The market wasn't impressed with the soft earnings from Power Integrations, Inc. (NASDAQ:POWI) recently. We did some analysis, and found that there are some reasons to be cautious about the headline numbers.

Check out our latest analysis for Power Integrations

An Unusual Tax Situation

We can see that Power Integrations received a tax benefit of US$11m. This is of course a bit out of the ordinary, given it is more common for companies to be paying tax than receiving 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. So while we think it's great to receive a tax benefit, it does tend to imply an increased risk that the statutory profit overstates the sustainable earnings power of the business.

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 Power Integrations' Profit Performance

As we have already discussed Power Integrations 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 Power Integrations' true underlying earnings power is actually less than its statutory profit. Sadly, its EPS was down over the last twelve months. 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. If you want to do dive deeper into Power Integrations, you'd also look into what risks it is currently facing. While conducting our analysis, we found that Power Integrations has 2 warning signs and it would be unwise to ignore these.

Today we've zoomed in on a single data point to better understand the nature of Power Integrations' profit. But there is always more to discover if you are capable of focussing your mind on minutiae. Some people consider a high return on equity to be a good sign of a quality business. 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.

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.