Prime Financial Group Limited's (ASX:PFG) price-to-earnings (or "P/E") ratio of 22.2x might make it look like a sell right now compared to the market in Australia, where around half of the companies have P/E ratios below 19x and even P/E's below 11x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

For instance, Prime Financial Group's receding earnings in recent times would have to be some food for thought. One possibility is that the P/E is high because investors think the company will still do enough to outperform the broader market in the near future. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

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Does Growth Match The High P/E?

The only time you'd be truly comfortable seeing a P/E as high as Prime Financial Group's is when the company's growth is on track to outshine the market.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 38%. As a result, earnings from three years ago have also fallen 34% overall. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

Weighing that medium-term earnings trajectory against the broader market's one-year forecast for expansion of 22% shows it's an unpleasant look.

With this information, we find it concerning that Prime Financial Group is trading at a P/E higher than the market. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. There's a very good chance existing shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the recent negative growth rates.

What We Can Learn From Prime Financial Group's P/E?

Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

We've established that Prime Financial Group currently trades on a much higher than expected P/E since its recent earnings have been in decline over the medium-term. Right now we are increasingly uncomfortable with the high P/E as this earnings performance is highly unlikely to support such positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

It is also worth noting that we have found 4 warning signs for Prime Financial Group that you need to take into consideration.

If these risks are making you reconsider your opinion on Prime Financial Group, explore our interactive list of high quality stocks to get an idea of what else is out there.

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.