First off, there was no sell off until about 11:45... look at the volume. With some message boarders calling fire, they created the jitters and there was a spike in volume. But then more sophisticated investors jumped in to snap up shares at a reduced price and it has begun to slowly reverse itself. All stocks have manipulators, and they are most able to manipulate when the over all market is in decline and nervous.
A very small increase since, but it occurred while the overall market has declined. If you look at the trading pattern of ATPG, you will see that movements of this amount have happened frequently, sometimes for reasons that are not apparent. It could just as easily swing back. Unless the market drops, my bet is that we will see a sizeable gain this afternoon.