Liberty Energy Inc.'s (NYSE:LBRT) price-to-earnings (or "P/E") ratio of 8.4x might make it look like a strong buy right now compared to the market in the United States, where around half of the companies have P/E ratios above 20x and even P/E's above 36x are quite common. However, the P/E might be quite low for a reason and it requires further investigation to determine if it's justified.

Liberty Energy could be doing better as its earnings have been going backwards lately while most other companies have been seeing positive earnings growth. The P/E is probably low because investors think this poor earnings performance isn't going to get any better. If you still like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

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

Is There Any Growth For Liberty Energy?

In order to justify its P/E ratio, Liberty Energy would need to produce anemic growth that's substantially trailing the market.

Retrospectively, the last year delivered a frustrating 39% decrease to the company's bottom line. At least EPS has managed not to go completely backwards from three years ago in aggregate, thanks to the earlier period of growth. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Shifting to the future, estimates from the analysts covering the company suggest earnings should grow by 2.1% per year over the next three years. With the market predicted to deliver 11% growth per year, the company is positioned for a weaker earnings result.

With this information, we can see why Liberty Energy is trading at a P/E lower than the market. It seems most investors are expecting to see limited future growth and are only willing to pay a reduced amount for the stock.

The Bottom Line On Liberty Energy's P/E

Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

We've established that Liberty Energy maintains its low P/E on the weakness of its forecast growth being lower than the wider market, 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. It's hard to see the share price rising strongly in the near future under these circumstances.

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

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.