Senba Sensing Technology Co.,Ltd. (SZSE:300701) shareholders won't be pleased to see that the share price has had a very rough month, dropping 26% and undoing the prior period's positive performance. The recent drop has obliterated the annual return, with the share price now down 3.4% over that longer period.

In spite of the heavy fall in price, given close to half the companies in China have price-to-earnings ratios (or "P/E's") below 30x, you may still consider Senba Sensing TechnologyLtd as a stock to avoid entirely with its 48.3x P/E ratio. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

For example, consider that Senba Sensing TechnologyLtd's financial performance has been poor lately as its earnings have been in decline. One possibility is that the P/E is high because investors think the company will still do enough to outperform the broader market in the near future. If not, then existing shareholders may be quite nervous about the viability of the share price.

See our latest analysis for Senba Sensing TechnologyLtd

Is There Enough Growth For Senba Sensing TechnologyLtd?

In order to justify its P/E ratio, Senba Sensing TechnologyLtd would need to produce outstanding growth well in excess of the market.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 25%. This means it has also seen a slide in earnings over the longer-term as EPS is down 66% in total over the last three years. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

In contrast to the company, the rest of the market is expected to grow by 42% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

In light of this, it's alarming that Senba Sensing TechnologyLtd's P/E sits above 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 very 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 Key Takeaway

Senba Sensing TechnologyLtd's shares may have retreated, but its P/E is still flying high. It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

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

Don't forget that there may be other risks. For instance, we've identified 3 warning signs for Senba Sensing TechnologyLtd (1 can't be ignored) you should be aware of.

Of course, you might also be able to find a better stock than Senba Sensing TechnologyLtd. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.