If you love investing in stocks you’re bound to buy some losers. Long term Energiekontor AG (ETR:EKT) shareholders know that all too well, since the share price is down considerably over three years. So they might be feeling emotional about the 55% share price collapse, in that time. And more recent buyers are having a tough time too, with a drop of 23% in the last year.

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.

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There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. 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).

Energiekontor saw its EPS decline at a compound rate of 3.1% per year, over the last three years. This reduction in EPS is slower than the 23% annual reduction in the share price. So it’s likely that the EPS decline has disappointed the market, leaving investors hesitant to buy.

The image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

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

Investors in Energiekontor had a tough year, with a total loss of 22% (including dividends), against a market gain of about 21%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Unfortunately, last year’s performance may indicate unresolved challenges, given that it was worse than the annualised loss of 5% over the last half decade. We realise that Baron Rothschild has said investors should “buy when there is blood on the streets”, but we caution that investors should first be sure they are buying a high quality business. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Even so, be aware that Energiekontor is showing 2 warning signs in our investment analysis , and 1 of those is concerning…

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: many of them are unnoticed AND have attractive valuation).

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

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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.