Here at the forums we're on top of this news and follow it closely, but the outside investment community is still learning about this, digesting it, and is yet to fully react.  ETH will definitely trend lower for the next week or so, and then at the 21 day mark when the child DAO either is released or is forcibly stopped, either way on that day those still holding their ETH will dump anew. 

Even if you still believe in ETH, stay away for the next month or so until this all fleshes out.  Markets hate uncertainty, and ETH is nothing but uncertain right now.