Maximus, Inc.'s (NYSE:MMS) price-to-earnings (or "P/E") ratio of 13.8x might make it look like a buy right now compared to the market in the United States, where around half of the companies have P/E ratios above 19x and even P/E's above 34x are quite common. However, the P/E might be low for a reason and it requires further investigation to determine if it's justified.

Maximus certainly has been doing a good job lately as it's been growing earnings more than most other companies. It might be that many expect the strong earnings performance to degrade substantially, which has repressed the P/E. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

Does Growth Match The Low P/E?

In order to justify its P/E ratio, Maximus would need to produce sluggish growth that's trailing the market.

If we review the last year of earnings growth, the company posted a terrific increase of 90%. The latest three year period has also seen a 8.5% overall rise in EPS, aided extensively by its short-term performance. Accordingly, shareholders would have probably been satisfied with the medium-term rates of earnings growth.

Looking ahead now, EPS is anticipated to slump, contracting by 5.2% during the coming year according to the dual analysts following the company. Meanwhile, the broader market is forecast to expand by 15%, which paints a poor picture.

In light of this, it's understandable that Maximus' P/E would sit below the majority of other companies. However, shrinking earnings are unlikely to lead to a stable P/E over the longer term. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

The Key Takeaway

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 Maximus maintains its low P/E on the weakness of its forecast for sliding earnings, as expected. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

Before you take the next step, you should know about the 1 warning sign for Maximus that we have uncovered.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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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.