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Costain Group's(LON:COST) Share Price Is Down 91% Over The Past Three Years.

Simply Wall St
·3-min read

As an investor, mistakes are inevitable. But really big losses can really drag down an overall portfolio. So consider, for a moment, the misfortune of Costain Group PLC (LON:COST) investors who have held the stock for three years as it declined a whopping 91%. That would certainly shake our confidence in the decision to own the stock. And more recent buyers are having a tough time too, with a drop of 77% in the last year. Shareholders have had an even rougher run lately, with the share price down 29% in the last 90 days.

We really feel for shareholders in this scenario. It's a good reminder of the importance of diversification, and it's worth keeping in mind there's more to life than money, anyway.

View our latest analysis for Costain Group

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Over the three years that the share price declined, Costain Group's earnings per share (EPS) dropped significantly, falling to a loss. Due to the loss, it's not easy to use EPS as a reliable guide to the business. But it's safe to say we'd generally expect the share price to be lower as a result!

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

earnings-per-share-growth
earnings-per-share-growth

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

A Different Perspective

While the broader market lost about 12% in the twelve months, Costain Group shareholders did even worse, losing 77%. Having said that, it's inevitable that some stocks will be oversold in a falling market. The key is to keep your eyes on the fundamental developments. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 13% per year over five years. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. It's always interesting to track share price performance over the longer term. But to understand Costain Group better, we need to consider many other factors. Even so, be aware that Costain Group is showing 2 warning signs in our investment analysis , and 1 of those is a bit unpleasant...

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 GB exchanges.

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. 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.

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