you guys don't get itRe-read the article in Dibah42's post - 2 different drugs targetting amyloid protein build up have failed, putting the whole amyloid plaque theory as the cause of AZ into doubt. Prior to these results it was viewed as the most promising avenue for success. TTH's AZD-103 is another drug targetting the removal of amyloid plaques. That is the reason for the recent sell-off.