RF Industries, Ltd. (NASDAQ:RFIL) shareholders would be excited to see that the share price has had a great month, posting a 52% gain and recovering from prior weakness. The annual gain comes to 113% following the latest surge, making investors sit up and take notice.

Although its price has surged higher, RF Industries may still be sending bullish signals at the moment with its price-to-sales (or "P/S") ratio of 1.2x, since almost half of all companies in the Electronic industry in the United States have P/S ratios greater than 2.9x and even P/S higher than 6x are not unusual. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's limited.

How RF Industries Has Been Performing

With revenue growth that's superior to most other companies of late, RF Industries has been doing relatively well. One possibility is that the P/S ratio is low because investors think this strong revenue performance might be less impressive moving forward. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

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

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

In order to justify its P/S ratio, RF Industries would need to produce sluggish growth that's trailing the industry.

If we review the last year of revenue growth, the company posted a terrific increase of 24%. However, this wasn't enough as the latest three year period has seen the company endure a nasty 5.5% drop in revenue in aggregate. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Looking ahead now, revenue is anticipated to climb by 5.0% during the coming year according to the only analyst following the company. With the industry predicted to deliver 20% growth, the company is positioned for a weaker revenue result.

With this in consideration, its clear as to why RF Industries' P/S is falling short industry peers. Apparently many shareholders weren't comfortable holding on while the company is potentially eyeing a less prosperous future.

The Final Word

Despite RF Industries' share price climbing recently, its P/S still lags most other companies. We'd say the price-to-sales ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We've established that RF Industries maintains its low P/S on the weakness of its forecast growth being lower than the wider industry, as expected. Right now shareholders are accepting the low P/S as they concede future revenue probably won't provide any pleasant surprises. The company will need a change of fortune to justify the P/S rising higher in the future.

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.

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.