Should We Worry About Pfizer Inc.'s (NYSE:PFE) P/E Ratio?

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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 Pfizer Inc.'s (NYSE:PFE) P/E ratio to inform your assessment of the investment opportunity. What is Pfizer's P/E ratio? Well, based on the last twelve months it is 21.08. In other words, at today's prices, investors are paying $21.08 for every $1 in prior year profit.

See our latest analysis for Pfizer

How Do I Calculate Pfizer's Price To Earnings Ratio?

The formula for P/E is:

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

Or for Pfizer:

P/E of 21.08 = $41.72 ÷ $1.98 (Based on the year to March 2019.)

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. That isn't necessarily good or bad, but a high P/E implies relatively high expectations of what a company can achieve in the future.

How Growth Rates Impact P/E Ratios

P/E ratios primarily reflect market expectations around earnings growth rates. When earnings grow, the 'E' increases, over time. That means unless the share price increases, the P/E will reduce in a few years. And as that P/E ratio drops, the company will look cheap, unless its share price increases.

Pfizer's earnings per share fell by 46% in the last twelve months. But EPS is up 3.6% over the last 5 years.

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

The P/E ratio essentially measures market expectations of a company. As you can see below, Pfizer has a higher P/E than the average company (19.4) in the pharmaceuticals industry.

NYSE:PFE Price Estimation Relative to Market, May 30th 2019
NYSE:PFE Price Estimation Relative to Market, May 30th 2019

Its relatively high P/E ratio indicates that Pfizer 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

Don't forget that the P/E ratio considers market capitalization. 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.

While growth expenditure doesn't always pay off, the point is that it is a good option to have; but one that the P/E ratio ignores.

How Does Pfizer's Debt Impact Its P/E Ratio?

Pfizer's net debt is 15% of its market cap. That's enough debt to impact the P/E ratio a little; so keep it in mind if you're comparing it to companies without debt.

The Bottom Line On Pfizer's P/E Ratio

Pfizer's P/E is 21.1 which is above average (17.3) in the US market. With some debt but no EPS growth last year, the market has high expectations of future profits.

Investors have an opportunity when market expectations about a stock are wrong. 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 visualization of the analyst consensus on future earnings could help you make the right decision about whether to buy, sell, or hold.

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

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