The relative timing of MNTA's downward slide is clearly tied to TEVA's press releases on T-enox. Both the big sell off in July-August and last weeks minor deficiency letter, have had a significant share price erosion effect.
What is amazing is that the same essential news by Teva can bring MNTA down to its pre m-enox share price without damaging the credibility of Teva.
In July it was "any day" In OCT it was by year end In January it was "minor deficiency"
I wouldn't have thought to get more mileage from the same empty prognostications but they do.