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Although the underlying index suggested some weakness was encountered between December 2009 and January 2010, the less noisy 3 month moving average correctly predicted that the industrial production series would turn positive on a year-over-year basis in January.
This again suggests that the PCI is an accurate and timely predictor of the Feds industrial production series and likely a whole host of other aggregate macroeconomic data series.
The following chart (click for full-screen dynamic version) shows the PCI and the IP series plotted along with their year-over-year percent changes since 2004.