When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") below 16x, you may consider PG&E Corporation (NYSE:PCG) as a stock to potentially avoid with its 20.8x P/E ratio. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's as high as it is.

With its earnings growth in positive territory compared to the declining earnings of most other companies, PG&E has been doing quite well of late. The P/E is probably high because investors think the company will continue to navigate the broader market headwinds better than most. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

View our latest analysis for PG&E

How Is PG&E's Growth Trending?

The only time you'd be truly comfortable seeing a P/E as high as PG&E's is when the company's growth is on track to outshine the market.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. Likewise, not much has changed from three years ago as earnings have been stuck during that whole time. So it seems apparent to us that the company has struggled to grow earnings meaningfully over that time.

Looking ahead now, EPS is anticipated to climb by 17% per year during the coming three years according to the eleven analysts following the company. With the market only predicted to deliver 13% each year, the company is positioned for a stronger earnings result.

In light of this, it's understandable that PG&E's P/E sits above the majority of other companies. It seems most investors are expecting this strong future growth and are willing to pay more for the stock.

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 PG&E 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. It's hard to see the share price falling strongly in the near future under these circumstances.

Before you settle on your opinion, we've discovered 3 warning signs for PG&E (1 can't be ignored!) that 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.