To the annoyance of some shareholders, Atomos Limited (ASX:AMS) shares are down a considerable 29% in the last month, which continues a horrid run for the company. Longer-term shareholders will rue the drop in the share price, since it's now virtually flat for the year after a promising few quarters.

Even after such a large drop in price, there still wouldn't be many who think Atomos' price-to-sales (or "P/S") ratio of 0.9x is worth a mention when the median P/S in Australia's Consumer Durables industry is similar at about 0.6x. 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 Atomos

How Atomos Has Been Performing

For example, consider that Atomos' financial performance has been poor lately as its revenue has been in decline. It might be that many expect the company to put the disappointing revenue performance behind them over the coming period, which has kept the P/S from falling. If you like the company, you'd at least be hoping this is the case so that you could potentially pick up some stock while it's not quite in favour.

Although there are no analyst estimates available for Atomos, take a look at this free data-rich visualisation to see how the company stacks up on earnings, revenue and cash flow.

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

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

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 16%. As a result, revenue from three years ago have also fallen 55% overall. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Comparing that to the industry, which is predicted to deliver 7.4% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

With this in mind, we find it worrying that Atomos' P/S exceeds that of its industry peers. Apparently many investors in the company are way less bearish than recent times would indicate and aren't willing to let go of their stock right now. There's a good chance existing shareholders are setting themselves up for future disappointment if the P/S falls to levels more in line with the recent negative growth rates.

The Key Takeaway

Following Atomos' share price tumble, its P/S is just clinging on to the industry median P/S. 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.

The fact that Atomos currently trades at a P/S on par with the rest of the industry is surprising to us since its recent revenues have been in decline over the medium-term, all while the industry is set to grow. Even though it matches the industry, we're uncomfortable with the current P/S ratio, as this dismal revenue performance is unlikely to support a more positive sentiment for long. Unless the the circumstances surrounding the recent medium-term improve, it wouldn't be wrong to expect a a difficult period ahead for the company's shareholders.

It is also worth noting that we have found 5 warning signs for Atomos (3 shouldn't be ignored!) that you need to take into consideration.

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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