Phenix Optical Company Limited (SHSE:600071) shareholders that were waiting for something to happen have been dealt a blow with a 27% share price drop in the last month. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 35% in that time.

After such a large drop in price, Phenix Optical may be sending bullish signals at the moment with its price-to-sales (or "P/S") ratio of 2.5x, since almost half of all companies in the Electronic industry in China have P/S ratios greater than 3.2x 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.

What Does Phenix Optical's Recent Performance Look Like?

It looks like revenue growth has deserted Phenix Optical recently, which is not something to boast about. Perhaps the market believes the recent lacklustre revenue performance is a sign of future underperformance relative to industry peers, hurting the P/S. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

How Is Phenix Optical's Revenue Growth Trending?

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

If we review the last year of revenue, the company posted a result that saw barely any deviation from a year ago. However, a few strong years before that means that it was still able to grow revenue by an impressive 56% in total over the last three years. Accordingly, shareholders will be pleased, but also have some questions to ponder about the last 12 months.

This is in contrast to the rest of the industry, which is expected to grow by 60% over the next year, materially higher than the company's recent medium-term annualised growth rates.

With this in consideration, it's easy to understand why Phenix Optical's P/S falls short of the mark set by its industry peers. It seems most investors are expecting to see the recent limited growth rates continue into the future and are only willing to pay a reduced amount for the stock.

The Key Takeaway

Phenix Optical's P/S has taken a dip along with its share price. While the price-to-sales ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of revenue expectations.

As we suspected, our examination of Phenix Optical revealed its three-year revenue trends are contributing to its low P/S, given they look worse than current industry expectations. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. If recent medium-term revenue trends continue, it's hard to see the share price experience a reversal of fortunes anytime soon.

Don't forget that there may be other risks. For instance, we've identified 2 warning signs for Phenix Optical that you should be aware of.

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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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.