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Don't Sell CarGurus, Inc. (NASDAQ:CARG) Before You Read This

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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 CarGurus, Inc.'s (NASDAQ:CARG), to help you decide if the stock is worth further research. CarGurus has a P/E ratio of 66.62, based on the last twelve months. That is equivalent to an earnings yield of about 1.5%.

View our latest analysis for CarGurus

How Do You Calculate A P/E Ratio?

The formula for P/E is:

Price to Earnings Ratio = Price per Share ÷ Earnings per Share (EPS)

Or for CarGurus:

P/E of 66.62 = $39.89 ÷ $0.60 (Based on the year to December 2018.)

Is A High Price-to-Earnings Ratio Good?

A higher P/E ratio implies that investors pay a higher price for the earning power of the business. 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.'

How Growth Rates Impact P/E Ratios

Earnings growth rates have a big influence on P/E ratios. If earnings are growing quickly, then the 'E' in the equation will increase faster than it would otherwise. Therefore, even if you pay a high multiple of earnings now, that multiple will become lower in the future. So while a stock may look expensive based on past earnings, it could be cheap based on future earnings.

CarGurus's 371% EPS improvement over the last year was like bamboo growth after rain; rapid and impressive.

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

We can get an indication of market expectations by looking at the P/E ratio. As you can see below, CarGurus has a higher P/E than the average company (30.6) in the interactive media and services industry.

NasdaqGS:CARG Price Estimation Relative to Market, May 3rd 2019

Its relatively high P/E ratio indicates that CarGurus shareholders think it will perform better than other companies in its industry classification. Clearly the market expects growth, but it isn't guaranteed. So investors should delve deeper. I like to check if company insiders have been buying or selling.

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

One drawback of using a P/E ratio is that it considers market capitalization, but not the balance sheet. In other words, it does not consider any debt or cash that the company may have on the balance sheet. The exact same company would hypothetically deserve a higher P/E ratio if it had a strong balance sheet, than if it had a weak one with lots of debt, because a cashed up company can spend on 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 CarGurus's P/E?

CarGurus has net cash of US$158m. That should lead to a higher P/E than if it did have debt, because its strong balance sheets gives it more options.

The Verdict On CarGurus's P/E Ratio

With a P/E ratio of 66.6, CarGurus is expected to grow earnings very strongly in the years to come. Its net cash position is the cherry on top of its superb EPS growth. To us, this is the sort of company that we would expect to carry an above average price tag (relative to earnings).

When the market is wrong about a stock, it gives savvy investors an opportunity. As value investor Benjamin Graham famously said, 'In the short run, the market is a voting machine but in the long run, it is a weighing machine.' 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 CarGurus. So you may wish to see this free collection of other companies that have grown earnings strongly.

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.