The main aim of stock picking is to find the market-beating stocks. But every investor is virtually certain to have both over-performing and under-performing stocks. At this point some shareholders may be questioning their investment in Lanzhou LS Heavy Equipment Co., Ltd (SHSE:603169), since the last five years saw the share price fall 37%. And it's not just long term holders hurting, because the stock is down 25% in the last year. Unfortunately the share price momentum is still quite negative, with prices down 11% in thirty days.

Since Lanzhou LS Heavy Equipment has shed CN¥405m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

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...' 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.

Lanzhou LS Heavy Equipment became profitable within the last five years. That would generally be considered a positive, so we are surprised to see the share price is down. Other metrics may better explain the share price move.

In contrast to the share price, revenue has actually increased by 15% a year in the five year period. So it seems one might have to take closer look at the fundamentals to understand why the share price languishes. After all, there may be an opportunity.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

We know that Lanzhou LS Heavy Equipment has improved its bottom line over the last three years, but what does the future have in store? Take a more thorough look at Lanzhou LS Heavy Equipment's financial health with this free report on its balance sheet.

A Different Perspective

While the broader market lost about 9.6% in the twelve months, Lanzhou LS Heavy Equipment shareholders did even worse, losing 25%. 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. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 6% over the last half decade. 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 instance, we've identified 2 warning signs for Lanzhou LS Heavy Equipment (1 can't be ignored) that you should be aware of.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can 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.