Many investors are still learning about the various metrics that can be useful when analysing a stock. This article is for those who would like to learn about Return On Equity (ROE). To keep the lesson grounded in practicality, we'll use ROE to better understand Sonic Automotive, Inc. (NYSE:SAH).

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

Check out our latest analysis for Sonic Automotive

How Is ROE Calculated?

Return on equity can be calculated by using the formula:

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

So, based on the above formula, the ROE for Sonic Automotive is:

20% = US$190m ÷ US$945m (Based on the trailing twelve months to June 2024).

The 'return' is the yearly profit. So, this means that for every $1 of its shareholder's investments, the company generates a profit of $0.20.

Does Sonic Automotive 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. If you look at the image below, you can see Sonic Automotive has a similar ROE to the average in the Specialty Retail industry classification (20%).

That isn't amazing, but it is respectable. Although the ROE is similar to the industry, we should still perform further checks to see if the company's ROE is being boosted by high debt levels. If a company takes on too much debt, it is at higher risk of defaulting on interest payments. You can see the 2 risks we have identified for Sonic Automotive by visiting our risks dashboard for free on our platform here.

How Does Debt Impact ROE?

Most companies need money -- from somewhere -- to grow their profits. That cash can come from issuing shares, retained earnings, or debt. In the first two cases, the ROE will capture this use of capital to grow. In the latter case, the use of debt will improve the returns, but will not change the equity. In this manner the use of debt will boost ROE, even though the core economics of the business stay the same.

Sonic Automotive's Debt And Its 20% ROE

We think Sonic Automotive uses a significant amount of debt to maximize its returns, as it has a significantly higher debt to equity ratio of 3.85. Its ROE is respectable, but it's not so impressive once you consider all of the debt.