Comparing SKU volatility to the stock market is genius.

I ran the numbers based on the monthly close of the S&P500 and the COVs the last few years were:
2005=0.024
2006=0.040
2007=0.030
2008=0.155
2009=0.130
2010=0.059
2011=0.054

When we run the same analysis on GLD, which represents the price of Gold, the highest COV value from the last few years is 0.095 (from 2011 so far). I wish we had SKUs as predictable as that.