Oppenheimer Holdings Inc.'s (NYSE:OPY) price-to-earnings (or "P/E") ratio of 7.8x might make it look like a strong buy right now compared to the market in the United States, where around half of the companies have P/E ratios above 18x and even P/E's above 34x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly reduced P/E.

With earnings growth that's exceedingly strong of late, Oppenheimer Holdings has been doing very well. It might be that many expect the strong earnings performance to degrade substantially, which has repressed the P/E. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

Although there are no analyst estimates available for Oppenheimer Holdings, take a look at this free data-rich visualisation to see how the company stacks up on earnings, revenue and cash flow.

Does Growth Match The Low P/E?

The only time you'd be truly comfortable seeing a P/E as depressed as Oppenheimer Holdings' is when the company's growth is on track to lag the market decidedly.

If we review the last year of earnings growth, the company posted a terrific increase of 83%. However, this wasn't enough as the latest three year period has seen a very unpleasant 51% drop in EPS in aggregate. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

In contrast to the company, the rest of the market is expected to grow by 15% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

In light of this, it's understandable that Oppenheimer Holdings' P/E would sit below the majority of other companies. However, we think shrinking earnings are unlikely to lead to a stable P/E over the longer term, which could set up shareholders for future disappointment. Even just maintaining these prices could be difficult to achieve as recent earnings trends are already weighing down the shares.

What We Can Learn From Oppenheimer Holdings' P/E?

It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

As we suspected, our examination of Oppenheimer Holdings revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

There are also other vital risk factors to consider and we've discovered 3 warning signs for Oppenheimer Holdings (2 are significant!) that you should be aware of before investing here.

If you're unsure about the strength of Oppenheimer Holdings' 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.