The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But on a lighter note, a good company can see its share price rise well over 100%. One great example is Ecovacs Robotics Co., Ltd. (SHSE:603486) which saw its share price drive 130% higher over five years. In the last week shares have slid back 4.0%.

While the stock has fallen 4.0% this week, it's worth focusing on the longer term and seeing if the stocks historical returns have been driven by the underlying fundamentals.

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

During five years of share price growth, Ecovacs Robotics achieved compound earnings per share (EPS) growth of 15% per year. So the EPS growth rate is rather close to the annualized share price gain of 18% per year. This indicates that investor sentiment towards the company has not changed a great deal. Indeed, it would appear the share price is reacting to the EPS.

You can see below how EPS has changed over time (discover the exact values by clicking on the image).

This free interactive report on Ecovacs Robotics' earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of Ecovacs Robotics, it has a TSR of 138% for the last 5 years. That exceeds its share price return that we previously mentioned. This is largely a result of its dividend payments!

A Different Perspective

It's good to see that Ecovacs Robotics has rewarded shareholders with a total shareholder return of 18% in the last twelve months. And that does include the dividend. Having said that, the five-year TSR of 19% a year, is even better. 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. Case in point: We've spotted 2 warning signs for Ecovacs Robotics you should be aware of.

We will like Ecovacs Robotics better if we see some big insider buys. While we wait, check out this free list of undervalued stocks (mostly small caps) with considerable, recent, insider buying.

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