With a price-to-earnings (or "P/E") ratio of 24.1x StarPower Semiconductor Ltd. (SHSE:603290) may be sending bullish signals at the moment, given that almost half of all companies in China have P/E ratios greater than 30x and even P/E's higher than 55x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/E.

While the market has experienced earnings growth lately, StarPower Semiconductor's earnings have gone into reverse gear, which is not great. The P/E is probably low because investors think this poor earnings performance isn't going to get any better. If this is the case, then existing shareholders will probably struggle to get excited about the future direction of the share price.

What Are Growth Metrics Telling Us About The Low P/E?

StarPower Semiconductor's P/E ratio would be typical for a company that's only expected to deliver limited growth, and importantly, perform worse than the market.

Taking a look back first, we see that there was hardly any earnings per share growth to speak of for the company over the past year. Although pleasingly EPS has lifted 254% in aggregate from three years ago, notwithstanding the last 12 months. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Looking ahead now, EPS is anticipated to climb by 29% per annum during the coming three years according to the analysts following the company. That's shaping up to be materially higher than the 25% per annum growth forecast for the broader market.

With this information, we find it odd that StarPower Semiconductor is trading at a P/E lower than the market. It looks like most investors are not convinced at all that the company can achieve future growth expectations.

What We Can Learn From StarPower Semiconductor's P/E?

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.

Our examination of StarPower Semiconductor's analyst forecasts revealed that its superior earnings outlook isn't contributing to its P/E anywhere near as much as we would have predicted. There could be some major unobserved threats to earnings preventing the P/E ratio from matching the positive outlook. It appears many are indeed anticipating earnings instability, because these conditions should normally provide a boost to the share price.

There are also other vital risk factors to consider and we've discovered 2 warning signs for StarPower Semiconductor (1 doesn't sit too well with us!) that you should be aware of before investing here.

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 low P/E).

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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.

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