Passive investing in an index fund is a good way to ensure your own returns roughly match the overall market. Active investors aim to buy stocks that vastly outperform the market - but in the process, they risk under-performance. Unfortunately the Weichai Power Co., Ltd. (HKG:2338) share price slid 47% over twelve months. That's disappointing when you consider the market declined 20%. Longer term shareholders haven't suffered as badly, since the stock is down a comparatively less painful 24% in three years. The falls have accelerated recently, with the share price down 29% in the last three months. However, one could argue that the price has been influenced by the general market, which is down 13% in the same timeframe.

Given the past week has been tough on shareholders, let's investigate the fundamentals and see what we can learn.

See our latest analysis for Weichai Power

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 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.

Unfortunately Weichai Power reported an EPS drop of 57% for the last year. This fall in the EPS is significantly worse than the 47% the share price fall. So the market may not be too worried about the EPS figure, at the moment -- or it may have expected earnings to drop faster.

The image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

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. Dive deeper into the earnings by checking this interactive graph of Weichai Power's earnings, revenue and cash flow.

A Different Perspective

We regret to report that Weichai Power shareholders are down 46% for the year (even including dividends). Unfortunately, that's worse than the broader market decline of 20%. However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. Longer term investors wouldn't be so upset, since they would have made 5%, each year, over five years. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. 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 1 warning sign for Weichai Power that you should be aware of before investing here.

We will like Weichai Power better if we see some big insider buys. While we wait, check out this free list of growing companies with considerable, recent, insider buying.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on HK 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.