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# Read This Before You Buy Paul Hartmann AG (FRA:PHH2) Because Of Its P/E Ratio

This article is written for those who want to get better at using price to earnings ratios (P/E ratios). To keep it practical, we'll show how Paul Hartmann AG's (FRA:PHH2) P/E ratio could help you assess the value on offer. Paul Hartmann has a price to earnings ratio of 14.27, based on the last twelve months. In other words, at today's prices, investors are paying â‚¬14.27 for every â‚¬1 in prior year profit.

### How Do You Calculate A P/E Ratio?

The formula for P/E is:

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

Or for Paul Hartmann:

P/E of 14.27 = â‚¬296 Ã· â‚¬20.75 (Based on the trailing twelve months 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. 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 Paul Hartmann 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. We can see in the image below that the average P/E (32.1) for companies in the medical equipment industry is higher than Paul Hartmann's P/E.

Its relatively low P/E ratio indicates that Paul Hartmann shareholders think it will struggle to do as well as other companies in its industry classification. While current expectations are low, the stock could be undervalued if the situation is better than the market assumes. 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. That means even if the current P/E is low, it will increase over time if the share price stays flat. Then, a higher P/E might scare off shareholders, pushing the share price down.

Paul Hartmann saw earnings per share decrease by 13% last year. But it has grown its earnings per share by 2.4% per year over the last five years. And EPS is down 4.2% a year, over the last 3 years. This could justify a low P/E.

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

The 'Price' in P/E reflects the market capitalization of the company. In other words, it does not consider any debt or cash that the company may have on the balance sheet. In theory, a company can lower its future P/E ratio by using cash or debt to invest in growth.

Spending on growth might be good or bad a few years later, but the point is that the P/E ratio does not account for the option (or lack thereof).

### How Does Paul Hartmann's Debt Impact Its P/E Ratio?

Net debt totals just 2.8% of Paul Hartmann's market cap. The market might award it a higher P/E ratio if it had net cash, but its unlikely this low level of net borrowing is having a big impact on the P/E multiple.

### The Bottom Line On Paul Hartmann's P/E Ratio

Paul Hartmann trades on a P/E ratio of 14.3, which is below the DE market average of 18.7. The debt levels are not a major concern, but the lack of EPS growth is likely weighing on sentiment.

Investors should be looking to buy stocks that the market is wrong about. If the reality for a company is not as bad as the P/E ratio indicates, then the share price should increase as the market realizes this. Although we don't have analyst forecasts, shareholders might want to examine this detailed historical graph of earnings, revenue and cash flow.

You might be able to find a better buy than Paul Hartmann. 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.