It's nice to see the Quanterix Corporation (NASDAQ:QTRX) share price up 17% in a week. But only the myopic could ignore the astounding decline over three years. To wit, the share price sky-dived 71% in that time. So we're relieved for long term holders to see a bit of uplift. Of course the real question is whether the business can sustain a turnaround.

While the last three years has been tough for Quanterix shareholders, this past week has shown signs of promise. So let's look at the longer term fundamentals and see if they've been the driver of the negative returns.

Because Quanterix made a loss in the last twelve months, we think the market is probably more focussed on revenue and revenue growth, at least for now. When a company doesn't make profits, we'd generally hope to see good revenue growth. That's because it's hard to be confident a company will be sustainable if revenue growth is negligible, and it never makes a profit.

In the last three years, Quanterix saw its revenue grow by 5.2% per year, compound. Given it's losing money in pursuit of growth, we are not really impressed with that. Nonetheless, it's fair to say the rapidly declining share price (down 20%, compound, over three years) suggests the market is very disappointed with this level of growth. While we're definitely wary of the stock, after that kind of performance, it could be an over-reaction. Of course, revenue growth is nice but generally speaking the lower the profits, the riskier the business - and this business isn't making steady profits.

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

It's good to see that there was some significant insider buying in the last three months. That's a positive. That said, we think earnings and revenue growth trends are even more important factors to consider. So we recommend checking out this free report showing consensus forecasts

A Different Perspective

While the broader market gained around 30% in the last year, Quanterix shareholders lost 45%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 7% per year over five years. 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's always interesting to track share price performance over the longer term. But to understand Quanterix better, we need to consider many other factors. For instance, we've identified 2 warning signs for Quanterix that you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: most of them are flying under the radar).

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.