China Green Agriculture, Inc. (NYSE:CGA) shareholders would be excited to see that the share price has had a great month, posting a 40% gain and recovering from prior weakness. Unfortunately, despite the strong performance over the last month, the full year gain of 9.6% isn't as attractive.

In spite of the firm bounce in price, when close to half the companies operating in the United States' Chemicals industry have price-to-sales ratios (or "P/S") above 1.4x, you may still consider China Green Agriculture as an enticing stock to check out with its 0.4x P/S ratio. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/S.

How Has China Green Agriculture Performed Recently?

For instance, China Green Agriculture's receding revenue in recent times would have to be some food for thought. One possibility is that the P/S is low because investors think the company won't do enough to avoid underperforming the broader industry in the near future. Those who are bullish on China Green Agriculture will be hoping that this isn't the case so that they can pick up the stock at a lower valuation.

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

In order to justify its P/S ratio, China Green Agriculture would need to produce sluggish growth that's trailing 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 25%. This means it has also seen a slide in revenue over the longer-term as revenue is down 46% in total over the last three years. So unfortunately, we have to acknowledge that the company has not done a great job of growing revenue over that time.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 3.5% shows it's an unpleasant look.

In light of this, it's understandable that China Green Agriculture's P/S would sit below the majority of other companies. Nonetheless, there's no guarantee the P/S has reached a floor yet with revenue going in reverse. There's potential for the P/S to fall to even lower levels if the company doesn't improve its top-line growth.

The Key Takeaway

The latest share price surge wasn't enough to lift China Green Agriculture's P/S close to the industry median. Using the price-to-sales ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

It's no surprise that China Green Agriculture maintains its low P/S off the back of its sliding revenue over the medium-term. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

Before you settle on your opinion, we've discovered 3 warning signs for China Green Agriculture (1 is significant!) that you should be aware of.

It's important to make sure you look for a great company, not just the first idea you come across. So if growing profitability aligns with your idea of a great company, take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

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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.