RNA...I know that DD is verboten, but... :-)
A DeutscheBank analyst who follows the biotech sector closely and Prosensa (RNA) specifically, says there's a good chance that they simply didn't use a high enough dose of the drug in the Phase III test. “Today’s news may suggest getting to market may be harder, but we think they will get there.”
Good company, not a scam. Loaded up in pre-market around 6, bought more at 7, going to hold for awhile.