Singapore Post Limited's (SGX:S08) price-to-earnings (or "P/E") ratio of 28.8x might make it look like a strong sell right now compared to the market in Singapore, where around half of the companies have P/E ratios below 11x and even P/E's below 7x 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 so lofty.

Singapore Post certainly has been doing a good job lately as its earnings growth has been positive while most other companies have been seeing their earnings go backwards. It seems that many are expecting the company to continue defying the broader market adversity, which has increased investors' willingness to pay up for the stock. If not, then existing shareholders might be a little nervous about the viability of the share price.

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Is There Enough Growth For Singapore Post?

In order to justify its P/E ratio, Singapore Post would need to produce outstanding growth well in excess of the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 32% last year. However, this wasn't enough as the latest three year period has seen a very unpleasant 35% drop in EPS in aggregate. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

Shifting to the future, estimates from the dual analysts covering the company suggest earnings should grow by 36% per annum over the next three years. With the market only predicted to deliver 8.6% per annum, the company is positioned for a stronger earnings result.

In light of this, it's understandable that Singapore Post's P/E sits above the majority of other companies. Apparently shareholders aren't keen to offload something that is potentially eyeing a more prosperous future.

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.

As we suspected, our examination of Singapore Post's analyst forecasts revealed that its superior earnings outlook is contributing to its high P/E. At this stage investors feel the potential for a deterioration in earnings isn't great enough to justify a lower P/E ratio. It's hard to see the share price falling strongly in the near future under these circumstances.

Having said that, be aware Singapore Post is showing 1 warning sign in our investment analysis, you should know about.

Of course, you might also be able to find a better stock than Singapore Post. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.