Biotech Values

[CT]

MNTA: Lots of put action in Sep 15's and Oct 14's. Since the Sept 15 2000 contract trade(s) executed at the bid, I'm assuming someone is trying to capture some premium and not taking a bearish position (obviously, given 2 days to expiration). I'm guessing the Oct 14 trade was for a similar reason.

Disclaimer: I sold Oct 14 puts today too. But not the large amount :)