Tandem Diabetes Care (NASDAQ:TNDM) rallies 6.1% this week, taking five-year gains to 487%

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It hasn't been the best quarter for Tandem Diabetes Care, Inc. (NASDAQ:TNDM) shareholders, since the share price has fallen 11% in that time. But that doesn't undermine the fantastic longer term performance (measured over five years). Indeed, the share price is up a whopping 487% in that time. So we don't think the recent decline in the share price means its story is a sad one. The most important thing for savvy investors to consider is whether the underlying business can justify the share price gain. Unfortunately not all shareholders will have held it for the long term, so spare a thought for those caught in the 66% decline over the last twelve months.

On the back of a solid 7-day performance, let's check what role the company's fundamentals have played in driving long term shareholder returns.

View our latest analysis for Tandem Diabetes Care

Given that Tandem Diabetes Care didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. That's because fast revenue growth can be easily extrapolated to forecast profits, often of considerable size.

For the last half decade, Tandem Diabetes Care can boast revenue growth at a rate of 35% per year. That's well above most pre-profit companies. Arguably, this is well and truly reflected in the strong share price gain of 42%(per year) over the same period. It's never too late to start following a top notch stock like Tandem Diabetes Care, since some long term winners go on winning for decades. So we'd recommend you take a closer look at this one, but keep in mind the market seems optimistic.

You can see below how earnings and revenue have changed over time (discover the exact values by clicking on the image).

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

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. If you are thinking of buying or selling Tandem Diabetes Care stock, you should check out this free report showing analyst profit forecasts.

A Different Perspective

While the broader market lost about 9.8% in the twelve months, Tandem Diabetes Care shareholders did even worse, losing 66%. 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. On the bright side, long term shareholders have made money, with a gain of 42% per year over half a decade. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. 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. Take risks, for example - Tandem Diabetes Care has 1 warning sign we think you should be aware of.

Tandem Diabetes Care is not the only stock insiders are buying. So take a peek at this free list of growing companies with insider buying.

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

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

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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