When you see that almost half of the companies in the Consumer Durables industry in the United States have price-to-sales ratios (or "P/S") below 0.7x, Sonos, Inc. (NASDAQ:SONO) looks to be giving off some sell signals with its 1.3x P/S ratio. However, the P/S might be high for a reason and it requires further investigation to determine if it's justified.

See our latest analysis for Sonos

How Has Sonos Performed Recently?

Sonos could be doing better as its revenue has been going backwards lately while most other companies have been seeing positive revenue growth. Perhaps the market is expecting the poor revenue to reverse, justifying it's current high P/S.. If not, then existing shareholders may be extremely nervous about the viability of the share price.

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

In order to justify its P/S ratio, Sonos would need to produce impressive growth in excess of 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 5.6%. 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 25% in total. So we can start by confirming that the company has generally done a good job of growing revenue over that time, even though it had some hiccups along the way.

Turning to the outlook, the next three years should generate growth of 6.1% per year as estimated by the eight analysts watching the company. Meanwhile, the rest of the industry is forecast to expand by 4.2% per year, which is not materially different.

In light of this, it's curious that Sonos' P/S sits above the majority of other companies. It seems most investors are ignoring the fairly average growth expectations and are willing to pay up for exposure to the stock. Although, additional gains will be difficult to achieve as this level of revenue growth is likely to weigh down the share price eventually.

What Does Sonos' P/S Mean For Investors?

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.

Seeing as its revenues are forecast to grow in line with the wider industry, it would appear that Sonos currently trades on a higher than expected P/S. The fact that the revenue figures aren't setting the world alight has us doubtful that the company's elevated P/S can be sustainable for the long term. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Many other vital risk factors can be found on the company's balance sheet. You can assess many of the main risks through our free balance sheet analysis for Sonos with six simple checks.

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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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.