With a price-to-earnings (or "P/E") ratio of 8.6x Group 1 Automotive, Inc. (NYSE:GPI) may be sending very bullish signals at the moment, given that almost half of all companies in the United States have P/E ratios greater than 18x and even P/E's higher than 33x are not unusual. 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.

Recent times haven't been advantageous for Group 1 Automotive as its earnings have been falling quicker than most other companies. It seems that many are expecting the dismal earnings performance to persist, which has repressed the P/E. You'd much rather the company wasn't bleeding earnings if you still believe in the business. Or at the very least, you'd be hoping the earnings slide doesn't get any worse if your plan is to pick up some stock while it's out of favour.

Keen to find out how analysts think Group 1 Automotive's future stacks up against the industry? In that case, our free report is a great place to start.

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

In order to justify its P/E ratio, Group 1 Automotive would need to produce anemic growth that's substantially trailing the market.

Retrospectively, the last year delivered a frustrating 13% decrease to the company's bottom line. Even so, admirably EPS has lifted 45% in aggregate from three years ago, notwithstanding the last 12 months. So we can start by confirming that the company has generally done a very good job of growing earnings over that time, even though it had some hiccups along the way.

Turning to the outlook, the next three years should generate growth of 6.1% per year as estimated by the seven analysts watching the company. That's shaping up to be materially lower than the 10% per year growth forecast for the broader market.

In light of this, it's understandable that Group 1 Automotive'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 Key Takeaway

Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

As we suspected, our examination of Group 1 Automotive's analyst forecasts revealed that its inferior earnings outlook is contributing to its low P/E. 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 Group 1 Automotive is showing 2 warning signs in our investment analysis, and 1 of those can't be ignored.

If these risks are making you reconsider your opinion on Group 1 Automotive, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.