Despite an already strong run, Senetas Corporation Limited (ASX:SEN) shares have been powering on, with a gain of 29% in the last thirty days. The last 30 days bring the annual gain to a very sharp 29%.

Even after such a large jump in price, there still wouldn't be many who think Senetas' price-to-sales (or "P/S") ratio of 1.4x is worth a mention when the median P/S in Australia's Communications industry is similar at about 1.8x. While this might not raise any eyebrows, if the P/S ratio is not justified investors could be missing out on a potential opportunity or ignoring looming disappointment.

View our latest analysis for Senetas

How Has Senetas Performed Recently?

Senetas' revenue growth of late has been pretty similar to most other companies. The P/S ratio is probably moderate because investors think this modest revenue performance will continue. Those who are bullish on Senetas will be hoping that revenue performance can pick up, so that they can pick up the stock at a slightly lower valuation.

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

Do Revenue Forecasts Match The P/S Ratio?

In order to justify its P/S ratio, Senetas would need to produce growth that's similar to the industry.

If we review the last year of revenue growth, the company posted a worthy increase of 6.5%. Pleasingly, revenue has also lifted 36% in aggregate from three years ago, partly thanks to the last 12 months of growth. So we can start by confirming that the company has done a great job of growing revenues over that time.

Turning to the outlook, the next year should generate growth of 7.8% as estimated by the lone analyst watching the company. With the industry predicted to deliver 15% growth, the company is positioned for a weaker revenue result.

With this information, we find it interesting that Senetas is trading at a fairly similar P/S compared to the industry. 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 Bottom Line On Senetas' P/S

Its shares have lifted substantially and now Senetas' P/S is back within range of the industry median. Generally, our preference is to limit the use of the price-to-sales ratio to establishing what the market thinks about the overall health of a company.

Our look at the analysts forecasts of Senetas' revenue prospects has shown that its inferior revenue outlook isn't negatively impacting its P/S as much as we would have predicted. 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. A positive change is needed in order to justify the current price-to-sales ratio.

Plus, you should also learn about these 4 warning signs we've spotted with Senetas (including 1 which can't be ignored).

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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