Quote from smilingsynic:
70% range = 1370.75-1333
80% range = 1375.25-1328.50
90% range = 1382-1322
Yes, I know how they're used (I've seen Kevin Haggerty's material), but the odds that a certain price will be touched are different than the odds that price will close for the day at that level.
Above are my calculations for the day based on a spreadsheet I wrote based on Brownian motion. They are the odds, based on the VIX, that price will at least TOUCH certain levels.
70% does not mean that the odds are 70% that price will touch. Rather, the odds are 70% that price will NOT touch those levels.