Gritstone bio (NASDAQ:GRTS) investors are sitting on a loss of 87% if they invested three years ago

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Gritstone bio, Inc. (NASDAQ:GRTS) shareholders will doubtless be very grateful to see the share price up 52% in the last month. But the last three years have seen a terrible decline. To wit, the share price sky-dived 87% in that time. So we're relieved for long term holders to see a bit of uplift. But the more important question is whether the underlying business can justify a higher price still. While a drop like that is definitely a body blow, money isn't as important as health and happiness.

With that in mind, it's worth seeing if the company's underlying fundamentals have been the driver of long term performance, or if there are some discrepancies.

See our latest analysis for Gritstone bio

Gritstone bio isn't currently profitable, so most analysts would look to revenue growth to get an idea of how fast the underlying business is growing. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. 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.

Over the last three years, Gritstone bio's revenue dropped 18% per year. That's definitely a weaker result than most pre-profit companies report. And as you might expect the share price has been weak too, dropping at a rate of 23% per year. 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 graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

earnings-and-revenue-growth
earnings-and-revenue-growth

You can see how its balance sheet has strengthened (or weakened) over time in this free interactive graphic.

A Different Perspective

Gritstone bio shareholders are down 13% for the year, but the market itself is up 21%. 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 12% 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. 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. Even so, be aware that Gritstone bio is showing 4 warning signs in our investment analysis , and 1 of those shouldn't be ignored...

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: insiders have been buying them).

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.

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