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Investor Education - What's the PEG Ratio ?

InvestorEducation / Investing Nov 27, 2006 - 01:42 PM GMT

By: Shahla_Walayat


The Market Oracle is starting off a series of educational articles with the Price Earnings Growth (PEG) Ratio. The PEG ratio compares a companies price/earnings (PE) ratio to its expected Earnings per share (EPS) growth rate

Investor Education - What's the Peg Ratio ?

Taking Google as an example

  • Share Price $505
  • This years EPS is $10.3 (est 2006), divided by NEXT years earnings estimate is 13.7 which represents a 33% growth in earnings (13.7/10.3).
  • Therefore the Peg ratio is calculated as
  • PE = 505 /10.3 = 49
  • Peg Ratio = 49/33% = 1.48

This would suggest that Google is learning towards being expensive, which supports recent MarketOracle analysis on Google.

(Also note many sources suggest comparing this years earnings to last years, that is WRONG, to arrive at the PEG you should compare NEXT years earnings to this years).

How to use the Peg Ratio ?
If the Peg ratio is greater than 1, then this usually suggests that the stock is overvalued as the market is expecting faster future growth. On the other hand if the Peg Ratio is less than 1 then this suggests that the stock is undervalued. Therefore In general, the lower the PEG ratio, the better the value, because the investor would be paying less for each unit of earnings growth.

  • <0.5 =Strong Buy
  • 0.5 to 1 = Buy
  • 1.0 to 1.25 = Hold
  • 1.25 to 2 = Over valued
  • 2+ = SELL

PEG ratio's should not be used in isolation to other indicators, such as price charts, and compare to the Peg ratio of similar stocks i.e. picking the cheapest stock in the best sector. Also note that growth stocks tend to have PE ratios >1.

Many sources of market data readily calculate the Peg ratio and provide extensive FREE financial information on stocks such , (under the company information tab), some of which we will cover in future articles. Remember the PEG ratios is P/E divided by Expected growth (Next year EPS/Cur year EPS).

For now go through your portfolio, create an excel spreadsheet and list the the PEG ratio for each stock and see if they are under or overvalued. How have they performed relative to their market sector ? The peg should give a clue on performance. Also look for stocks that have low PEGs for further analysis. Again the PEG is not to be used on its own.

Shahla Walayat

(c) 2005-2006

Disclaimer - This Article / Analysis is provided for general information purposes only and not a solicitation or recommendation to enter into any market position, and you are reminded to seek independent professional advice before entering into any investments or trading positions.
The Market Oracle is a FREE Financial Markets Forecasting & Analysis online publication. We aim to cut through the noise cluttering traditional sources of market analysis and get to the key points of where the markets are at and where they are expected to move to next

This article maybe reproduced if reprinted in its entirety with links to

© 2005-2019 - The Market Oracle is a FREE Daily Financial Markets Analysis & Forecasting online publication.


28 Nov 06, 21:15
Re: Investor Education - What's the PEG Ratio ?
Thankyou very much for that !

Very enlightening, I will definetly incorporate the PEG ratio into my stock selection strategy and look forward to many more such like articles

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