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What Is Diploma's (LON:DPLM) P/E Ratio After Its Share Price Tanked?

Simply Wall St

To the annoyance of some shareholders, Diploma (LON:DPLM) shares are down a considerable 32% in the last month. Even longer term holders have taken a real hit with the stock declining 5.9% in the last year.

Assuming nothing else has changed, a lower share price makes a stock more attractive to potential buyers. While the market sentiment towards a stock is very changeable, in the long run, the share price will tend to move in the same direction as earnings per share. So, on certain occasions, long term focussed investors try to take advantage of pessimistic expectations to buy shares at a better price. One way to gauge market expectations of a stock is to look at its Price to Earnings Ratio (PE Ratio). A high P/E implies that investors have high expectations of what a company can achieve compared to a company with a low P/E ratio.

Check out our latest analysis for Diploma

How Does Diploma's P/E Ratio Compare To Its Peers?

Diploma's P/E of 24.92 indicates some degree of optimism towards the stock. You can see in the image below that the average P/E (11.0) for companies in the trade distributors industry is lower than Diploma's P/E.

LSE:DPLM Price Estimation Relative to Market, March 18th 2020

Diploma's P/E tells us that market participants think the company will perform better than its industry peers, going forward. The market is optimistic about the future, but that doesn't guarantee future growth. So investors should always consider the P/E ratio alongside other factors, such as whether company directors have been buying shares.

How Growth Rates Impact P/E Ratios

Generally speaking the rate of earnings growth has a profound impact on a company's P/E multiple. When earnings grow, the 'E' increases, over time. That means even if the current P/E is high, it will reduce over time if the share price stays flat. Then, a lower P/E should attract more buyers, pushing the share price up.

Diploma increased earnings per share by an impressive 15% over the last twelve months. And its annual EPS growth rate over 5 years is 12%. So one might expect an above average P/E ratio.

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

The 'Price' in P/E reflects the market capitalization of the company. So it won't reflect the advantage of cash, or disadvantage of debt. Hypothetically, a company could reduce its future P/E ratio by spending its cash (or taking on debt) to achieve higher earnings.

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).

Is Debt Impacting Diploma's P/E?

Diploma's net debt is 1.0% of its market cap. It would probably trade on a higher P/E ratio if it had a lot of cash, but I doubt it is having a big impact.

The Verdict On Diploma's P/E Ratio

Diploma's P/E is 24.9 which is above average (11.9) in its market. While the company does use modest debt, its recent earnings growth is very good. So on this analysis it seems reasonable that its P/E ratio is above average. Given Diploma's P/E ratio has declined from 36.4 to 24.9 in the last month, we know for sure that the market is significantly less confident about the business today, than it was back then. For those who don't like to trade against momentum, that could be a warning sign, but a contrarian investor might want to take a closer look.

Investors should be looking to buy stocks that the market is wrong about. If the reality for a company is better than it expects, you can make money by buying and holding for the long term. So this free visual report on analyst forecasts could hold the key to an excellent investment decision.

Of course you might be able to find a better stock than Diploma. So you may wish to see this free collection of other companies that have grown earnings strongly.

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.