This chart shows the year-over-year change in Industrial Production, in relation to the S&P 500. Industrial Production measures output from the US manufacturing base. High Production signifies a strong, vibrant economy, and can stimulate a bullish stock market.
Note the falloff in Industrial Production during recessionary times.
Industrial Production Chart
( HINT: Click-and-drag left-to-right on the top chart (S&P 500) to zoom in to a specific date range. Double-click on S&P 500 chart to zoom back out. )