3M Company's (NYSE:MMM) price-to-sales (or "P/S") ratio of 1.6x may not look like an appealing investment opportunity when you consider close to half the companies in the Industrials industry in the United States have P/S ratios below 0.7x. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's as high as it is.

How Has 3M Performed Recently?

While the industry has experienced revenue growth lately, 3M's revenue has gone into reverse gear, which is not great. One possibility is that the P/S ratio is high because investors think this poor revenue performance will turn the corner. If not, then existing shareholders may be extremely nervous about the viability of the share price.

How Is 3M's Revenue Growth Trending?

3M's P/S ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform better than the industry.

Taking a look back first, the company's revenue growth last year wasn't something to get excited about as it posted a disappointing decline of 4.5%. Unfortunately, that's brought it right back to where it started three years ago with revenue growth being virtually non-existent overall during that time. Accordingly, shareholders probably wouldn't have been overly satisfied with the unstable medium-term growth rates.

Turning to the outlook, the next three years should generate growth of 2.4% per year as estimated by the analysts watching the company. With the industry predicted to deliver 5.5% growth per year, the company is positioned for a weaker revenue result.

With this information, we find it concerning that 3M is trading at a P/S higher than the industry. Apparently many investors in the company are way more bullish than analysts indicate and aren't willing to let go of their stock at any price. There's a good chance these shareholders are setting themselves up for future disappointment if the P/S falls to levels more in line with the growth outlook.

The Final Word

While the price-to-sales ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of revenue expectations.

We've concluded that 3M currently trades on a much higher than expected P/S since its forecast growth is lower than the wider industry. The weakness in the company's revenue estimate doesn't bode well for the elevated P/S, which could take a fall if the revenue sentiment doesn't improve. Unless these conditions improve markedly, it's very challenging to accept these prices as being reasonable.

It is also worth noting that we have found 2 warning signs for 3M that you need to take into consideration.

If strong companies turning a profit tickle your fancy, then you'll want to check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.