In order to justify the effort of selecting individual stocks, it's worth striving to beat the returns from a market index fund. But the main game is to find enough winners to more than offset the losers So we wouldn't blame long term Fraport AG (ETR:FRA) shareholders for doubting their decision to hold, with the stock down 37% over a half decade.

Although the past week has been more reassuring for shareholders, they're still in the red over the last five years, so let's see if the underlying business has been responsible for the decline.

View our latest analysis for Fraport

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 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.

During five years of share price growth, Fraport moved from a loss to profitability. Most would consider that to be a good thing, so it's counter-intuitive to see the share price declining. Other metrics may better explain the share price move.

Revenue is actually up 6.5% over the time period. A more detailed examination of the revenue and earnings may or may not explain why the share price languishes; there could be an opportunity.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

We're pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. If you are thinking of buying or selling Fraport stock, you should check out this free report showing analyst profit forecasts.

A Different Perspective

While the broader market gained around 7.3% in the last year, Fraport shareholders lost 8.5%. 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. However, the loss over the last year isn't as bad as the 7% per annum loss investors have suffered over the last half decade. We'd need to see some sustained improvements in the key metrics before we could muster much enthusiasm. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. Take risks, for example - Fraport has 1 warning sign we think you should be aware of.