S&P Mirror Chart, 06/11/08
An interesting experiment during the 2000-02 correction was to take the mirror image of the path upand see how closely the path down would follow it.
Here is that excercise again applied to 2000-02 (red) and now to 2003-07 (red). The redline is the projected path of the S&P when taken as a mirror image of the path up.
Data (blue) through 6/6/2008.