With a price-to-earnings (or "P/E") ratio of 39.4x Mastercard Incorporated (NYSE:MA) may be sending very 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. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

Recent times have been advantageous for Mastercard as its earnings have been rising faster than most other companies. The P/E is probably high because investors think this strong earnings performance will continue. If not, then existing shareholders might be a little nervous about the viability of the share price.

Keen to find out how analysts think Mastercard's future stacks up against the industry? In that case, our free report is a great place to start.

Does Growth Match The High P/E?

In order to justify its P/E ratio, Mastercard 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 15% last year. Pleasingly, EPS has also lifted 65% in aggregate from three years ago, thanks to the last 12 months of growth. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Looking ahead now, EPS is anticipated to climb by 16% each year during the coming three years according to the analysts following the company. With the market only predicted to deliver 11% per year, the company is positioned for a stronger earnings result.

In light of this, it's understandable that Mastercard'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 Bottom Line On Mastercard's 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.

As we suspected, our examination of Mastercard's analyst forecasts revealed that its superior earnings outlook is contributing to its high P/E. Right now shareholders are comfortable with the P/E as they are quite confident future earnings aren't under threat. Unless these conditions change, they will continue to provide strong support to the share price.

You always need to take note of risks, for example - Mastercard has 1 warning sign we think you should be aware of.

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

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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.