With a price-to-earnings (or "P/E") ratio of 23x CSG Systems International, Inc. (NASDAQ:CSGS) may be sending bearish signals at the moment, given that almost half of all companies in the United States have P/E ratios under 19x and even P/E's lower than 11x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

CSG Systems International could be doing better as its earnings have been going backwards lately while most other companies have been seeing positive earnings growth. One possibility is that the P/E is high because investors think this poor earnings performance will turn the corner. If not, then existing shareholders may be extremely nervous about the viability of the share price.

Want the full picture on analyst estimates for the company? Then our free report on CSG Systems International will help you uncover what's on the horizon.

How Is CSG Systems International's Growth Trending?

The only time you'd be truly comfortable seeing a P/E as high as CSG Systems International's is when the company's growth is on track to outshine the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 5.9%. That put a dampener on the good run it was having over the longer-term as its three-year EPS growth is still a noteworthy 8.8% in total. Accordingly, while they would have preferred to keep the run going, shareholders would be roughly satisfied with the medium-term rates of earnings growth.

Looking ahead now, EPS is anticipated to climb by 20% per year during the coming three years according to the nine analysts following the company. That's shaping up to be materially higher than the 11% per year growth forecast for the broader market.

In light of this, it's understandable that CSG Systems International's P/E sits above the majority of other companies. It seems most investors are expecting this strong future growth and are willing to pay more for the stock.

The Final Word

While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that CSG Systems International maintains its high P/E on the strength of its forecast growth being higher than the wider market, as expected. Right now shareholders are comfortable with the P/E as they are quite confident future earnings aren't under threat. It's hard to see the share price falling strongly in the near future under these circumstances.

Before you settle on your opinion, we've discovered 1 warning sign for CSG Systems International 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 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.