I think best case if great news is released with PDD the stock goes up to 7,8,9,10+, whatever the case maybe....there might be alot of profit taking in the beginning...but i dont think we will fall back to 5 after the dust settles.
The massive short covering and the hysteria of people wanting to get in before the next big news of rett and alz will keep the stock price high and higher IMO.
If PDD news is good to great....then the whole mometum changes. People will believe then Rett is going to a success as well and possibly Alz.