Mush 1 ....Been and gone in May 2017 ..
But your example is pretty valid
gxy 100000 units 20/5/2017 disappeared from your Chess account...
became gxyda 20000 for 2 days from 22/05/2017 ( gxyda was a temporary defered set of stock lettering)
and morphed into gxy 20000 24/05/2017
I did not lose a single share.
I have not sold a single share ...
