Southwest Securities Co., Ltd.'s (SHSE:600369) price-to-earnings (or "P/E") ratio of 41.6x 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 34x and even P/E's below 20x are quite common. However, the P/E might be high for a reason and it requires further investigation to determine if it's justified.

Recent times have been quite advantageous for Southwest Securities as its earnings have been rising very briskly. The P/E is probably high because investors think this strong earnings growth will be enough to outperform the broader market in the near future. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

See our latest analysis for Southwest Securities

Does Growth Match The High P/E?

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

Retrospectively, the last year delivered an exceptional 151% gain to the company's bottom line. Still, incredibly EPS has fallen 48% in total from three years ago, which is quite disappointing. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

In contrast to the company, the rest of the market is expected to grow by 44% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

In light of this, it's alarming that Southwest 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.

The Final Word

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.

Our examination of Southwest Securities revealed its shrinking earnings over the medium-term aren't impacting its high P/E anywhere near as much as we would have predicted, given the market is set to grow. Right now we are increasingly uncomfortable with the high P/E as this earnings performance is highly unlikely to support such positive sentiment for long. If recent medium-term earnings 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 1 warning sign for Southwest Securities that you should be aware of.

If you're unsure about the strength of Southwest Securities' business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
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.