Zhewen Pictures Group co.,ltd (SHSE:601599) shareholders are no doubt pleased to see that the share price has bounced 25% in the last month, although it is still struggling to make up recently lost ground. The last 30 days bring the annual gain to a very sharp 25%.

After such a large jump in price, Zhewen Pictures Groupltd's price-to-earnings (or "P/E") ratio of 40.8x might make it look like a sell right now compared to the market in China, where around half of the companies have P/E ratios below 30x and even P/E's below 18x are quite common. However, the P/E might be high for a reason and it requires further investigation to determine if it's justified.

Earnings have risen firmly for Zhewen Pictures Groupltd recently, which is pleasing to see. One possibility is that the P/E is high because investors think this respectable earnings growth will be enough to outperform the broader market in the near future. If not, then existing shareholders may be a little nervous about the viability of the share price.

How Is Zhewen Pictures Groupltd's Growth Trending?

In order to justify its P/E ratio, Zhewen Pictures Groupltd would need to produce impressive growth in excess of the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 23% last year. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. Accordingly, shareholders probably wouldn't have been overly satisfied with the unstable medium-term growth rates.

Weighing that recent medium-term earnings trajectory against the broader market's one-year forecast for expansion of 41% shows it's noticeably less attractive on an annualised basis.

With this information, we find it concerning that Zhewen Pictures Groupltd is trading at a P/E higher than the market. 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 earnings trends is likely to weigh heavily on the share price eventually.

The Bottom Line On Zhewen Pictures Groupltd's P/E

The large bounce in Zhewen Pictures Groupltd's shares has lifted the company's P/E to a fairly high level. Using the price-to-earnings 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 Zhewen Pictures Groupltd currently trades on a much higher than expected P/E since its recent three-year growth is lower than the wider market forecast. Right now we are increasingly uncomfortable with the high P/E as this earnings performance isn't likely to support such positive sentiment for long. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

Before you take the next step, you should know about the 2 warning signs for Zhewen Pictures Groupltd that we have uncovered.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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