How to Identify an Undervalued Stock


It's not easy to find a great stock. In almost every case, investors have already priced good and bad news about the company into the stock's share price. But every once in a while, the market misprices a stock. So how do you find these hidden gems?

A company's price-to-earnings ratio, or P/E, is one of the fundamental metrics that every stock picker should know. It's is a great place for every investor to start when trying to find undervalued stocks to purchase.

How to Calculate a P/E Ratio

To calculate a company's P/E ratio, simply divide the share price of a company's stock with its earnings per share. (For an apples-to-apples comparison, be sure to calculate the ratio on a per-share basis.)

For example, if a company has a share price of $40 and earns a profit of $2 a share, its P/E ratio is 20. If the company's price per share were to increase to $60 and its profits remained the same, it would see its P/E ratio jump to 30.

P/E Ratio Shows You If a Company's Stock Is Undervalued

A company's P/E ratio is a leading indicator of an undervalued stock. A lower P/E ratio shows investors that a lower-priced stock is earning a larger profit. A higher P/E ratio indicates that a stock is more expensive or might not be earning a lot of profit when compared to the price of a share of its stock.

P/E ratios are relative, and should only be compared to those of other companies within the same industry or sector.
So, it isn't fair or even accurate most times to, for example, compare the P/E of a technology company with that of a consumer products company, as these industries typically have different P/E ratio levels.

Technology companies frequently command a higher price for their stock, despite the lack of big profits. It isn't unusual to see some technology companies with a P/E of 40 or more. Conversely, consumer staples and blue chip companies often have a lower P/E. It's important to compare companies within their own industry to identify buying opportunities.

Compare Companies Within Industries for the Most Insight

One of the best ways to find a stock to invest in is to compare a company to its industry average. You can easily find the P/E ratio for industries and even entire indexes online. They will provide you with a baseline for comparison.

For example, Dr. Pepper Snapple Group (DPS) had a P/E ratio of 15.45 at yesterday's closing bell.
Dr. Pepper's largest competitor, the Coca-Cola (KO), has a P/E Ratio of 20.68. National Beverage (FIZZ), the maker of Shasta and other popular sodas, has a P/E ratio of 21.96. And, on average, the non-alcoholic beverage industry has a P/E ratio of approximately 20.7.

So what do these numbers tell us? Solely using the P/E ratio as the only metric, Dr. Pepper Snapple Group looks undervalued compared to its peers. Dr. Pepper's current share price is $47.72. If the company had a P/E ratio comparable to Coca-Cola's 20.68, then investors should actually expect the price of Dr. Pepper's stock to be closer $63.90 a share.

This is a quick example to show you how to use a company's P/E ratio to find potentially mispriced stocks. Investors compare companies to others in the same industry. It shows a potentially undervalued stock. While there are a few other characteristics that make Dr. Pepper and Coca-Cola a little different from each other, the P/E ratio presents an opportunity for investors and warrants more investigation.

When you examine a company's P/E ratio, you can quickly identify many price inequalities. It's a great tool and should be the first metric investors use when looking for a new stock.

Do you use the price-to-earnings ratio to find great companies to invest in? Is it the first metric you scrutinize when buying? What other key metrics do you look at to find a great stock?

Disclaimer: I currently own shares of both Dr. Pepper Snapple Group and the Coca-Cola Company. I continue to purchase new shares each month using dollar cost averaging through both companies' dividend reinvestment plans.

Hank Coleman is a financial planner and the publisher of the popular personal finance blog Money Q&A, where he answers readers' tough money questions. Follow him on Twitter @HankColeman.

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Using the P/E is over simplification. Debt ratio, dividend rate, free cash flow, NON-financial statement events (like an expiring patent, etc.) are all equally important - maybe more important as they drive the P/E, the P/E is a result...but you have to work back from the result to draw any actionable conclusion.

January 10 2014 at 4:16 PM Report abuse +2 rate up rate down Reply

Portfolio manager Chris speaks of the 2012 elections being a while away in the video. Try posting something current to today's economic environment. Your article is outdated and irrelevant.

January 10 2014 at 1:24 PM Report abuse +1 rate up rate down Reply

the price of a stock is based on what?
the same thing our dollar is based on?

January 10 2014 at 11:22 AM Report abuse -1 rate up rate down Reply


January 10 2014 at 11:06 AM Report abuse -2 rate up rate down Reply
1 reply to pdbliz's comment

when the president divides the country instead of uniting it? when he continues to run amok with power and deficit spending? when he lives in luxury while wrecking the economy for us?

January 10 2014 at 11:23 AM Report abuse -2 rate up rate down Reply
1 reply to scottee's comment

Stop picking on GW Bush...

January 10 2014 at 4:09 PM Report abuse +2 rate up rate down

I never buy stocks during record highs like right now, but if you must, here are some tips worth a fortune:
The P/E ratio tells you the "quality" of a stock. The P/E ratio can be used for comparison purposes too but really it is telling you how much money the company is making.
For example, you probably wouldn't want to invest in a company with a 100/1 P/E ratio even if it was the best performer in the group - a 100/1 P/E ratio means the company is only making a dollar income on your $100 investment or 1% return.

The fundamental thing that makes a stock increase in value is it's book value. What is book value ? It's the amount of money you would have if you sold the entire company.
A company's book value increases when it takes the yearly profits and invests it in land, buildings, and other stocks or assets increasing the total value of the company.
A well managed company will gain value over the long term increasing the value of its shares and the value of your investment. Ideally, this is what you want when you buy a stock.

January 10 2014 at 8:00 AM Report abuse +2 rate up rate down Reply