Arcosa, Inc. (NYSE:ACA) just reported some strong earnings, and the market reacted accordingly with a healthy uplift in the share price. We did some analysis and think that investors are missing some details hidden beneath the profit numbers.

How Do Unusual Items Influence Profit?

To properly understand Arcosa's profit results, we need to consider the US$30m gain attributed to unusual items. While we like to see profit increases, we tend to be a little more cautious when unusual items have made a big contribution. 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. And that's as you'd expect, given these boosts are described as 'unusual'. Assuming those unusual items don't show up again in the current year, we'd thus expect profit to be weaker next year (in the absence of business growth, that is).

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 Arcosa's Profit Performance

We'd posit that Arcosa's statutory earnings aren't a clean read on ongoing productivity, due to the large unusual item. Therefore, it seems possible to us that Arcosa's true underlying earnings power is actually less than its statutory profit. The silver lining is that its EPS growth over the last year has been really wonderful, even if it's not a perfect measure. Of course, we've only just scratched the surface when it comes to analysing its earnings; one could also consider margins, forecast growth, and return on investment, among other factors. In light of this, if you'd like to do more analysis on the company, it's vital to be informed of the risks involved. For example, we've discovered 1 warning sign that you should run your eye over to get a better picture of Arcosa.

This note has only looked at a single factor that sheds light on the nature of Arcosa's profit. 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.

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.