COSCO SHIPPING Development Co., Ltd. (HKG:2866) shares have had a really impressive month, gaining 39% after a shaky period beforehand. The last 30 days bring the annual gain to a very sharp 40%.

Even after such a large jump in price, there still wouldn't be many who think COSCO SHIPPING Development's price-to-earnings (or "P/E") ratio of 12x is worth a mention when the median P/E in Hong Kong is similar at about 11x. While this might not raise any eyebrows, if the P/E ratio is not justified investors could be missing out on a potential opportunity or ignoring looming disappointment.

For example, consider that COSCO SHIPPING Development's financial performance has been poor lately as its earnings have been in decline. It might be that many expect the company to put the disappointing earnings performance behind them over the coming period, which has kept the P/E from falling. If not, then existing shareholders may be a little nervous about the viability of the share price.

Is There Some Growth For COSCO SHIPPING Development?

In order to justify its P/E ratio, COSCO SHIPPING Development would need to produce growth that's similar to the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 48%. The last three years don't look nice either as the company has shrunk EPS by 74% in aggregate. Therefore, it's fair to say the earnings growth recently has been undesirable for the company.

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

In light of this, it's somewhat alarming that COSCO SHIPPING Development's P/E sits in line with the majority of other companies. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. There's a 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.

The Bottom Line On COSCO SHIPPING Development's P/E

COSCO SHIPPING Development's stock has a lot of momentum behind it lately, which has brought its P/E level with the market. Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

We've established that COSCO SHIPPING Development currently trades on a higher than expected P/E since its recent earnings have been in decline over the medium-term. Right now we are uncomfortable with the P/E as this earnings performance is unlikely to support a more positive sentiment for long. Unless the recent medium-term conditions improve, it's challenging to accept these prices as being reasonable.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 4 warning signs with COSCO SHIPPING Development (at least 1 which is concerning), and understanding them should be part of your investment process.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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