What is dampening the Christmas spirit for many is anger at the financial sector and the huge bonuses their executives got for screwing the rest of us over—twice (Source: http://www.noquarterusa.net/blog/38857/santa-got-mugged/)
These words were written on Dec 23, 2009 in similar circumstances, when market dump all it's gain during Santa Rally.
Expect a gap down opening tomorrow as US has shaded all major gain during Santa rally. Be ready for major correction next week. If history to follow January is not a good month for Bulls.