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# Is STEF S.A.'s (EPA:STF) P/E Ratio Really That Good?

The goal of this article is to teach you how to use price to earnings ratios (P/E ratios). We'll apply a basic P/E ratio analysis to STEF S.A.'s (EPA:STF), to help you decide if the stock is worth further research. Based on the last twelve months, STEF's P/E ratio is 9.83. That corresponds to an earnings yield of approximately 10.2%.

See our latest analysis for STEF

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

The formula for price to earnings is:

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

Or for STEF:

P/E of 9.83 = â‚¬80.70 Ã· â‚¬8.21 (Based on the year to June 2019.)

### Is A High P/E Ratio Good?

A higher P/E ratio means that buyers have to pay a higher price for each â‚¬1 the company has earned over the last year. That is not a good or a bad thing per se, but a high P/E does imply buyers are optimistic about the future.

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

The P/E ratio essentially measures market expectations of a company. If you look at the image below, you can see STEF has a lower P/E than the average (11.2) in the transportation industry classification.

Its relatively low P/E ratio indicates that STEF shareholders think it will struggle to do as well as other companies in its industry classification. Since the market seems unimpressed with STEF, it's quite possible it could surprise on the upside. It is arguably worth checking if insiders are buying shares, because that might imply they believe the stock is undervalued.

### 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. Earnings growth means that in the future the 'E' will be higher. 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.

STEF increased earnings per share by 5.4% last year. And earnings per share have improved by 15% annually, over the last five years.

### A Limitation: P/E Ratios Ignore Debt and Cash In The Bank

Don't forget that the P/E ratio considers market capitalization. So it won't reflect the advantage of cash, or disadvantage of debt. In theory, a company can lower its future P/E ratio by using cash or debt to invest in growth.

Such expenditure might be good or bad, in the long term, but the point here is that the balance sheet is not reflected by this ratio.

### Is Debt Impacting STEF's P/E?

STEF's net debt is 69% of its market cap. If you want to compare its P/E ratio to other companies, you should absolutely keep in mind it has significant borrowings.

### The Verdict On STEF's P/E Ratio

STEF's P/E is 9.8 which is below average (17.9) in the FR market. While the recent EPS growth is a positive, the significant amount of debt on the balance sheet may be contributing to pessimistic market expectations.

Investors should be looking to buy stocks that the market is wrong about. If it is underestimating a company, investors can make money by buying and holding the shares until the market corrects itself. So this free report on the analyst consensus forecasts could help you make a master move on this stock.

But note: STEF may not be the best stock to buy. So take a peek at this free list of interesting companies with strong recent earnings growth (and a P/E ratio below 20).

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.

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. Thank you for reading.