Just look, on Tuesday the world was ending with the Cons. Confidence #s, and it looked bleak, but now just a day later all's well...hell it's downright euphoric again...come on, if you don't think this is manipulated?
Also checkout the Greenspan Put theory, where Elmer rescues the market at every turn, 1998 (LTCM, Russia), 2001 (Early Jan, looks dire, boom Jan 3, 01, surprise rate cut!, same Apr 01, Sept, 01); Nice rally of Oct low's just like July's, but can't let this one fall apart..so Nov 6, boom 50bp cut! Without these measures we would most likely be at a lot lower prices.
I don't care if they are rigged really (actually helps trading), just pointing out how desperate the Govt is to keep things up after the biggest bubble of all time.