Wait, What's A PEG Ratio?

Michael Goldenberg |

PEG Ratio

What Is It?

Should I Even Care?

What is a PEG Ratio?

The price-to-earnings-to-growth ratio, or PEG ratio, is a valuation metric used to determine a stock's value while also factoring in the company's expected earnings growth. The PEG ratio is calculated by dividing the price-to-earnings ratio (P/E ratio) by the company's expected earnings growth rate.

A lower PEG ratio indicates that a stock is undervalued, while a higher PEG ratio indicates that a stock is overvalued. A PEG ratio of 1 is considered to be neutral.

There is no one-size-fits-all answer to the question of what is a good PEG ratio. The ideal PEG ratio will vary depending on the industry and the company's specific growth prospects. However, a general rule of thumb is that a PEG ratio of less than 1 is considered to be undervalued, while a PEG ratio of more than 2 is considered to be overvalued.


What To Keep In Mind

It is important to note that the PEG ratio is just one of many factors that investors should consider when making investment decisions. Other factors to consider include the company's financial strength, competitive landscape, and management team.

Moreover, the PEG ratio is only a snapshot of a company's value. The ratio can change over time as the company's earnings and growth prospects change. Investors should use the PEG ratio in conjunction with other valuation metrics to make informed investment decisions.

Here are some of the limitations of the PEG ratio:

  • The PEG ratio is based on earnings growth estimates, which can be inaccurate.
  • The PEG ratio does not take into account other factors that can affect a company's value, such as its financial strength or competitive landscape.
  • The PEG ratio is a relative valuation metric, meaning that it can only be used to compare stocks within the same industry.

Despite its limitations, the PEG ratio can be a useful tool for investors who are looking for undervalued stocks. By comparing the PEG ratio of a stock to the PEG ratios of other stocks in the same industry, investors can get a better sense of whether a stock is undervalued or overvalued.


Want to know more?  Then be sure to consult with your financial professional.


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Matt Butler

Investment Executive 

AFIN Family Wealth Management

One Northfield Plaza, Suite 521, Northfield, IL 60093

Direct: 630-686-3267  

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