It is doubtless a positive to see that the Mango Excellent Media Co., Ltd. (SZSE:300413) share price has gained some 31% in the last three months. But that doesn't change the fact that the returns over the last three years have been less than pleasing. Truth be told the share price declined 44% in three years and that return, Dear Reader, falls short of what you could have got from passive investing with an index fund.

After losing 4.8% this past week, it's worth investigating the company's fundamentals to see what we can infer from past performance.

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Although the share price is down over three years, Mango Excellent Media actually managed to grow EPS by 9.5% per year in that time. This is quite a puzzle, and suggests there might be something temporarily buoying the share price. Alternatively, growth expectations may have been unreasonable in the past.

Since the change in EPS doesn't seem to correlate with the change in share price, it's worth taking a look at other metrics.

With a rather small yield of just 0.6% we doubt that the stock's share price is based on its dividend. With revenue flat over three years, it seems unlikely that the share price is reflecting the top line. There doesn't seem to be any clear correlation between the fundamental business metrics and the share price. That could mean that the stock was previously overrated, or it could spell opportunity now.

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

Mango Excellent Media is well known by investors, and plenty of clever analysts have tried to predict the future profit levels. If you are thinking of buying or selling Mango Excellent Media stock, you should check out this free report showing analyst consensus estimates for future profits.

A Different Perspective

Mango Excellent Media provided a TSR of 16% over the year (including dividends). That's fairly close to the broader market return. To take a positive view, the gain is pleasing, and it sure beats annualized TSR loss of 3%, which was endured over half a decade. While 'turnarounds seldom turn' there are green shoots for Mango Excellent Media. 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 3 warning signs for Mango Excellent Media you should be aware of, and 2 of them can't be ignored.

Of course Mango Excellent Media may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

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.