Mianyang Fulin Precision Co.,Ltd. (SZSE:300432) shareholders might be concerned after seeing the share price drop 20% in the last quarter. But in stark contrast, the returns over the last half decade have impressed. In fact, the share price is 193% higher today. We think it's more important to dwell on the long term returns than the short term returns. Only time will tell if there is still too much optimism currently reflected in the share price. Unfortunately not all shareholders will have held it for the long term, so spare a thought for those caught in the 40% decline over the last twelve months.

Since the stock has added CN¥514m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

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 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, Mianyang Fulin PrecisionLtd achieved compound earnings per share (EPS) growth of 45% per year. We do note that extraordinary items have impacted its earnings history. This EPS growth is higher than the 24% average annual increase in the share price. Therefore, it seems the market has become relatively pessimistic about the company.

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

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

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). The TSR incorporates the value of any spin-offs or discounted capital raisings, along with any dividends, based on the assumption that the dividends are reinvested. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. As it happens, Mianyang Fulin PrecisionLtd's TSR for the last 5 years was 199%, which exceeds the share price return mentioned earlier. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

While the broader market lost about 11% in the twelve months, Mianyang Fulin PrecisionLtd shareholders did even worse, losing 39% (even including dividends). Having said that, it's inevitable that some stocks will be oversold in a falling market. The key is to keep your eyes on the fundamental developments. Longer term investors wouldn't be so upset, since they would have made 24%, 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. 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. Like risks, for instance. Every company has them, and we've spotted 2 warning signs for Mianyang Fulin PrecisionLtd (of which 1 can't be ignored!) you should know about.

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 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.