With a price-to-earnings (or "P/E") ratio of 9.5x Star Bulk Carriers Corp. (NASDAQ:SBLK) may be sending bullish signals at the moment, given that almost half of all companies in the United States have P/E ratios greater than 19x and even P/E's higher than 33x are not unusual. However, the P/E might be low for a reason and it requires further investigation to determine if it's justified.

There hasn't been much to differentiate Star Bulk Carriers' and the market's retreating earnings lately. It might be that many expect the company's earnings performance to degrade further, which has repressed the P/E. You'd much rather the company wasn't bleeding earnings if you still believe in the business. At the very least, you'd be hoping that earnings don't fall off a cliff if your plan is to pick up some stock while it's out of favour.

What Are Growth Metrics Telling Us About The Low P/E?

The only time you'd be truly comfortable seeing a P/E as low as Star Bulk Carriers' is when the company's growth is on track to lag the market.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. The longer-term trend has been no better as the company has no earnings growth to show for over the last three years either. Accordingly, shareholders probably wouldn't have been satisfied with the complete absence of medium-term growth.

Looking ahead now, EPS is anticipated to climb by 14% each year during the coming three years according to the six analysts following the company. With the market only predicted to deliver 10% each year, the company is positioned for a stronger earnings result.

With this information, we find it odd that Star Bulk Carriers is trading at a P/E lower than the market. It looks like most investors are not convinced at all that the company can achieve future growth expectations.

The Key Takeaway

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.

Our examination of Star Bulk Carriers' analyst forecasts revealed that its superior earnings outlook isn't contributing to its P/E anywhere near as much as we would have predicted. There could be some major unobserved threats to earnings preventing the P/E ratio from matching the positive outlook. It appears many are indeed anticipating earnings instability, because these conditions should normally provide a boost to the share price.

And what about other risks? Every company has them, and we've spotted 3 warning signs for Star Bulk Carriers you should know about.

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.

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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.