We Think That There Are More Issues For S-Oil (KRX:010950) Than Just Sluggish Earnings

Shareholders didn't appear too concerned by S-Oil Corporation's (KRX:010950) weak earnings. Our analysis suggests that they may be missing some concerning details underlying the profit numbers.

View our latest analysis for S-Oil

The Impact Of Unusual Items On Profit

To properly understand S-Oil's profit results, we need to consider the ₩36b gain attributed to unusual items. We can't deny that higher profits generally leave us optimistic, but we'd prefer it if the profit were to be sustainable. When we crunched the numbers on thousands of publicly listed companies, we found that a boost from unusual items in a given year is often not repeated the next year. Which is hardly surprising, given the name. If S-Oil doesn't see that contribution repeat, then all else being equal we'd expect its profit to drop over the current year.

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

Having already discussed the impact of the unusual items, we should also note that S-Oil received a tax benefit of ₩112b. It's always a bit noteworthy when a company is paid by the tax man, rather than paying the tax man. The receipt of a tax benefit is obviously a good thing, on its own. 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. 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.

Our Take On S-Oil's Profit Performance

In the last year S-Oil 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. Furthermore, it also benefitted from a positive unusual item, which boosted the profit result even higher. Considering all this we'd argue S-Oil's profits probably give an overly generous impression of its sustainable level of profitability. So if you'd like to dive deeper into this stock, it's crucial to consider any risks it's facing. To help with this, we've discovered 4 warning signs (2 are a bit concerning!) that you ought to be aware of before buying any shares in S-Oil.

In this article we've looked at a number of factors that can impair the utility of profit numbers, and we've come away cautious. 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.

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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.