It is doubtless a positive to see that the Guangdong KinLong Hardware Products Co.,Ltd. (SZSE:002791) share price has gained some 39% in the last three months. But that doesn't change the fact that the returns over the last three years have been stomach churning. Indeed, the share price is down a whopping 77% in the last three years. Arguably, the recent bounce is to be expected after such a bad drop. The thing to think about is whether the business has really turned around.

Although the past week has been more reassuring for shareholders, they're still in the red over the last three years, so let's see if the underlying business has been responsible for the decline.

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

Guangdong KinLong Hardware ProductsLtd saw its EPS decline at a compound rate of 33% per year, over the last three years. This fall in EPS isn't far from the rate of share price decline, which was 38% per year. That suggests that the market sentiment around the company hasn't changed much over that time, despite the disappointment. In this case, it seems that the EPS is guiding the share price.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

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. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

A Different Perspective

Investors in Guangdong KinLong Hardware ProductsLtd had a tough year, with a total loss of 36% (including dividends), against a market gain of about 7.5%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Longer term investors wouldn't be so upset, since they would have made 0.6%, 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. Even so, be aware that Guangdong KinLong Hardware ProductsLtd is showing 1 warning sign in our investment analysis , you should know about...

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.