With the rest of the PDD data and the Rett data coming out very soon, most likely in the next 2 weeks, the share price could skyrocket. IMO.
Let us hope so - need to get 2 birds with one stone; good/stellar results and only then, the corresponding spike in pps.
However, do not be surprised if it is going to be 2021 for PDD and Rett data to come out, especially if they are still 'cleaning up' the Rett data. (Also, last week of December is basically a holiday - no point releasing any update).