When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") below 17x, you may consider PPL Corporation (NYSE:PPL) as a stock to avoid entirely with its 28.2x P/E ratio. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

PPL 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. It seems that many are expecting the company to continue defying the broader market adversity, which has increased investors' willingness to pay up for the stock. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

How Is PPL's Growth Trending?

There's an inherent assumption that a company should far outperform the market for P/E ratios like PPL's to be considered reasonable.

Taking a look back first, we see that the company grew earnings per share by an impressive 17% last year. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. 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 21% each year during the coming three years according to the ten analysts following the company. With the market only predicted to deliver 10% per year, the company is positioned for a stronger earnings result.

With this information, we can see why PPL is trading at such a high P/E compared to the market. Apparently shareholders aren't keen to offload something that is potentially eyeing a more prosperous future.

The Key Takeaway

Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

We've established that PPL maintains its high P/E on the strength of its forecast growth being higher than the wider market, as expected. Right now shareholders are comfortable with the P/E as they are quite confident future earnings aren't under threat. Unless these conditions change, they will continue to provide strong support to the share price.

Don't forget that there may be other risks. For instance, we've identified 3 warning signs for PPL (1 makes us a bit uncomfortable) you should be aware of.

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.