The Q Ratio and the Market
January 5, 2011

In response to a request, I'm posting an overlay of the Q Ratio adjusted to its arithmetic mean and the US market, using the S&P Composite as a broad index of market prices since the beginning of the last century. The Composite index is shown above on a log scale vertical axis with an exponential regression, which bisects the index in a fashion similar to the arithmetic mean for the Q Ratio. As the overlay clearly illustrates, the Q Ratio is not a leading or lagging indicator. Rather it is coincident indicator of the relative valuation of the overall market.

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If we rotate the top data series in the chart above clockwise about 19 degrees (so that the regression is horizontal) and align the regression with the Q Ratio mean, we essentially get the chart below, which also includes a third data series, the P/E10 ratio. For more about this three-way overlay, see this monthly update.

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Now, wasn't that fun?