ConocoPhillips' (NYSE:COP) price-to-earnings (or "P/E") ratio of 14x 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 17x 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.

With earnings that are retreating more than the market's of late, ConocoPhillips has been very sluggish. 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.

How Is ConocoPhillips' Growth Trending?

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

Retrospectively, the last year delivered a frustrating 38% 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. So it appears to us that the company has had a mixed result in terms 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 analysts following the company. Meanwhile, the rest of the market is forecast to expand by 11% per year, which is noticeably more attractive.

With this information, we can see why ConocoPhillips is trading at a P/E lower than the market. Apparently many shareholders weren't comfortable holding on while the company is potentially eyeing a less prosperous future.

The Key Takeaway

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 ConocoPhillips maintains its low P/E on the weakness of its forecast growth being lower than the wider market, 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.

You need to take note of risks, for example - ConocoPhillips has 3 warning signs (and 1 which is a bit unpleasant) we think you should know about.

Of course, you might also be able to find a better stock than ConocoPhillips. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.