It might seem bad, but the worst that can happen when you buy a stock (without leverage) is that its share price goes to zero. But if you buy shares in a really great company, you can more than double your money. To wit, the Zhongtian Service Co., Ltd. (SZSE:002188) share price has flown 137% in the last three years. How nice for those who held the stock! Better yet, the share price has risen 31% in the last week.

The past week has proven to be lucrative for Zhongtian Service investors, so let's see if fundamentals drove the company's three-year performance.

View our latest analysis for Zhongtian Service

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 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.

Zhongtian Service became profitable within the last three years. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

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

A Different Perspective

We're pleased to report that Zhongtian Service shareholders have received a total shareholder return of 96% over one year. There's no doubt those recent returns are much better than the TSR loss of 11% per year over five years. We generally put more weight on the long term performance over the short term, but the recent improvement could hint at a (positive) inflection point within the business. 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. To that end, you should be aware of the 2 warning signs we've spotted with Zhongtian Service .

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

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