Shanxi Securities Co., Ltd.'s (SZSE:002500) price-to-earnings (or "P/E") ratio of 33.7x 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 27x and even P/E's below 16x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's as high as it is.

For example, consider that Shanxi Securities' financial performance has been poor lately as its earnings have 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/E from collapsing. If not, then existing shareholders may be quite nervous about the viability of the share price.

How Is Shanxi Securities' Growth Trending?

There's an inherent assumption that a company should outperform the market for P/E ratios like Shanxi Securities' to be considered reasonable.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 31%. The last three years don't look nice either as the company has shrunk EPS by 25% in aggregate. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

Weighing that medium-term earnings trajectory against the broader market's one-year forecast for expansion of 36% shows it's an unpleasant look.

In light of this, it's alarming that Shanxi Securities' P/E sits above the majority of other companies. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. There's a very good chance existing shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the recent negative growth rates.

What We Can Learn From Shanxi Securities' P/E?

We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We've established that Shanxi Securities currently trades on a much higher than expected P/E since its recent earnings have been in decline over the medium-term. When we see earnings heading backwards and underperforming the market forecasts, we suspect the share price is at risk of declining, sending the high P/E lower. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

It is also worth noting that we have found 1 warning sign for Shanxi Securities that you need to take into consideration.

It's important to make sure you look for a great company, not just the first idea you come across. So 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.