Thermon Group Holdings, Inc. (NYSE:THR) shares have continued their recent momentum with a 25% gain in the last month alone. Looking back a bit further, it's encouraging to see the stock is up 73% in the last year.

Following the firm bounce in price, Thermon Group Holdings may be sending bearish signals at the moment with its price-to-earnings (or "P/E") ratio of 26.2x, since almost half of all companies in the United States have P/E ratios under 19x and even P/E's lower than 11x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

Recent times have been advantageous for Thermon Group Holdings as its earnings have been rising faster than most other companies. It seems that many are expecting the strong earnings performance to persist, which has raised the P/E. If not, then existing shareholders might be a little nervous about the viability of the share price.

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

Does Growth Match The High P/E?

There's an inherent assumption that a company should outperform the market for P/E ratios like Thermon Group Holdings' to be considered reasonable.

If we review the last year of earnings growth, the company posted a terrific increase of 36%. Pleasingly, EPS has also lifted 60% 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.

Shifting to the future, estimates from the five analysts covering the company suggest earnings should grow by 6.8% per year over the next three years. With the market predicted to deliver 12% growth each year, the company is positioned for a weaker earnings result.

In light of this, it's alarming that Thermon Group Holdings' P/E sits above the majority of other companies. Apparently many investors in the company are way more bullish than analysts indicate and aren't willing to let go of their stock at any price. Only the boldest would assume these prices are sustainable as this level of earnings growth is likely to weigh heavily on the share price eventually.

The Key Takeaway

Thermon Group Holdings' P/E is getting right up there since its shares have risen strongly. 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 Thermon Group Holdings' analyst forecasts revealed that its inferior earnings outlook isn't impacting its high P/E anywhere near 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 high P/E lower. This places shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

Many other vital risk factors can be found on the company's balance sheet. Take a look at our free balance sheet analysis for Thermon Group Holdings with six simple checks on some of these key factors.

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.

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.