In order to justify the effort of selecting individual stocks, it's worth striving to beat the returns from a market index fund. But if you try your hand at stock picking, your risk returning less than the market. We regret to report that long term Haemonetics Corporation (NYSE:HAE) shareholders have had that experience, with the share price dropping 29% in three years, versus a market return of about 22%.

Since Haemonetics has shed US$175m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

View our latest analysis for Haemonetics

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

During the unfortunate three years of share price decline, Haemonetics actually saw its earnings per share (EPS) improve by 6.4% per year. Given the share price reaction, one might suspect that EPS is not a good guide to the business performance during the period (perhaps due to a one-off loss or gain). Alternatively, growth expectations may have been unreasonable in the past.

It's worth taking a look at other metrics, because the EPS growth doesn't seem to match with the falling share price.

We note that, in three years, revenue has actually grown at a 13% annual rate, so that doesn't seem to be a reason to sell shares. This analysis is just perfunctory, but it might be worth researching Haemonetics more closely, as sometimes stocks fall unfairly. This could present an opportunity.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

We know that Haemonetics has improved its bottom line lately, but what does the future have in store? You can see what analysts are predicting for Haemonetics in this interactive graph of future profit estimates.

A Different Perspective

While the broader market gained around 20% in the last year, Haemonetics shareholders lost 3.5%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. Unfortunately, longer term shareholders are suffering worse, given the loss of 3% doled out over the last five years. We would want clear information suggesting the company will grow, before taking the view that the share price will stabilize. 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 Haemonetics you should be aware of.

If you are like me, then you will not want to miss this free list of growing companies that insiders are buying.

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