When you buy a stock there is always a possibility that it could drop 100%. But on the bright side, you can make far more than 100% on a really good stock. Long term Guangdong Advertising Group Co.,Ltd (SZSE:002400) shareholders would be well aware of this, since the stock is up 255% in five years. On top of that, the share price is up 126% in about a quarter.

Since the stock has added CN¥872m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. 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 the last half decade, Guangdong Advertising GroupLtd became profitable. 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).

Dive deeper into Guangdong Advertising GroupLtd's key metrics by checking this interactive graph of Guangdong Advertising GroupLtd's earnings, revenue and cash flow.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). 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. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. In the case of Guangdong Advertising GroupLtd, it has a TSR of 262% 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

We're pleased to report that Guangdong Advertising GroupLtd shareholders have received a total shareholder return of 79% over one year. That's including the dividend. Since the one-year TSR is better than the five-year TSR (the latter coming in at 29% per year), it would seem that the stock's performance has improved in recent times. In the best case scenario, this may hint at some real business momentum, implying that now could be a great time to delve deeper. 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. Consider risks, for instance. Every company has them, and we've spotted 2 warning signs for Guangdong Advertising GroupLtd you should know about.

If you are like me, then you will not want to miss this free list of undervalued small caps that insiders are 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.