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Did Marston's PLC (LON:MARS) Use Debt To Deliver Its ROE Of 8.3%?

Simply Wall St

One of the best investments we can make is in our own knowledge and skill set. With that in mind, this article will work through how we can use Return On Equity (ROE) to better understand a business. We'll use ROE to examine Marston's PLC (LON:MARS), by way of a worked example.

Our data shows Marston's has a return on equity of 8.3% for the last year. That means that for every £1 worth of shareholders' equity, it generated £0.083 in profit.

See our latest analysis for Marston's

How Do You Calculate Return On Equity?

The formula for ROE is:

Return on Equity = Net Profit ÷ Shareholders' Equity

Or for Marston's:

8.3% = UK£74m ÷ UK£899m (Based on the trailing twelve months to March 2019.)

Most know that net profit is the total earnings after all expenses, but the concept of shareholders' equity is a little more complicated. It is all earnings retained by the company, plus any capital paid in by shareholders. You can calculate shareholders' equity by subtracting the company's total liabilities from its total assets.

What Does ROE Mean?

Return on Equity measures a company's profitability against the profit it has kept for the business (plus any capital injections). The 'return' is the profit over the last twelve months. A higher profit will lead to a higher ROE. So, as a general rule, a high ROE is a good thing. That means ROE can be used to compare two businesses.

Does Marston's Have A Good ROE?

One simple way to determine if a company has a good return on equity is to compare it to the average for its industry. Importantly, this is far from a perfect measure, because companies differ significantly within the same industry classification. The image below shows that Marston's has an ROE that is roughly in line with the Hospitality industry average (8.2%).

LSE:MARS Past Revenue and Net Income, September 6th 2019

That isn't amazing, but it is respectable. ROE can give us a view about company quality, but many investors also look to other factors, such as whether there are insiders buying shares. If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: insiders have been buying them).

The Importance Of Debt To Return On Equity

Companies usually need to invest money to grow their profits. The cash for investment can come from prior year profits (retained earnings), issuing new shares, or borrowing. In the first and second cases, the ROE will reflect this use of cash for investment in the business. 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 Marston's's Debt And Its 8.3% Return On Equity

It's worth noting the significant use of debt by Marston's, leading to its debt to equity ratio of 1.98. The company doesn't have a bad ROE, but it is less than ideal tht it has had to use debt to achieve its returns. Debt does bring extra risk, so it's only really worthwhile when a company generates some decent returns from it.

In Summary

Return on equity is one way we can compare the business quality of different companies. A company that can achieve a high return on equity without debt could be considered a high quality business. If two companies have the same ROE, then I would generally prefer the one with less debt.

But ROE is just one piece of a bigger puzzle, since high quality businesses often trade on high multiples of earnings. Profit growth rates, versus the expectations reflected in the price of the stock, are a particularly important to consider. So you might want to take a peek at this data-rich interactive graph of forecasts for the company.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.