Those holding Hangzhou Gaoxin Materials Technology Co., Ltd. (SZSE:300478) shares would be relieved that the share price has rebounded 27% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 15% over that time.

After such a large jump in price, given close to half the companies operating in China's Chemicals industry have price-to-sales ratios (or "P/S") below 1.8x, you may consider Hangzhou Gaoxin Materials Technology as a stock to potentially avoid with its 3x P/S ratio. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/S.

How Has Hangzhou Gaoxin Materials Technology Performed Recently?

Hangzhou Gaoxin Materials Technology has been doing a decent job lately as it's been growing revenue at a reasonable pace. Perhaps the market believes the recent revenue performance is strong enough to outperform the industry, which has inflated the P/S ratio. However, if this isn't the case, investors might get caught out paying too much for the stock.

Do Revenue Forecasts Match The High P/S Ratio?

Hangzhou Gaoxin Materials Technology's P/S ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform better than the industry.

If we review the last year of revenue growth, the company posted a worthy increase of 3.7%. Still, lamentably revenue has fallen 4.7% in aggregate from three years ago, which is disappointing. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 24% shows it's an unpleasant look.

In light of this, it's alarming that Hangzhou Gaoxin Materials Technology's P/S sits above the majority of other companies. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. 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 Hangzhou Gaoxin Materials Technology's P/S?

Hangzhou Gaoxin Materials Technology's P/S is on the rise since its shares have risen strongly. 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.

We've established that Hangzhou Gaoxin Materials Technology currently trades on a much higher than expected P/S since its recent revenues have been in decline over the medium-term. Right now we aren't comfortable with the high P/S as this revenue performance is highly unlikely to support such positive sentiment for long. 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.

Plus, you should also learn about these 3 warning signs we've spotted with Hangzhou Gaoxin Materials Technology (including 2 which are a bit concerning).

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.