More buying?? Already more than 30M shares traded so far today! There were buyers for all of them.
If you mean more upward pressure, do not forget a lot of investors here who bought in early and taking profits after the news. Once they are out, it will be a more 'fair' battle. With enough new buyers this will gradually rise again.
If 6,30 (or thereabout) is the bottom after the selling-on-approval, I am fine with that. Next leg up could be buyout speculations.