re: biotechs that will double don't know if they will double, but PSV should be on your watchlist,
BNP Baribas have been buying up and increasing their holdings on behalf of major banks and fundies, bought in early May and topped up twice since now hold about 50 mill shares
usually a good sign as they have done the homework for you
cheers
PS you know I have my 3 bagger in BTA was a 6 bagger at one point
