During the summer'06 sell-off, the peak in implied volatility of volatility coincided with the peak in volatility itself. This time, the VIX has come back (settled down) quite a bit while the implied volatility of the VIX is still inching higher. Also, while the VIX itself never scaled the heights reached in 2006, its implied has.
Edited by kaiser soze, 21 March 2007 - 11:11 AM.