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# Should You Be Tempted To Sell EnerSys (NYSE:ENS) 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). We'll apply a basic P/E ratio analysis to EnerSys's (NYSE:ENS), to help you decide if the stock is worth further research. EnerSys has a price to earnings ratio of 18.06, based on the last twelve months. That is equivalent to an earnings yield of about 5.5%.

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

The formula for price to earnings is:

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

Or for EnerSys:

P/E of 18.06 = \$68.35 Ã· \$3.79 (Based on the trailing twelve months to March 2019.)

### Is A High Price-to-Earnings Ratio Good?

A higher P/E ratio means that investors are paying a higher price for each \$1 of company earnings. 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 EnerSys 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. As you can see below EnerSys has a P/E ratio that is fairly close for the average for the electrical industry, which is 18.1.

That indicates that the market expects EnerSys will perform roughly in line with other companies in its industry. 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

Generally speaking the rate of earnings growth has a profound impact on a company's P/E multiple. Earnings growth means that in the future the 'E' will be higher. Therefore, even if you pay a high multiple of earnings now, that multiple will become lower in the future. Then, a lower P/E should attract more buyers, pushing the share price up.

EnerSys increased earnings per share by a whopping 35% last year. And it has bolstered its earnings per share by 3.6% per year over the last five years. So we'd generally expect it to have a relatively high P/E ratio.

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

One drawback of using a P/E ratio is that it considers market capitalization, but not the balance sheet. Thus, the metric does not reflect cash or debt held by the company. Theoretically, a business can improve its earnings (and produce a lower P/E in the future) by investing in growth. That means taking on debt (or spending its cash).

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 EnerSys's Balance Sheet Tell Us?

EnerSys has net debt equal to 25% of its market cap. While it's worth keeping this in mind, it isn't a worry.

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

EnerSys's P/E is 18.1 which is about average (18.1) in the US market. Given it has reasonable debt levels, and grew earnings strongly last year, the P/E indicates the market has doubts this growth can be sustained. Since analysts are predicting growth will continue, one might expect to see a higher P/E so it may be worth looking closer.

Investors have an opportunity when market expectations about a stock are wrong. 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.

You might be able to find a better buy than EnerSys. 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.