Inspire Medical Systems (NYSE:INSP) Strong Profits May Be Masking Some Underlying Issues

The market shrugged off Inspire Medical Systems, Inc.'s (NYSE:INSP) solid earnings report. We think that investors might be worried about some concerning underlying factors.

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How Do Unusual Items Influence Profit?

To properly understand Inspire Medical Systems' profit results, we need to consider the US$20m expense attributed to unusual items. It's never great to see unusual items costing the company profits, but on the upside, things might improve sooner rather than later. When we analysed the vast majority of listed companies worldwide, we found that significant unusual items are often not repeated. And that's hardly a surprise given these line items are considered unusual. In the twelve months to September 2026, Inspire Medical Systems had a big unusual items expense. All else being equal, this would likely have the effect of making the statutory profit look worse than its underlying earnings power.

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.

An Unusual Tax Situation

Just as we noted the unusual items, we must inform you that Inspire Medical Systems received a tax benefit which contributed US$70m to the bottom line. It's always a bit noteworthy when a company is paid by the tax man, rather than paying the tax man. We're sure the company was pleased with its tax benefit. However, our data indicates that tax benefits can temporarily boost statutory profit in the year it is booked, but subsequently profit may fall back. In the likely event the tax benefit is not repeated, we'd expect to see its statutory profit levels drop, at least in the absence of strong growth. 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.

Our Take On Inspire Medical Systems' Profit Performance

In the last year Inspire Medical Systems received a tax benefit, which boosted its profit in a way that might not be much more sustainable than turning prime farmland into gas fields. But on the other hand, it also saw an unusual item depress its profit. Given the contrasting considerations, we don't have a strong view as to whether Inspire Medical Systems's profits are an apt reflection of its underlying potential for profit. So if you'd like to dive deeper into this stock, it's crucial to consider any risks it's facing. In terms of investment risks, we've identified 1 warning sign with Inspire Medical Systems, and understanding it should be part of your investment process.

Our examination of Inspire Medical Systems has focussed on certain factors that can make its earnings look better than they are. But there are plenty of other ways to inform your opinion of a company. 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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