Mabpharm Limited (HKG:2181) shareholders should be happy to see the share price up 11% in the last week. But spare a thought for the long term holders, who have held the stock as it bled value over the last five years. Indeed, the share price is down a whopping 71% in that time. While the recent increase might be a green shoot, we're certainly hesitant to rejoice. The million dollar question is whether the company can justify a long term recovery.

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

Check out our latest analysis for Mabpharm

Given that Mabpharm didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. Some companies are willing to postpone profitability to grow revenue faster, but in that case one would hope for good top-line growth to make up for the lack of earnings.

Over five years, Mabpharm grew its revenue at 40% per year. That's better than most loss-making companies. So it's not at all clear to us why the share price sunk 11% throughout that time. It could be that the stock was over-hyped before. While there might be an opportunity here, you'd want to take a close look at the balance sheet strength.

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

Balance sheet strength is crucial. It might be well worthwhile taking a look at our free report on how its financial position has changed over time.

A Different Perspective

While the broader market gained around 30% in the last year, Mabpharm shareholders lost 36%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 11% over the last half decade. We realise that Baron Rothschild has said investors should "buy when there is blood on the streets", but we caution that investors should first be sure they are buying a high quality business. 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. Case in point: We've spotted 1 warning sign for Mabpharm you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: many of them are unnoticed AND have attractive valuation).

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

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.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.