Should We Worry About China Railway Signal & Communication Corporation Limited's (HKG:3969) P/E Ratio?

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This article is written for those who want to get better at using price to earnings ratios (P/E ratios). We'll show how you can use China Railway Signal & Communication Corporation Limited's (HKG:3969) P/E ratio to inform your assessment of the investment opportunity. China Railway Signal & Communication has a price to earnings ratio of 9.69, based on the last twelve months. That corresponds to an earnings yield of approximately 10.3%.

View our latest analysis for China Railway Signal & Communication

How Do You Calculate China Railway Signal & Communication's P/E Ratio?

The formula for P/E is:

Price to Earnings Ratio = Share Price (in reporting currency) ÷ Earnings per Share (EPS)

Or for China Railway Signal & Communication:

P/E of 9.69 = HK$3.97 (Note: this is the share price in the reporting currency, namely, CNY ) ÷ HK$0.41 (Based on the trailing twelve months to September 2019.)

Is A High Price-to-Earnings Ratio Good?

A higher P/E ratio means that buyers have to pay a higher price for each HK$1 the company has earned over the last year. That isn't a good or a bad thing on its own, but a high P/E means that buyers have a higher opinion of the business's prospects, relative to stocks with a lower P/E.

How Does China Railway Signal & Communication's P/E Ratio Compare To Its Peers?

The P/E ratio essentially measures market expectations of a company. You can see in the image below that the average P/E (9.3) for companies in the electronic industry is roughly the same as China Railway Signal & Communication's P/E.

SEHK:3969 Price Estimation Relative to Market, December 14th 2019
SEHK:3969 Price Estimation Relative to Market, December 14th 2019

Its P/E ratio suggests that China Railway Signal & Communication shareholders think that in the future it will perform about the same as other companies in its industry classification. If the company has better than average prospects, then the market might be underestimating it. Checking factors such as director buying and selling. could help you form your own view on if that will happen.

How Growth Rates Impact P/E Ratios

Probably the most important factor in determining what P/E a company trades on is the earnings growth. If earnings are growing quickly, then the 'E' in the equation will increase faster than it would otherwise. And in that case, the P/E ratio itself will drop rather quickly. Then, a lower P/E should attract more buyers, pushing the share price up.

Most would be impressed by China Railway Signal & Communication earnings growth of 16% in the last year. And earnings per share have improved by 7.1% annually, over the last five years. So one might expect an above average P/E ratio.