Those holding SU Group Holdings Limited (NASDAQ:SUGP) shares would be relieved that the share price has rebounded 29% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Still, the 30-day jump doesn't change the fact that longer term shareholders have seen their stock decimated by the 65% share price drop in the last twelve months.

Although its price has surged higher, SU Group Holdings may still be sending bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 9.8x, since almost half of all companies in the United States have P/E ratios greater than 18x and even P/E's higher than 32x are not unusual. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's limited.

It looks like earnings growth has deserted SU Group Holdings recently, which is not something to boast about. One possibility is that the P/E is low because investors think this benign earnings growth rate will likely underperform the broader market in the near future. If not, then existing shareholders may be feeling optimistic about the future direction of the share price.

View our latest analysis for SU Group Holdings

Want the full picture on earnings, revenue and cash flow for the company? Then our free report on SU Group Holdings will help you shine a light on its historical performance.

Does Growth Match The Low P/E?

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

Retrospectively, the last year delivered virtually the same number to the company's bottom line as the year before. Still, the latest three year period has seen an excellent 59% overall rise in EPS, in spite of its uninspiring short-term performance. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Weighing that recent medium-term earnings trajectory against the broader market's one-year forecast for expansion of 14% shows it's noticeably more attractive on an annualised basis.

With this information, we find it odd that SU Group Holdings is trading at a P/E lower than the market. It looks like most investors are not convinced the company can maintain its recent growth rates.

The Final Word

Despite SU Group Holdings' shares building up a head of steam, its P/E still lags most other companies. 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 SU Group Holdings revealed its three-year earnings trends aren't contributing to its P/E anywhere near as much as we would have predicted, given they look better than current market expectations. There could be some major unobserved threats to earnings preventing the P/E ratio from matching this positive performance. It appears many are indeed anticipating earnings instability, because the persistence of these recent medium-term conditions would normally provide a boost to the share price.

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

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.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.