Watts International Maritime Company Limited (HKG:2258) shares have had a really impressive month, gaining 90% after a shaky period beforehand. Notwithstanding the latest gain, the annual share price return of 5.7% isn't as impressive.

In spite of the firm bounce in price, it's still not a stretch to say that Watts International Maritime's price-to-earnings (or "P/E") ratio of 8.5x right now seems quite "middle-of-the-road" compared to the market in Hong Kong, where the median P/E ratio is around 9x. Although, it's not wise to simply ignore the P/E without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

It looks like earnings growth has deserted Watts International Maritime recently, which is not something to boast about. It might be that many expect the uninspiring earnings performance to only match most other companies at best over the coming period, which has kept the P/E from rising. 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 not quite in favour.

Check out our latest analysis for Watts International Maritime

How Is Watts International Maritime's Growth Trending?

In order to justify its P/E ratio, Watts International Maritime would need to produce growth that's similar to the market.

Retrospectively, the last year delivered virtually the same number to the company's bottom line as the year before. This isn't what shareholders were looking for as it means they've been left with a 72% decline in EPS over the last three years in total. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

Comparing that to the market, which is predicted to deliver 15% growth in the next 12 months, the company's downward momentum based on recent medium-term earnings results is a sobering picture.

In light of this, it's somewhat alarming that Watts International Maritime'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. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh on the share price eventually.

The Bottom Line On Watts International Maritime's P/E

Its shares have lifted substantially and now Watts International Maritime's P/E is also back up to the market median. While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that Watts International Maritime currently trades on a higher than expected P/E since its recent earnings have been in decline over the medium-term. When we see earnings heading backwards and underperforming the market forecasts, we suspect the share price is at risk of declining, sending the moderate P/E lower. Unless the recent medium-term conditions improve, it's challenging to accept these prices as being reasonable.

It is also worth noting that we have found 3 warning signs for Watts International Maritime (2 can't be ignored!) that you need to take into consideration.

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 P/E ratio below 20x).

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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.