With a median price-to-earnings (or "P/E") ratio of close to 18x in the United States, you could be forgiven for feeling indifferent about Masco Corporation's (NYSE:MAS) P/E ratio of 19.3x. 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.

Masco 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. One possibility is that the P/E is moderate because investors think the company's earnings will be less resilient moving forward. If not, then existing shareholders have reason to be feeling optimistic about the future direction of the share price.

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

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

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

Retrospectively, the last year delivered an exceptional 16% gain to the company's bottom line. Pleasingly, EPS has also lifted 109% in aggregate from three years ago, thanks to the last 12 months of growth. Accordingly, shareholders would have probably welcomed those medium-term rates of earnings growth.

Looking ahead now, EPS is anticipated to climb by 8.6% per annum during the coming three years according to the analysts following the company. That's shaping up to be similar to the 10% each year growth forecast for the broader market.

In light of this, it's understandable that Masco's P/E sits in line with the majority of other companies. Apparently shareholders are comfortable to simply hold on while the company is keeping a low profile.

What We Can Learn From Masco's P/E?

We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

As we suspected, our examination of Masco's analyst forecasts revealed that its market-matching earnings outlook is contributing to its current P/E. At this stage investors feel the potential for an improvement or deterioration in earnings isn't great enough to justify a high or low P/E ratio. Unless these conditions change, they will continue to support the share price at these levels.

You always need to take note of risks, for example - Masco has 1 warning sign we think you should be aware of.

If you're unsure about the strength of Masco'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.