Greif, Inc.'s (NYSE:GEF) price-to-earnings (or "P/E") ratio of 8.9x 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 18x and even P/E's above 32x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/E.

Greif has been struggling lately as its earnings have declined faster than most other companies. It seems that many are expecting the dismal earnings performance to persist, which has repressed the P/E. If you still like the company, you'd want its earnings trajectory to turn around before making any decisions. If not, then existing shareholders will probably struggle to get excited about the future direction of the share price.

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Greif.

Does Growth Match The Low P/E?

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

Retrospectively, the last year delivered a frustrating 25% decrease to the company's bottom line. However, a few very strong years before that means that it was still able to grow EPS by an impressive 246% in total over the last three years. Accordingly, while they would have preferred to keep the run going, shareholders would probably welcome the medium-term rates of earnings growth.

Shifting to the future, estimates from the five analysts covering the company suggest earnings growth is heading into negative territory, declining 9.8% per year over the next three years. With the market predicted to deliver 10% growth per year, that's a disappointing outcome.

In light of this, it's understandable that Greif's 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. Even just maintaining these prices could be difficult to achieve as the weak outlook is weighing down the shares.

What We Can Learn From Greif's P/E?

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 Greif maintains its low P/E on the weakness of its forecast for sliding earnings, as expected. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

Plus, you should also learn about these 3 warning signs we've spotted with Greif (including 1 which is a bit concerning).

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.