The pros (shorts, day traders, and hedgies) have had plenty of time to prepare for this day. They have this hedged every which way.
They will play with it until sometime right before ASH and then let it go where it may.
$9 by mid December, $11.50 buy out by January.
Just my humble speculation.
Manipulation, some funds saw the big news and wanted to steal shares from retail investors with weak hands. I expect a new 52 week high soon enough, just hold. This news today was huge, as good as it gets, and trading above $7 was absolutely justified, if not $10.