Tianneng Battery Group Co., Ltd.'s (SHSE:688819) price-to-earnings (or "P/E") ratio of 10.7x might make it look like a strong buy right now compared to the market in China, where around half of the companies have P/E ratios above 27x and even P/E's above 51x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so limited.

With its earnings growth in positive territory compared to the declining earnings of most other companies, Tianneng Battery Group has been doing quite well of late. It might be that many expect the strong earnings performance to degrade substantially, possibly more than the market, which has repressed the P/E. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

Does Growth Match The Low P/E?

The only time you'd be truly comfortable seeing a P/E as depressed as Tianneng Battery Group's is when the company's growth is on track to lag the market decidedly.

If we review the last year of earnings growth, the company posted a worthy increase of 13%. Although, the latest three year period in total hasn't been as good as it didn't manage to provide any growth at all. So it appears to us that the company has had a mixed result in terms of growing earnings over that time.

Shifting to the future, estimates from the two analysts covering the company suggest earnings should grow by 13% per year over the next three years. With the market predicted to deliver 20% growth each year, the company is positioned for a weaker earnings result.

In light of this, it's understandable that Tianneng Battery Group's P/E sits below the majority of other companies. Apparently many shareholders weren't comfortable holding on while the company is potentially eyeing a less prosperous future.

The Final Word

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.

As we suspected, our examination of Tianneng Battery Group's analyst forecasts revealed that its inferior earnings outlook is contributing to its low P/E. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. It's hard to see the share price rising strongly in the near future under these circumstances.

Before you take the next step, you should know about the 2 warning signs for Tianneng Battery Group (1 shouldn't be ignored!) that we have uncovered.

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

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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.