It is hard to get excited after looking at SDI Group's (LON:SDI) recent performance, when its stock has declined 15% over the past three months. However, a closer look at its sound financials might cause you to think again. Given that fundamentals usually drive long-term market outcomes, the company is worth looking at. Specifically, we decided to study SDI Group's  ROE in this article.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. In short, ROE shows the profit each dollar generates with respect to its shareholder investments.

View our latest analysis for SDI Group

How Do You Calculate Return On Equity?

ROE 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 SDI Group is:

20% = UK£8.2m ÷ UK£41m (Based on the trailing twelve months to October 2022).

The 'return' is the amount earned after tax over the last twelve months. So, this means that for every £1 of its shareholder's investments, the company generates a profit of £0.20.

Why Is ROE Important For Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. We now need to evaluate how much profit the company reinvests or "retains" for future growth which then gives us an idea about the growth potential of the company. Generally speaking, other things being equal, firms with a high return on equity and profit retention, have a higher growth rate than firms that don’t share these attributes.

SDI Group's Earnings Growth And 20% ROE

At first glance, SDI Group seems to have a decent ROE. On comparing with the average industry ROE of 11% the company's ROE looks pretty remarkable. This certainly adds some context to SDI Group's exceptional 39% net income growth seen over the past five years. We believe that there might also be other aspects that are positively influencing the company's earnings growth. For instance, the company has a low payout ratio or is being managed efficiently.



Next, on comparing with the industry net income growth, we found that the growth figure reported by SDI Group compares quite favourably to the industry average, which shows a decline of 1.6% in the same period. past-earnings-growth

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. It’s important for an investor to know whether the market has priced in the company's expected earnings growth (or decline). By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. Is SDI fairly valued? This infographic on the company's intrinsic value  has everything you need to know.

Is SDI Group Making Efficient Use Of Its Profits?

Given that SDI Group doesn't pay any dividend to its shareholders, we infer that the company has been reinvesting all of its profits to grow its business.

Summary

Overall, we are quite pleased with SDI Group's performance. Particularly, we like that the company is reinvesting heavily into its business, and at a high rate of return. Unsurprisingly, this has led to an impressive earnings growth. Having said that, on studying current analyst estimates, we were concerned to see that while the company has grown its earnings in the past, analysts expect its earnings to shrink in the future. To know more about the company's future earnings growth forecasts take a look at this freereport on analyst forecasts for the company to find out more.

Have feedback on this article? Concerned about the content?Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

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