"topping up" on open tomorrow?
Likely when it happens, it will very much be a case of you either own them, or not.
Seeing their testing program is a daylight hours task, they will either dump the news before the open, or call a trading halt.
In either case, positive news will fix the dilemma and rapidly turn it into the haves, and have nots - where each group should get to witness an ATH.