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# What Does Coherent, Inc.'s (NASDAQ:COHR) P/E Ratio Tell You?

This article is for investors who would like to improve their understanding of price to earnings ratios (P/E ratios). We'll show how you can use Coherent, Inc.'s (NASDAQ:COHR) P/E ratio to inform your assessment of the investment opportunity. Based on the last twelve months, Coherent's P/E ratio is 26.25. That is equivalent to an earnings yield of about 3.8%.

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

The formula for P/E is:

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

Or for Coherent:

P/E of 26.25 = \$137.12 Ã· \$5.22 (Based on the year to June 2019.)

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

The higher the P/E ratio, the higher the price tag of a business, relative to its trailing 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 Coherent Have A Relatively High Or Low P/E For Its Industry?

We can get an indication of market expectations by looking at the P/E ratio. The image below shows that Coherent has a higher P/E than the average (17.7) P/E for companies in the electronic industry.

Coherent's P/E tells us that market participants think the company will perform better than its industry peers, going forward. Clearly the market expects growth, but it isn't guaranteed. 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. 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. A lower P/E should indicate the stock is cheap relative to others -- and that may attract buyers.

Coherent's earnings per share fell by 48% in the last twelve months. But EPS is up 16% over the last 5 years.

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

Don't forget that the P/E ratio considers market capitalization. Thus, the metric does not reflect cash or debt held by the company. 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).

### Coherent's Balance Sheet

Net debt totals just 4.1% of Coherent's market cap. So it doesn't have as many options as it would with net cash, but its debt would not have much of an impact on its P/E ratio.

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

Coherent's P/E is 26.3 which is above average (17.4) in its market. With some debt but no EPS growth last year, the market has high expectations of future profits.

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 visualization of the analyst consensus on future earnings could help you make the right decision about whether to buy, sell, or hold.

Of course you might be able to find a better stock than Coherent. 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.