Frontline plc's (NYSE:FRO) price-to-earnings (or "P/E") ratio of 7.8x 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 17x and even P/E's above 32x 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 limited.

Frontline 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. One possibility is that the P/E is low because investors think the company's earnings are going to fall away like everyone else's soon. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

What Are Growth Metrics Telling Us About The Low P/E?

The only time you'd be truly comfortable seeing a P/E as depressed as Frontline's is when the company's growth is on track to lag the market decidedly.

Taking a look back first, we see that the company grew earnings per share by an impressive 33% last year. The latest three year period has also seen an excellent 40% overall rise in EPS, aided by its short-term performance. So we can start by confirming that the company has done a great job of growing earnings over that time.

Looking ahead now, EPS is anticipated to climb by 2.7% per annum during the coming three years according to the eight analysts following the company. That's shaping up to be materially lower than the 11% each year growth forecast for the broader market.

In light of this, it's understandable that Frontline's P/E sits below the majority of other companies. It seems most investors are expecting to see limited future growth and are only willing to pay a reduced amount for the stock.

The Final Word

It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

We've established that Frontline 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. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

Having said that, be aware Frontline is showing 3 warning signs in our investment analysis, and 1 of those doesn't sit too well with us.

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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