The one-year loss for Jenoptik (ETR:JEN) shareholders likely driven by its shrinking earnings

Jenoptik AG (ETR:JEN) shareholders should be happy to see the share price up 18% in the last month. But that doesn't change the reality of under-performance over the last twelve months. In fact the stock is down 14% in the last year, well below the market return.

While the last year has been tough for Jenoptik shareholders, this past week has shown signs of promise. So let's look at the longer term fundamentals and see if they've been the driver of the negative returns.

This technology could replace computers: discover the 20 stocks are working to make quantum computing a reality.

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. 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).

Unhappily, Jenoptik had to report a 8.9% decline in EPS over the last year. The share price decline of 14% is actually more than the EPS drop. So it seems the market was too confident about the business, a year ago.

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

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 gained around 16% in the last year, Jenoptik shareholders lost 12% (even including dividends). 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. Longer term investors wouldn't be so upset, since they would have made 0.3%, each year, over five years. 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. 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 Jenoptik is showing 1 warning sign in our investment analysis , you should know about...

But note: Jenoptik may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

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

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.