There wouldn't be many who think Mercury Systems, Inc.'s (NASDAQ:MRCY) price-to-sales (or "P/S") ratio of 2.8x is worth a mention when the median P/S for the Aerospace & Defense industry in the United States is similar at about 2.6x. Although, it's not wise to simply ignore the P/S without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

How Mercury Systems Has Been Performing

Mercury Systems hasn't been tracking well recently as its declining revenue compares poorly to other companies, which have seen some growth in their revenues on average. One possibility is that the P/S ratio is moderate because investors think this poor revenue performance will turn around. If not, then existing shareholders may be a little nervous about the viability of the share price.

Want the full picture on analyst estimates for the company? Then our free report on Mercury Systems will help you uncover what's on the horizon.

Do Revenue Forecasts Match The P/S Ratio?

There's an inherent assumption that a company should be matching the industry for P/S ratios like Mercury Systems' to be considered reasonable.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 7.5%. As a result, revenue from three years ago have also fallen 9.0% overall. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Shifting to the future, estimates from the nine analysts covering the company suggest revenue should grow by 0.6% over the next year. With the industry predicted to deliver 14% growth, the company is positioned for a weaker revenue result.

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

The Final Word

Using the price-to-sales ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

When you consider that Mercury Systems' revenue growth estimates are fairly muted compared to the broader industry, it's easy to see why we consider it unexpected to be trading at its current P/S ratio. At present, we aren't confident in the P/S as the predicted future revenues aren't likely to support a more positive sentiment for long. Circumstances like this present a risk to current and prospective investors who may see share prices fall if the low revenue growth impacts the sentiment.

The company's balance sheet is another key area for risk analysis. You can assess many of the main risks through our free balance sheet analysis for Mercury Systems with six simple checks.

If these risks are making you reconsider your opinion on Mercury Systems, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.