A couple of things working against ACTV this morning. First, the new price targets don't matter so much as the number of downgrades...those scared investors. A lowered target doesn't mean a stock will get close to the new lower range.
Second, this is a low float, low volume stock. Any news, good or bad, will have an exaggerated effect on a low float stock.
Another thing is that this has attracted day traders who started buying on speculation between 6.50 to 5.60 a share, rather heavily. These traders need to move out of this stock before it rises more. Buying and selling by daytraders is one thing that moved this dramatically below 5.50. I.e they panicked and bailed.