I think (it's my opinion) that TEVA is very likely based on what I have read. IIt's also the market's opinion based on all information to date. Hence the stock being back in the $16 area today.
The stock price is just a popularily contest and people vote with their $$$, today the people have declared that TEVA is more likely then not compared with a day ago, rightly or wrongly - perception is that they will - hence the mid teens price today.
News could come out next week that tips the scales the other way and it would seem cheap @ $25
And the point of that comment is that if you get some color that the TEVA application has an issue and will be held up for an extra year or 2 - then the perception will be that MNTA looks quite cheap at $25. That isn't the market's opinion today. The situation is dynamic - but until someone can shed some light on the "unknown" of TEVA approval if any - the uncertainty will swing both ways. You'll get days of panic like today and days where there's euphoria at the prospect of a decade of no competion - people's expectations will be overly pessimistic and overly optimistic.