A Look At The PEG Ratio: Earnings Growth Versus Valuation

In an article I wrote about a week ago, I reviewed the current P/E (price earnings ratio) of the sectors that comprise the S&P 500 Index. The article included the below chart which compared the current sector P/Es to the respective sector's average P/E and minimum P/E over the past ten years. the article noted some of the income or yield producing sectors were trading at elevated valuations.

Simply because the P/E for a sector is high, and the same applies to individual stocks, this does not necessarily mean the sector or stock is overvalued. Importantly, the P/E should be compared to the earnings growth rate for each sector or company. By dividing the P/E by the earnings growth rate, one obtains the PEG ratio (PE to growth rate.) A good discussion on this is contained in an article on the CFA Institute's Inside Investing blog, Is It Overvalued? Look at the PEG Ratio. When evaluating the PEG, a PEG of 1.0 is an indication a sector or company is fairly valued. If the PEG is less than 1.0, this is an indication the sector or company may be undervalued. Conversely, PEGs greater than 1.0 are indications of overvaluation relative to fair value.

As can be seen in the above chart, the energy sector is trading at a P/E of greater than 40, but what is the PEG? Below is a chart comparing the sector P/Es to each sector's PEG ratio. The growth rate used in the denominator is Thomson Reuters' I/B/E/S earnings growth rate for Q2 2017, or one year forward.

Below is the table detailing the earnings growth rates for each sector as reported in Thomson Reuters' 7/8/2016 This Week In Earnings report.

Clearly, the PEG for the utility sector shows investors that are buying utility stocks are paying up for the single digit earnings growth. As discussed in last week's post, one reason this has occurred is investors are purchasing dividend yielding investments in part because they are unable to get that yield in bonds. This reach for yield appears to have pushed some of these yielding sectors and stocks to elevated valuation levels. The first chart in this article does show the forward P/E for utilities is higher than the 10-year average P/E for the sector as well.

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Disclosure: None.

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