The Powell Industries, Inc. (NASDAQ:POWL) share price has softened a substantial 26% over the previous 30 days, handing back much of the gains the stock has made lately. The good news is that in the last year, the stock has shone bright like a diamond, gaining 183%.

In spite of the heavy fall in price, there still wouldn't be many who think Powell Industries' price-to-earnings (or "P/E") ratio of 20.7x is worth a mention when the median P/E in the United States is similar at about 19x. 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 advantageous for Powell Industries as its earnings have been rising faster than most other companies. One possibility is that the P/E is moderate because investors think this strong earnings performance might be about to tail off. 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.

Want the full picture on analyst estimates for the company? Then our free report on Powell Industries will help you uncover what's on the horizon.

Is There Some Growth For Powell Industries?

In order to justify its P/E ratio, Powell Industries would need to produce growth that's similar to the market.

If we review the last year of earnings growth, the company posted a terrific increase of 172%. The latest three year period has also seen an excellent 23,029% overall rise in EPS, aided by its short-term performance. So we can start by confirming that the company has done a great job of growing earnings over that time.

Shifting to the future, estimates from the two analysts covering the company suggest earnings should grow by 9.7% over the next year. That's shaping up to be materially lower than the 15% growth forecast for the broader market.

In light of this, it's curious that Powell Industries' P/E sits in line with the majority of other companies. Apparently many investors in the company are less bearish than analysts indicate and aren't willing to let go of their stock right now. These shareholders may be setting themselves up for future disappointment if the P/E falls to levels more in line with the growth outlook.

The Key Takeaway

Following Powell Industries' share price tumble, its P/E is now hanging on to the median market 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.

Our examination of Powell Industries' analyst forecasts revealed that its inferior earnings outlook isn't impacting its P/E as much as we would have predicted. When we see a weak earnings outlook with slower than market growth, we suspect the share price is at risk of declining, sending the moderate P/E lower. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Before you take the next step, you should know about the 3 warning signs for Powell Industries (1 is significant!) that we have uncovered.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on 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.