Who else is cashing in before the fork wipes out Bitcoin? I don't have much but will quit while I'm ahead. 
A bunch of clever people wants you to panic and wants you to sell. They know where this is going and they are buying up all the "PanicCoins"
when people like you are running away from Bitcoin. Bitcoin was developed in this way for competing technologies to "battle" it out for
supremacy and if you want to run away when this happens... then you missing the whole point of this.
from Kprawn said, i think this why we can see the price is always changing over and over in a day and its really makes panic buying and selling in the market. maybe the big player was battle with the other big player and we can only follow from what happen in the market as if we are not follow then i think we are hard to make profit too from this situations. i don't know who is getting out but i think people which have big amount will stand as the winner, maybe.