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. By way of learning-by-doing, we’ll look at ROE to gain a better understanding of National Grid plc (LON:NG.).
Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. Simply put, it is used to assess the profitability of a company in relation to its equity capital.
See our latest analysis for National Grid
How Do You Calculate Return On Equity?
The formula for return on equity is:
Return on Equity = Net Profit (from continuing operations) ÷ Shareholders’ Equity
So, based on the above formula, the ROE for National Grid is:
11% = UK£2.9b ÷ UK£26b (Based on the trailing twelve months to September 2022).
The ‘return’ is the annual profit. Another way to think of that is that for every £1 worth of equity, the company was able to earn £0.11 in profit.
Does National Grid Have A Good Return On Equity?
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. You can see in the graphic below that National Grid has an ROE that is fairly close to the average for the Integrated Utilities industry (12%).
That’s neither particularly good, nor bad. While at least the ROE is not lower than the industry, its still worth checking what role the company’s debt plays as high debt levels relative to equity may also make the ROE appear high. If so, this increases its exposure to financial risk. You can see the 2 risks we have identified for National Grid by visiting our risk dashboard for free on our platform here.
The Importance Of Debt To Return On Equity
Virtually all companies need money to invest in the business, to grow profits. That cash can come from issuing shares, retained earnings, or debt. 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.
National Grid’s Debt And Its 11% ROE
It’s worth noting the high use of debt by National Grid, leading to its debt to equity ratio of 1.87. There’s no doubt its ROE is decent, but the very high debt the company carries is not too exciting to see. 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.
Return on equity is one way we can compare its business quality of different companies. Companies that can achieve high returns on equity without too much debt are generally of good quality. All else being equal, a higher ROE is better.
But when a business is high quality, the market often bids it up to a price that reflects this. It is important to consider other factors, such as future profit growth — and how much investment is required going forward. So I think it may be worth checking this free report on analyst forecasts for the company.
Of course National Grid may not be the best stock to buy. So you may wish to see this free collection of other companies that have high ROE and low debt.
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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.