rate at which profits are likely to grow, relative to the expectations of profit growth reflected in the current price, must be considered, too.