It's not a stretch to say that Duke Energy Corporation's (NYSE:DUK) price-to-earnings (or "P/E") ratio of 17.4x right now seems quite "middle-of-the-road" compared to the market in the United States, where the median P/E ratio is around 17x. Although, it's not wise to simply ignore the P/E without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

Recent times have been pleasing for Duke Energy as its earnings have risen in spite of the market's earnings going into reverse. It might be that many expect the strong earnings performance to deteriorate like the rest, which has kept the P/E from rising. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's not quite in favour.

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

Does Growth Match The P/E?

Duke Energy's P/E ratio would be typical for a company that's only expected to deliver moderate growth, and importantly, perform in line with the market.

Taking a look back first, we see that the company managed to grow earnings per share by a handy 11% last year. This was backed up an excellent period prior to see EPS up by 213% in total over the last three years. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Shifting to the future, estimates from the analysts covering the company suggest earnings should grow by 7.8% each year over the next three years. With the market predicted to deliver 10% growth per year, the company is positioned for a weaker earnings result.

In light of this, it's curious that Duke Energy's P/E sits in line with the majority of other companies. It seems most investors are ignoring the fairly limited growth expectations and are willing to pay up for exposure to the stock. Maintaining these prices will be difficult to achieve as this level of earnings growth is likely to weigh down the shares eventually.

The Bottom Line On Duke Energy's P/E

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.

We've established that Duke Energy currently trades on a higher than expected P/E since its forecast growth is lower than the wider market. Right now we are uncomfortable with the P/E as the predicted future earnings aren't likely to support a more positive sentiment for long. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

There are also other vital risk factors to consider and we've discovered 2 warning signs for Duke Energy (1 can't be ignored!) that you should be aware of before investing here.

You might be able to find a better investment than Duke Energy. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.