Insulet Corporation (NASDAQ:PODD) just reported some strong earnings, and the market reacted accordingly with a healthy uplift in the share price. However, we think that shareholders may be missing some concerning details in the numbers.

See our latest analysis for Insulet

An Unusual Tax Situation

Insulet reported a tax benefit of US$124m, which is well worth noting. This is meaningful because companies usually pay tax rather than receive tax benefits. Of course, prima facie it's great to receive a tax benefit. However, the devil in the detail is that these kind of benefits only impact in the year they are booked, and are often one-off in nature. Assuming the tax benefit is not repeated every year, we could see its profitability drop noticeably, all else being equal.

That might leave you wondering what analysts are forecasting in terms of future profitability. Luckily, you can click here to see an interactive graph depicting future profitability, based on their estimates.

Our Take On Insulet's Profit Performance

As we have already discussed Insulet reported that it received a tax benefit, rather than paying tax, in the last year. As a result we don't think its profit result, which includes that tax-boost, is a good guide to its sustainable profit levels. Therefore, it seems possible to us that Insulet's true underlying earnings power is actually less than its statutory profit. But the happy news is that, while acknowledging we have to look beyond the statutory numbers, those numbers are still improving, with EPS growing at a very high rate over the last year. At the end of the day, it's essential to consider more than just the factors above, if you want to understand the company properly. Keep in mind, when it comes to analysing a stock it's worth noting the risks involved. For example, we've discovered 2 warning signs that you should run your eye over to get a better picture of Insulet.

Today we've zoomed in on a single data point to better understand the nature of Insulet's profit. But there is always more to discover if you are capable of focussing your mind on minutiae. For example, many people consider a high return on equity as an indication of favorable business economics, while others like to 'follow the money' and search out stocks that insiders are buying. While it might take a little research on your behalf, you may find this free collection of companies boasting high return on equity, or this list of stocks with significant insider holdings to be useful.

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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.