Agree with Robertj1) You have NO idea how many shares that are currently owned by institutions will not be able to participate.
It doesn't take many. Most of the stock is owned by large institutions.
2) The market is far from perfect ... there will be an imbalance .... on which side, who knows?
You're arguing against the very tenets of the laws of supply and demand. Nobody is going to hold on for $420 when they can sell for $420,01. You're dreaming if you think they will.