Griffon Corporation (NYSE:GFF) shareholders have had their patience rewarded with a 32% share price jump in the last month. Looking back a bit further, it's encouraging to see the stock is up 75% in the last year.

Although its price has surged higher, you could still be forgiven for feeling indifferent about Griffon's P/E ratio of 19.2x, since the median price-to-earnings (or "P/E") ratio in the United States is also close to 20x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/E.

With earnings growth that's superior to most other companies of late, Griffon has been doing relatively well. It might be that many expect the strong earnings performance to wane, which has kept the P/E from rising. 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 Griffon.

How Is Griffon's Growth Trending?

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

Taking a look back first, we see that the company grew earnings per share by an impressive 196% last year. The latest three year period has also seen an excellent 217% overall rise in EPS, aided by its short-term performance. Accordingly, shareholders would have probably welcomed those medium-term rates of earnings growth.

Turning to the outlook, the next year should generate growth of 24% as estimated by the five analysts watching the company. That's shaping up to be materially higher than the 15% growth forecast for the broader market.

In light of this, it's curious that Griffon's P/E sits in line with the majority of other companies. It may be that most investors aren't convinced the company can achieve future growth expectations.

The Final Word

Its shares have lifted substantially and now Griffon's P/E is also back up to the market median. 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.

Our examination of Griffon's analyst forecasts revealed that its superior earnings outlook isn't contributing to its P/E as much as we would have predicted. 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.

You always need to take note of risks, for example - Griffon has 2 warning signs we think you should be aware of.

You might be able to find a better investment than Griffon. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.