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Shareholders in SDI Group (LON:SDI) are in the red if they invested three years ago

SDI Group plc (LON:SDI) shareholders should be happy to see the share price up 11% in the last month. But that doesn't change the fact that the returns over the last three years have been disappointing. In that time, the share price dropped 60%. So it's good to see it climbing back up. Perhaps the company has turned over a new leaf.

With that in mind, it's worth seeing if the company's underlying fundamentals have been the driver of long term performance, or if there are some discrepancies.

Check out our latest analysis for SDI Group

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).


SDI Group saw its EPS decline at a compound rate of 23% per year, over the last three years. This fall in EPS isn't far from the rate of share price decline, which was 26% per year. So it seems like sentiment towards the stock hasn't changed all that much over time. In this case, it seems that the EPS is guiding the share price.

You can see how EPS has changed over time in the image below (click on the chart to see the exact values).


It might be well worthwhile taking a look at our free report on SDI Group's earnings, revenue and cash flow.

A Different Perspective

Investors in SDI Group had a tough year, with a total loss of 58%, against a market gain of about 4.1%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. On the bright side, long term shareholders have made money, with a gain of 8% per year over half a decade. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. It's always interesting to track share price performance over the longer term. But to understand SDI Group better, we need to consider many other factors. For instance, we've identified 3 warning signs for SDI Group that you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: insiders have been buying them).

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on British exchanges.

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

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.