Appen Limited (ASX:APX) shareholders might be concerned after seeing the share price drop 22% in the last quarter. But that doesn't change the fact that the returns over the last half decade have been spectacular. In that time, the share price has soared some 465% higher! Arguably, the recent fall is to be expected after such a strong rise. The most important thing for savvy investors to consider is whether the underlying business can justify the share price gain. Unfortunately not all shareholders will have held it for the long term, so spare a thought for those caught in the 53% decline over the last twelve months.

Check out our latest analysis for Appen

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 five years of share price growth, Appen achieved compound earnings per share (EPS) growth of 37% per year. This EPS growth is reasonably close to the 41% average annual increase in the share price. Therefore one could conclude that sentiment towards the shares hasn't morphed very much. In fact, the share price seems to largely reflect the EPS growth.

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

We know that Appen has improved its bottom line over the last three years, but what does the future have in store? Take a more thorough look at Appen's financial health with this free report on its balance sheet.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of Appen, it has a TSR of 488% for the last 5 years. That exceeds its share price return that we previously mentioned. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

While the broader market gained around 34% in the last year, Appen shareholders lost 53% (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 43%, each year, over five years. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. It's always interesting to track share price performance over the longer term. But to understand Appen better, we need to consider many other factors. Case in point: We've spotted 2 warning signs for Appen you should be aware of.

For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

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

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