i'm not so sure of that - my thinking is, it's a sign of weakness - that quick selloff would serve as a test of how much "scared supply" is out there and the resolve of the stock owners .. and it shows they are ready to let go with a quick shake - what follows next logically, is a really good shake :) - so we should look out for a gap tomorrow (another test), the gap itself is not the test, it's the reaction to it.. gap down then move down = time for the big correction (my most expected scenario), gaps down and moves up = there's still some buying appetite.. and so on.. it's a chess game with big money thinking few moves ahead..