Despite an already strong run, Anji Foodstuff Co., Ltd (SHSE:603696) shares have been powering on, with a gain of 37% in the last thirty days. The bad news is that even after the stocks recovery in the last 30 days, shareholders are still underwater by about 2.0% over the last year.

Since its price has surged higher, given around half the companies in China's Food industry have price-to-sales ratios (or "P/S") below 2x, you may consider Anji Foodstuff as a stock to avoid entirely with its 4.4x P/S ratio. However, the P/S might be quite high for a reason and it requires further investigation to determine if it's justified.

What Does Anji Foodstuff's Recent Performance Look Like?

For example, consider that Anji Foodstuff's financial performance has been poor lately as its revenue has been in decline. It might be that many expect the company to still outplay most other companies over the coming period, which has kept the P/S from collapsing. If not, then existing shareholders may be quite nervous about the viability of the share price.

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

Anji Foodstuff's P/S ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the industry.

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 7.3%. That put a dampener on the good run it was having over the longer-term as its three-year revenue growth is still a noteworthy 12% in total. So we can start by confirming that the company has generally done a good job of growing revenue over that time, even though it had some hiccups along the way.

Comparing the recent medium-term revenue trends against the industry's one-year growth forecast of 16% shows it's noticeably less attractive.

With this in mind, we find it worrying that Anji Foodstuff's P/S exceeds that of its industry peers. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh heavily on the share price eventually.

What We Can Learn From Anji Foodstuff's P/S?

Anji Foodstuff's P/S has grown nicely over the last month thanks to a handy boost in the share price. 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.

The fact that Anji Foodstuff currently trades on a higher P/S relative to the industry is an oddity, since its recent three-year growth is lower than the wider industry forecast. When we observe slower-than-industry revenue growth alongside a high P/S ratio, we assume there to be a significant risk of the share price decreasing, which would result in a lower P/S ratio. If recent medium-term revenue trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

Don't forget that there may be other risks. For instance, we've identified 3 warning signs for Anji Foodstuff (2 make us uncomfortable) you should be aware of.

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.

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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.