Investing in stocks inevitably means buying into some companies that perform poorly. But the last three years have been particularly tough on longer term Xiwang Foodstuffs Co.,Ltd. (SZSE:000639) shareholders. Regrettably, they have had to cope with a 56% drop in the share price over that period. And more recent buyers are having a tough time too, with a drop of 38% in the last year. More recently, the share price has dropped a further 23% in a month.

Since Xiwang FoodstuffsLtd has shed CN¥626m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

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, Xiwang FoodstuffsLtd moved from a loss to profitability. That would generally be considered a positive, so we are surprised to see the share price is down. So it's worth looking at other metrics to try to understand the share price move.

We think that the revenue decline over three years, at a rate of 4.7% per year, probably had some shareholders looking to sell. And that's not surprising, since it seems unlikely that EPS growth can continue for long in the absence of revenue growth.

You can see below how earnings and revenue have changed over time (discover the exact values by clicking on the image).

We're pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. It might be well worthwhile taking a look at our free report on Xiwang FoodstuffsLtd's earnings, revenue and cash flow.

A Different Perspective

While the broader market lost about 12% in the twelve months, Xiwang FoodstuffsLtd shareholders did even worse, losing 38%. 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. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 9% per year over five years. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. 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. For example, we've discovered 2 warning signs for Xiwang FoodstuffsLtd (1 is a bit unpleasant!) that you should be aware of before investing here.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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.