AB Science (EPA:AB investor three-year losses grow to 85% as the stock sheds €8.3m this past week

As an investor, mistakes are inevitable. But you want to avoid the really big losses like the plague. So consider, for a moment, the misfortune of AB Science S.A. (EPA:AB) investors who have held the stock for three years as it declined a whopping 85%. That would be a disturbing experience. And over the last year the share price fell 75%, so we doubt many shareholders are delighted. The falls have accelerated recently, with the share price down 55% in the last three months. While a drop like that is definitely a body blow, money isn't as important as health and happiness.

If the past week is anything to go by, investor sentiment for AB Science isn't positive, so let's see if there's a mismatch between fundamentals and the share price.

Check out our latest analysis for AB Science

AB Science wasn't profitable in the last twelve months, it is unlikely we'll see a strong correlation between its share price and its earnings per share (EPS). Arguably revenue is our next best option. When a company doesn't make profits, we'd generally hope to see good revenue growth. 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 the last three years, AB Science's revenue dropped 25% per year. That's definitely a weaker result than most pre-profit companies report. The swift share price decline at an annual compound rate of 23%, reflects this weak fundamental performance. Never forget that loss making companies with falling revenue can and do cause losses for everyday investors. It's worth remembering that investors call buying a steeply falling share price 'catching a falling knife' because it is a dangerous pass time.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

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 0.7% in the last year, AB Science shareholders lost 75%. 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. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 12% per year over five years. 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. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Case in point: We've spotted 8 warning signs for AB Science you should be aware of, and 2 of them don't sit too well with us.

If you are like me, then you will not want to miss this free list of undervalued small caps 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 French 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.

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