Interface, Inc.'s (NASDAQ:TILE) price-to-sales (or "P/S") ratio of 0.9x might make it look like a buy right now compared to the Commercial Services industry in the United States, where around half of the companies have P/S ratios above 1.4x and even P/S above 4x are quite common. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's limited.

What Does Interface's P/S Mean For Shareholders?

Interface could be doing better as its revenue has been going backwards lately while most other companies have been seeing positive revenue growth. The P/S ratio is probably low because investors think this poor revenue performance isn't going to get any better. So while you could say the stock is cheap, investors will be looking for improvement before they see it as good value.

What Are Revenue Growth Metrics Telling Us About The Low P/S?

The only time you'd be truly comfortable seeing a P/S as low as Interface's is when the company's growth is on track to lag 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 1.3%. That put a dampener on the good run it was having over the longer-term as its three-year revenue growth is still a noteworthy 15% in total. Although it's been a bumpy ride, it's still fair to say the revenue growth recently has been mostly respectable for the company.

Looking ahead now, revenue is anticipated to climb by 5.0% during the coming year according to the three analysts following the company. With the industry predicted to deliver 7.2% growth, the company is positioned for a weaker revenue result.

With this information, we can see why Interface is trading at a P/S lower than the industry. It seems most investors are expecting to see limited future growth and are only willing to pay a reduced amount for the stock.

The Final Word

Typically, we'd caution against reading too much into price-to-sales ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

We've established that Interface maintains its low P/S on the weakness of its forecast growth being lower than the wider industry, as expected. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. The company will need a change of fortune to justify the P/S rising higher in the future.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 2 warning signs with Interface, and understanding these should be part of your investment process.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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