SPX and VXO-related charts authored by "mss", and he has granted permission to share:
see the "reply-to" post for other VXO charts
*** his analysis comments to me on May 1, 2010 for a track-record reference - (My analysis suggests we will go much higher---but from where? Sticking with the SPX $1170-75 bottom and $1235-40 high, until I get different data.)