Core & Main, Inc.'s (NYSE:CNM) price-to-earnings (or "P/E") ratio of 22.3x might make it look like a sell right now compared to the market in the United States, where around half of the companies have P/E ratios below 18x and even P/E's below 10x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's as high as it is.

Core & Main's negative earnings growth of late has neither been better nor worse than most other companies. It might be that many expect the company's earnings to strengthen positively despite the tough market conditions, which has kept the P/E from falling. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

Keen to find out how analysts think Core & Main's future stacks up against the industry? In that case, our free report is a great place to start.

How Is Core & Main's Growth Trending?

There's an inherent assumption that a company should outperform the market for P/E ratios like Core & Main's to be considered reasonable.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. Still, the latest three year period has seen an excellent 14,789% overall rise in EPS, in spite of its uninspiring short-term performance. Accordingly, shareholders would have probably welcomed those medium-term rates of earnings growth.

Turning to the outlook, the next three years should generate growth of 12% per annum as estimated by the twelve analysts watching the company. That's shaping up to be similar to the 11% each year growth forecast for the broader market.

In light of this, it's curious that Core & Main's P/E sits above the majority of other companies. Apparently many investors in the company are more bullish than analysts indicate and aren't willing to let go of their stock right now. These shareholders may be setting themselves up for disappointment if the P/E falls to levels more in line with the growth outlook.

The Bottom Line On Core & Main's P/E

It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

Our examination of Core & Main's analyst forecasts revealed that its market-matching earnings outlook isn't impacting its high P/E as much as we would have predicted. When we see an average earnings outlook with market-like growth, we suspect the share price is at risk of declining, sending the high P/E lower. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

There are also other vital risk factors to consider before investing and we've discovered 1 warning sign for Core & Main that you should be aware of.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

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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.