If you love investing in stocks you're bound to buy some losers. But the long term shareholders of Medios AG (ETR:ILM1) have had an unfortunate run in the last three years. So they might be feeling emotional about the 59% share price collapse, in that time. Furthermore, it's down 15% in about a quarter. That's not much fun for holders.

Since shareholders are down over the longer term, lets look at the underlying fundamentals over the that time and see if they've been consistent with returns.

View our latest analysis for Medios

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).

During the unfortunate three years of share price decline, Medios actually saw its earnings per share (EPS) improve by 9.2% per year. This is quite a puzzle, and suggests there might be something temporarily buoying the share price. Or else the company was over-hyped in the past, and so its growth has disappointed.

Since the change in EPS doesn't seem to correlate with the change in share price, it's worth taking a look at other metrics.

Revenue is actually up 16% over the three years, so the share price drop doesn't seem to hinge on revenue, either. This analysis is just perfunctory, but it might be worth researching Medios more closely, as sometimes stocks fall unfairly. This could present an opportunity.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

It's probably worth noting that the CEO is paid less than the median at similar sized companies. It's always worth keeping an eye on CEO pay, but a more important question is whether the company will grow earnings throughout the years. So it makes a lot of sense to check out what analysts think Medios will earn in the future (free profit forecasts).

Medios shareholders gained a total return of 8.4% during the year. But that return falls short of the market. On the bright side, that's still a gain, and it is certainly better than the yearly loss of about 4% endured over half a decade. So this might be a sign the business has turned its fortunes around. 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. Take risks, for example - Medios has 1 warning sign we think you should be aware of.

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.