BHCC Holding Limited (HKG:1552) shares have had a horrible month, losing 26% after a relatively good period beforehand. The last month has meant the stock is now only up 6.4% during the last year.

Even after such a large drop in price, BHCC Holding's price-to-earnings (or "P/E") ratio of 5.4x might still make it look like a buy right now compared to the market in Hong Kong, where around half of the companies have P/E ratios above 10x and even P/E's above 20x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/E.

For instance, BHCC Holding's receding earnings in recent times would have to be some food for thought. It might be that many expect the disappointing earnings performance to continue or accelerate, which has repressed the P/E. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

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 BHCC Holding's is when the company's growth is on track to lag the market.

Retrospectively, the last year delivered a frustrating 55% decrease to the company's bottom line. This means it has also seen a slide in earnings over the longer-term as EPS is down 14% in total over the last three years. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

In contrast to the company, the rest of the market is expected to grow by 23% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

With this information, we are not surprised that BHCC Holding is trading at a P/E lower than the market. 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. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

The Bottom Line On BHCC Holding's P/E

BHCC Holding's P/E has taken a tumble along with its share price. We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

As we suspected, our examination of BHCC Holding revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 5 warning signs with BHCC Holding (at least 2 which don't sit too well with us), and understanding these should be part of your investment process.

You might be able to find a better investment than BHCC Holding. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.