anything good will be announced at the presentation. This is usually pretty accurate indicator.
And you have studies to back up that assertion that stock price foretells whether presentations are good or bad?
Only facts based on past experience . I sold half today at 6.80 and should sell all as it is so far going the way as it was in most stocks trading this poorly before news. Just stating what history thought me.
Merck must of thought they had something but ran when the horse didn't win the first race. The horse is still alive and there are lots of races left.