Market Remains Overvalued, Down From Last Month
Doug Short | Feb 03, 2016 12:39AM ET
Here is a summary of the four market valuation indicators we update on a monthly basis.
- The Crestmont Research P/E Ratio (more )
- The cyclical P/E ratio using the trailing 10-year earnings as the divisor (more )
- The Q Ratio, which is the total price of the market divided by its replacement cost (more )
- The relationship of the S&P Composite price to a regression trendline (more )
To facilitate comparisons, we've adjusted the two P/E ratios and Q Ratio to their arithmetic means and the inflation-adjusted S&P Composite to its exponential regression. Thus the percentages on the vertical axis show the over/undervaluation as a percent above mean value, which we're using as a surrogate for fair value. Based on the latest S&P 500 monthly data, the market is overvalued somewhere in the range of 37% to 78%, depending on the indicator, down from the previous month's 45% to 89%.
We've plotted the S&P regression data as an area chart type rather than a line to make the comparisons a bit easier to read. It also reinforces the difference between the line charts — which are simple ratios — and the regression series, which measures the distance from an exponential regression on a log chart.
The chart below differs from the one above in that the two valuation ratios (P/E and Q) are adjusted to their geometric mean rather than their arithmetic mean (which is what most people think of as the "average"). The geometric mean increases our attention to outliers. In our view, the first chart does a satisfactory job of illustrating these four approaches to market valuation, but we've included the geometric variant as an interesting alternative view for the two P/Es and Q. In this chart the range of overvaluation would be in the range of 47% to 89%, down from last month's 55% to 101%.
The Average of the Four Valuation Indicators
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The next chart gives a simplified summary of valuations by plotting the average of the four arithmetic series (the first chart above) along with the standard deviations above and below the mean.
At the end of last month, the average of the four is 59% -- off its interim peak of 77% in May.
Here is the same chart, this time with the geometric mean and deviations. The latest value of 67% is off its interim high of 86% in May.
As we've frequently pointed out, these indicators aren't useful as short-term signals of market direction. Periods of over- and under-valuation can last for many years. But they can play a role in framing longer-term expectations of investment returns. At present market overvaluation continues to suggest a cautious long-term outlook and guarded expectations. However, at today's low annualized inflation rate and the extremely poor return on fixed income investments (Treasuries, CDs, etc.) the appeal of equities, despite overvaluation risk, is not surprising. For more on that topic, see our periodic update:
- Market Valuation, Inflation and Treasury Yields: Clues from the Past
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