There wouldn't be many who think International Game Technology PLC's (NYSE:IGT) price-to-earnings (or "P/E") ratio of 19.2x is worth a mention when the median P/E in the United States is similar at about 18x. While this might not raise any eyebrows, if the P/E ratio is not justified investors could be missing out on a potential opportunity or ignoring looming disappointment.

With earnings that are retreating more than the market's of late, International Game Technology has been very sluggish. One possibility is that the P/E is moderate because investors think the company's earnings trend will eventually fall in line with most others in the market. 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 it doesn't keep underperforming if your plan is to pick up some stock while it's not in favour.

What Are Growth Metrics Telling Us About The P/E?

International Game Technology'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, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 18%. This has erased any of its gains during the last three years, with practically no change in EPS being achieved in total. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Looking ahead now, EPS is anticipated to climb by 22% each year during the coming three years according to the seven analysts following the company. That's shaping up to be materially higher than the 10% each year growth forecast for the broader market.

In light of this, it's curious that International Game Technology's P/E sits in line with the majority of other companies. Apparently some shareholders are skeptical of the forecasts and have been accepting lower selling prices.

What We Can Learn From International Game Technology'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 International Game Technology currently trades on a lower than expected P/E since its forecast growth is higher than the wider market. There could be some unobserved threats to earnings preventing the P/E ratio from matching the positive outlook. At least the risk of a price drop looks to be subdued, but investors seem to think future earnings could see some volatility.

And what about other risks? Every company has them, and we've spotted 2 warning signs for International Game Technology you should know about.

If you're unsure about the strength of International Game Technology's business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.