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# Here's How P/E Ratios Can Help Us Understand CEI Limited (SGX:AVV)

This article is written for those who want to get better at using price to earnings ratios (P/E ratios). We'll apply a basic P/E ratio analysis to CEI Limited's (SGX:AVV), to help you decide if the stock is worth further research. Based on the last twelve months, CEI's P/E ratio is 11.04. In other words, at today's prices, investors are paying SGD11.04 for every SGD1 in prior year profit.

View our latest analysis for CEI

### How Do I Calculate A Price To Earnings Ratio?

The formula for P/E is:

Price to Earnings Ratio = Price per Share Ã· Earnings per Share (EPS)

Or for CEI:

P/E of 11.04 = SGD0.95 Ã· SGD0.09 (Based on the trailing twelve months to June 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 SGD1 the company has earned over the last year. All else being equal, it's better to pay a low price -- but as Warren Buffett said, 'It's far better to buy a wonderful company at a fair price than a fair company at a wonderful price.

### Does CEI Have A Relatively High Or Low P/E For Its Industry?

One good way to get a quick read on what market participants expect of a company is to look at its P/E ratio. If you look at the image below, you can see CEI has a lower P/E than the average (11.9) in the electronic industry classification.

CEI's P/E tells us that market participants think it will not fare as well as its peers in the same industry. Many investors like to buy stocks when the market is pessimistic about their prospects. You should delve deeper. I like to check if company insiders have been buying or selling.

### How Growth Rates Impact P/E Ratios

Companies that shrink earnings per share quickly will rapidly decrease the 'E' in the equation. Therefore, even if you pay a low multiple of earnings now, that multiple will become higher in the future. So while a stock may look cheap based on past earnings, it could be expensive based on future earnings.

CEI increased earnings per share by an impressive 14% over the last twelve months. And earnings per share have improved by 14% annually, over the last five years. With that performance, you might expect an above average P/E ratio. In contrast, EPS has decreased by 10%, annually, over 3 years.

### Don't Forget: The P/E Does Not Account For Debt or Bank Deposits

It's important to note that the P/E ratio considers the market capitalization, not the enterprise value. That means it doesn't take debt or cash into account. In theory, a company can lower its future P/E ratio by using cash or debt to invest in growth.

Such spending might be good or bad, overall, but the key point here is that you need to look at debt to understand the P/E ratio in context.

### So What Does CEI's Balance Sheet Tell Us?

Net debt totals just 0.3% of CEI's market cap. So it doesn't have as many options as it would with net cash, but its debt would not have much of an impact on its P/E ratio.

### The Bottom Line On CEI's P/E Ratio

CEI has a P/E of 11.0. That's below the average in the SG market, which is 13.3. The company does have a little debt, and EPS growth was good last year. If it continues to grow, then the current low P/E may prove to be unjustified.

When the market is wrong about a stock, it gives savvy investors an opportunity. If it is underestimating a company, investors can make money by buying and holding the shares until the market corrects itself. So this free visualization of the analyst consensus on future earnings could help you make the right decision about whether to buy, sell, or hold.

You might be able to find a better buy than CEI. If you want a selection of possible winners, check out this free list of interesting companies that trade on a P/E below 20 (but have proven they can grow earnings).

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.