Investing in stocks inevitably means buying into some companies that perform poorly. But the last three years have been particularly tough on longer term Vitasoy International Holdings Limited (HKG:345) shareholders. Sadly for them, the share price is down 66% in that time. And more recent buyers are having a tough time too, with a drop of 55% in the last year. Furthermore, it's down 11% in about a quarter. That's not much fun for holders. But this could be related to the weak market, which is down 9.7% in the same period.

With the stock having lost 3.0% in the past week, it's worth taking a look at business performance and seeing if there's any red flags.

View our latest analysis for Vitasoy International Holdings

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. 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.

Over the three years that the share price declined, Vitasoy International Holdings' earnings per share (EPS) dropped significantly, falling to a loss. Due to the loss, it's not easy to use EPS as a reliable guide to the business. But it's safe to say we'd generally expect the share price to be lower as a result!

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

We like that insiders have been buying shares in the last twelve months. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. It might be well worthwhile taking a look at our free report on Vitasoy International Holdings' earnings, revenue and cash flow.

A Different Perspective

While the broader market lost about 21% in the twelve months, Vitasoy International Holdings shareholders did even worse, losing 54%. 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. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 0.9% 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. It is all well and good that insiders have been buying shares, but we suggest you check here to see what price insiders were buying at.

Vitasoy International Holdings is not the only stock that insiders are buying. For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

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.